Service Manual
Contents
1. L21B7022T10 1 11 ECU DATA MONITOR FREEZE FRAME DATA Name of item UNIT Minimum value of varia Explatation Abbreviated name tion TEST s Indication of GND OPEN status of the T terminal a Indication of ON OFF status of the IG SW KEY SW um n DENT i W KSW Indication of ON OFF status of the KEY S Indication of OUTPUT OFF status of the REQ permission signal Output after recognizing IG SW ON REQ permission signal REQ Indication of Match Mismatch status of the transponder communication Match when the IG ON has been set Transponder communication TP EE state Indication of UNSET SET status of the immobilizer state IMO Main key 4 ndication of Not registered Registered Unknown KKD4 status of the main key4 Main key 3 _ ndication of Not registered Registered Unknown KKD3 status of the main keys Main key 2 ndication of Not registered Registered Unknown KKD2 status of the main key2 Main key 1 ndication of Not registered Registered Unknown KKD1 status of the main key12. 1 9 6 B2788 B2789 NO 41 NO 42 COMMUNICATION SYSTEM WITH EFI 1 Checking points 1 Are the harness and connector between the EFI ECU and immobilizer ECU normal 2 Checking method 221 Check wire harness conduction 1 Check conduction between following terminals 1 EFI ECU vehicle harness side 117 SIO2 immobilizer ECU vehicle harness side 8 SIO2 SPECIFIED VALUE Continuity exists Y If it is OK proceed to 222 after replacing the immobilizer ECU Y f itis NG replace harness and connector 222 Operation check of immobilizer ECU 1 After registration of key ID code to immobilizer ECU check if operating normally SPECIFIED VALUE The engine can start V If it is OK this completes the check Y f itis NG replace EFI ECU Refer to Page B8 1 14 21 1 10 UNIT CHECK 1 10 1 TRANSPONDER KEY COIL 1 Key insertion switch 1 Insert and remove the key in the IG switch LOCK posi tion and check the conduction between the terminals Key SW conduction chart Terminal No Switching 2 6 K inserted No continuity exists Lock cylinder ey Bot inse el y ad Key inserted Continuity exists L21B7022T10 2 Immobilizer coil 1 Check conduction between terminals D and Q2 SPECIFIED VALUE Continuity exists CAUTION e Even if continuity exists no judgment can be made about whether the coil is normal or not
3. Be sure to check before hand if it can be erased 1 Stop the vehicle 2 After IG SW is set to LOCK connect the diagnosis tester to DLC 3 After IG SW is set to ON use the diagnosis tester to erase the diagnosis code 1 8 5 DIAGNOSIS CODE ERASE METHOD ERASED BY WAY OF SHORT CIRCUIT IN DLC 1 When a location where an abnormality code occurred has been repaired the memory is erased with the method shown below After erasing the memory output the diagnosis code again and confirm that the code is output normally 1 Disconnect the negative terminal of the battery 14 16 1 8 6 CONTENTS OF DIAGNOSIS Contents of diagnosis Code No Warning indica Code memory Contents of diagnosis 2 4 digit tion Yes O No X System diagnosed Diagnosis items Yes O No X 12 B2796 x x Immobilizer coil Faulty key or immobilizer coil 15 B2780 X O Key switch Key switch OFF malfunction 21 B2795 x O Transponder communi Mismatching of key ID codes cation 22 B2794 x O Transponder communi Mismatching of key ID codes cation 23 B2793 x O Transponder lock Key ID codes not registered 24 B2797 x x Transponder communi Transponder communication faulty cation 25 B2798 x x Transponder communi Frame receiving faulty cation 41 B2788 x O Communication between Faulty communication with EFI ECU D EFI codes do not match 42 B2789 X O Communication betw
