Electrical Troubleshooting Manual - Part 2
Contents
1. Handlebar Illumination From 5188 on page 4 1 BRN WHT Y C138 C57 WHT CRUISE COMBINATION CAUSE CONTROL SWITCH CRUISE CONTROL SWITCH SWITCH ON RESUME ILLUMINATION SWITCH SE ONLY P can Y 057 W C138 BLK YEL y Handlebar Illumination 5245 BLK BLU BLK YEL BLK BLU 6198 C94 BLK YEL C318 C322 71 FRONT CLUTCH 1 CRUISE WHT BLU WHT YEL 14 4 LIGHT CANCEL CRUISE SWITCH C319 CANCEL C323 GRN WHT SWITCH C138 C94 emn Y sme JY d lox s Das GRN WHT GRN BLU ED BUEL WATA WNA C135 ROTE r FX TERT CRUISE SWITCH Input Accel Input Decel Input UNIT Open with 4th Gear Input OD Input Solid state throttle turned lt lt DO not check BRN RED past idle rest position RED WHT GRN ORN C135 resistance 22 27 20000002 a NEUES C33 SENET Engine RED WHT cow f FINDER Engine C133 Control 9 5144 S185 ara Control GRN WHT System sewer GRN ORN System REAR BRAKE 2 2 59 CRUISE ae err Ey 7777 GEAR CANCEL POSITION SWITCH SWITCH BRN RED 1 4 1 C133 LI 2 5246 62. ee GRN BLK GRN BLK C16 GRN BLK WHT BLK C108 85145 WHT BLK 5238 16 YEL RED GRN BLK See Ground Distribution WHT BLK 293 2 6 1 Solid state C33 Do not check GRN resistance 22 i See Ground YEL RED Distribution 1 2 10 C135 WHT BLK T 1 CRUISE TURN CRN GRN BLK CONTROL input SIGNAL UNIT CANCEL L 4 Solid state 4 CONTROL 7 Donotcheck UNIT resistance olid state Do not check G100 8 Gi03 resistance Crankshaft Speed Note For Ignition Battery and Grounding details of the Engine Control Module ECM see page 3 0 ENGINE Crankshaft CONTROL Crankshaft Speed Input Speed MODULE Output ecm Common Asp amp SE 8 7 5 Only fe 2 aie ee 22 62027 C49 WHT YEL WHT BLU C63 GRN BLK WHT BLK WHT YEL WHT BLU IGNITION PULSE GENERATOR 1 C33 IGNITION 2201 PULSE C135 GENERATOR 2 CRUISE Sbeedinput CONTROL 1 UNIT YEL BLU CRANKSHAFT LI ERREUR BLU GRN BLK Asp amp SE 196 Int sase See Engine Control System page 3 2 Headlights Circuit Schematic HOT IN ON HOT IN ON HOT IN ON HOT AT ALL Pug UD um ea
3. 5111 BRN BRN 1 1 1 77 Left Rear Light License BRN 1 Assembly Plate Light 7 C189 Optional opine nm RIGHT 3 L Solid state ASSEMBLY L Fee GRN C189 Optional See Ground Distribution page 2 9 See Ground Distribution 1 2 9 row C192 1 LEFT SADDLEBAG RIGHT SADDLEBAG MARKER LIGHT MARKER LIGHT GRN 1 8 G100 Revised May 1998 1998 GL1500 1998 American Honda Motor Co Inc All Rights Reserved 9 2 MSV 8022 9803 Cornering Lights Asp Only Circuit Schematic FUSE ALL TIMES HOT IN HOT AT ALL TIMES RELAY SS m 2 TAIL METER TURN STOP POSITION 5108 260 Power RELAY FUSE py Distribution FUSE page 2 2 AER 4 BRN Wit See Power See Ground WHT GRN ca gt Distribution Distribution page 2 1 page 2 8 S e Power WHT GRN 99 Distribution 5109 page 2 2 eee A LEFT POSITION COMBINATION LI RELAY GHT SWITCH BOX ES TBU p a t 1 LT BLU Part of Turn i Signal Switch 1 lt 1 1 Right Front 1
4. Test E SET DECEL Switch Continuity Check 1 Connect ohmmeter across WHT and WHT YEL circuits at C138 Check for continuity with the cruise switch ON and SET DECEL switch held on If yes service WHT YEL circuit for an open between C138 and C33 If no replace the cruise control switch Test F RESUME ACCEL Switch Continuity Check 1 Connect ohmmeter across WHT and WHT BLU circuits at C138 Check for continuity with the cruise switch ON and RESUME ACCEL switch held on If yes service WHT BLU circuit for an open between C138 and C33 If no replace the cruise control switch Test G Vacuum Valve Control Check 1 Disconnect C131 cruise control vent valve unit Turn ignition and cruise switches ON and engine stop switch in RUN and ground the GRN BLK wire at the cruise valve relay Release throttle and both brakes Check for battery voltage at BRN WHT circuit If yes go to step 4 If no go to step 2 2 Disconnect cruise valve relay connector Check for battery voltage at BRN RED circuits If yes go to step 3 if no service BRN RED circuit for an open between cruise valve relay and rear brake cruise cancel switch 3 Check for continuity at BRN WHT circuit between C131 cruise valve control unit and cruise valve relay If yes replace cruise valve relay If no service BRN WHT wire for an open 4 Check continuity to ground at C131 GRN circuit If yes go to step 5 If no service BRN WHT wire for an open 5
5. S106 Distribution WHT YEL 2 2 BLK TAIL SE models MAIN MM RELAY Sg ee BRN BLU BRN WHT GRN See Power Distribution BRN WHT See Power page 2 8 gt 5121 0 m Distribution 7 BRN WHT 1 GAN 5 1 100 BRN WHT BRN WHT Lock ON SWITCH bras 58 BRN J mE ete C10 BRN 1 BRN WHT BRN 5113 an Left Rear BRN WHT 208 BRN WHT 1 C84 Side q O Marker BRN Light BRN WHT c85 75 BRN T BRN e 5272 ow 8209 Left Accessory C188 Optional Light BRN BRN pt mmm UT LEFT 77 TRUNK LIGHT 1 SADDLE LET E ASSEMBLY BRAKE BAG ASSEMBLY 1 TAILLIGHT ASSEMBLY TAILLIGHT Optional TAIL BRAKE 4 TAIL BRAKE 3 GRN C188 Optional Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 9 1 0 MSV 8022 9803 LT GRN YEL LT GRN YEL Automatic Level Control 112 BRN e BRN BRN WHT 5210 BRNWHT Right Rear Side Marker BRN WHT Light BRN 2 Right 5211 EN Accessory BRN Light BRI TRUNK LIGHT RIGHT ASSEMBLY LIGHT TAILLIGHT 5 ti Wu PLATE Led G
