occupant detection system (diagnostics)
Contents
1. A ojm eo a D zd TO 1 19 8 7 6 5 4 3 2 1 1 2 3 4 5 6 1 21 3 4 5 6 7 8 9 7 8 9 10 11 12 13 14 10 11 12 13 14 15 16 17 18 19 20 AB 00930 OD diag 7 S e book 8000 0000000000 000 0000000 T A General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS e TEST HARNESS Y ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 28299AG040 TEST HARNESS Y Used for diagnosing the seat belt buckle switch Oo ST98299AG040 AB 01069 OD diag 8 ig LL Eu asieps_tobira bookk 9000 000 0000000 General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS e TEST HARNESS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 98299XA000 TEST HARNESS Used when measuring voltage and resistance of AB occupant detection system ST98299XA000 OD 00029 A OD diag 9 B ee S e tobirabok 10000 0000000000 000 000002. a P ds 45 S em 20000 0000000000 000 0000000 Inspection Mode OCCUPANT DETECTION SYSTEM DIAGNOSTICS 9 Inspection Mode A PROCEDURE Recreate the condition by referring to the fault con ditions described in the check list OD diag 20 aa WZ C 2 000 0000000000 000 0000000 Clear Memory Mode OCCUPANT DETECTION SYSTEM DIAGNOSTICS 10 Clear Memory Mode A OPERATION Clear the memory in the following steps after the malfunction is repaired For details to clear the DTC refer to Airbag Sys tem Diagnosis Subaru Select Monitor lt Ref to AB diag 29 Subaru Select Monitor gt 2 OD diag 21 e a WZ WZ T A 2000 0000000000 000 0000000 Airbag Warning Light Illumination Pattern OCCUPANT DETECTION SYSTEM DIAGNOSTICS 11 Airbag Warning Light lllumi nation Pattern A INSPECTION Turn the ignition switch to ON and confirm that the airbag warning light remains on for approx 6 sec onds then turns off With ignition left ON 2 ON OFF AB 00135 1 Airbag warning light 2 Approx 6 sec 3 Ignition switch ON OD diag 22 7 SZ 4 5 2000 0000000000 0000000 Bi Passenger s Airbag ON OFF Indicator Light Illumination Pattern OCCUPANT DETECTION SYSTEM DIAGNOSTICS 12 Pa
3. OD diag 3 E e T eet 4000 0000000000 000 0000000 General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS 3 General Description A CAUTION 1 If the seat cushion cover is removed or replaced make sure to perform passenger detection system ad justment after installing the seat to the vehicle Ref to OD diag 17 SYSTEM CALIBRATION REZERO ING OPERATION Subaru Select Monitor Failure to do so may cause improper operation of the passenger detection system 2 The passenger detection system passenger seat only control unit and the passenger detection sensor are fixed to the seat cushion frame Never remove the passenger detection control unit or the pressure sen sor from the seat cushion frame 3 Do not replace the seat cushion pad by itself Always replace the seat cushion pad and frame assembly as a set The seat cushion pad and cushion frame are adjusted as a set at the time of manufacture If cushion pads and cushion frames are combined from those of other vehicles or other sets the passenger detection system may not operate properly 4 If the seat cushion cover is removed make sure to replace the hang wire on the seat cushion side with a new wire 5 Never connect the battery in reverse polarity Occupant detection system may be destroyed instantly 6 Do not disconnect the battery terminals while the engine is running A large counter electromotive force will b
4. is shown on the screen press the YES key 5 When Done is displayed turn the Subaru Select Monitor and the ignition switch OFF NOTE For details concerning the operation procedures refer to the SUBARU SELECT MONITOR OPER ATION MANUAL 4 SYSTEM CALIBRATION REZEROING NOTE When replacing the occupant detection system or removing and disassembling the passenger s seat always perform the system calibration after install ing a seat in the vehicle CAUTION When the trouble occurs in the system during calibration process Occupant detection cali bration failure is detected in the DTC 2A of the airbag system and the airbag warning light lights In this case after turning the ignition switch to OFF once redo the system calibration Rezeroing or after clearing the cause of the failure perform the system calibration again 1 Park empty vehicle on a level surface 2 On the Main Menu display screen select Each System Check and press the YES key 3 On the System Selection Menu display screen select the Occupant Detection System and press the YES key 4 On the Occupant Detection System display screen select the Zero Point Adjustment and press the YES key OCCUPANT DETECTION SYSTEM DIAGNOSTICS 5 See service manual And check vehicle condi tion for successfully completing the rezeroing is displayed Check the following to adjust the condi tion of the vehicle Adjust the seat
