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Contents Wiring diagrams Section: Door Locks & Anti-Theft Systems All sections

Smart Key System (For Entry Function) (Diagnostic Codes & Symptom Tests): Other Toyota Corolla XI

Door Locks & Anti-Theft Systems 7 illustrations ~24161 words

CAUTION / NOTICE / HINT

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The front door outside handle assembly (for front passenger door) has an antenna coil between terminals ANT1 and ANT2.

PROCEDURE

  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)) Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Disconnect the G7 front door outside handle assembly (for front passenger door) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E59-11 (CLG2) - G7-6(ANT1) Always Below 1 ohms E59-10 (CG2B) - G7-3(ANT2) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms G7-2 (GND) - Body ground Always Below 1 ohms E59-11 (CLG2) or G7-6(ANT1) - Body ground Always 10 kohms or higher E59-10 (CG2B) or G7-3(ANT2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO FRONT PASSENGER SIDE ELECTRICAL KEY ANTENNA) Connect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Connect the G7 front door outside handle assembly (for front passenger door) connector. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform 1 *c Waveform 2 - - OK Tester Connection Condition Tool Setting Specified Condition E59-11 (CLG2) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought inside detection area*1 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 1) E59-11 (CLG2) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) E59-10 (CG2B) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) *1: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *2: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 4
  4. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) Temporarily replace the front door outside handle assembly (for front passenger door) with a new or known good one. Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check the DTCs. Body Electrical > Smart Key > Trouble Codes OK DTC B27A2 is not output. Result Proceed to OK NG Result: 1 OK END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The No. 1 indoor electrical key antenna assembly (front floor) has an antenna coil between terminals ANTE5 and CLGB.

  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and No. 1 indoor electrical key antenna assembly (front floor). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR)) Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Disconnect the L19 No. 1 indoor electrical key antenna assembly (front floor) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E59-3 (CLG5) - L19-1 (ANTE5) Always Below 1 ohms E59-2 (CG5B) - L19-3 (CLGB) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms E59-3 (CLG5) or L19-1 (ANTE5) - Body ground Always 10 kohms or higher E59-2 (CG5B) or L19-3 (CLGB) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR)) Connect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Connect the L19 No. 1 indoor electrical key antenna assembly (front floor) connector. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c Door open *d After approximately 30 seconds after door closed OK Tester Connection Condition Tool Setting Specified Condition E59-3 (CLG5) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) E59-2 (CG5B) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 4
  4. REPLACE NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) Temporarily replace the No. 1 indoor electrical key antenna assembly (front floor) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S39908183992014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTC B27A5 is not output. Result Proceed to OK NG Result: 1 OK END (NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The No. 2 indoor electrical key antenna assembly (rear floor) has an antenna coil between terminals ANTE6 and CLGB.

  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (rear floor). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR)) Disconnect the E58 and E57 certification ECU (smart key ECU assembly) connectors. Disconnect the L18 No. 2 indoor electrical key antenna assembly (rear floor) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-11 (CLG6) - L18-1 (ANTE6) Always Below 1 ohms E58-10 (CG6B) - L18-3 (CLGB) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms E58-11 (CLG6) or L18-1 (ANTE6) - Body ground Always 10 kohms or higher E58-10 (CG6B) or L18-3 (CLGB) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR)) Connect the E58 and E57 certification ECU (smart key ECU assembly) connectors. Connect the L18 No. 2 indoor electrical key antenna assembly (rear floor) connector. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c Door open *d After approximately 30 seconds after door closed OK Tester Connection Condition Tool Setting Specified Condition E58-11 (CLG6) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) E58-10 (CG6B) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 4
  4. REPLACE NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) Temporarily replace the No. 2 indoor electrical key antenna assembly (rear floor) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S41127897202014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK. DTC B27A6 is not output. Result Proceed to OK NG Result: 1 OK END (NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The electrical key antenna (outside luggage compartment) has an antenna coil between terminals ANTE8 and CLGB.

  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and electrical key antenna (outside luggage compartment). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT)) Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L16 electrical key antenna (outside luggage compartment) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-2 (CLG8) - L16-1 (ANTE8) Always Below 1 ohms E58-1 (CG8B) - L16-2 (CLGB) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms E58-2 (CLG8) or L16-1 (ANTE8) - Body ground Always 10 kohms or higher E58-1 (CG8B) or L16-2 (CLGB) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. INSPECT ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT) Remove the electrical key antenna (outside luggage compartment). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S31252006722014070300000) *a Component without harness connected (Electrical Key Antenna (Outside Luggage Compartment)) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (ANTE8) - 2 (CLGB) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S31252006722014070300000) Result: 1 OK See step 4
  4. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTC B27A8 is not output. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S31252006722014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The front door outside handle assembly (for driver door) has an antenna coil between terminals ANT1 and ANT2.

  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver door). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR)) Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Disconnect the H7 front door outside handle assembly (for driver door) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E59-12 (CLG1) - H7-6 (ANT1) Always Below 1 ohms E59-13 (CG1B) - H7-3 (ANT2) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms H7-2 (GND) - Body ground Always Below 1 ohms E59-12 (CLG1) or H7-6 (ANT1) - Body ground Always 10 kohms or higher E59-13 (CG1B) or H7-3 (ANT2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO DRIVER SIDE ELECTRICAL KEY ANTENNA) Connect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Connect the H7 front door outside handle assembly (for driver door) connector. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform 1 *c Waveform 2 - - OK Tester Connection Condition Tool Setting Specified Condition E59-12 (CLG1) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought inside detection area*1 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 1) E59-12 (CLG1) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) E59-13 (CG1B) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) *1: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *2: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 4
  4. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) Temporarily replace the front door outside handle assembly (for driver door) with a new or known good one. Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTC B27A1 is not output. Result Proceed to OK NG Result: 1 OK END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The No. 3 indoor electrical key antenna assembly (inside luggage compartment) has an antenna coil between terminals ANTE7 and CLGB.

Scheme 192

Scheme 192: PROCEDURE
Scheme 192: PROCEDURE
  1. CHECK CONNECTOR CONNECTION Turn the engine switch off. Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and No. 3 indoor electrical key antenna assembly (inside luggage compartment). OK Connectors are properly connected. Result Proceed to OK NG Result: 2 NG CONNECT CONNECTORS PROPERLY Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT)) Disconnect the E58 and E57 certification ECU (smart key ECU assembly) connectors. Disconnect the L40 No. 3 indoor electrical key antenna assembly (inside luggage compartment) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-9 (CLG7) - L40-1 (ANTE7) Always Below 1 ohms E58-8 (CG7B) - L40-3 (CLGB) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms E58-9 (CLG7) or L40-1 (ANTE7) - Body ground Always 10 kohms or higher E58-8 (CG7B) or L40-3 (CLGB) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT)) Connect the E57 and E58 certification ECU (smart key ECU assembly) connectors. Connect the L40 No. 3 indoor electrical key antenna assembly (inside luggage compartment) connector. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c Before driver door lock sensor touched *d After driver door lock sensor touched OK Tester Connection Condition Tool Setting Specified Condition E58-9 (CLG7) - E57-11 (E) Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) E58-8 (CG7B) - E57-11 (E) Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform 2) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 4
  4. REPLACE NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT) Temporarily replace the No. 3 indoor electrical key antenna assembly (inside luggage compartment) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S01038564272014070300000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CLEAR DTC Clear the DTCs. Body Electrical > Smart Key > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTC B27A7 is not output. Result Proceed to OK NG Result: 1 OK END (NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The door control receiver has a constant voltage (5 V) supply circuit connected to terminal "+5".