6. 1 212112 4 ped Te RN RED C15 INDICATOR LAM L a Warning GRN ORN io c91 WHT RED Systems 8276 ped Engine See Reverse 2490 WHT 9 r2 Syste wat aeo 1 5185 Cu m page 3 11 WHT 4 Starting WHT GRN 1 LT GRN RED System Gee CIS Wi 1 GRNIORN C59 ai SIDE ques aim ae LT ues q a 9 GEAR SWITCH Bulb Test Power EP POSITION DOWN Jr Warning 1 SWITCH Gas ais System Systems l See Ground Distribution De EI u page 2 8 8100 Revised May 1998 1998 GL1500 1998 American Honda Motor Co Inc All Rights Reserved 7 0 MSV 8022 9803 ALL TIMES lt lt lt lt lt lt 5 S IGN START HEAD DIMMER CRUISE FUSE SWITCH IN HIGH BEAM FUSE 15A 15 4 ji WHT 21 de s187 1 WHT BLU BLU m 1 IGN HEADLIGHTS CRUISE HIGH 1 RELAY l aa GRN ENEIT BUYTTGRN See Engine Control Starting System page 3 0 BLU BLK Bank Angle Sensor 1 See Ground C57 9 BLKILTGRN 1 ens Starter Switch RIGHT OO GRN 1 SW
7. 1998 American Honda Motor Co Inc All Rights Reserved MSV 8022 9803 HOT ALL TIMES HOT IN ON ETM HOT IN ON ACC OR PARK T7117 3FUSE BLK RELAY HORN TURN ACC FUSE STOP RELAY 10A FUSE See Power 8105 Distribution p 21110 2 2 BLK WHT bik LT GRN BLK 1 LT GRN BLK HORN TURN l See Power cio Distribution ee page 2 0 GRN From 217 on See Ground page 9 8 Distribution 5109 x page 2 8 LT GRN BLK WHT GRN WHT GRN LT BLU WHT G100 C88 lt HAZARD 1 PUSE FLASHER E 1 RELAY POSITION 31522255 esses 1 4 GRN M 5161 WHT GRN WHT GRN GRN To 5215 on page 9 8 ME 1 8149 Lights TURN SIGNAL cori BLU BLK FLASHER OK here if C10 RELAY Brake Lights work if not see Ground See Ground sv C8 PNKWHT Distribution l Distribution BLU BLK BLK BLK C10 page 2 9 2 9 ovr GRN S218 C10 C181 C181 8 G100 GRY PNKWHT l E To S285 on page 9 9 8223 on page 9 9 SIGNAL SWITCH LEFT HAZARD COMBINATION SWITCH SWITCH 1 cont d 9 7 Turn Signal Hazard and Position Lights Circuit Schematic From FUSE RELAY BOX From
8. BRN RED BRN RED CRUISE VALVE RELAY GRN BLK BRN WHT BRN RED GRN BLK P Cancel Relay ae To C131 Input Ground oa 43 UNIT page 4 9 Solid state Do not check resistance ACTIVATOR From CRUISE VALVE RELAY on page 4 2 CRUISE CONTROL ACTUATOR BRN WHT CRUISE CONTROL VALVE UNIT VACUUM VALVE VACUUM SOURCE BRN BRN BLK C33 GRN BRN BRN BLK 085 Valve Vacuum Valve 1 CRUISE Switched To Switched To UNIT Ground Ground Solid state Do not check L 41 resistance 135 GRN See Ground S165 m mm Distribution 2 7 C33 L Cor ae 191 GRN GN Y See Ground See Ground Distribution Distribution page 2 8 page 2 7 2 100 2 100 Cruise Control How the Circuit Works The cruise control system uses the following components to control vehicle speed in the cruise control mode Clutch cruise cancel switch Cruise control actuator Cruise control switch Cruise control unit Cruise control valve unit Cruise valve relay Engine control module ECM Front brake light cruise cancel switch Gear position switch Instrument panel Rear brake cruise cancel switch Throttle cancel switch The cruise control unit rece
9. G100 G100 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 9 4 5 8022 9803 9 5 Turn Signal Hazard and Position Lights Circuit Schematic HOT IN ON HOT AT ALL TIMES TAIL METER POSITION FUSE 15A 1 WHT YEL 5106 on TAIL ee ee See Power Distribution bas GRN page 2 2 BRN BLU BRN WHT SE models SE models models 115 rrr 1 Distribution page 2 1 See Ground Distribution page 2 8 BRN WHT ANGLE SENSOR C94 BRN WHT Turn Switch TURN FUSE RELAY BOX ptt tT INSTRUMENT PANEL UNIT eed l Soia 1 state pe 4 WHT BLK C73 WHT BLK WHT BLK Spee 5238 Sensor Circuit page 7 4 WHT GRN at 2 0 C90 e Switch WHT BLK WHT GRN WHT BLK C99 TURN SIGNAL CANCEL CONTROL UNIT Solid state Do not check resistance PNK PNK LT GRN WHT 1 LT GRN WHT C181 PNK r Illumination SIGNAL POSITION LIGHT SWITCH 1 D a a a e a e a eG u o o a jjo e a a a e a ao a a a a e l a e LT BLU WHT GRN C192 1 tbs GRN ET BEUVET SENINUT See Ground Y Distribution 1 See Ground page 2 7 Distribution page 2 8 ToS2170n To S
10. 2 LT GRN BLK Automatic 5278 gt Control LT GRN BLK C66 LT GRN BLK T See Power S104 ramara Distribution page 2 0 LT GRN BLK 4 INSTRUMENT 4 4 PANEL 8 5 Volts Ignition UNIT le DD Input Input Solid Ground J State GRN BLK GRN BLK GRN BLK See Ground 5145 eae Distribution page 2 6 GRN BLK GRN BLK See Ground Distribution page 2 6 GRN BLK G100 Automatic Level Control Circuit Schematic korm on aco on park IN ON ACC korm on aco on park PARK ALL TIMES Rma c NNI EL m rust 8 RELAY AIR 1 Box FUSE PUMP 10A FUSE 10 LT GRN BLK i l WHT GRN LT o 1 l PIENE Distribution 5103 AIR page 2 0 LT GRN BLK GRN YEL A C73 BRN YEL con 235 Instrument ees cow Panel LCD 9 sere LT GRN Unt 6108 GRN YEL BRN YEL lt AIR PRESSURE PRESSURE CHECK CONTROL 1 SWITCH ASSEMBLY loo Se a a a ao o C103 BREUI GRN YEL vs ee INSTRUMENT 41 PANEL F Sheck Switch Relay Control UNIT
11. B B Solid Pte 152 U a db am a a f a a 2323 GRN RED BLK GRN LT BLU C91 GRN BLK GRN RED BLK GRN LT BLU ey C72 C16 GRN RED BLK GRN LT BLU See Ground Seay 5145 ramara Distribution GRN RED BLK GRN LT BLU page 2 6 GRN BLK C105 GRN RED C66 GRN BLK AIR PRESSURE SENSOR See Ground Distribution q page 2 6 8 G100 TA FUSE RELAY PARKING FUSE 1 7 10a 1 L aj ET SRNL LT GRN YEL See Power 142 6 Distribution BRN YEL 1 2 4 LT GRN YEL 72 BAN VEL INSTRUMENT C103 PANEL BRN YEL LT GRNVEL Sse An PRESSURE SWITCH CONTROL 1 LUNT SWITCH 1 ed ASSEMBLY E edil BRIEL b 4 INCREASE 1 RARUS DECREASE DECREASE SWITCH BRN WHT 1 l 5236 l BRN WHT 1 LT GRN BLK BRN WHT gpm C103 BRNIWET y LT GRN BLK With LT GRN BLK E Without BRN WHT 1 CB Radio C10 CB Radio C72 BRN YEL BRN WHT LT C182 PEERS C33 1 RADIO LT GRN BLK NOISE BRN YEL BRN WHT FILTER C106 C104 Er 82 BRAWHT LT GRN BLK LT GRN BLK BRN YEL LT GRN BLK C106 REAR RELIEF AIR PUMP AIR PUMP SUSPENSION SOLENOID ASSEMBLY ASSEMBLY SOLENOID VALVE VALVE em