4. L Others 14 5 5 6 TROUBLE SHOOTING ACCORDING TO MALFUNCTION PHENOMENA 5 6 1 PROBLEM WITH POWER DOOR LOCK OPERATION 1 All doors are not locked interlocking with lock operation at driver s seat 221 Power supply system check 1 Check the voltage between the following terminals 1 Between the harness side connector 3 B of door lock control relay the body earth SPECIFIED VALUE 10 14V Y If it is OK go to Step gt 2 Y In the case of NG ensure that there is no abnormality in the fuse D L and F L Check the battery voltage Ensure that there is no abnormality such as open wire in the harness of power supply system 2 gt 2 Earth system check 1 Check to see if continuity exists between the following terminals 2 Between the harness side connector 6 E of door lock control relay the body earth SPECIFIED VALUE Continuity exists Y If it is OK go to Step 223 Y In the case of NG repair the earth wire 2 gt 3 Unit check of door lock position switch 1 Perform a unit check of the driver s seat door lock position switch Refer to Page 14 8 Y If itis OK go to Step gt 4 Y f an abnormality is found replace the door lock motor Ay LH 2 gt 4 Wire harness check 1 1 Check the continuity of the wire harness between the following terminals 1 Between harness side connector 4 ULSW of the door lock control relay and terminal harness side connector 8 U L of the door lock pos
5. the information obtained through the diagnosis by interviews is referred to during the trouble shooting it is imperative to make the inquiry of the customer centering on the items related to the malfunction instead of simply asking general questions 1 Diagnosis interview sheet for Power door lock system Checked by Check date Month Day day of week Customer information Gender of customer Male fe Age approx Occupation Name of cus male tomer Area where vehi Urban suburb seashore moun Parking Outdoor in Mr Ms cle is mainly used tain others place door Details of vehicle Date when Month Date when Month Repair history No Yes how many vehicle was Day day of week malfunction Day day of week times brought to took place workshop Frame No Registration Year Month Vehicle model date Day Engine type Transmis SA T 4A T CVT Electronically Driving 2WD 4WD sion controlled 4A T Running dis km Equipment Tire Wheel Steel Aluminum tance Weather Fine L Cloudy Rainy Snow Other Temperature approx lt Frequency of malfunction Always L Under certain condition L Sometimes Phenomenon Locks on none of the doors operate with driver s seat lock operation O Locks on certain doors do not operate with driver s seat lock operation
6. 4 DOOR LOCK amp THEFT DETERRENT POWER DOOR LOCK SYSTEM 4 1 DOOR CONTROL RELAY 4 1 REMOVAL AND INSTALLATION 4 1 FRONT DOOR LOCK MOTOR 4 2 REMOVAL AND INSTALLATION 4 2 REAR DOOR LOCK MOTOR 4 2 REMOVAL AND INSTALLATION 4 2 BACK DOOR LOCK MOTOR 4 2 REMOVAL AND INSTALLATION 4 2 POWER DOOR LOCK SYSTEM 4 2 ARTICLES TO BE PREPARED 4 2 SYSTEM WIRING DIAGRAM 4 2 ARRANGEMENT OF VEHICLE HAR NESS SIDE CONNECTOR TERMINALS p D MEME 3 LOCATION OF COMPONENTS 3 HOW PROCEED WITH TROUBLE SHOOTING es iens 4 4 TROUBLE SHOOTING ACCORDING TO MALFUNCTION PHENOMENA 4 5 UNIT CHECK eniai naaa 4 8 IMMOBILIZER SYSTEM 4 9 IMMOBILIZER SYSTEM 4 9 ARTICLES TO BE PREPARED 4 9 SYSTEM WIRING DIAGRAM 4 9 ARRANGEMENT OF ECU TERMINAL GER MEE EE ed es 4 10 ARRANGEMENT OF VEHICLE HAR NESS SIDE CONNECTOR TERMINALS UD HELME TED 4 11 LOCATION OF COMPONENTS 4 12 HOW TO PROCEED WITH TROUBLE Ses ed eaea ane 4 13 ese EE DAE 4 14 CONFIRMATION RECORD AND ERA SURE OF DIAGNOSIS CODE 4 14 TROUBLE SHOOTING ACCORDING TO DIAGNOSIS 4 17 UNIT CHECK es eee Ese se EE ER 4 21 ECU DATA MONITOR FREEZE FRAME 14 1 POWER DOOR LOCK SYSTEM 1
7. DOOR CONTROL RELAY 1 1 REMOVAL AND INSTALLATION CAUTION e Avoid dropping or causing major shock to the door control relay If the door control relay dropped or subjected to major shock for some reason replace it with a new door control relay even if the external appearance is all right 1 1 1 OPERATION BEFORE REMOVAL 1 Remove the battery negative terminal after IG SW is in LOCK 2 Remove the combination meter Ay Refer to Page J3 3 1 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components 2185768820 The illustration shows typical example 2 Removal and installation procedures v A 1 Relay Ay door control 1 1 3 