Scheme 193

Scheme 193: PROCEDURE
Scheme 193: PROCEDURE

Scheme 194

Scheme 194
Scheme 194

Scheme 195

Scheme 195
Scheme 195

Scheme 196

Scheme 196
Scheme 196
  1. INSPECT BATTERY VOLTAGE Measure the voltage of the vehicle battery. Standard Voltage 11 to 14 V HINT: It may be possible to tell whether the vehicle battery is discharged by operating the horn. If the voltage is below 11 V, recharge or replace the vehicle battery before proceeding to the next step. Result Proceed to NEXT Result: 1 NEXT See step 2
  2. CHECK FOR DTC Open the driver door using the mechanical key built into the electrical key transmitter sub-assembly. Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTCs are not output. Result Proceed to OK NG Result: 2 NG GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]»(ref-635436-S23611357552014070300000) Result: 1 OK See step 3
  3. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 4
  4. CHECK KEY DIAGNOSTIC MODE Check the following antennas in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) HINT: Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. Check the electrical key antenna (for driver door): When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for driver door), check that the wireless door lock buzzer sounds. *a 0.7 to 1 m (2.30 to 3.28 ft.) Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the electrical key antenna (for front passenger door): *a 0.7 to 1 m (2.30 to 3.28 ft.) When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 1 indoor electrical key antenna (front floor): *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 2 indoor electrical key antenna (rear floor): *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the electrical key antenna (outside luggage compartment): *a 0.7 to 1 m (2.30 to 3.28 ft.) When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage compartment), check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) OK Wireless door lock buzzer sounds. Result Result Proceed to Diagnostic mode inspections fail for both channels A Diagnostic mode inspections succeed for both channels B Diagnostic mode inspection succeeds for only one of the channels C Result: 2 B See step 11 Result: 3 C See step 10 Result: 1 A See step 5
  5. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Check if there is another electrical key transmitter sub-assembly available that is already registered to the vehicle. Result Result Proceed to Another registered electrical key transmitter sub-assembly is not available A Another registered electrical key transmitter sub-assembly is available B Result: 2 B See step 7 Result: 1 A See step 6
  6. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY) Register a new electrical key transmitter sub-assembly. HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 7
  7. CHECK ENTRY DOOR LOCK OPERATION Using another registered electrical key transmitter sub-assembly, check if an entry lock/unlock operation can be performed twice in succession. OK Entry lock/unlock operate normally. Result Proceed to OK NG Result: 2 NG See step 11 Result: 1 OK See step 8
  8. CHECK TRANSMITTER BATTERY Check the transmitter battery level of the electrical key transmitter sub-assembly that was checked first. Press and hold the lock switch of the transmitter for 5 seconds and check the number of times that the electrical key transmitter sub-assembly LED illuminates. HINT: The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is being used. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low Battery" item of the Data List when this voltage information indicates 2.2 V or less. Refer to «DATA LIST / ACTIVE TEST [08/2013 - ]»(ref-635436-S13844987652014070300000) Even if the transmitter battery is depleted, it is still possible to start the engine by holding the electrical key transmitter sub-assembly near the engine switch, depressing the brake*1 or clutch pedal*2 pedal and pressing the engine switch. *1: except Manual Transaxle *2: for Manual Transaxle Result Result Proceed to Electrical key transmitter sub-assembly LED does not illuminate when switch is pressed and held A Electrical key transmitter sub-assembly LED illuminates 3 times or more when switch is pressed and held B Electrical key transmitter sub-assembly LED illuminates once or twice but not a third time C Result: 2 B REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Result: 3 C REPLACE TRANSMITTER BATTERY. Refer to «REPLACEMENT [08/2013 - ]»(ref-635697-S32428481792014070300000) Result: 1 A See step 9
  9. INSPECT TRANSMITTER BATTERY (VOLTAGE) Inspect the transmitter battery. Remove the transmitter battery from the electrical key transmitter sub-assembly that does not operate. Refer to «REPLACEMENT [08/2013 - ]»(ref-635697-S32428481792014070300000) Attach a lead wire (0.60 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative terminal. NOTE: Do not wrap the lead wire around a terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the transmitter battery will not be able to be installed correctly. *a Lead Wire Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery. Measure the voltage of the transmitter battery. HINT: When measuring the transmitter battery voltage, bring the electrical key transmitter sub-assembly within the lock entry operating range while operating the lock sensor of a door handle to perform the measurement. Perform the measurement when the key is at room temperature. The key sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. When this voltage is 2.2 V or less the Data List item "Key Low Battery" displays "Yes". Refer to «DATA LIST / ACTIVE TEST [08/2013 - ]»(ref-635436-S13844987652014070300000) Standard Voltage Tester Connection Condition Specified Condition Transmitter battery positive (+) - Transmitter battery negative (-) Engine switch off, all doors closed and lock sensor touched 2.3 to 3.2 V *a GND Result Proceed to OK NG Result: 1 OK REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Result: 2 NG REPLACE TRANSMITTER BATTERY. Refer to «REPLACEMENT [08/2013 - ]»(ref-635697-S32428481792014070300000)
  10. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly that was checked first near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck the key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) HINT: When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK AFFECTED BY WAVE INTERFERENCE Result: 2 NG See step 23
  11. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly near the door control receiver and perform a wireless and entry function operation check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) HINT: When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. OK Wireless and entry functions operate normally. Result Proceed to OK NG Result: 1 OK AFFECTED BY WAVE INTERFERENCE Result: 2 NG See step 12
  12. SYSTEM CHECK Check the system provided. Result Result Proceed to w/ Tire Pressure Warning System A w/o Tire Pressure Warning System B Result: 2 B See step 15 Result: 1 A See step 13
  13. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Data List. Read the Data List according to the display on the Techstream. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Body Electrical > Power Source Control > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Power Supply Condition Power supply state All OFF, ACC ON, IG1 ON, IG2 ON or ST ON ALL OFF: Engine switch off (ACC and IG) ACC ON: Engine switch on (ACC) (ACC relay on) IG1 ON: Engine switch on (IG) (IG1 relay on) IG2 ON: Engine switch on (IG) (IG2 relay on) ST ON: Sending engine start request signal Since the IG1 and IG2 relays turn on at approximately the same time, IG1 ON may not be displayed (the IG1 relay turns on for a very short time). Body Electrical > Power Source Control > Data List Tester Display Power Supply Condition Measure the voltage while checking the Data List on the Techstream. Standard Voltage Tester Connection Condition Specified Condition E59-6 (IG1D) - Body ground Engine switch off Below 1 V Engine switch on (ACC) Below 1 V Engine switch on (IG) 9 V or higher E57-9 (IG2D) - Body ground Engine switch off Below 1 V Engine switch on (ACC) Below 1 V Engine switch on (IG) 9 V or higher E59-4 (ACCD) - Body ground Engine switch off Below 1 V Engine switch on (IG) 9 V or higher Engine switch on (ACC) 9 V or higher HINT: Using the Techstream, measure the voltage while confirming the power source mode on the Data List. Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 14
  14. READ VALUE USING TECHSTREAM (IGNITION SWITCH) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Ignition Switch Engine switch on (IG) OFF or ON OFF: Engine switch off ON: Engine switch on (IG) Displays whether the IG power source signal input is on or off. Use this Data List item to help determine the cause when all smart key system/wireless functions do not operate. If the electrical key transmitter sub-assembly is brought inside the vehicle and the engine switch is pressed twice without depressing the brake pedal*1 or clutch pedal*2, the engine switch will turn on (IG). At this time, the key ID code transmitted from the electrical key transmitter sub-assembly and the key ID code stored in the certification ECU (smart key ECU assembly) are compared, and the S code stored in the certification ECU (smart key ECU assembly) and the code stored in the ID code box (Immobilizer code ECU) are compared, and if all codes match, the power source mode is considered on (IG) at that time. *1: except Manual Transaxle *2: for Manual Transaxle Body Electrical > Smart Key > Data List Tester Display Ignition Switch Result Proceed to OK NG Result: 2 NG CHECK RELAY CONTACT SIDE CIRCUIT Result: 1 OK See step 15