12. ON and RESUME ACCEL switch pressed If not go to test F Zero volts with RESUME ACCEL switch released If not service cruise control switch SET DECEL Input WHT YEL Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON and SET DECEL switch pressed If not go to test E Zero volts with SET DECEL switch released If not service cruise control switch Vent Valve Control BRN Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON front brake released rear brake released throttle not in cruise cancel mode position and GRN BLK wire of cruise valve relay grounded Approx 105Q between BRN and ground with ignition OFF If not go to test H Cruise ON Input BLK YEL Battery voltage with ignition switch ON engine stop switch in RUN and cruise switch ON If not go to test A Ground GRN Continuity to ground If not service GRN circuit for an open Cruise Valve Relay Control GRN BLK Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON front brake released rear brake released and throttle not in cruise cancel mode position If not go to test C Brake Disable Input GRN YEL Battery voltage with ignition switch ON front or rear brake engaged If not service GRN YEL circuit for an open FEMALE HALF 4TH Gear Input RED WHT Battery vol
13. See Ground Distribution page 2 10 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 9 0 MSV 8022 9803 BRN WHT ETM Left Rear Light Assembly BRN WHT BRN WHT S208 BRN WHT S210 Right Rear Light Assembly C10 BRN WHT C86 BRN WHT BRN 5265 5264 0 BRN WHT BRN WHT GRN 5267 BRN WHT C82 sw BRN S269 5268 mmr BRN WHT BRN WHT LEFT RIGHT SIDE TRUNK SIDE TRUNK MARKER MARKER LIGHT LIGHT GRN mm 5271 5270 5266 1 GRN GRN C86 c82 GRN GRN GRN S159 m mm GRN GRN See Ground 58 Distribution 161 page 2 9 GRN GRN S149 od GRN C10 GRN r m 1c192 a d GRN See Ground Distribution page 2 9 100 9 1 Marker Lights Saddlebags Circuit Schematic HOT AT ALL TIMES HOT IN PARK 7 RELAY PARKING FUSE 10 J BLK 5106 m See Power Distribution T page 2 2 LTGRN VEL LTGRN gt Automatic 142 Level Control S C10 cows SE models See Power Distribution pee Ground IN LINE page 2 1 page 2 8 DIODE BRN WHT C58 BRN WHT pm 4 IGNITION SWITCH G100 Lock ON 1 946 SS BRN 58 BRN X C10 BRN BAN 112 BRN 5113
14. Turn Signal 4 POSITION Position Light Park Bulb ORN WHT ORN WHT Left Front Turn Signal Position Light Park Bulb 5116 73 Turn Signal BLU BLK Flasher BRN WHT ORN WHT LT BLU WHT Relay C96 mcm LEFT RIGHT CORNERING LIGHT RELAY RELAY M eo i C96 RED YEL RED BLU BLU BLK c95 RED YEL GRN RED BLU LEFT RIGHT BLU BLK CORNERING CORNERING LIGHT LIGHT Grounded when Turn Signal Switch 1 1 C192 fuum 500 1 22 2 4 CANCEL i A 5 i CONTROL UNIT see Ground See Ground Solid state Distribution Distribution Do not check 2 7 2 9 2 7 resistance 2 G100 8 G100 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved MSV 8022 9803 9 3 Handlebar Switch Illumination SE Only Circuit Schematic sey RELAY BLK BOX TAIL METER POSITION FUSE WHT YEL 15A TAIL See Power Distribution page 2 2 See Power See Ground Distribution Distribution page 2 1 BRN WHT 1 an C57 LEFT CB RADIO RIGHT COMBINATION SWITCH COMBINATION SWITCH ASSEMBLY SWITCH Position Lights cB cruise TURN CONTROL HAZARD ILLUMINA SWITCH ILLUMINATION TION ILLUMINA 1 TION 4 4 See Ground See Ground See Ground Distribution Distribution Distribution page 2 7 i page 2 8 page 2 7
15. C106 GRN GRN Tun 182 5164 r 7 RADIO C106 GRN NOISE C104 FILTER eni L J C182 GRN See Ground Distribution page 2 7 GRN o ee a e d ETM HOT IN PARK GRN GRN Y GHN Y C10 1 See Ground I Distribution page 2 10 2 G100 Low Fuel and Oil Pressure Warning System Circuit Schematic ot sey RELAY TAIL METER POSITION BOX FUSE BLK 15 WHT YEL MAIN See Power ng OES TI RELAY Distribution 2 2 U a a f a BRN BLU GRN BRN WHT SE models 8115 9 1 See Ground Distribution See Power Distribution page 2 8 page 2 1 c73 2 G100 BRN WHT See Instrument 123 Panel Illumination BRN WHT Br Fairing Marker T C66 Lights optional BLK BRN 5131 mm mm gt See Indicators BLK BRN age 7 0 BLK BRN 132 6 BLK BRN BLK BRN INSTRUMENT LOW Ca EOD OIL PANEL FUEL Ground For UNIT PRESSURE INDICATOR Bulb Check Solid state INDICATOR l L qp euo ce emm em ame n 43 WHT GRN REVERSE 16 WHT GRN i WHT GRN BLU RED 1 T CONTROL 5249 Input Solid state 1
16. With C131 disconnected check continuity between BRN WHT and BRN BLK circuits at cruise control valve side of C131 If yes service BRN BLK circuit for an open between C33 and C131 If no replace cruise control valve unit Test H Vent Valve Continuity Check 1 Disconnect C131 cruise control valve unit and check continuity between BRN WHT and BRN circuits at cruise control valve side of C131 If yes service BRN circuit for an open between C33 and C131 If no replace cruise control valve unit 4 10 Test I Cruise SET Indicator Control Test 1 Put engine stop switch in RUN and turn ignition ON Check that cruise SET indicator lights briefly If yes service BLUAWHT circuit between instrument panel and cruise control unit If no go to step 2 2 Disconnect C66 instrument panel Turn ignition ON and put engine stop switch in RUN Check for battery voltage at WHT circuit If yes go to step 3 If no service WHT circuit for an open 3 Connect ohmmeter between WHT and BLUAWHT circuits at instrument panel half of C66 Check for continuity If yes check BLU WHT circuit for an open between C66 and C33 If no check bulb WHT circuit and BLU WHT circuit for an open Replace repair as necessary Test J Cruise ON Indicator Control Test 1 Put engine stop switch in RUN and tum ignition ON Check that cruise indicator lights briefly If yes service BLU ORN circuit between instrument panel and cruise control unit