INSPECTION 1 Relay Ay door control 1 When the following cases have occurred replace the relay Ay door control with a new one 1 If there is warping rubbing marks or cracking on the door control relay CAUTION e Never disassemble relay Ay 1 1 4 OPERATION AFTER INSTALLATION 1 Install the combination meter Ay Refer to Page J3 3 2 Connect the negative terminal of the battery 4 2 2 FRONT DOOR LOCK MOTOR 2 1 REMOVAL AND INSTALLATION Refer to Page 11 21 3 REAR DOOR LOCK MOTOR 3 1 REMOVAL AND INSTALLATION Refer to Page 11 39 4 BACK DOOR LOCK MOTOR 4 1 REMOVAL AND INSTALLATION Refer to Page 11 45 5 POWER DOOR LOCK SYSTEM 5 1 ARTICLES TO BE PREPARED Instrument Voltage tester DS I 5 2 SYSTEM WIRING DIAGRAM D L MAIN Door lock control re
8. H RR LH 1 Check the door locking operation when the battery volt age is applied between the motor Ay terminals Connection Terminal Operation Battery positive 4 LOCK Battery negative 1 oe Battery positive 1 NLOCK Battery negative 4 Ee 5 7 4 BACK DOOR LOCK ACTUATOR 1 Check the door locking operation when the battery volt age is applied between the motor Ay terminals P21B5772T10 P21B5772T10 P21B5772T10 Connection Terminal Operation Battery positive 1 LOCK Battery negative 2 pe Battery positive 2 NLOCK Battery negative 1 UNDO P21B5773T10 14 9 N IMMOBILIZER SYSTEM 1 IMMOBILIZER SYSTEM 1 1 ARTICLES TO BE PREPARED SST Shape Part No Part name 77 09991 87403 000 Wire diagnosis check Instrument Electrical tester DS I 1 2 SYSTEM WIRING DIAGRAM Fuse block Battery HORN HAZ fo 192 Engine control computer Key DLC switch O 3 B KSW T SIO IG SIO2 Immobilizer ECU GND COIL COIL IND 7 3 6 49 Twist pair lead Security indicator lamp Immobilize
9. TY INDICATOR LAMP 1 Stop the vehicle 2 Turn the IG switch to LOCK and use the SST to short the terminal and E terminal in the DLC below the instrument panel CAUTION ECU T e Connecting the connector in the wrong location could cause a malfunction Therefore make sure that the connection is correct E SST 09991 87403 000 09991 97201 000 H11A5014T10 14 15 3 Turn the IG switch ON and cause the security indicator to blink to display the diagnosis code 4 Regarding display of diagnosis codes all memorized malfunction codes are indicated repeatedly starting with the smallest number eo SECURITY Shorted Shorted ECU T ECU T Open Open i 0 25 sec n see 0 5 sec L3 sec 15 sec 2 5 sec Illuminated Illuminated Security indicator lamp indicator lamp Extinguished Extinguished Code 21 Code 41 Normal code Abnormality code in the case of code 210r 41 P21B5502ES30 1 8 4 CANCELING METHOD OF DIAGNOSIS ERASURE BY 05 11 NOTE e f the locations where abnormality codes were generated have been checked and repaired carry out erasing with the following method of the code recorded in the ECU e If it possible to erase the abnormality codes carry out checking and repair of location again where the abnormality codes were generated e f abnormality codes is erased the freeze frame data is also erased
10. assenger seat 6 Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor on the right hand side of the rear seat 7 Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor on the left hand side of the rear seat 8 Between the harness side connector 2 LOK of door lock control relay The harness side connector 1 LOK of back door lock motor SPECIFIED VALUE Continuity exists Y If it is OK go to Step 222 Y In the case of NG repair the harness 2 gt 2 Door lock motor single unit check 1 Check the door lock motor single units that are not functioning Refer to Page 11 24 Y In the case of OK replace the door lock control relay Y In the case of NG replace the door lock motor 14 8 5 7 UNIT CHECK 5 7 1 DRIVER S SEAT DOOR LOCK POSITION SWITCH 1 Check continuity between terminals of the switch Switching Terminal No Standard LOCK 7 8 No conductivity UNLOCK 7 8 Continuity exists 5 7 2 DOOR LOCK MOTOR FR RH 1 Check the door locking operation when the battery volt age is applied between the motor Ay terminals Connection Terminal Operation Battery positive 4 Battery negative 1 L OCE Battery positive 1 NLOCK Battery negative 4 PNEOU 5 7 3 DOOR LOCK MOTOR AY RR R