  15. READ VALUE USING TECHSTREAM (ACC SW, IG SW) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note ACC SW Engine switch status OFF or ON OFF: Engine switch off ON: Engine switch on (ACC) "ON" is displayed even though the engine switch is on (IG). IG SW Engine switch status OFF or ON OFF: Engine switch off ON: Engine switch on (IG) "OFF" is displayed even though the engine switch is on (ACC). Body Electrical > Main Body > Data List Tester Display ACC SW IG SW OK The Techstream display changes correctly in response to the engine switch operation. Result Proceed to OK NG Result: 2 NG TROUBLESHOOT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «TERMINALS OF ECU [08/2013 - ]»(ref-635436-S01053747492014070300000) Result: 1 OK See step 16
  16. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BATTERY AND BODY GROUND) Disconnect the E57 certification ECU (smart key ECU assembly) connector. *a Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E57-11 (E) - Body ground Always Below 1 ohms Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition E57-10 (CUTB) - Body ground Always 11 to 14 V E57-2 (+B) - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 17
  17. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER) w/o Tire Pressure Warning System Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L48 door control receiver connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-5 (RCO) - L48-4 (+5) Always Below 1 ohms E58-17 (RDAM) - L48-5 (DATA) Always Below 1 ohms E58-6 (CSEL) - L48-2 (CSEL) Always Below 1 ohms E58-5 (RCO) or L48-4 (+5) - Body ground Always 10 kohms or higher E58-17 (RDAM) or L48-5 (DATA) - Body ground Always 10 kohms or higher E58-6 (CSEL) or L48-2 (CSEL) - Body ground Always 10 kohms or higher w/ Tire Pressure Warning System Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L52 door control receiver connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-5 (RCO) - L52-10 (+5) Always Below 1 ohms E58-17 (RDAM) - L52-9 (DATA) Always Below 1 ohms E58-6 (CSEL) - L52-6 (CSEL) Always Below 1 ohms E58-5 (RCO) or L52-10 (+5) - Body ground Always 10 kohms or higher E58-17 (RDAM) or L52-9 (DATA) - Body ground Always 10 kohms or higher E58-6 (CSEL) or L52-6 (CSEL) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 18
  18. CHECK DOOR CONTROL RECEIVER Connect the L48*1 or L52*2 door control receiver connector. *A w/o Tire Pressure Warning System *B w/ Tire Pressure Warning System *a Component with harness connected (Door Control Receiver) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L48-1 (GND)*1 - Body ground Always Below 1 ohms L52-12 (GND)*2 - Body ground *1: w/o Tire Pressure Warning System *2: w/ Tire Pressure Warning System Result Result Proceed to OK A NG (w/o Tire Pressure Warning System) B NG (w/ Tire Pressure Warning System) C Result: 3 B REPLACE DOOR CONTROL RECEIVER. Refer to «REMOVAL [08/2013 - ]»(ref-635693-S02347501432014070300000) Result: 4 C REPLACE ELECTRICAL KEY AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to «REMOVAL [08/2013 - ]»(ref-635692-S07298116022014070300000) Result: 1 A See step 19
  19. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) w/o Tire Pressure Warning System Connect the E57 and E58 certification ECU (smart key ECU assembly) connectors. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Door Control Receiver) Standard Voltage Tester Connection Condition Specified Condition L48-4 (+5) - L48-1 (GND) Procedure: Engine switch off Electrical key transmitter sub-assembly switch not pressed Below 1 V Procedure: Engine switch off Electrical key transmitter sub-assembly switch pressed 4.5 to 5.5 V L48-2 (CSEL) - L48-1 (GND) Engine switch off and all doors closed Below 1 V --> 4.5 to 6.5 V --> Below 1 V w/ Tire Pressure Warning System Connect the E58 certification ECU (smart key ECU assembly) connector. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Door Control Receiver) Standard Voltage Tester Connection Condition Specified Condition L52-10 (+5) - L52-12 (GND) Procedure: Engine switch off Electrical key transmitter sub-assembly switch not pressed Below 1 V Procedure: Engine switch off Electrical key transmitter sub-assembly switch pressed 4.5 to 5.5 V L52-6 (CSEL) - L52-12 (GND) Engine switch off and all doors closed Below 1 V --> 4.5 to 6 V --> Below 1 V L52-1 (IG) - L52-12 (GND) Engine switch on (IG) 10 to 16 V Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 20
  20. CHECK DOOR CONTROL RECEIVER Using an oscilloscope, check the waveform. *A w/o Tire Pressure Warning System *B w/ Tire Pressure Warning System *a Component with harness connected (Door Control Receiver) *b Waveform *c Before lock or unlock button of electrical key transmitter sub-assembly pressed *d After lock or unlock button of electrical key transmitter sub-assembly pressed OK Tester Connection Condition Tool Setting Specified Condition L48-5 (DATA) - L48-1 (GND)*1 Procedure: Engine switch off All doors locked Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area Lock or unlock button of electrical key transmitter sub-assembly not pressed --> pressed 5 V/DIV., 500 ms/DIV. Pulse generation (See waveform) L52-9 (DATA) - L52-12 (GND)*2 *1: w/o Tire Pressure Warning System *2: w/ Tire Pressure Warning System Result Result Proceed to OK A NG (w/o Tire Pressure Warning System) B NG (w/ Tire Pressure Warning System) C Result: 2 B REPLACE DOOR CONTROL RECEIVER. Refer to «REMOVAL [08/2013 - ]»(ref-635693-S02347501432014070300000) Result: 3 C REPLACE ELECTRICAL KEY AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to «REMOVAL [08/2013 - ]»(ref-635692-S07298116022014070300000) Result: 1 A See step 21
  21. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 22
  22. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM Check that the wireless door lock functions operate normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635434-S05584240822014070300000) OK Wireless door lock function operates normally. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635627-S03921509152014070300000)
  23. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Check if there is another electrical key transmitter sub-assembly available that is already registered to the vehicle. Result Result Proceed to Another registered electrical key transmitter sub-assembly is not available A Another registered electrical key transmitter sub-assembly is available B Result: 2 B See step 25 Result: 1 A See step 24
  24. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY) Register a new electrical key transmitter sub-assembly. HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 25
  25. CHECK KEY DIAGNOSTIC MODE Bring another registered electrical key transmitter sub-assembly near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) HINT: When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE) Result: 2 NG See step 26
  26. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - DOOR CONTROL RECEIVER) w/o Tire Pressure Warning System Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L48 door control receiver connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-6 (CSEL) - L48-2 (CSEL) Always Below 1 ohms E58-6 (CSEL) or L48-2 (CSEL) - Body ground Always 10 kohms or higher w/ Tire Pressure Warning System Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L52 door control receiver connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-6 (CSEL) - L52-6 (CSEL) Always Below 1 ohms E58-6 (CSEL) or L52-6 (CSEL) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 27
  27. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) w/o Tire Pressure Warning System Connect the E58 certification ECU (smart key ECU assembly) connector. Connect the L48 door control receiver connector. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Door Control Receiver) Standard Voltage Tester Connection Condition Specified Condition L48-2 (CSEL) - L48-1 (GND) Engine switch off and all doors closed Below 1 V --> 4.5 to 6 V --> Below 1 V w/ Tire Pressure Warning System Connect the E58 certification ECU (smart key ECU assembly) connector. Connect the L52 door control receiver connector. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Door Control Receiver) Standard Voltage Tester Connection Condition Specified Condition L52-6 (CSEL) - L52-12 (GND) Engine switch off and all doors closed Below 1 V --> 4.5 to 6.5 V --> Below 1 V Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 28
  28. CHECK DOOR CONTROL RECEIVER Using an oscilloscope, check the waveform. HINT: Inspection should be performed while the electrical key antenna check in key diagnostic mode is being performed on the failed channel (the channel in which the buzzer did not sound). *A w/o Tire Pressure Warning System *B w/ Tire Pressure Warning System *a Component with harness connected (Door Control Receiver) *b Waveform *c Before lock or unlock button of electrical key transmitter sub-assembly pressed *d After lock or unlock button of electrical key transmitter sub-assembly pressed OK Tester Connection Condition Tool Setting Specified Condition L48-5 (DATA) - L48-1 (GND)*1 Procedure: Engine switch off All doors locked Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area Lock or unlock button of electrical key transmitter sub-assembly not pressed --> pressed 5 V/DIV., 500 ms/DIV. Pulse generation (See waveform) L52-9 (DATA) - L52-12 (GND)*2 *1: w/o Tire Pressure Warning System *2: w/ Tire Pressure Warning System Result Result Proceed to OK A NG (w/o Tire Pressure Warning System) B NG (w/ Tire Pressure Warning System) C Result: 3 B REPLACE DOOR CONTROL RECEIVER. Refer to «REMOVAL [08/2013 - ]»(ref-635693-S02347501432014070300000) Result: 2 C REPLACE ELECTRICAL KEY AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to «REMOVAL [08/2013 - ]»(ref-635692-S07298116022014070300000) Result: 1 A See step 29
