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1. B141848J01 El 9 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM 1 Using an oscilloscope check that a pulse is generated between terminals HINT See page ES 16 for the procedure for checking the power source voltage and the ground Standard Terminal No Terminal Symbols Measurement Condition Standard 117 SIO2 gt 125 E1 Ignition switch OFF gt ON Pulse is generated b Oscilloscope waveform NOTICE The oscilloscope waveform as shown is an example and noise or chattering waveforms are not included 1 Waveform Tester Connection SOL gt El Tool Setting 2 VIDIV 20 msec DIV Measurement Condition Ignition switch OFF gt ON p ECU DATA LIST ACTIVE TEST 1 ECU DATA LIST a Determine if there are any malfunctions using the ECU data list H B103170 function of DS II Standard Transponder key computer assembly Item Symbols Inspection Condition Reference value TEST Terminal T T terminal circuit short open GND OPEN IG IG IG ON ON KEY SW KSW Key inserted in the ignition knob not inserted in the ignition knob ON OFF REQ Permission Signal REQ Request permission signal output in SIO2 Output Stop Transponder Communication TP Main key inserted in the ignition knob not inserted in the ignition knob Mini not Immobiliser Condition IMO Main key
2. 1 Waveform Tester Connection SIO2 gt GND Tool Setting 2 VIDIV 20 msec DIV Measurement Condition Ignition switch OFF ON GND gt H B103170 2 STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEM STEERING COLUMN UPPER BLY Check the i bili tem WITH SWITCH BRACKET ASSEMBLY a Check the immobiliser system M 1 Disconnect the steering column upper with switch bracket assembly connector 2 Measure the continuity between connecter terminals using a tester Standard B143211J01 Terminal No Terminal Symbols Measurement Condition Standard 1 COL gt 2 COL Always Continuity HINT If the result is not as specified the steering column upper with switch bracket assembly may be malfunctioning 3 Using the tester measure the voltage between terminals of the connector on the vehicle side Standard Terminal No Terminal Symbols Measurement Condition Standard 4 gt The body ground Key is inserted in the ignition knob gt Key is not inserted 10 to 14 V gt 1 V or less HINT If the result is not as specified the wire harness on the vehicle side may be malfunctioning 3 ENGINE CONTROL COMPUTER ENGINE ECU a Check the immobiliser system Engine Control Computer Connector A Connector B Connector C Connector D
3. a Check if the ignition switch is turned to the ON position and the engine is started using another key Standard The ignition switch is turned to the ON position and the engine is started REPLACE KEY THAT DOES NOT START ENGINE REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY El 17 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM DTC B2795 21 Main Key ID Code Does Not Match DESCRIPTION The transponder key computer assembly outputs these codes if a malfunction is detected in communication between the transponder key computer assembly and the key DTC No DTC Detection Condition Trouble Area Key B1795 21 Key ID code d t match A rt ores Transponder key computer assembly INSPECTION PROCEDURE Key re registration a Clear DTCs using the DS II b Re register the key c Check that the ignition switch is turned to the ON position and the engine is started using the key Nc gt REPLACE KEY REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM B2796 12 Main Key or Coil Malfunction B2797 24 Immobiliser Communication Malfunction 4 DTC DTC DESCRIPTION Those codes will be output through the transponder key computer assembly if a malfunction occurs due to a defect in the key or the immobiliser in communication El 18 Immobiliser Communication Malfunction 5 DTC No B2796 12 DTC Detection Condition ID code is not sent back Tro