11. bilizer ECU check that the system functions normally SPECIFIED VALUE The engine can start Y If it is OK complete the check Y f it is NG replace the transponder key coil 1 9 4 B2793 NO 23 TRANSPONDER LOCK SYSTEM 1 Checking points 1 Is the master key normal 2 Checking method 221 Confirmation of diagnosis code 1 Check output of diagnosis code after reregistering the master key ID code SPECIFIED VALUE Normal code is output Y If it is OK this completes the check Y If it is NG perform the key replacement and re registration of the key ID code CAUTION e Be sure to retrieve the replaced master key 1 9 5 B2797 B2798 NO 24 NO 25 TRANSPONDER COMMUNICATION SYSTEM 1 Checking points 1 Are the keys contacting each other 2 Is there a noise source on the communications line 2 Checking method 14 20 2 gt 1 Check immobilizer ECU 1 Insert registered master key in key cylinder 2 Check whether noise is included in computer side terminal 6 of immobilizer ECU SPECIFIED VALUE Noise detected NOTE e Some noise contained on communications line Y If it is OK remove the source of noise Y If itis NG go to 2 D2 Check transponder key coil operation 1 Replace transponder key coil with normal product for checking 2 Check whether engine starts SPECIFIED VALUE Engine starts Y If it is OK replace the transponder key coil Y If it is NG replace the immobilizer ECU
12. eat Between the harness side connector 2 LOK of door lock control relay The harness side connector 1 LOK of back door lock motor SPECIFIED VALUE Continuity exists Y If it is OK go to Step D6 Y In the case of NG repair the harness 2 gt 6 Door lock motor single unit check 1 Check all the door lock motor single units Refer to Page 11 24 Y In the case of OK replace the door lock control relay Y In the case of NG replace the door lock motor 2 Some doors are not locked interlocking with lock operation at driver s seat 4 1 221 Wire harness check 1 Check the continuity of the wire harness between the following terminals 1 Between the harness side connector 1 U L of door lock control relay The harness side con nector 1 U L of front passenger seat door lock motor 2 Between harness side connector 1 U L of the door lock control relay and harness side con nector 1 0 of the door lock motor on the right hand side of the rear seat 3 Between harness side connector 1 U L of the door lock control relay and harness side con nector 1 U L of the door lock motor on the left hand side of the rear seat s 4 Between the harness side connector 1 U L of door lock control relay The harness side con nector 2 of back door lock motor 5 Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor of the front p
13. een Faulty communication with EFI ECU 2 EFI no reply 14 17 1 9 TROUBLE SHOOTING ACCORDING TO DIAGNOSIS CODE 1 9 1 B2796 NO 12 IMMOBILIZER COIL SYSTEM 1 Checking points 1 Is immobilizer coil normal 2 Are the harnesses and connectors normal between the immobilizer coil and immobilizer ECU 2 Checking method 221 Wire harness continuity check 1 Turn the IG SW to OFF 2 Check conduction between the following terminals 1 Immobilizer coil vehicle harness side 1 COIL immobilizer ECU vehicle harness side 6 2 Immobilizer coil vehicle harness side 2 COIL immobilizer ECU vehicle harness side 13 COIL SPECIFIED VALUE Continuity exists Y If it is OK go to 222 v f it is NG replace harness and connector gt gt 2 Immobilizer coil unit check 1 Carry out the unit check of the transponder key coil immobilizer coil Refer to Page 14 21 SPECIFIED VALUE No abnormality exists Y If it is OK go to Da Y If NG replace the transponder key coil 223 Operation check by other key 1 Check operation with the master key SPECIFIED VALUE It operates properly Y If itis OK perform the key replacement and re registration Y f it is NG replace the transponder key coil 14 18 1 9 2 B2780 NO 15 KEY SWITCH SYSTEM 1 Checking points 1 Is the key insertion switch normal 2 Checking method 221 Check wire harness conduction 1 Check conduction between