  29. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 30
  30. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM Check that the wireless door lock function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635434-S05584240822014070300000) OK Wireless door lock function operates normally. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635627-S03921509152014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  1. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes OK DTCs are not output. Result Proceed to OK NG Result: 2 NG GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]»(ref-635436-S23611357552014070300000) Result: 1 OK See step 2
  2. CHECK WAVE ENVIRONMENT Move the electrical key transmitter sub-assembly as described below and perform the operation inspection. HINT: When the electrical key transmitter sub-assembly is brought near each front door outside handle assemblies or electrical key antenna (outside luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. The transmitting wave of the wireless function and entry function are the same, but the wave logic is different. As a result, it is possible that only the wireless function or only the entry function is affected by wave interference. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly (for driver door) and perform a driver door entry lock and unlock operation check. *a Approximately 0.3 m (0.984 ft.) HINT: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly (for front passenger door) and perform a front passenger door entry lock and unlock operation check. *a Approximately 0.3 m (0.984 ft.) HINT: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage compartment) and perform a luggage door open function check. *a Approximately 0.3 m (0.984 ft.) HINT: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle. Result Result Proceed to All operation checks fail A All operation checks are normal B Some operation checks are normal C Result: 2 B AFFECTED BY WAVE INTERFERENCE Result: 3 C GO TO OTHER PROBLEM (PROCEED TO PROBLEM SYMPTOMS TABLE FOR EACH DOOR). Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000) Result: 1 A See step 3
  3. CHECK KEY DIAGNOSTIC MODE Check the following antennas in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. HINT: If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. Check the electrical key antenna (for driver door): When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for driver door), check that the wireless door lock buzzer sounds. *a 0.7 to 1 m (2.30 to 3.28 ft.) Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the electrical key antenna (for front passenger door): When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds. *a 0.7 to 1 m (2.30 to 3.28 ft.) Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the electrical key antenna (outside luggage compartment): *a 0.7 to 1 m (2.30 to 3.28 ft.) When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage compartment), check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 1 indoor electrical key antenna (front floor): *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 2 indoor electrical key antenna (rear floor): *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 3 indoor electrical key antenna (inside luggage compartment): *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) OK Wireless door lock buzzer sounds. Result Result Proceed to All diagnostic mode inspections fail A Some diagnostic mode inspections fail (door) B Some diagnostic mode inspections fail (interior) C Some diagnostic mode inspections fail (outside luggage compartment) D All diagnostic mode inspections are normal E Result: 2 B GO TO OTHER PROBLEM (PROCEED TO PROBLEM SYMPTOM TABLE FOR EACH DOOR). Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000) Result: 3 C GO TO OTHER PROBLEM. Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000) Result: 4 D GO TO OTHER PROBLEM. Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000) Result: 5 E REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 A See step 4
  4. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Check if there is another electrical key transmitter sub-assembly available that is already registered to the vehicle. Result Result Proceed to Another registered electrical key transmitter sub-assembly is not available A Another registered electrical key transmitter sub-assembly is available B Result: 2 B See step 6 Result: 1 A See step 5
  5. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY) Register a new electrical key transmitter sub-assembly. HINT: Refer to registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK ENTRY DOOR LOCK OPERATION Check the operation of the entry lock function. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Entry lock function operates normally. Result Proceed to OK NG Result: 1 OK END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. READ VALUE USING TECHSTREAM (FL DOOR LOCK POS) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note FL Door Lock Pos Front door LH unlock detection switch signal LOCK or UNLOCK LOCK: Front door LH locked UNLOCK: Front door LH unlocked - Body Electrical > Main Body > Data List Tester Display FL Door Lock Pos OK The Techstream display changes correctly in response to the lock/unlock operation of the front LH door. Result Proceed to OK NG Result: 2 NG GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit). Refer to «Door Unlock Detection Switch Circuit [08/2013 - ]»(ref-635439-S28551199352014070300000) Result: 1 OK See step 3
  3. READ VALUE USING TECHSTREAM (D-DOOR TOUCH SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG) Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note D-Door Touch Sensor Driver door touch sensor (unlock sensor) OFF or ON OFF: Driver door touch sensor (unlock sensor) not touched ON: Driver door touch sensor (unlock sensor) touched Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate. Body Electrical > Smart Key > Data List Tester Display D-Door Touch Sensor OK The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for driver door). Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 4
  4. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the H7 front door outside handle assembly (for driver door) connector. Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H7-4 (SENS) - E59-22 (SEN1) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms H7-4 (SENS) or E59-22 (SEN1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) (DRIVER DOOR UNLOCK SENSOR SIGNAL INPUT) Connect the H7 front door outside handle assembly (for driver door) connector. Connect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c In actuality, sampling is being performed - - OK Tester Connection Condition Tool Setting Specified Condition E59-22 (SEN1) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Driver door unlock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR). Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. READ VALUE USING TECHSTREAM (FR DOOR LOCK POS) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note FR Door Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked UNLOCK: Front door RH unlocked - Body Electrical > Main Body > Data List Tester Display FR Door Lock Pos OK The Techstream display changes correctly in response to the lock/unlock operation of the front RH door. Result Proceed to OK NG Result: 2 NG GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit). Refer to «Door Unlock Detection Switch Circuit [08/2013 - ]»(ref-635439-S28551199352014070300000) Result: 1 OK See step 3
  3. READ VALUE USING TECHSTREAM (P-DOOR TOUCH SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note P-Door Touch Sensor Front passenger door touch sensor (unlock sensor) ON or OFF ON: Front passenger door touch sensor (unlock sensor) touched OFF: Front passenger door touch sensor (unlock sensor) not touched Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate. Body Electrical > Smart Key > Data List Tester Display P-Door Touch Sensor OK The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door). Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 4
  4. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the G7 front door outside handle assembly (for front passenger door) connector. Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G7-4 (SENS) - E59-23 (SEN2) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms G7-4 (SENS) or E59-23 (SEN2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) (FRONT PASSENGER DOOR UNLOCK SENSOR SIGNAL INPUT) Connect the G7 front door outside handle assembly (for front passenger door) connector. Connect the E57 and E59 certification ECU (smart key ECU assembly) connectors. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c In actuality, sampling is being performed - - OK Tester Connection Condition Tool Setting Specified Condition E59-23 (SEN2) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Front passenger door unlock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR). Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