4. Previous DTC History of changed problem parts Installed accessory parts Engine starter genuine parts others Smart system Car navigation genuine parts others Other specified items Others B143390 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 6 CHECK CLEAR DTCs 1 PREPARE FOR INSPECTION a Move the shift lever to the P position b Turn off the air conditioning 2 CHECK DTCs using DS II a Connect the DS II to the DLC b Following the prompts on the screen select DIAGNOSIS IMB DIAGNOSTIC CODE to check DTCs HINT If the check engine warning light remains on wire harness may have a short or pinched or the engine control computer engine ECU may be malfunctioning If the DS Il does not display DTCs or indicate the normal condition and the indicator light does not flash there may be an open in the TC circuit between the DLC connecter and each ECU or the engine control computer engine ECU may be malfunctioning 3 CHECK DTCs using the security indicator light NOTICE Turn the ignition switch to the ON position before reading the DTCs and check that the security indicator light is flashing a Turn the ignition switch off b Using the diagnosis check wire short terminals 13 ECUT and ECUT 4 E of the DLC SST 09843 18040 pep nana napi 10 9 NOTICE AAA sr Do not connect diagnosis check wire
5. inserted in the ignition knob not inserted in the ignition knob UNSET SET Registered Key 4 KKD4 E Unregistered Registered Key 3 USOS g Unregistered Registered Raye KKD2 g Unregistered Key 1 KKD1 Registered Unregistered ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 10 DTC B2780 15 Open in the PUSH or KEY SW circuit DESCRIPTION The transponder key computer assembly outputs this code when KSW signals are not received with the ignition switch on DTC No DTC Detection Condition Trouble Area Wire harness or connector Steering column upper with switch bracket B2780 15 KSW signal is not received with the ignition switch on assembly Transponder key computer assembly Combination meter assembly CIRCUIT DIAGRAM Transponder Key Computer Assembly Steering Column Upper With Combination Meter Assembly Switch Bracket Assembly B143378J01 INSPECTION PROCEDURE KN CHECK WIRE HARNESS AND CONNECTOR POWER SOURCE CIRCUIT CHECK a Insert the key to the ignition knob b Measure the voltage between terminal 4 and the body ground STEERING COLUMN UPPER using the tester WITH SWITCH BRACKET ASSEMBLY sandara 10 to 14 V CHECK AND REPAIR POWER SOURCE CIRCUIT B143211J01 El 11 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM 2 READ DATA USING DS II KEY SW a Connect the DS II to the DLC b Using the DS II fol
6. No 2 to the wrong terminals Doing so may cause malfunctions Useonly dedicated diagnosis check wire c Turn the ignition switch to the ON position and count the number of flashes of the security indicator light E B141833 Abnormal codes 21 and 41 are output 1 1 0 5 seconds l i __ 0 5 seconds I T 1 0 25 seconds M AUTE OFF OFF et La E Tot peer gt 4 seconds 4seconds i 0 5 seconds 2 5 seconds i i Le l i i I i E g 19 seconds Code 41 Repeated Code 21 B141832 HINT Ifthe indicator light does not indicate a DTC light does not come on there may be an open in the TC terminal or the computer may be malfunctioning If the security indicator light remains on the wire harness may have a short circuit pinched or the computer may be malfunctioning EI 7 Transponder Key Computer Assembly ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM f an irrelevant DTC is output the computer may be malfunctioning d Remove the diagnosis check wire 4 CLEAR DTCs a Using the DS II following the prompts on the screen select CHECK DTC and CLEAR to clear the DTCs NOTICE f the DTCs cannot be cleared turn the ignition switch off then perform this procedure again Selecting CLEAR on the ALL DTCs screen clear all system DTCs ECU TERMINALS 1 TRANSPONDER KE
7. when communicating Engine control computer with the engine control computer Transponder key computer assembly The transponder key computer does not receive signals from the engine control s IPS METAS orconnector B2789 42 9 9 Engine control computer computer when communicating with the Transponder key computer assembly engine control computer CIRCUIT DIAGRAM Transponder Key Computer Assembly Engine Control Computer 8 117 SIO2 SIO2 B141860J04 INSPECTION PROCEDURE CHECK WIRE HARNESS AND CONNECTOR a Disconnect the transponder key computer assembly immobiliser ECU connector and the engine control computer engine ECU connector C ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 14 b Using the tester measure the continuity between terminals of the connector on the vehicle wire harness side Standard Prigine Genel Computer Terminal No Terminal Symbols Continuit N SUME TE E Immobilizer ECU gt Engine ECU te 5 E EB EHE E BRE 8 SIO2 117 SIO2 Continuity UP val E REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR Connector C Transponder Key Computer Assembly Vehicle Side Connector SIO2 B143232J01 REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY a Replace the transponder key computer assembly and register the key code b Clear DTCs using t