14. he vehicles concerned it is impossible to deter mine the cause without confirming the malfunction phenomenon If the phenomenon is not con firmed the vehicle may not be able to return to the normal conditions even if you continue your work Diagnosis through inquiries is carried out to collect information from the customer before confirming the malfunction phenomena The diagnosis through inquiries provides very important clues in re producing malfunction phenomena 2 Since the information obtained by the diagnosis through inquiries is referred to during the trouble shooting it is imperative to make an inquiry of the customer centering on the items related to the malfunction instead of simply asking general questions 1 8 CONFIRMATION RECORD AND ERASURE OF DIAGNOSIS CODE 1 8 1 OUTLINE 1 When the diagnosis abnormality code is displayed confirm whether the malfunction took place in the past in the system or is still persisting It is also necessary to check any possible relationship between the code and the reproduced malfunction For this purpose the diagnosis code should be indicated twice namely before and after the confirmation of the phenomena 1 8 2 CHECKING METHOD OF DIAGNOSIS INDICATION BY DS II 1 Stop the vehicle 2 After IG SW is set to LOCK connect the diagnosis tester to DLC 3 After IG SW is set to use the diagnosis tester to read the diagnosis code 1 8 3 DIAGNOSIS CODE DISPLAY METHOD DISPLAYED BY THE SECURI
15. ition switch 2 Between body earth and harness side connector 7 E of the door lock position switch SPECIFIED VALUE Continuity exists Y If it is OK go to Step gt 5 Y In the case of NG repair the harness 14 6 255 Wire harness check 2 1 Check the continuity of the wire harness between the following terminals 1 Between the harness side connector 1 U L of door lock control relay The harness side con nector 1 U L of front passenger seat door lock motor Between harness side connector 1 U L of the door lock control relay and harness side con nector 1 U L of the door lock motor on the right hand side of the rear seat Between harness side connector 1 U L of the door lock control relay and harness side con nector 1 U L 4 of the door lock motor on the left hand side of the rear seat Between the harness side connector 1 U L of door lock control relay The harness side con nector 2 of back door lock motor Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor of the front passenger seat Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor on the right hand side of the rear seat Between harness side connector 2 LOK of the door lock control relay and harness side con nector 4 LOK of the door lock motor on the left hand side of the rear s
16. lay bis ULSW LOK U L 4 D 2 On 1 Driver s seat door lock control switch P21B5900ES20 14 3 5 3 ARRANGEMENT OF VEHICLE HARNESS SIDE CONNECTOR TERMINALS U L LOK il 1 12 3 4 4 5 6 7 6 9 10 Front RH door lock motor 1 2 Rear LH door lock motor Front RH door lock motor U L LOK Door lock control relay E ULSW Driver s seat door control switch EXIBETIDEST 5 4 LOCATION OF COMPONENTS 2185902825 seat door lock position switch Door lock motor Ay FR RH Door lock motor Ay RR RH Door lock motor Ay RR LH Back door lock actuator Door control relay 10 5 14 4 5 5 HOW PROCEED WITH TROUBLE SHOOTING 5 5 1 DIAGNOSTIC INTERVIEW 1 In an effort to remove causes for malfunction from the vehicle concerned it is impossible to deter mine the cause without confirming the malfunction phenomenon If the phenomenon is not con firmed first even if you continue your work the vehicle may not be able to return to its normal condi tions The diagnosis through interview is to collect information from the customer before confirming the malfunction phenomena The diagnosis through interview provides very important clues in re producing malfunction phenomena 2 Since