5. DTC OPERATION Subaru Select Monitor gt lt Ref to AB diag 43 LIST List of Diagnostic Trou ble Code DTC gt B INSPECTION 1 COMMUNICATION FOR INITIALIZING IMPOSSIBLE DETECTING CONDITION Defective harness connector TROUBLE SUMPTOM Communication is impossible between the airbag control module and the Subaru Select Monitor Refer to Initial Communication Impossible in the DTC of the airbag system diagnosis lt Ref to AB diag 31 COMMUNICATION FOR INITIALIZ ING IMPOSSIBLE INSPECTION Subaru Select Monitor gt 2 WITHOUT DTC DETECTING CONDITION Defective combination meter Open circuit of harness TROUBLE SUMPTOM Airbag warning light remains on NO TROUBLE CODE will be displayed on the Subaru Select Monitor NOTE For detailed operation procedures refer to Air bag Warning Light Failure Ref to AB diag 38 Airbag Warning Light Failure When the airbag warning light is OFF and NO TROUBLE CODE is displayed on Subaru Select Monitor the system is operating properly OD diag 18 WZ Green WOOO 0000000000 000 0000000 Read Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS 8 Read Diagnostic Trouble Code DTC A OPERATION For details on reading DTCs refer to Airbag Sys tem Diagnosis Subaru Select Monitor Ref to AB diag 29 Subaru Select Monitor OD diag 19 e
6. 00 T A e TEST HARNESS AE General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 98299XA030 TEST HARNESS TEST HARNESS Y ADAPTER HARNESS AE Used for diagnosing the seat belt buckle switch ST98299XA030 mE OD 00026 OD diag 10 ig S e 11000 0000000000 000 OO00000 T A TEST HARNESS AC General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS ST98299XA010 98299XA010 TEST HARNESS AC Used for diagnosing the seat belt tension sensor OD 00027 OD diag 11 A ig S e 12110 0000000000 000 0000000 T General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS e TEST HARNESS AD ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 98299XA020 ST98299XA020 AD the seat belt tension sensor TEST HARNESS Used when measuring voltage and resistance of OD 00028 2 GENERAL TOOL TOOL NAME REMARKS Circuit tester Used for measuring resistance voltage and current OD diag 12 7 e 45 dt B000 0000000000 000 0000000 Electrical Component Location OCCUPA
7. CT OF CONNEC TORS Check for poor contact of the connectors between the occupant detection control mod ule and buckle switch Is there poor contact Reconnect the connector If the fault is not fixed replace the airbag harness Go to step 2 CHECK THE BUCKLE SWITCH 1 Turn the ignition switch to OFF disconnect the battery ground terminal and wait for 20 seconds 2 Disconnect the buckle switch connector AB60 3 Connect the test harness AE1 and test har ness connector Y to the buckle switch connec tor 60 4 Connect the battery ground terminal and turn the ignition switch to ON off OD diag 29 Does the airbag warning light illuminate for 6 seconds and go Replace the buckle switch Ref to SB 10 INNER SEAT BELT ASSEMBLY REMOVAL Front Seat Belt Check the seat harness and if any fault is found replace the seat harness If the fault is not fixed replace the occu pant detection sys tem E ig 30000 0000000000 000 0000000 Diagnostic Procedure with Diagnostic Trouble Code OCCUPANT DETECTION SYSTEM DIAGNOSTICS OD diag 30 a P ds 45