8. ECK REPAIR OR REPLACE El 5 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM CUSTOMER PROBLEM ANALYSIS CHECK ENGINE IMMOBILISER SYSTEM Check Sheet Customer s Name License Plate No d First registration year 20 m Description of symptoms Date Problem First Occurred Hour of the day AM PM Starting Trouble Problem description Additional key registration not possible Others User L1Constant O Frequent L JOccasional One time only Frequency Problem Occurs During dealer check Constant O Frequent Occasional One time only Date vehicle brought in Security Indicator Illumination Malfunction No longer occurs Cloudy Rainy Snowy Temperature and weather 4 N HIGAS when broblem occurred Temperature Approx yc 2 Weather O Clear Morning driving Restarting the vehicle after driving approx When having starting trouble hours did the vehicle start with another registered key When IG ON does the security indicator turn off Detailed check results Does the engine crank normally when problem occurs Is another key attached to the key being used Immobiliser system DTC EFI system DTC
9. El 1 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM ENGINE IMMOBILISER SYSTEM LOCATION STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY IMMOBILISER COIL NON ROTATION SOLENOID L gt A gt EST 2 Mu 00 E E es N gt gt we ENGINE CONTROL COMPUTER ENGINE ECU y Con EN D TRANSPONDER KEY COMPUTER ASSEMBLY IMMOBILISER ECU B143124J01 DIAGNOSTIC TROUBLE CODE CHART DTC No Diagnostic Item Code Memory See Page B2780 15 Open in the PUSH or KEY SW o El 10 circuit B2788 41 Communication Error code does o El 13 not match B2789 42 Communication Error no o El 13 response ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 2 DTC No Diagnostic Item Code Memory See Page B2793 23 Immobiliser Communication o El 15 Malfunction 1 B2794 22 Immobiliser Communication o El 16 Malfunction 2 B2795 21 Main Key ID Code Does Not o El 17 Match B2796 12 Main Key Or Coil Malfunction O El 18 B2797 24 Immobiliser Communication o El 21 Malfunction 4 B2798 25 rnimpls pis Communication o El 21 Malfunction 5 PROBLEM SYMPTOMS TABLE Symptom Engine does not start 1 Transponder key Suspected Area See Page El 15 El 16 El 18 2 Engine control computer engine ECU El 13 3 Transponder key computer assembly El 10 El 13 El 16 El 18 El 21 4 Steering column upper with swi
10. Y COMPUTER ASSEMBLY IMMOBILISER ECU a Check immobiliser ECU 1 Disconnect the immobiliser ECU connector 2 Using the tester measure the voltage and the continuity between the terminals of the connector on the vehicle side Standard B142045J0 Terminal No Terminal Symbols Item Measurement Condition Standard 7 GND gt Body ground Continuity Always Continuity 1 B lt gt 7 GND Voltage Always 10 to 14 V 2 IG gt 7 GND Voltage Ignition switch OFF ON ioe poit me HINT If the result is not as specified the wire harness on the vehicle side may be malfunctioning 3 Connect the connector 4 Measure the voltage between connecter terminals using the tester 5 Using an oscilloscope check that a pulse is generated between terminals Standard Terminal No Terminal Symbols Measurement Condition Standard 6 COL gt 13 COL Key is not inserted in the ignition knob Key is inserted Pulse is generated 3 KSW gt 7 GND Key is not inserted in the ignition knob gt Key is inserted 1 V or less gt 10 to 14 V 8 SIO2 gt 7 GND Ignition switch OFF ON Pulse is generated HINT If the result is not as specified the transponder key computer assembly may be malfunctioning b Oscilloscope waveform NOTICE The oscilloscope waveform as shown is an example and noise or chattering waveforms are not included ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM EI 8
11. gister the key code b Clear DTCs using the DS II CHECK FOR DTCs a Check for DTCs using the DS II Standard Result Proceed to DTCs B2797 24 and B2798 25 are not A output DTCs B2797 24 and B2798 25 are B output REPLACE STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY TO INDEX TO NEXT SECTION