17. nosis function of the immobilizer system is equipped with the battery backup which keeps supplying power for diagnosis memory even when the ignition switch is set to OFF position 21 Bringing malfunctioning vehicle to workshop Y Proceed to 222 gt gt 2 Diagnosis through interview 1 Gather enough information from the customer on conditions environment and phenomenon in which the malfunction took place Y Proceed to 223 2 gt 3 Confirmation and recording of diagnosis code Refer to Page 14 14 SPECIFIED VALUE Code is not displayed Y If itis OK go to 10 Y If itis NG go to D4 224 Erasing of diagnosis code Refer to Page 14 14 Y Proceed to 255 2 gt 5 Basic check 1 Perform the basic check Y Proceed to 226 2 gt 6 Reconfirmation of diagnosis code Refer to Page 14 14 SPECIFIED VALUE Indicates normal code Y If it is OK go to 228 Y If itis NG go to D7 Trouble shooting according to diagnosis code 1 Perform the troubleshooting for the diagnosis code being outputted Refer to Page 14 17 Y Proceed to gt 8 258 Confirmation test 1 Ensure that the malfunction phenomena claimed by the customer concerning the vehicle have been completely solved and that it has been recovered to the normal Y f it is OK finish the troubleshooting Y f itis NG go back to 25 and perform the checks again 14 14 1 7 INQUIRY 1 In an effort to remove causes for malfunction from t
18. r coil P21B5500ES25 14 10 1 3 ARRANGEMENT OF ECU TERMINAL T11B8502816 Immobilizer ECU terminal name Terminal No Terminal code Terminal name 1 B ECU power supply 2 IG IG SW power supply 3 KSW Key SW 4 5 FEM EE 6 Transponder communication 7 GND Earth 8 SIO2 Immobilizer communication 9 SIO Diagnostic tester communication 10 T Diagnostic tester communication 11 m 12 13 GOIL Transponder communication 14 IND Security indicator 14 11 1 4 ARRANGEMENT OF VEHICLE HARNESS SIDE CONNECTOR TERMINALS Immobilizer ECU 1 Es _ Immobilizer coil key switch Engine control computer 11213456 7 8 9 1011 1213 14 15 16 17 18 19 20 2122 23 24 2512627 28 2913031 32 3334 35 36 3738 39 40 Combination meter T11B8503ES20 14 12 1 5 LOCATION OF COMPONENTS P21B5503ES38 The illustration shows a typical example a mmobilizer ECU b Steering column upper W SW bracket EFI ECU d Transponder 14 13 1 6 HOW TO PROCEED WITH TROUBLE SHOOTING 1 The immobilizer system is equipped with a diagnosis function which diagnoses malfunctioning sec tions and gives important clues for troubleshooting 2 The diag
19. the following terminals 1 Transponder key coil vehicle harness side 4 battery positive terminal 2 Transponder key coil vehicle harness side 3 immobilizer ECU vehicle harness side 3 KSW SPECIFIED VALUE Continuity exists Y If it is OK go to D2 Y If it is NG replace harness and connector D2 Key insertion switch check 1 Carry out unit check of the transponder key coil key insertion switch Refer to Page 14 21 SPECIFIED VALUE No abnormality exists Y If itis OK complete the check Y If it is NG replace transponder key coil 14 19 1 9 3 B2795 B2794 NO 21 NO 22 TRANSPONDER COMMUNICATION SYSTEM 1 Checking points 1 Is the registered key use 2 15 key being used correctly 3 Is the immobilizer ECU normal 2 Checking method 221 Operation check with master key 1 Check whether the engine can be started with the master key SPECIFIED VALUE The engine can start Y If it is OK perform the key re registration NOTE e The ID code of the key used has not been registered yet Y If itis NG go to gt 2 222 Check of key use conditions 1 Check to see if the key is used in a wrong way SPECIFIED VALUE Do not use the keys in an overlapped state Use the key correctly Y If it is OK proceed to 223 after replacing the immobilizer ECU Y If it is NG use the key correctly D3 Check of immobilizer ECU operation 1 After the key ID code has been registered on the immo
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