8. ICAL SPECIFICATION CAUTION Never remove the occupant detection control module occupant detection sensor or seat frame be cause they are integrated into one unit OCCUPANT DETECTION SYSTEM DIAGNOSTICS Terminal name ae Input Output value Remarks IG power supply 9 9 16V When ignition switch ON Airbag control module communication COM 10 Open collector terminal Communication line Airbag control module communication GND 5 OV Ground Vcc 4 0 5V Belt tension sensor power supply Belt tension sensor Vout 16 0 5 4 5 Sensor output voltage GND 14 Sensor ground Vcc 6 0 5V Pressure sensor power supply Occupant detection sensor Vout 7 0 5 4 5 V Sensor output voltage GND 15 Sensor ground Buckle switch 1 0 IG voltage Ignition voltage when switch ON Buckle switch GND 2 OV Switch ground B WIRING DIAGRAM Refer to the electrical wiring diagram lt Ref to WI 113 WIRING DIAGRAM Seat Belt Warning System gt OD diag 15 7 WZ P T C 16000 0000000000 000 0000000 Subaru Select Monitor OCCUPANT DETECTION SYSTEM DIAGNOSTICS 7 Subaru Select Monitor A OPERATION 1 READ DIAGNOSTIC TROUBLE CODE DTC When malfunction of the airbag system and the occupant detection system occur the DTC stored in airbag control module will be read out Refer to the DTC readout of the airbag system diagnosi
9. Initial Setting 4 1 The seat position is forward 2 The seat position is rearward 8 Displayed when data other than before and behind the seat such as the breakdown etc is input 4 Displayed in hte initial condition 5 Seat position sensor not supported 6 Seat belt fastened 7 Seat belt not fastened 8 Displayed when data other than belt fastened not fastened is entered Such as fault data etc 9 Seat belt buckle switch not supported 10 Passenger s seat airbag operation status 11 Passenger s seat airbag non operation status NOTE For details concerning the operation procedures refer to the SUBARU SELECT MONITOR OPERATION MANUAL OD diag 16 SA S e asieps_tobira book 17000 0000000000 000 OO00000 T A Subaru Select Monitor 3 CLEAR MEMORY MODE Clear the DTC stored in the airbag control module after repairing the airbag system and occupant de tection system After the breakdown is recovered the breakdown code for completed recoveries are read out when the next breakdown occurs if the memory clear work is not performed 1 On the Main Menu display screen select Each System Check and press the YES key 2 On the System Selection Menu display screen select the Airbag System and press the YES key 3 On the Airbag System menu screen select the Clear Memory and press the YES key 4 When the Clear Memory
10. NG Perform system calibration using the Subaru Select Monitor lt Ref to OD diag 17 SYS TEM CALIBRATION REZEROING OPERA Did the system calibration complete properly TION Subaru Select Monitor gt B DTC 2B ODS SYSTEM WRONG PARTS DTC DETECTING CONDITION Wrong airbag control module is installed Wrong occupant detection system is installed Step Check Finish the diagno sis Yes Follow the system calibration proce dures Ref to OD diag 17 SYS TEM CALIBRA TION REZEROING OPERATION Subaru Select Monitor No CHECK OCCUPANT DETECTION SYSTEM 1 Turn ignition switch OFF disconnect the battery ground cable and wait more than 20 seconds 2 Replace the passenger s seat frame assembly Ref to SE 9 REMOVAL Front Seat Ref to SE 15 PASSENGER S SEAT DISASSEMBLY Front Seat 3 Connect the ground cable to battery 4 Connect Subaru Select Monitor to the vehi cle and perform the system calibration Ref to OD diag 17 SYSTEM CALIBRATION REZEROING OPERATION Subaru Select Monitor Did the system calibration complete properly Finish the diagno sis Go to step 2 CHECK AIRBAG CONTROL SYSTEM 1 Turn ignition switch OFF disconnect the battery ground cable and wait more than 20 seconds 2 Replace the airbag control module Ref to AB 23 REMOVAL Airbag Control Module 3 Connect the ground cable to battery 4 Connect Subaru Se
11. NT DETECTION SYSTEM DIAGNOSTICS 4 Electrical Component Location A LOCATION 15 d D d 1 L pi OP i OD 00035 1 Occupant detection control mod 3 Airbag ON OFF indicator light 5 Seat belt tension sensor ule Map lamp 2 Occupant detection sensor 4 Buckle switch Passenger s seat OD 00016 OD 00015 OD 00036 E OD diag 13 B i 00017 Zs WZ ren 0000000000 000 0000000 T Airbag Connector OCCUPANT DETECTION SYSTEM DIAGNOSTICS 5 Airbag Connector A PROCEDURE 1 BUCKLE SWITCH 1 How to disconnect 1 Move the slide lock A in the direction of ar row 2 While holding the slide lock A in the open position disconnect the connector AB 00721 CAUTION When pulling the slide lock or disconnecting connector be sure to hold the connector not the harness 2 How to connect Holding the connector A and push it in carefully until a clicking sound is heard A x AB 00016 CAUTION Be sure to insert the connector in until it is locked Then pull it lightly to make sure that it is locked OD diag 14 7 ig T ee 0000000000 000 0000000 Control Module I O Signal 6 Control Module I O Signal A ELECTR