17. YEL RED circuit for a short to ground If no service radio cassette player for a short to ground With ohmmeter connected from previous step check the male half of C33 for a short to ground If yes service the YEL RED circuit for a short to ground If no replace the cruise control unit Test L Cruise Control Actuator Vacuum Input Test 1 Connect vacuum gauge at source to cruise control valve unit Start engine and check for vacuum if yes go to step 2 If no service vacuum line system for a blockage or leak Stop engine and connect vacuum pump to cruise control actuator Operate vacuum pump and check that the throttle turns holds and releases as vacuum is applied maintained and released If yes go to step 3 If no check vacuum line to cruise control actuator for blockage or leaks Replace repair as necessary Disconnect C131 and check for continuity to ground at GRN circuit If yes replace cruise control valve unit If no service GRN circuit for an open Test M Cruise Control Actuator Vent Input Test 1 Connect vacuum pump to vacuum source line of cruise control valve unit Jumper BRN circuit to ground Jumper GHN circuit to ground Jumper BRN BLK circuit to ground Jumper BRN WHT circuit to battery voltage Operate vacuum pump and allow time for cruise control actuator to pull throttle cable Disconnect jumper at BRN BLK circuit Cable actuator should hold throttle cable Disconnect jumper at BRN circuit
18. actuator pulls on the throttle linkage to increase vehicle speed When the vehicle set speed is reached the unit opens the vacuum valve control line and allows vacuum in the cruise control valve unit to hold the throttle linkage to maintain vehicle speed If the unit detects vehicle speed increasing past the set speed or if the SET DECEL switch is held the unit removes ground from the vent valve control circuit Vacuum in the cruise control actuator is decreased the throttle cable tension is relaxed and the engine speed slows The cruise mode is disengaged by applying either brake releasing the clutch or moving the throttle to OFF When either brake is applied or if the throttle is moved to OFF battery voltage is removed from the cancel input This forces the unit to drop out of the cruise mode There is also a redundant brake disable input to the cruise control unit When the brake lights come on battery voltage is applied to the cruise module to disengage the cruise control Troubleshooting SYMPTOM Cruise ON indicator does not light briefly BLU ORN circuit open when stop engine switch is first turned to RUN but lights with cruise on e Faulty instrument panel Cruise SET indicator does not light briefly e BLU WHT circuit open when stop engine switch is first turned to RUN but lights with cruise set Any other cruise related symptom Perform Isolation Procedure e Faulty instrument panel co
19. rca rara See Indicators 1 7 0 See Indicators 133 l 32 lt a mmu page 7 0 BLK BRN BLK BRN L C10 BLK BRN arena e BLK BRN YEL BLU BLK BRN 139 BLK BRN ENGINE COOLANT TACHOMETER TEMPERATURE SOLID ECT GAUGE 2048 5168 GAN BLU GRN BLK EST EU C108 a ffo a a a lt lt lt lt lt lt a 1 GRN BLK YEL WHT S145 ma c66 GRN BLU GRN BLK YEUWHT See Ground Distribution TREAT ces Cloc YELINHT page 2 10 Speed C112 GRN BLU GRN BLK Pulser 55 veuwnr GRN FUEL C66 LEVEL C22 GRN BLK SENDER GAN SRN BH 112 tos 00 ENGINE 5143 0 mam me See Ground COOLANT R 66 76 Distribution TEMPERATURE See Ground Ohms page 2 10 ECT Distribution page 2 6 0 1 GAUGE hm SENDER 48 G100 G103 8 G100 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 7 2 MSV 8022 9803 HOT IN ON BLK L SE models GRN See Ground Distribution page 2 8 GRN 48 G100 ERN WHT Revised May 1998 1998 GL1500 ETM 1998 Amer
20. 2150n LL _ 9 8 9 8 ea G100 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved MSV 8022 9803 Turn Signal Hazard and Position Lights Circuit Schematic AT ALL TIMES BLK TAIL o RELAY L 5 FUSE RELAY m uu BOX POSITION FUSE 15 INSTRUMENT r A4 teo PANEL lI s Solid lI Output state L a f ee WHT BLK 73 WHT BLK WHT BLK See Speed 5238 6 Sensor Circuit page 7 4 WHT BLK WHT GRN S1 Lo om C90 WHT BLK WHT GRN e Switch lt C99 TURN SIGNAL CANCEL CONTROL UNIT Solid state Do not check resistance C99 BLU PNK LT GRN WHT GRN BLK 4151 C90 PNK LT GRN WHT PNK See Power Distribution GRN page 2 2 4 4 41 BRN WHT 5115 rmm See Ground 1 Distribution 2 8 1 8100 See Power Distribution page 2 1 BRN WHT ANGLE SENSOR c94 BRN WHT m ee Turn Switch Illumination POSITION LIGHT SWITCH LEFT LT BLU WHT 1 ORN WHT C94 C93 LT BLU WHT ORN WHT 8217 8215 9 8 9 8 C181 SIGNAL LIGHTS CANCEL SWITCH See Ground Distribution page 2 7 Revised May 1998 1998 GL1500 ETM