HINT

  1. If the driver door entry lock and unlock functions do not operate, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
  2. If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.

Body Electrical > Smart Key > Utility

Tester Display
Communication Check(Key Diag Mode)
Parameter NameCause of Problem and Countermeasure
Lock / Key RF Signal InterferenceWhen entry lock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. If the cause of the malfunction has not been stored but the car has been moved and an entry lock operation has been successfully performed, the possibility of wave interference is high.
Unlock / Key RF Signal InterferenceWhen entry unlock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. If the cause of the malfunction has not been stored but the car has been moved and an entry unlock operation has been successfully performed, the possibility of wave interference is high.

RADIO WAVE INTERFERENCE

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly (for driver door) and perform an entry function check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *a Approximately 0.3 m (0.984 ft.) HINT: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. Result Result Proceed to Entry function does not operate normally A Entry function operates normally B Result: 2 B AFFECTED BY WAVE INTERFERENCE Result: 1 A See step 3
  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the H7 front door outside handle assembly (for driver door) connector. Disconnect the E59 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H7-3 (ANT2) - E59-13 (CG1B) Always Below 1 ohms H7-6 (ANT1) - E59-12 (CLG1) Always Below 1 ohms H7-5 (B) - E59-19 (POS1) Always Below 1 ohms H7-2 (GND) - Body ground Always Below 1 ohms H7-3 (ANT2) or E59-13 (CG1B) - Body ground Always 10 kohms or higher H7-6 (ANT1) or E59-12 (CLG1) - Body ground Always 10 kohms or higher H7-5 (B) or E59-19 (POS1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO DRIVER DOOR ELECTRICAL KEY ANTENNA) Connect the E59 certification ECU (smart key ECU assembly) connector. *a Front view of wire harness connector (to Front Door Outside Handle Assembly (for Driver Door)) *b Waveform Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition H7-5 (B) - H7-2 (GND) Engine switch off --> on (IG) 9 to 14 V --> Below 2 V Using an oscilloscope, check the waveform. OK Tester Connection Condition Tool Setting Specified Condition H7-3 (ANT2) - H7-6 (ANT1) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 5
  5. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) Temporarily replace the front door outside handle assembly (for driver door) with a new or known good one. Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000) Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) (OPERATION) Check that the entry function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Entry function operates normally. Result Proceed to OK NG Result: 1 OK END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". When the entry lock and unlock functions do not operate for doors other than the driver door and if the engine switch has not been turned on (IG) for 14 days or more, lock/unlock the doors using the wireless door lock function or key linked unlock operation and then check if the entry door lock and unlock functions operate.

HINT

  1. If the front passenger door entry lock and unlock functions do not operate, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
  2. If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.

Body Electrical > Smart Key > Utility

Tester Display
Communication Check(Key Diag Mode)
Parameter NameCause of Problem and Countermeasure
Lock / Key RF Signal InterferenceWhen entry lock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. If the cause of the malfunction has not been stored but the car has been moved and an entry lock operation has been successfully performed, the possibility of wave interference is high.
Unlock / Key RF Signal InterferenceWhen entry unlock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. If the cause of the malfunction has not been stored but the car has been moved and an entry unlock operation has been successfully performed, the possibility of wave interference is high.