12. OCCUPANT DETECTI ON SYSTEM DI AGNOSTI CS 2000 0000000000 000 0000000 Basic Diagnostic Procedure OCCUPANT DETECTION SYSTEM DIAGNOSTICS 1 Basic Diagnostic Procedure A PROCEDURE Step Check Yes No CHECK WARNING LIGHT Does the airbag warning light Go to step 2 Perform the diag Check whether the airbag warning light in the illuminate nosis according to combination meter is lit phenomenon of the problem READ DTC Is DTC displayed Go to step 3 Go to Airbag 1 Turn the ignition switch to OFF Warning Light Fail 2 Connect the Subaru Select Monitor to the ure Ref to data link connector 3 Turn the ignition switch to ON and the Sub aru Select Monitor power switch to ON 4 Read the DTC Ref to OD diag 19 OPERATION Read Diagnostic Trouble Code DTC gt NOTE If the communication function of the Subaru Se lect Monitor cannot be executed normally check the communication circuit lt Ref to AB diag 31 COMMUNICATION FOR INI TIALIZING IMPOSSIBLE INSPECTION Sub aru Select Monitor gt 5 Record all DTCs and freeze frame data AB diag 38 Air bag Warning Light Failure gt PERFORM DIAGNOSIS 1 Determine the possible cause from List of Diagnostic Trouble Code lt Ref to OD diag 24 List of Diagnostic Trouble Code DTC gt 2 Inspect the DTC using List of Diagnostic Trouble Code DTC 3 Repair the trouble cause 4 Perform Clear Memo
13. Troubleshooting for the electrical system ST18482AA010 22771AA030 SUBARU SELECT Troubleshooting for the electrical system MONITOR KIT ST22771AA030 OD diag 5 A e ig S e book 6000 0000000000 000 0000000 T TEST HARNESS D General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS ST98299AG060 98299AG060 TEST HARNESS D Used when measuring the voltage and resis tance of the front seat belt buckle switch AB 01068 e TEST HARNESS U ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS ST98299AG000 98299AG000 TEST HARNESS U Used when measuring voltage and resistance of airbag control module OD diag 6 ig S em d rare t 7000 000 0000000 General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS bep pedes p psp pepeppe pe 241418019248 speso 4519 beos va i Teo po pe op kd pope Br pide Tenes e 527
14. backrest to be fully upright For models with power seats press the power seat but ton until the backrest comes to a stop e Adjust the seat slide position all the way back For models with power seats press the power seat button until the seat slide does not move any further Do not place anything on the top of the seat cushion Sit on the seat cushion to smooth the seat sur face Check that the passenger s seat belt is not in serted into the buckle not tense or not stuck Check that ambient temperature is in a range from 0 to 40 C 6 When the Re zeroing Adjust the passenger seat to the condition shown in service manual is displayed slide the passenger seat all the way to the back check that the backrest is adjusted to all the way up and press the YES key OD 00025 7 When the Re zeroing Unbelt the Passenger seatbelt Continue YES Quit NO is displayed make sure the passenger s seatbelt is disconnect ed from the buckle and press the YES key 8 When the Re zeroing Empty the passenger seat Continue YES Quit NO is displayed make sure that the passengers seat is empty airbag OFF indicator illuminates and airbag ON indicator does not illuminate and press the YES key NOTE After pressing the YES key Now processing Wait for a while Do not touch or give impact to vehicle and seat is displayed Do not touch or rock the vehicle while the message is displaye