21. 5 Do not check WHT GRN C66 942 4 resistance WHT BLU 1 BLU RED C55 C32 BLU RED WHT BLU S250 BLU RED C22 BLU RED FUEL y OIL PRESSURE RESERVE SWITCH SENDER Open above 1 3 psi tC Ee 0 1 0 2 kg em2 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 6 0 MSV 8022 9803 6 1 Indicators Circuit Schematic HOT AT ALL TIMES TAIL METER POSITION 15A WHT YEL BRN WHT MAIN ELAY 1 BRN BLU BRN WHT See Power 5115 Distribution GRN SE models page 2 2 M See Power Distribution c92 page 2 1 See Ground M REVERSE Distribution 1 BRN WHT See Power page 2 8 5121 aaa Distribution page 2 1 BRN WHT Instrument Panel 7 73 9100 es Illumination Gauges BRN WHT BLKWHT WHT BLU N BRN WHT c92 5123 WHT BLU BRN WHT URP BLK BRN S303 ama Headlights C66 Reverse BLK WHT System BUK BEN Fairing Marker C73 BEKIBRN 5131 Lights optional INSTRUMENT BLK BRN BLK BRN BLK WHT PANEL umm Fuel and 1 BLK BRI Temperature 5132 rarum Gauges BLK BRN S133 BLER BPN oa 1 P REVERSE OIL PRESSURE INDICATOR NEUTRAL SIDE STAND BH INDICATOR INDICATOR Gn N
22. C93 on page 9 7 on page 9 6 From C94 on page 9 6 LT BLU WHT LT BLU To FUSE LT BLU WHT WHT RELAY BOX 217 on page 9 7 LT BLUWHT 55 Ri ight 215 Cornering ORN WHT ORN WHT Light Relay Light Relay LT BLU WHT 219 ORN ASAE VY LT BLU SEA ORN ORN LT BLU WHT C98 C67 ORN WHT ORN LT BLU WHT LEFT FRONT RIGHT FRONT TURN SIGNAL TURN SIGNAL POSITION POSITION LIGHT ORN LIGHT POSITION TURN TURN POSITION r INSTRUMENT anii RIGHT PANEL 1 TURN GRN SIGNAL C98 67 Left Fairing Right Fairing Marker Light Marker Light C66 GRN GRN GRN GRN GRN GRN 177 GRN GRN 7 SEE b EE D Ai we em 5176 172 5171 GRN 6471 55 GRN See Ground Distribution pages 2 10 GRN G100 93 93 on pages 9 7 on pages 9 7 ORN LT BLU C55 om C73 ORN 5285 LT BLU LT BLU LT BLU mue e 5223 C76 TRUNK BLK LIGHT FE aSSemeLy LEFT REAR RIGHT REAR TURN TUR SIGNAL SIGNAL LIGHT LIGHT crn 1 SPS 75 C76 GRN GRN S158 459 cen i ED p GRN See Ground Distribution pages 2 9 GRN 100 Parking and License Plate Lights Circuit Schematic a nT ee re ae 4 FUSE RELAY orana BLK 3 ee
23. Cable actuator should release throttle If yes check BRN circuit for high resistance between C33 and C131 If no replace cruise control valve unit 4 13 Circuit Schematic HOT AT ALL TIMES 25 4 FUSE RELAY HORN TURN See Power Distribution am 5105 STOP RELAY page 2 2 15 BLK See Ground Distribution See Power Distribution page 2 8 page 2 2 GRN WHT GRN WHT GRN Turn Signal Cancel Control Unit l l 1 LEFT HORN OMBINATION SWITCH SWITCH 201 129 1 RIGHT HORN C128 GRN C191 4 4 C191 See Ground Distribution page 2 8 Distribution page 2 7 5 0 Clock Circuit Schematic 1 FUSE RELAY BACK UP ACC BOX FUSE FUSE 5A 10A 1 4 RED YEL RED YEL c89 GRN GRN BLK T GRN BLK S101 maar f Trunk Light CURN See Power RED YEL LT GRN BLK Distribution RED YEL 5140 mr mip page 2 0 5102 e LT GRN BLK LT GRN BLK e 5103 C306 ili el z LT GRN LT GRN BLK LT GRN BLK HOUR YEL BLK 9 MINUTE SE 18 1 Se 7 SELECTOR Memory ignition Memory Ignition SWITCH V input Input 5 Volt Output 1 DECK Liu TRANSCEIVER
24. Cruise Control Circuit Schematic HOT AT ALL TIMES lt lt lt lt lt lt FUSE RELAY BLK Box HORN TURN See Power 1 STOP FUSE STOP RELAY 5106 mmm mm Distribution FUSE page22 15 L a lt f a a a a a 1 15 BLE HORN TURN 5109 0 GAN WHT GRN Power Ea UI Distribution 5107 gt WHT GRN 5108 WHT WHT WHT ol GRN GRN 57 C81 1 See Ground WHT WHT Distribution GRN C320 GRN 1 2 8 ew LIGHT LIGHT 2 0100 SWITCH SWITCH ri C321 GRN YEL GRN YEL C57 C81 GRN YEL GRN YEL S243 e GRN ORN RELAY stop 1 LIGHTS F TTA ENGINE t RELAY Crankshaft CONTROL EE ee eee Speed MODULE output ECM See Ground 2 Solid state Do not Distribution C49 check resistance GRN RED page 2 8 2 G100 GRN RED S241 Brake Lights GRN YEL GRN YEL CRUISE CONTROL UNIT Solid state Do not check resistance Disable Input WHT BLK RPM Input BLK LT GRN 4 FUSE ur eu 03 RELAY BLK LT GRN IGN START 1 BLKILT GRN Sy
25. EN pum 5157 See Ground GRN Se Distribution 656 page 2 9 GRN pum 5158 GRN 159 e GRN 1 5161 GRN See Ground 74711 C192 Distribution page 2 9 GRN See Ground Distribution page 2 7 GRN G100 LT GRN YEL LT GRN YEL ETM Oy 773 FUSE 1 RELAY PARKING FUSE 1 10A L Sc 5142 IN LINE DIODE B RIGHT SADDLEBAG r PIGH LIGHT TAILLIGHT ASSEMBLY TAIL BRAKE T 9 11 Brake Lights Circuit Schematic HOT AT ALL TIMES HOT IN ON Cr ae het ett et eRe ETTA FUSE RELAY po pd See Power BLK 1 BOX ELAY FUSE Distribution eem 5105 15A page 2 2 WHT RED WHT GRN m WHT GRN 8109 See Ground Distribution page 2 8 WHT GRN See Power Distribution 8 Gi00 page 2 2 WHT GRN WHT GRN WHT GRN WHT GRN WHT GRN poo e 2 tt C320 C57 S108 C81 FRONT BRAKE REAR BRAKE LIGHT SWITCH LIGHT C321 SWITCH GRN YEL See Ground GRN YEL Cruise n Y C87 Control GRN RED Distribution GRN ORN Y C81 GRN YEL C10 page 2 8 GRN RED I 5243 GRN YEL 5305 M 6100 5242 GRN YEL e 1 V GRN YEL 6 17 GRN YEL 9 12 C84 GRN YEL ewe Spoiler Brake Taillight GRN YEL GRN YEL ow GRN YE
26. IN See Power RELA Distribution page 2 2 BRN RED BRN WHT l O GRN SE models C57 See Ground 5115 Distribution BRN RED page 2 8 BRN WHT V RIGHT COMBINATION GRN pee STARTER 92 9 0 REVERSE T 2100 ire Push f SWITCH we REVERSE EAT LEVER SWITCH 212 ee 2 BLU WHT 57 C92 BRN WHT BRN WHT Fr 6 5232 RIGHT 1 Fairing HEADLIGHT C312 Marker POSITION WHT BLU Lights LIGHT BLU WHT Reverse P optional ti REVERSE Spem D8 DIODE ASSEMBLY E BLU WHT C32 BLU WHT GRN 5205 Indicator COMBINATION pimmer SWITCH SWITCH To FUSE RELAY BOX on page 8 1 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 8 0 MSV 8022 9803 From LEFT COMBINATION SWITCH on page 8 0 HOT AT ALL TIMES 9 HEAD FUSE 15A WHT BLU A uh From LEFT COMBINATION SWITCH on page 8 0 TTITTVEIAMFUSE RELAY l LIGHTS 1 HIGH l l GRN WHT BI BLU BLK GRN See Ground Distribution WN Distribution page 2 8 1 1 page 2 8 0100 L WHT BLK BLU BLK BLU BLK C24 C66 BRN WHT WHT BLK WHT BLK BLU BLK 202 BLU INSTRUMENT B