RADIO WAVE INTERFERENCE

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly (for front passenger door) and perform an entry function check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *a Approximately 0.3 m (0.984 ft.) HINT: If the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the door handle, communication may not be possible. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. Result Result Proceed to Entry function does not operate normally A Entry function operates normally B Result: 2 B AFFECTED BY WAVE INTERFERENCE Result: 1 A See step 3
  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the G7 front door outside handle assembly (for front passenger door) connector. Disconnect the E59 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G7-3 (ANT2) - E59-10 (CG2B) Always Below 1 ohms G7-6 (ANT1) - E59-11 (CLG2) Always Below 1 ohms G7-5 (B) - E59-21 (POS2) Always Below 1 ohms G7-2 (GND) - Body ground Always Below 1 ohms G7-3 (ANT2) or E59-10 (CG2B) - Body ground Always 10 kohms or higher G7-6 (ANT1) or E59-11 (CLG2) - Body ground Always 10 kohms or higher G7-5 (B) or E59-21 (POS2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (FRONT PASSENGER DOOR LOCK SENSOR SIGNAL INPUT) Connect the E59 certification ECU (smart key ECU assembly) connector. *a Front view of wire harness connector (to Front Door Outside Handle Assembly (for Front Passenger Door)) *b Waveform Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition G7-5 (B) - G7-2 (GND) Engine switch off --> on (IG) 9 to 14 V --> Below 2 V Using an oscilloscope, check the waveform. OK Tester Connection Condition Tool Setting Specified Condition G7-3 (ANT2) - G7-6 (ANT1) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area All doors locked through wireless operation 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 5
  5. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) Temporarily replace the front door outside handle assembly (for front passenger door) with a new or known good one. Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000) Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) (OPERATION) Check that the entry function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Entry function operates normally. Result Proceed to OK NG Result: 1 OK END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to OPERATION CHECK [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

Scheme 197

Scheme 197: PROCEDURE
Scheme 197: PROCEDURE
  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. READ VALUE USING TECHSTREAM (D-DOOR TRIGGER SWITCH) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note D-Door Trigger Switch Driver door touch sensor (lock sensor) OFF or ON OFF: Driver door touch sensor (lock sensor) not touched ON: Driver door touch sensor (lock sensor) touched Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate. Body Electrical > Smart Key > Data List Tester Display D-Door Trigger Switch OK The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for driver door). Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 3
  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the H7 front door outside handle assembly (for driver door) connector. Disconnect the E59 and E57 certification ECU (smart key ECU assembly) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H7-1 (TRG+) - E59-20 (TSW1) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms H7-1 (TRG+) or E59-20 (TSW1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) (DRIVER DOOR LOCK SENSOR SIGNAL INPUT) Connect the H7 front door outside handle assembly (for driver door) connector. Connect the E59 and E57 certification ECU (smart key ECU assembly) connectors. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c In actuality, sampling is being performed - - OK Tester Connection Condition Tool Setting Specified Condition E59-20 (TSW1) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Driver door lock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR). Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635433-S08631172122014070300000) OK Door locks operate normally. Result Proceed to OK NG Result: 2 NG GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635433-S41111594162014070300000) Result: 1 OK See step 2
  2. READ VALUE USING TECHSTREAM (P-DOOR TRIGGER SWITCH) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note P-Door Trigger Switch Front passenger door touch sensor (lock sensor) OFF or ON OFF: Front passenger door touch sensor (lock sensor) not touched ON: Front passenger door touch sensor (lock sensor) touched Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate. Body Electrical > Smart Key > Data List Tester Display P-Door Trigger Switch OK The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door). Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 3
  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the G7 front door outside handle assembly (for front passenger door) connector. Disconnect the E59 and E57 certification ECU (smart key ECU assembly) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G7-1 (TRG+) - E59-8 (TSW2) Always Below 1 ohms E57-11 (E) - Body ground Always Below 1 ohms G7-1 (TRG+) or E59-8 (TSW2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) (FRONT PASSENGER DOOR LOCK SENSOR SIGNAL INPUT) Connect the G7 front door outside handle assembly (for front passenger door) connector. Connect the E59 and E57 certification ECU (smart key ECU assembly) connectors. Using an oscilloscope, check the waveform. *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) *b Waveform *c In actuality, sampling is being performed - - OK Tester Connection Condition Tool Setting Specified Condition E59-8 (TSW2) - E57-11 (E) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Front passenger door lock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR). Refer to «DISASSEMBLY [08/2013 - ]»(ref-635639-S35990891242014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation". The indoor electrical key antenna assemblies each have an antenna coil between each two CLG terminals. The door control receiver is also related to interior verification.

HINT

  1. If the room oscillator does not recognize, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
  2. If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.
Parameter NameCause of Problem and Countermeasure
Operating Engine Switch / Key RF Signal InterferenceWhen the engine switch was operated, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1). If the cause of the malfunction has not been stored but any devices that can cause wave interference in the cabin have been removed and the room oscillator successfully recognizes the key, the possibility of wave interference is high.