15. ck Yes No CHECK POOR CONTACT OF CONNEC TORS Check for poor contact of the connectors between the occupant detection control mod ule and airbag control module Is there poor contact Reconnect the connector If the fault is not fixed replace the airbag harness Go to step 2 CHECK DIAGNOSTIC TROUBLE CODE DTC READ DIAGNOSTIC TROUBLE CODE DTC FOR THE AIRBAG SYSTEM code OD diag 28 Is 2C Belt Tension Sensor fail ure or 37 Buckle Switch failure displayed in the diagnostics Perform the diag nosis according to each DTC Check the seat harness and if any fault is found replace the seat harness If the fault is not fixed replace the occu pant detection sys tem Ref to SE 15 PASSEN GER S SEAT DIS ASSEMBLY Front Seat y WZ P S e tobirabok 29000 0000000000 000 OO00000 T Diagnostic Procedure with Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS F DTC 37 BUCKLE SWITCH RH FAILURE DTC DETECTING CONDITION e Passengers buckle switch circuit is open shorted or shorted to ground Seat harness circuit is open shorted or shorted to ground e Occupant detection control module is faulty WIRING DIAGRAM FRONT SEAT BELT SWITCH RH OCCUPANT DETECTION CONTROL MODULE OD 00024 Step Check Yes No CHECK POOR CONTA
16. d During the system calibration process if the Re zeroing is unsuccessful See service manual Press YES to END is displayed go to step 10 9 When the re zeroing is ended normally the Re zeroing is successfully completed Press YES to END is displayed Press the YES key and turn the ignition switch to OFF to finish the diagnosis OD diag 17 A ig S em east 18000 0000000000 000 0000000 Subaru Select Monitor OCCUPANT DETECTION SYSTEM DIAGNOSTICS 10 During the system calibration process if Re zeroing is unsuccessful See service manual Press YES to END is displayed turn the ignition switch to OFF once and turn it to ON again then read the DTC of the airbag system Ref to AB diag 29 READ DIAGNOSTIC TROUBLE CODE DTC OPERATION Subaru Select Monitor When DTC is input fix the fault and then perform the system calibration When DTC is not input check the seat and vehicle status and then perform the system calibration again Ref to OD diag 17 SYSTEM CALIBRATION REZEROING OPERA TION Subaru Select Monitor NOTE When the re zeroing is unsuccessful there could be occupant detection system failure or improper seat and vehicle status When the airbag warning light illuminates read the DTC of the airbag sys tem and perform the diagnosis while referring to List of Diagnostic Trouble Code lt Ref to AB di ag 29 READ DIAGNOSTIC TROUBLE CODE
17. e generated in the generator and this voltage may damage elec tronic parts such as occupant detection control module 7 Before disconnecting the connectors of each sensor and control module be sure to turn the ignition switch to OFF and wait for 20 seconds or more Occupant detection control module may be damaged 8 All passenger dectection system parts are precision components Do not drop them CAUTION The airbag system wiring harnesses and connectors are all yellow in color Do not use the electri cal test equipment on these circuits Becareful not to damage the airbag system wiring harness when servicing the occupant detection system Referto Airbag System when repairing the occupant detection system Ref to AB diag 4 CAU TION General Description B INSPECTION Measure the battery voltage and check electrolyte Standard voltage 12 V Specific gravity Above 1 260 Fluid level Between the upper level and lower level C PREPARATION TOOL CAUTION To measure the voltage and resistance of airbag system and occupant detection system compo nents be sure to use the specified test harness OD diag 4 7 SA P S e book 5000 000 0000000 T 1 SPECIAL TOOL General Description OCCUPANT DETECTION SYSTEM DIAGNOSTICS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 18482AA010 CARTRIDGE