27. ITCH G100 BLU BLK C24 See Cruise Control 4 1 Headlights C55 WHT I BLU BLK C66 Wie erm imi 5240 wal WHT BLU 1 perem CRUISE ON PANEL for in n HIGH BE SERUISE Bulb ma INDICATOR INDICATOR INDICATOR Lest ySolid LcD Unit zo I state Illumination Lights z tC aj o qp ao am ao ano amo amo op ae ao ao ao e a GRN BLUWHT BLU WHT MORN ORN 688 C16 BLU BLU WHT ORN GRN 239 5244 BLU WHT BLU ORN See Ground Distribution 2 10 BLU ORN GER 8 Gi00 Cruise Control Instrument Panel Gauges Illumination Lights Circuit Schematic ei iii 4 FUSE RELAY 8 BOX TAIL METER 1 5 1 POSITION J eONTHOL BLK See Power 1 FUSE Switched MODULE S106 Distribution Output ECM Sik page 2 2 WHT YEL Solid state 4 1 1 Do not check d C49 1 1 YEUBLU 5115 6 See Ground Distribution SE models See P Power pag Distribution Instrument 72 2 1 Panel 2 G100 Illumination C73 BRNAWHT YELJIGRN Fairing Marker Lights optional INSTRUMENT C66 PANEL E BLK BRN 5131
28. If no go to step 2 2 Disconnect C66 instrument panel Turn ignition ON and engine stop switch in RUN Check for battery voltage at WHT circuit If yes go to step If no service WHT circuit for an open 3 Connect ohmmeter between WHT and BLU ORN circuits at instrument pane half C66 Check for continuity If yes check BLU ORN circuit for an open between C66 and C33 if no check bulb WHT circuit and BLU ORN circuit for an open Replace repair as necessary Test K Speed Signal Input Test 1 Disconnect C73 With ignition switch ON check for about 5 to 10 volts at WHT BLK circuit C73 FEMALE HALF WHT BLK If yes check WHT BLK and YEL RED circuit for an open or WHT BLK wire between C73 amp instrument panel for an open If no go to step 2 cont d 4 11 Cruise Control 4 12 Troubleshooting Test Speed Signal Input Test cont d 2 ignition OFF and connect ohmmeter to YEL RED circuit at the female half of C33 Check for a short to ground if yes go to next step If no go to step 5 With ohmmeter connected from previous step disconnect C99 turn signal cancel control unit and check again for the short to ground If yes go to step 4 If no service turn signal cancel control unit for a short to ground With ohmmeter connected from previous step disconnect radio cassette player connector C1 and check again for the short to ground If yes service the WHT BLK and
29. L C78 LEFT TRUNK RIGHT SADDLE Le LIGHT SADDLEBAG BRAKE BAG ED iets AS semety _ luenr LIGHT 3 tien 3 ASSEMBLY TAILLIGHT ED ie TAILLiGHT DUE TAIL BRAKE 3 I3 RN GRN GAN See Ground 5157 4 Distribution penne 9 5160 1 GRN page 2 9 GER See Ground C76 Distribution C75 GRN T page 2 9 GRN GRN GRN 5 8159 GRN 5161 Ia See Ground GRN Distribution page 2 9 2 G100 GRN Trunk Light Circuit Schematic ETM HOT AT ALL TIMES arene 3 RELAY BACK FUSE 5A RED YEL RED YEL 102 5101 e RED YEL C89 RED YEL RED YEL CB Radio Instrument Transceiver Cassette Panel GRN TRINK Optional Deck LCD Unit Optional Int GRN BLK GRN BLK VANITY MIRROR LIGHT SWITCH Optional Int TRUNK LIGHT SWITCH Optional Int Closed when trunk lid is GRN BLK opened c89 GRN 1 4 See Ground Distribution page 2 8 G100 9 13 Accessory Lights Circuit Schematic HOT AT ALL TIMES IN ON menm FUSE RELAY POSITION FUSE 15A 2 See Power 5106 Distribution page 2 2 SE models BRN BLU BRN WHT See Power Distribution mw 5115 page 2 1 BRNIWHT Spoiler Br
30. LU BLK PANEL WHT BLK HIGH ier HIGH HIGH INDICATOR ES LCD unit HEADLIGHT 6 3 Illumination POSITION uane m 1 GRN GRN See Ground GRN Distribution C66 5175 page 2 10 GRN 1 C24 GRN GRN GRN Automatic GRN GRN 172 Ee 6 Dt Level Control 5166 GRN See Ground 5177 Ommume Distribution page 2 10 GRN C55 See Ground Distribution page 2 10 2 G100 Marker Lights Fairing and Trunk Optional Circuit Schematic HOT AT ALL TIMES lt BLK BOX TAIL METER es cu POSITION 1 FUSE 15 5106 WHT YEL BLK 1 m ou G BLK TAIL MAIN RELAY 1 4 4 BRN BLU BRN WHT SE models See Power sm 5115 e SEND Distribution See Gi 2 2 26 M NS pag Distribution BRN See Power Distribution page 2 8 wit p page 2 1 S121 2 G100 BRN WHT C73 BRN WHT BRN WHT 123 BRN WHT ae BRN WHT BRN WHT S213 BRN WHT Headlights 0 5212 BRN WHT 1 C97 BRN WHT BRN WHT LEFT FAIRING RIGHT FAIRING MARKER LIGHT MARKER LIGHT GRN GRN C97 c68 GRN 8028 Right Front Turn tafi Front GAN s Signal Position Light Turn Signal 176 GRN Position Lights oon Instrument Panel 5172 mem Illumination GRN GRN GRN
31. RN BRAKE BRAKE LIGHT LIGHT SWITCH C57 81 ze GRN YEL 1 d E MAIN ELA 4 See Ground GRN YEL BRN WHT GRN See Ground istributi Cruise Distribution eee a imm Control 5115 nra 2 8 2 8 GRN RED 1 BRN WHT 1 2 G100 T C10 I G100 GnNnED e Brake BRN WHT T zB See Power 5305 rama Lights S208 6 ramum sisse ages 2 BRNWHT 6399 and 2 5 Brake Switch Taillight Input 6 12 Volt Input PARET Switched Output CONTROL MODULE SPOILER BRAKE TAILLIGHT NOTE 6 volts Taillight 12 volts Brake Light GRN 4 C331 C330 See Ground Distribution page 2 9 8 100 GRN Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved MSV 8022 9803 9 1 5