12. he DS II E CHECK FOR DTCs a Check for DTCs using the DS II Standard Result Proceed to DTCs B2788 41 and B2789 42 are not output A DTCs B2788 41 and B2789 42 are output B REPLACE ENGINE CONTROL COMPUTER El 15 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM DTC B2793 23 Immobiliser Communication Malfunction 1 DESCRIPTION The transponder key computer assembly outputs this code if a problem is detected during key code registration or if the key code is not successfully registered DTC No DTC Detection Condition Trouble Area B2793 23 Trouble in key code registration Key INSPECTION PROCEDURE RE REGISTRATION OF THE KEY THAT DOES NOT START ENGINE a Clear DTCs using the DS II b Re register the key that does not start the engine c Check that the ignition switch is turned to the ON position and the engine is started using the key REPLACE KEY THAT CAUSES B2793 TO BE OUTPUT ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 16 DTC B2794 22 Immobiliser Communication Malfunction 2 DESCRIPTION The transponder key computer assembly outputs these codes if a malfunction is detected in communication between the transponder key computer assembly and the key DTC No DTC Detection Condition Trouble Area Key B2794 22 Code key d t match i ia a Re Transponder key computer assembly INSPECTION PROCEDURE CHECK OPERATION WITH ANOTHER KEY
13. lowing the prompts on the screen select ECU DATA LIST and KEY SW c Check any changes in the switch condition ON or OFF when the key is inserted to the ignition knob Standard m Screen Measurement Condition Display When the key is inserted to the ignition knob ON When the key is not inserted to the ignition knob OFF No gt REPLACE STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY EN CHECK WIRE HARNESS AND CONNECTOR Bracket Assembly Vehicle Side Connector O Combination Meter Assembly Steering Column Upper With Switch B143230J01 a Disconnect the steering column upper with switch bracket assembly and combination meter assembly connectors b Using the tester measure the continuity between terminals of the connector on the vehicle side Standard Terminal No Terminal Symbols Steering Column Upper with Switch Bracket Assembly Continuity Combination Meter Assembly 3 2 B Continuity REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM EB CHECK WIRE HARNESS AND CONNECTOR Disconnect the transponder key computer assembly and the Vehicle Side Connector 8 101112113114 KSW Combination Meter A
14. ponder ECU lt gt Immobiliser Coil y 6 COL gt 1 COL Continuity 13 COL 2 COL Continuity REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 2 CHECK OPERATION WITH ANOTHER KEY RM a Check if the ignition switch is turned to the ON position and the engine is started using another key Standard The ignition switch is turned to the ON position and the engine is started REPLACE KEY THAT DOES NOT START ENGINE L3 REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY v a Replace the transponder key computer assembly and register the key code b Clear DTCs using the DS II ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 20 ES CHECK FOR DTCs a Check for DTCs using the DS II Standard Result Proceed to DTCs B2796 12 B2797 24 and B2798 A 25 are not output DTCs B2796 12 B2797 24 and B2798 B 25 are output REPLACE STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM B2797 24 Immobiliser Communication Malfunction 4 EI 21 B2798 25 Immobiliser Communication Malfunction 5 DESCRIPTION The transponder key computer assembly outputs these codes if a malfunction is detected in communication between the transponder key computer assembly and the steering column upper with switch bracket assembly DTC No DTC Detection Condition Trouble Area Wire harness or connector Transponder key computer assembl
15. ssembly Transponder Key Computer Assembly B143231J01 E a b combination meter assembly connectors El 12 Using the tester measure the continuity between terminals of the connector on the vehicle side Standard Terminal No Terminal Symbols Transponder Key Computer Assembly gt Combination Meter Assembly 3 KSW lt gt 26 KSW Continuity Continuity a b a REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR code Clear DTCs using the DS Il Check for DTCs using the DS Il REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY Replace the transponder key computer assembly and register the key CHECK FOR DTCs Standard Result Proceed to DTC B2780 15 is not output A DTC B2780 15 is output B REPLACE COMBINATION ASSEMBLY METER El 13 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM B2788 41 Communication Error code does not match B2789 42 Communication Error no response DESCRIPTION The transponder key computer assembly outputs these codes if it receives a code unmatched signal when communicating with the engine control computer or if signals are not received from the engine control computer DTC No DTC Detection Condition Trouble Area The transponder key computer receives a Wire harness or connector B2788 41 code unmatched signal