18. lect Monitor to the vehi cle and perform the system calibration Ref to OD diag 17 SYSTEM CALIBRATION REZEROING OPERATION Subaru Select Monitor Did the system calibration complete properly OD diag 25 Finish the diagno sis Check between the occupant detection control module and air bag control mod ule SA i S e tobirabok 26000 0000000000 000 0000000 T Diagnostic Procedure with Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS C DTC 2C BELT TENSION SENSOR FAILURE DTC DETECTING CONDITION Passengers seat belt tension sensor is faulty Airbag main harness circuit is open or shorted Occupant detection control module is faulty WIRING DIAGRAM TO POWER SUPPLY CIRCUIT BELT TENSION SENSOR BROWN FB 47 F B FUSE NO 25 e 1 2 3 5 AB61 GRAY 11213 4 5 6 OCCUPANT DETECTION CONTROL MODULE OD 00022 Step Check Yes No CHECK POOR CONTACT OF CONNEC Is there poor contact Reconnect the Go to step 2 TORS connector If the Check for poor contact of the connectors fault is not fixed between the occupant detection control mod replace the airbag ule and belt tension sensor harness CHECK THE BELT TENSION SENSOR Does the airbag warning light Replace the seat Go to step 3 1 Turn the ignition switch to OFF di
19. ry Mode Ref to OD diag 21 Clear Memory Mode gt 5 Perform Inspection Mode Ref to OD diag 20 Inspection Mode gt 6 Read any other DTCs displayed Is DTC displayed D diag 2 Perform the proce dure 1 to 5 in step 3 Finish the diagno sis SA 5 rares trans 3000 0000000000 000 0000000 T Check List for Interview OCCUPANT DETECTION SYSTEM DIAGNOSTICS 2 Check List for Interview A CHECK Customer s Name Inspector s Name Date vehicle brought in Registration No Odometer reading VIN Date problem occurred Registration year Weather Fine Cloudy Rainy 11 Snowy Others Temperature C F Road condition L Level road Uphill Downhill Roughroad L Others JStarting L Idiing Vehicle operation Driving L Constant speed Acceleration LL Deceleration Steering wheel turn Others Details of problem Airbag warning light operation L Normal After turning the ignition switch to ON illuminates for 6 seconds then goes off 1 Remains ON L Remains OFF Passenger s airbag ON OFF indicator does not operate L Normal After turning the ignition switch to ON illuminates for 6 seconds then goes off for 2 seconds Lights ON adult or OFF children unoccupied Both remain ON Both remain OFF DTC output L Normal code DTC Code
20. s lt Ref to AB diag 29 READ DIAGNOSTIC TROUBLE CODE DTC OPERATION Subaru Select Monitor gt NOTE For details concerning the operation procedures refer to the SUBARU SELECT MONITOR OPERATION MANUAL For details concerning DTCs refer to the List of Diagnostic Trouble Code Airbag system Occupant de tection system Ref to AB diag 43 List of Diagnostic Trouble Code DTC Ref to OD diag 24 List of Diagnostic Trouble Code DTC gt 2 DISPLAY OF STATUS INFORMATION Check the operating condition of each sensor in the event of a malfunction in the seat belt buckle switch and seat position sensor or when the seat belt buckle switch and seat position sensor have been replaced 1 On the Main Menu display screen select Each System Check and press the YES key 2 On the System Selection Menu display screen select the Airbag System and press the YES key 3 On the Airbag System display screen select the Status Data and press the YES key The following table is for support data Contents Display Contents Seat position sensor LH Front position position Other Initial Setting 3 5 Seat position sensor RH 5 Seat belt buckle switch LH Buckled 6 Unbuckled 7 Other Initial Setting 4 9 Seat belt buckle switch RH Buckled 6 Unbuckled 7 Other Initial Setting 4 9 Passenger s airbag control status ON 19 1
21. sconnect illuminate for approximately 6 belt outer Ref to the battery ground cable and wait more than seconds and go off SB 10 OUTER 20 seconds SEAT BELT 2 Disconnect the belt tension sensor connec ASSEMBLY tor AB56 from the airbag harness REMOVAL Front 3 Connect the test harness AC to the con Seat Belt gt nector AB56 4 Connect the battery ground terminal and turn the ignition switch to ON OD diag 26 ig S em E 27000 0000000000 000 0000000 Diagnostic Procedure with Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS Step Check Yes No CHECK AIRBAG HARNESS Is the resistance less than 10 Go to step 4 Replace the airbag 1 Turn the ignition switch to OFF disconnect Q harness along with the battery ground cable and wait more than chassis harness 20 seconds 2 Disconnect the test harness AC from the belt tension sensor connector AB56 3 Connect the test harness AD 1AD to the connector AB56 4 Disconnect the airbag harness connector AB61 and connect connector 1AB of test harness AB 5 Measure the resistance between test har ness terminals Connector amp terminal 2AB No 5 2AD No 1 2AB No 4 2AD No 3 2AB No 6 2AD No 2 CHECK AIRBAG HARNESS Is the resistance more than 1 Go to step 5 Replace the airbag Measure the resistance between test harness MO harness along with terminals and between