32. ake BERVNHT Taillight Left Side 8 Trunk BRN WHT BRN WHT BRN WHT Right Side Marker 8208 Trunk Light 1 Marker 76 Light Light S209 211 V ma Light Taillight TRUNK 75 C95 Left ar c Right Brake LEFT FRONT RIGHT FRONT LEFT REAR RIGHT REAR pu ACCESSORY ACCESSORY i ACCESSORY 25 ACCESSORY ASSEMBLY LIGHT LIGHT SE models only SE models only LIGHT LIGHT 4 2 GRN Brake GRN GRN Right Brake Left Brake GRN 5 Light 5157 Light UM I 8160 T Taillight 76 Ll eT GEN Y GRN Right Rear Turn Signal sil Light Brake Light 1 and Taillights GRN See Ground See Ground Distribution M page 2 9 and 2 8 1 C192 ii 8 Gioo Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 9 1 4 MSV 8022 9803 Spoiler Brake Taillight SE Only Circuit Schematic HOT AT ALL TIMES HOT IN ON Oe FSE RELAY Q HORN TURN STOP TAIL METER BLK RELAY FUSE POSITION 1 15 FUSE BLK WHT 15A See Power Distribution page 2 2 wm bo LIBI See Power See Ground Distribution N Distribution page 2 2 page 2 8 1 WHT GRN N WHT GRN 2 G100 57 8108 au WHT G
33. ete CRUISE FUSE 5181 meara isa L FIIO AG ET BLK LT GRN WHT C57 BLK LTGRN RIGHT Starter ret FUSE Reverse POR ANON RELAY Switch IGN BOX ENGINE STOP cruise SWITCH RELAY 2 WHT RED WHT T C33 T C32 BLK LT GRN 57 WHT RED WHT P PES C11 sw WHT RED WHT 5188 ANGLE WHT BLK WHT SENSOR BLK WHT Engine 5195 mm uem Control C11 System GRN To RIGHT COMBINATION WHT SWITCH on page 4 2 C55 1 See Ground wal Distribution 1 page 2 7 T cee WHT 8100 5240 INSTRUMENT 5 1 PANEL Oz Speed Output Bulb Bulb UNIT ONE INDICATOR Peers 1106 IE INDICATOR 4 state h divisi pam WHT BLK BLU WHT C146 BLU ORN j EET nl 5244 WHT BLK BLU WHT mmm Q 5239 BLU ORN 5238 BLU WHT WHIEBKN o BLU WHT suom C90 C55 C72 WHT BLK WHT BLK YEL RED BLU WHT mS C33 yeurep BLUWHT BLU ORN M C135 Turn Signals Radio Cassette Ti CRUISE Wheel SET PN CONTROL UNIT Speed Indicator Indicator Solid input Control Solid state SOU not check cont d resistance Cruise Control Circuit Schematic contd
34. ican Honda Motor Co Inc All Rights Reserved MSV 8022 9803 FUSE Reta BOX WHT YEL ete TT TAIL MAIN RELAY i E 2 BRN BLU BRN WHT 5115 BRN WHT See Power Distribution page 2 1 BRN WHT 5121 Gauges C73 2 BLK BRN 123 BRN WHT Lap mp C66 5228 e Fairing Marker Lights optional BRN WHT BRN WHT 2 5 om 71 INSTRUMENT ILLUMINATION PANEL O l uuu du qe au qui GRN See Ground 5293 m umm Distribution 291 GRN page 2 10 e GRN 1 c66 GRN See Ground Distribution page 2 10 GRN 2 100 Speed Sensor Circuit Wheel Speed Circuit Schematic HOT IN PARK ACC OR ON FUSE 1 RELAY FUSE 15 l Ji See Power Distribution page 2 0 e 0 LT GRN BLK C107 LT GRN BLK LTGRNIBLK ff p INSTRUMENT PANEL Ignition Acc SPEED SENSOR Speed Output Ground Solid state l GRN BLK 107 WHT BLU C16 WHT BLU 3 Ignition Speed LCD UNIT Input Solid 1 Wheel state Speed pers Ground Output 2 Screed Se SD l eee ghp oe os
35. ives several signals to operate It must receive a battery voltage signal from the engine stop switch and the cruise ON switch at its ignition input There must be a battery voltage signal at the cancel input that receives voltage from the front brake light cruise cancel switch throttle cancel Switch and rear brake cruise cancel switch These switches complete the current path when both brakes are released and the throttle is not OFF pushed clockwise The cruise control unit has a 4th gear input and an overdrive OD input The module must recognize a ground signal at its 4th gear or overdrive OD inputs to enter the cruise mode When the cruise ON switch is engaged the cruise control unit grounds the cruise ON indicator control line and the cruise ON indicator lights The system is activated when the unit receives a momentary voltage signal at its SET DECEL input The unit grounds the cruise SET indicator control line It then looks at the speed signal outputs from the instrument panel and the engine speed from the ECM It uses the ECM speed signal to control vehicle speed and the instrument panel speed signal to determine if the vehicle is above 30 mph and below 80 mph 4 4 The cruise control unit maintains vehicle speed by energizing the cruise valve relay and grounding and Opening its vacuum vent and valve control lines Engine vacuum is then channeled through the cruise control valve unit to the cruise control actuator The
36. nd observe if throttle turns and holds If not go to test L C33 FEMALE HALF With ignition switch ON cruise switch ON engine stop switch in RUN and ground GRN BLK wire of the cruise valve relay remove jumper at BRN circuit while observing throttle Cruise control actuator releases throttle If not go to test M Note If all isolation checks are correct check wires between cruise control unit and male half of C33 for opens or shorts to ground If all circuits are OK replace cruise control unit and road test If not OK speed signal from ECM may be at fault Test A Cruise Unit Power 1 Test Cruise Unit Cancel Input Test 1 Test C Cruise Relay Valve Input Test 1 Test D Clutch Cancel Input Test 1 ETM Turn ignition switch ON and engine stop switch in RUN Check for battery voltage at C138 WHT circuit If yes go to step 2 If no service WHT circuit for an open With ignition switch OFF connect an ohmmeter across BLK YEL and WHT circuits at C138 Check for continuity with cruise switch ON If yes service BLK YEL circuit for an open between C33 and right combination switch If no replace right combination switch Disconnect C132 throttle cancel switch Turn ignition and cruise switches ON and the engine stop switch to RUN With front brake released check for battery voltage at GRN WHT circuit If yes go to step 2 If no check front brake light crui