16. tch bracket assembly El 10 El 16 El 18 El 21 5 Wire harness El 10 El 13 El 18 El 21 6 Combination meter assembly El 10 LA HOW TO PROCEED WITH TROUBLESHOOTING EB VEHICLE BROUGHT TO WORKSHOP EN CONDUCT CUSTOMER PROBLEM ANALYSIS AND CHECK SYMPTOMS LA HINT See page El 5 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM EE CHECK FOR DTCs OF EFI engine control system HINT See page ES 8 a Check for DTCs of the EFI system using the DS II El 3 Result Proceed to DTC is not output A DTC is output B GO TO ENGINE CONTROL SYSTEM 4 CHECK FOR DTCs OF IMB ENGINE IMMOBILISER SYSTEM a Using the DS Il check for DTCs see page El 1 Record any DTCs b Delete the DTCs c Reproduce the symptoms based on the recorded code and check if the same DTC is output Result Proceed to DTC is not output A DTC is output B GO TO TROUBLESHOOTING FOR EACH OUTPUT DTC PROBLEM SYMPTOMS TABLE a Check if the symptom is listed in problem symptoms table see page EI 2 Result Proceed to Symptom is not listed in problem symptoms table A Symptom is listed in problem symptoms table B GO TO INSPECTION PROCEDURE 9 El PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM a ECU DATA LIST ACTIVE TEST see page El 9 b ECU terminals See page El 7 ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 4 CH
17. uble Area Wire harness or connector Key Transponder key computer assembly Steering column upper with switch bracket assembly immobiliser coil B2797 24 Transponder communication trouble Wire harness or connector Key Transponder key computer assembly Steering column upper with switch bracket assembly immobiliser coil B2798 25 Complete data is not received within a specified time Wire harness or connector Key Transponder key computer assembly Steering column upper with switch bracket assembly immobiliser coil CIRCUIT DIAGRAM Transponder Key Computer Assembly Steering Column Upper With Switch Bracket Assembly Immobiliser Coil B141956J02 El 19 INSPECTION PROCEDURE ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM EN CHECK WIRE HARNESS AND CONNECTOR Transponder Key Computer Assembly Vehicle Side Connector COL COL Steering Column Upper With Switch Bracket Assembly Vehicle Side Connector COL COL B143233J01 a Disconnect the connectors from the transponder key computer assembly immobiliser ECU and the steering column upper with switch bracket assembly immobiliser ECU b Using the tester measure the continuity between terminals of the connector on the vehicle wire harness side Standard Terminal No Terminal Symbols Continut Trans
18. y Steering column upper with switch bracket assembly B2797 24 Transponder communication trouble Wire harness or connector B2798 25 Complete data is not received within a Transponder key computer assembly specified time Steering column upper with switch bracket assembly CIRCUIT DIAGRAM Transponder Key Computer Assembly Steering Column Upper With Switch Bracket Assembly Immobiliser Coil B141956J02 INSPECTION PROCEDURE EH CHECK WIRE HARNESS AND CONNECTOR a Disconnect the connectors from the transponder key computer assembly and the steering column upper with switch bracket assembly ENGINE IMMOBILISER ENGINE IMMOBILISER SYSTEM El 22 b Using the tester measure the continuity between terminals of the connector on the vehicle wire harness side Standard Transponder Key Computer Assembly Vehicle Side Connector Terminal No Terminal Symbols Immobiliser ECU gt Steering column upper with switch Continuity bracket assembly 6 COL 1 COL Continuity 13 COL gt 2 COL Continuity cot COL REPAIR OR REPLACE WIRE HARNESS OR Steering Column Upper With CONNECTOR Switch Bracket Assembly Vehicle Side Connector COL COL B143233J01 2 REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY a Replace the transponder key computer assembly and re

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