22. ssenger s Airbag ON OFF Indicator Light Illumination Pattern A INSPECTION OD 00010 1 Passengers airbag ON indicator 4 Ignition switch 9 Adult light 5 Light OFF 10 OFF 2 Passengers airbag OFF indicator 6 Light ON 11 ON light 7 Empty 12 Approx 6 sec 3 Occupant seating 8 Child 13 Approx 2 sec OD diag 23 S e A 4000 0000000000 000 0000000 List of Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS 13 List of Diagnostic Trouble Code DTC A LIST DTC Display Diagnosis content Reference 2A ODS Calibration Error System calibration Rezeroing was not completed lt Ref to OD diag 25 DTC 2A normally ODS CALIBRATION ERROR Diagnostic Procedure with Diag nostic Trouble Code DTC gt 2B ODS System Wrong Parts Wrong airbag control module was installed Ref to OD diag 25 DTC 2B Wrong occupant detection system was installed ODS SYSTEM WRONG PARTS Occupant detection system is faulty Diagnostic Procedure with Diag nostic Trouble Code DTC gt 2C Belt Tension Sensor Failure Passengers seat belt tension sensor is faulty Ref to OD diag 26 DTC 2C Airbag main harness circuit is open or shorted BELT TENSION SENSOR FAIL Occupant detection system is faulty URE Diagnostic Procedure with Occupant detection harness is faulty Diagnostic Trouble Code DTC gt 27 ODS Communication Error Occ
23. test harness terminal chassis harness and chassis ground Connector amp terminal 2AB No 4 2AD No 1 2AB No 4 2AD No 2 2AB No 4 chassis ground 2AB No 5 2AD No 2 2AB No 5 chassis ground CHECK AIRBAG HARNESS Is the voltage less than 1 V Replace the airbag Check the seat 1 Connect the battery ground terminal and harness along with harness and if any turn the ignition switch to ON chassis harness fault is found 2 Measure the voltage between test harness replace the seat and chassis ground harness If no fault Connector amp terminal is found in the seat 2AD No 1 chassis ground harness replace 2AD No 3 chassis ground the seat cushion frame assembly Ref to SE 15 DISASSEMBLY Front Seat P OD diag 27 S 4 T A Greter 28 000 0000000000 000 0000000 Diagnostic Procedure with Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS D DTC 27 ODS COMMUNICATION ERROR Perform the diagnosis following diagnostic procedures for the airbag system lt Ref to AB diag 67 DTC 27 ODS COMMUNICATION ERROR Diagnostic Chart with Trouble Code gt E DTC 29 ODS FAILURE DTC DETECTING CONDITION e Occupant detection sensor is faulty e Occupant detection control module is faulty Occupant detection harness is faulty Rear airbag harness is faulty Fuse No 25 in joint box is blown Step Che
24. upant detection control module and airbag Ref to OD diag 28 DTC 27 control module communication is faulty ODS COMMUNICATION Airbag rear harness circuit is open shorted or ERROR Diagnostic Procedure shorted to ground or shorted to power supply with Diagnostic Trouble Code Occupant detection harness is faulty DTC gt Occupant detection system is faulty Airbag control module is faulty 29 ODS Failure Occupant detection sensor is faulty Ref to OD diag 28 DTC 29 Occupant detection control module is faulty ODS FAILURE Diagnostic Pro Occupant detection harness is faulty cedure with Diagnostic Trouble Fuse No 25 in joint box is blown Code DTC gt 37 Buckle Switch RH Failure e Passenger s buckle switch circuit is open shorted Ref to OD diag 29 DTC 37 or shorted to ground BUCKLE SWITCH RH FAILURE Occupant detection system is faulty Diagnostic Procedure with Diag Occupant detection harness is faulty nostic Trouble Code DTC gt OD diag 24 SA Greter gt 0000000000 000 0000000 Diagnostic Procedure with Diagnostic Trouble Code DTC E a OCCUPANT DETECTION SYSTEM DIAGNOSTICS 14 Diagnostic Procedure with Diagnostic Trouble Code DTC A DTC 2A ODS CALIBRATION ERROR DTC DETECTING CONDITION System calibration Rezeroing was not completed properly Check Step Yes No PERFORM RE ZEROI
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