37. nt d Cruise Control Troubleshooting cont d ISOLATION PROCEDURE Note Disconnect connector C33 Perform all checks in order If a result is incorrect go to test referenced If the result is correct perform the next check Throttle is at the cruise cancel mode position when the throttle is turned clockwise past the rest position Clutch Cruise Cancel Input GRN BLU Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON and clutch lever pulled in If not go to test D Zero volts with clutch lever released If not service clutch cruise cancel switch C33 FEMALE HALF Vacuum Valve Control BRN BLK Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON front brake released rear brake released and throttle not in cruise cancel mode position and GRN BLK wire of cruise valve relay grounded Approximately 87Q between BRN BLK and ground with ignition OFF If not go to test G Cruise Cancel Input BRN RED Battery voltage with ignition switch ON engine stop switch in RUN cruise switch ON front brake released rear brake released and throttle not in cruise cancel mode position If not go to test B Zero volts with the throttle in cruise cancel mode position or either brake operated If not service suspect switch RESUME ACCEL Input WHT BLU Battery voltage with ignition switch ON engine stop switch in RUN cruise switch
38. s TIEREN T Tz 34 ust TRES HEAD RELAY RVS START TAIL METER BOX FUSE 5A BRN RED BRN WHT C57 POSITION FUSE Face 5 15 lt pur WHT YEL G CS GRN ERRANT SE models TAIL MAIN See Power RELAY Distribution 1 2 2 1 1 See Ground e 5115 Distribution BRN RED page 2 8 BRN WHT COMBINATION GAN STARTER SWITCH 2 G100 page 9 0 PUSH SWITCH REVERSE BRNIWHT l a l LEVER e 1 SWITCH 212 LIIDL 32J3 BLU WHT Y C92 BRN WHT BRN WHT pee 5232 RIGHT ud Fairing HEADLIGHT C312 Marker POSITION WHT BLU Lights LIGHT BLU WHT Reverse System REVERSE 08 DIODE ASSEMBLY J BLU WHT C32 BLU WHT Indicators ee Neutral Indicator m C94 aum LEFT COMBINATION DIMMER Swiren SWITCH To FUSE RELAY BOX on page 8 1 Revised May 1998 1998 GL1500 ETM 1998 American Honda Motor Co Inc All Rights Reserved 8 0 MSV 8022 9803 Headlights Circuit Schematic HOT IN ON HOT AT ALL TIMES aaa aa m erp aS TEE EE Se TSE ak HEAD RELAY RVS START TAIL METER BOX FUSE FUSE EOSITION 5106 FUSE BLK BLK bee Sees ny WHTMEL 1 MA
39. se cancel switch BLK BLU and GRN WHT circuits for open between C132 and C138 as necessary Reconnect C132 and disconnect C133 rear cruise brake cancel switch Turn ignition and cruise switches and the engine stop switch to RUN With front brake and throttle released check for battery voltage at GRN WHT circuit if yes check rear brake cruise cancel switch and BRN RED circuit for an open between C133 and cruise control unit Replace repair as necessary If no check throttle cancel switch and GRN WHT circuit for an open between throttle cancel switch and rear brake cruise cancel switch Replace repair as necessary Disconnect cruise valve relay connector Turn the ignition and cruise switches ON and the engine stop switch to RUN Release front and rear brakes and release throttle Check for battery voltage at BRN RED coil circuit If yes check relay for an open coil and GRN BLK circuit for an open between cruise valve relay and C33 Replace repair as necessary If no service BRN RED circuit for an open Disconnect C323 clutch cruise cancel switch Turn the ignition and cruise switches ON and the engine stop switch to RUN Check for battery voltage at BLK YEL circuit If yes check clutch cruise cancel switch and GRN BLU circuit for an open between C323 and C33 Replace repair as necessary If no service BLK YEL circuit for an open cont d 4 9 Cruise Control Troubleshooting cont d A A
40. tage with ignition switch ON Engine RPM Input WHT BLK engine stop switch in RUN and gear shift Continuity to ECM OPen to ground out of 4th gear If not check WHT BLK circuit for an open If not check RED WHT circuit and gear or short to ground between ECM and position switch for an open or short to C135 ground Overdrive OD Input GRN ORN Battery voltage with ignition switch ON Cruise ON Indicator Control Output and gear shift out of overdrive BLU ORN Zero volts in overdrive Battery voltage with ignition switch ON If not check GRN ORN circuit and gear and engine stop switch in RUN position switch for an open or short to If not go to test J ground Cruise SET Indicator Control Output BLU WHT Battery voltage with ignition switch ON and engine stop switch in RUN If not go to test 1 Wheel Speed Input YEL RED Signal varies from 4 volts or greater to 0 volts as front wheel is turned slowly with ignition switched ON If not go to test K cont d 4 7 Cruise Control Troubleshooting cont d ISOLATION PROCEDURE cont d C33 FEMALE HALF Start engine and allow to run for 30 seconds to allow vacuum to build in accumulator Stop engine put ignition switch ON engine stop switch in RUN and ground GRN BLK wire of the cruise F x valve relay Jumper BRN circuit to ground Put cruise switch ON Jumper BRN BLK circuit to ground for about 3 seconds then disconnect a
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