RADIO WAVE INTERFERENCE

  1. CHECK ENTRY DOOR LOCK OPERATION Check that the entry lock and unlock functions operate for each door. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) HINT: If the door control receiver is defective, code verification does not begin in the cabin and the entry lock and unlock functions do not operate. OK All door entry lock and unlock functions operate normally. Result Proceed to OK NG Result: 2 NG GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Result: 1 OK See step 2
  2. CHECK PUSH-BUTTON START FUNCTION Remove the transmitter battery of the electrical key transmitter sub-assembly. *1 Engine Switch *2 Electrical Key Transmitter Sub-assembly Refer to «REPLACEMENT [08/2013 - ]»(ref-635697-S32428481792014070300000) With the brake pedal*1 or clutch pedal*2 depressed, face the logo side of the electrical key transmitter sub-assembly towards the engine switch, hold the transmitter near the engine switch and then press the engine switch. *1: except Manual Transaxle *2: for Manual Transaxle When operating the engine switch, check whether the engine starts. HINT: When the electrical key transmitter sub-assembly cannot be verified even though it is inside the detection area, the engine start check can be performed by removing the transmitter battery from the electrical key transmitter sub-assembly and holding the electrical key transmitter sub-assembly near the engine switch. If the engine cannot be started when performing this inspection, the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) may be malfunctioning. OK Engine starts. Result Proceed to OK NG Result: 2 NG GO TO SMART KEY SYSTEM (FOR START FUNCTION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635437-S09235026852014070300000) Result: 1 OK See step 3
  3. CHECK WAVE ENVIRONMENT Install the transmitter battery to the electrical key transmitter sub-assembly. Refer to «REPLACEMENT [08/2013 - ]»(ref-635697-S32428481792014070300000) Bring the electrical key transmitter sub-assembly near the No. 1 indoor electrical key antenna assembly (front floor) and perform an smart key system check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) NOTE: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the No. 1 indoor electrical key antenna assembly (front floor). Bring the electrical key transmitter sub-assembly near the No. 2 indoor electrical key antenna assembly (rear floor) and perform an smart key system check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) HINT: Check that the customize setting "Ignition Available Area" is set to "All". NOTE: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the No. 2 indoor electrical key antenna assembly (rear floor). HINT: As the effect of wave interference decreases by moving the electrical key transmitter sub-assembly close to each indoor electrical key antenna assembly, it may be possible to check whether wave interference is the cause of the problem. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. Result Result Proceed to System cannot be operated A System can be operated B Result: 2 B AFFECTED BY WAVE INTERFERENCE Result: 1 A See step 4
  4. CHECK KEY DIAGNOSTIC MODE Check the following antennas in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. HINT: If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. Check the No. 1 indoor electrical key antenna assembly (front floor). *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Check the No. 2 indoor electrical key antenna assembly (rear floor). *a Inspection Point When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) OK Wireless door lock buzzer sounds. Result Result Proceed to Front floor operation check failed A Rear floor operation check failed B All operation checks are normal C Result: 2 B See step 9 Result: 4 C REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 A See step 5
  5. CHECK HARNESS AND CONNECTOR (NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the L19 No. 1 indoor electrical key antenna assembly (front floor) connector. Disconnect the E59 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L19-1 (ANTE5) - E59-3 (CLG5) Always Below 1 ohms L19-3 (CLGB) - E59-2 (CG5B) Always Below 1 ohms L19-1 (ANTE5) or E59-3 (CLG5) - Body ground Always 10 kohms or higher L19-3 (CLGB) or E59-2 (CG5B) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 6
  6. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR)) Disconnect the L19 No. 1 indoor electrical key antenna assembly (front floor) connector. *a Front view of wire harness connector (to No. 1 Indoor Electrical Key Antenna Assembly (Front Floor)) *b Waveform *c Door open *d After approximately 30 seconds after door closed Connect the E59 certification ECU (smart key ECU assembly) connector. Using an oscilloscope, check the waveform. OK Tester Connection Condition Tool Setting Specified Condition L19-1 (ANTE5) - L19-3 (CLGB) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 7
  7. REPLACE NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) Temporarily replace the No. 1 indoor electrical key antenna assembly (front floor) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S39908183992014070300000) Result Proceed to NEXT Result: 1 NEXT See step 8
  8. CHECK KEY DIAGNOSTIC MODE Check the following antenna in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) *a Inspection Point HINT: If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. Check the No. 1 indoor electrical key antenna assembly (front floor). When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK END (NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)
  9. CHECK HARNESS AND CONNECTOR (NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the L18 No. 2 indoor electrical key antenna assembly (rear floor) connector. Disconnect the E58 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L18-1 (ANTE6) - E58-11 (CLG6) Always Below 1 ohms L18-3 (CLGB) - E58-10 (CG6B) Always Below 1 ohms L18-1 (ANTE6) or E58-11 (CLG6) - Body ground Always 10 kohms or higher L18-3 (CLGB) or E58-10 (CG6B) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 10
  10. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR)) Disconnect the L18 No. 2 indoor electrical key antenna assembly (rear floor) connector. *a Front view of wire harness connector (to No. 2 Indoor Electrical Key Antenna Assembly (Rear floor)) *b Waveform *c Door open *d After approximately 30 seconds after door closed Connect the E58 certification ECU (smart key ECU assembly) connector. Using an oscilloscope, check the waveform. OK Tester Connection Condition Tool Setting Specified Condition L18-1 (ANTE6) - L18-3 (CLGB) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 11
  11. REPLACE NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) Temporarily replace the No. 2 indoor electrical key antenna assembly (rear floor) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S41127897202014070300000) Result Proceed to NEXT Result: 1 NEXT See step 12
  12. CHECK KEY DIAGNOSTIC MODE Check the following antenna in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel. Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) *a Inspection Point HINT: If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. Check the No. 2 indoor electrical key antenna assembly (rear floor). When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK END (NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

HINT

  1. If the entry luggage compartment door open function does not operate, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
  2. If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.

Body Electrical > Smart Key > Utility

Tester Display
Communication Check(Key Diag Mode)
Parameter NameCause of Problem and Countermeasure
Operating Trunk Switch / Key RF Signal InterferenceWhen entry luggage compartment door open operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1). If the cause of the malfunction has not been stored but the car has been moved and an entry luggage compartment door open function operation has been successfully performed, the possibility of wave interference is high.

RADIO WAVE INTERFERENCE

Scheme 198

Scheme 198: PROCEDURE
Scheme 198: PROCEDURE
  1. READ VALUE USING TECHSTREAM (TRUNK OPEN MODE) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Trunk Open Mode Luggage compartment door opening operation OFF or ON Customize setting status displayed - Body Electrical > Smart Key > Data List Tester Display Trunk Open Mode Result Result Proceed to Trunk open mode is ON A Trunk open mode is OFF B Result: 2 B PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters). Refer to «CUSTOMIZE PARAMETERS [08/2013 - ]»(ref-635436-S35765981882014070300000) Result: 1 A See step 2
  2. READ VALUE USING TECHSTREAM (TR/B-DOOR UNLOCK SW) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Tr/B-Door Unlock SW Luggage electrical key switch OFF or ON OFF: Luggage electrical key switch not pushed ON: Luggage electrical key switch pushed Displays whether the luggage electrical key switch is on or off. Use this Data List item to help determine if there is a switch malfunction when the luggage compartment door open function does not operate. Body Electrical > Smart Key > Data List Tester Display Tr/B-Door Unlock SW OK The Techstream display changes correctly in response to the operation of the luggage electrical key switch. Result Proceed to OK NG Result: 2 NG See step 12 Result: 1 OK See step 3
  3. PERFORM ACTIVE TEST USING TECHSTREAM (TRUNK AND BACK-DOOR OPEN) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. According to the display on the Techstream, perform the Active Test. Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note Trunk and Back-Door Open Operate luggage compartment door lock motor OFF/ON - Body Electrical > Main Body > Active Test Tester Display Trunk and Back-Door Open OK Luggage compartment door lock motor operates. Result Proceed to OK NG Result: 2 NG See step 8 Result: 1 OK See step 4
  4. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage compartment) and perform an entry luggage compartment open function check. *a Approximately 0.3 m (0.984 ft.) HINT: Communication may not be possible if the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the rear bumper. When the electrical key transmitter sub-assembly is brought near the electrical key antenna (outside luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference. Result Proceed to OK NG OK Entry function operates normally. Result: 1 OK AFFECTED BY WAVE INTERFERENCE Result: 2 NG See step 5
  5. CHECK KEY DIAGNOSTIC MODE Check the following antenna in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Body Electrical > Smart Key > Utility Tester Display Communication Check(Key Diag Mode) Select either channel 1 or channel 2 and inspect using key diagnostic mode for each channel. *a 0.7 to 1 m (2.30 to 3.28 ft.) When the electrical key transmitter sub-assembly is held at the same height as the rear bumper upper surface, align it with the center of the rear of the vehicle and check that the wireless door lock buzzer sounds. HINT: Hold the electrical key transmitter sub-assembly at the same height as the rear bumper upper surface and align it with the center of the rear of the vehicle (0.7 to 1 m (2.30 to 3.28 ft.)). Make sure that the direction of the electrical key transmitter sub-assembly is as shown in the illustration. If the buzzer sounds, it can be determined that the luggage compartment exterior transmitter is operating normally. If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 6
  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT)) Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L16 electrical key antenna (outside luggage compartment) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-1 (CG8B) - L16-2 (CLGB) Always Below 1 ohms E58-2 (CLG8) - L16-1 (ANTE8) Always Below 1 ohms E58-1 (CG8B) or L16-2 (CLGB) - Body ground Always 10 kohms or higher E58-2 (CLG8) or L16-1 (ANTE8) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 7
  7. INSPECT ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT) Remove the electrical key antenna (outside luggage compartment). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S31252006722014070300000) *a Component without harness connected (Electrical Key Antenna (Outside Luggage Compartment)) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (ANTE8) - 2 (CLGB) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S31252006722014070300000)
  8. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Remove the luggage compartment door lock assembly. Refer to «REMOVAL [08/2013 - ]»(ref-635689-S10573098142014070300000) Inspect the luggage compartment door lock assembly. Refer to «INSPECTION [08/2013 - ]»(ref-635689-S26567104772014070300000) Result Proceed to OK NG Result: 2 NG REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY. Refer to «REMOVAL [08/2013 - ]»(ref-635689-S10573098142014070300000) Result: 1 OK See step 9
  9. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY) Luggage compartment door lock motor: Disconnect the 3E driver side junction block assembly connector. Disconnect the L29 luggage compartment door lock assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3E-37 (TR+) - L29-1 (ACT+) Always Below 1 ohms 3E-37 (TR+) or L29-1 (ACT+) - Body ground Always 10 kohms or higher L29-2 (E) - Body ground Always Below 1 ohms Luggage door courtesy light switch: Disconnect the 3E driver side junction block assembly connector. Disconnect the L29 luggage compartment door lock assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3E-38 (LGCY) - L29-3 (D+) Always Below 1 ohms 3E-38 (LGCY) or L29-3 (D+) - Body ground Always 10 kohms or higher L29-2 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 10
  10. REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY Temporarily replace the driver side junction block assembly with a new one. Refer to «REMOVAL [08/2013 - ]»(ref-635627-S03921509152014070300000) Result Proceed to NEXT Result: 1 NEXT See step 11
  11. CHECK OPERATION Check that the luggage compartment door entry unlock function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Luggage compartment door entry unlock function operates normally. Result Proceed to OK NG Result: 1 OK END (DRIVER SIDE JUNCTION BLOCK ASSEMBLY WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635627-S03921509152014070300000)
  12. INSPECT LUGGAGE ELECTRICAL KEY SWITCH Remove the luggage electrical key switch. Refer to «REMOVAL [08/2013 - ]»(ref-635639-S07025797552014070300000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Luggage Electrical Key Switch) Standard Resistance Tester Connection Condition Specified Condition 2 (E) - 1 (UL) Luggage electrical key switch not pushed 10 kohms or higher 2 (E) - 1 (UL) Luggage electrical key switch pushed Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE LUGGAGE ELECTRICAL KEY SWITCH. Refer to «REMOVAL [08/2013 - ]»(ref-635639-S07025797552014070300000) Result: 1 OK See step 13
  13. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - LUGGAGE ELECTRICAL KEY SWITCH) Disconnect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L34 luggage electrical key switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-27 (TSW5) - L34-1 (UL) Always Below 1 ohms E58-27 (TSW5) or L34-1 (UL) - Body ground Always 10 kohms or higher L34-2 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Check that there are no electrical key transmitter sub-assemblies in the vehicle. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2013 - ] Before replacing the certification ECU (smart key ECU assembly), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  1. CHECK ENTRY FUNCTION (ENTRY LUGGAGE DOOR OPEN FUNCTION) Check that the entry luggage door open function operates. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Result Result Proceed to Luggage door open function operates A Luggage door open function does not operate B Result: 2 B GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table). Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000) Result: 1 A See step 2
  2. CHECK WAVE ENVIRONMENT Bring the electrical key transmitter sub-assembly near the No. 3 indoor electrical key antenna assembly (inside luggage compartment), and check that the key lock-in prevention function operates. *a Inspection Point HINT: Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle. If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check. OK Entry function operates normally. Result Proceed to OK NG Result: 1 OK AFFECTED BY WAVE INTERFERENCE Result: 2 NG See step 3
  3. CHECK KEY DIAGNOSTIC MODE Check the following antenna in key diagnostic mode. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Select either channel 1 or channel 2 and inspect using key diagnostic mode for each channel. *a Inspection Point Check the No. 3 indoor electrical key antenna assembly (inside luggage compartment): When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless buzzer sounds. HINT: If the buzzer sounds, it can be determined that the No. 3 indoor electrical key antenna assembly (inside luggage compartment) is operating normally. If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference. OK Wireless door lock buzzer sounds. Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG See step 4
  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT)) Disconnect the E58 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E58-9 (CLG7) - L40-1 (ANTE7) Always Below 1 ohms E58-8 (CG7B) -L40-3 (CLGB) Always Below 1 ohms E58-9 (CLG7) or L40-1 (ANTE7) - Body ground Always 10 kohms or higher E58-8 (CG7B) or L40-3 (CLGB) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Connect the E58 certification ECU (smart key ECU assembly) connector. Disconnect the L40 No. 3 indoor electrical key antenna assembly (inside luggage compartment) connector. Using an oscilloscope, check the waveform. OK Tester Connection Condition Tool Setting Specified Condition L40-1 (ANTE7) - L40-3 (CLGB) Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched 2 V/DIV., 500 ms/DIV. Pulse generation (See waveform) Front view of wire harness connector *a Front view of wire harness connector (to No. 3 Indoor Electrical Key Antenna Assembly (Inside Luggage Compartment)) *b Waveform *c Before driver door lock sensor touched *d After driver door lock sensor touched Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 6
  6. REPLACE NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT) Temporarily replace the No. 3 indoor electrical key antenna assembly (inside luggage compartment) with a new or known good one. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S01038564272014070300000) Result Proceed to NEXT Result: 1 NEXT See step 7
  7. CHECK NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT) Check that the key lock-in prevention function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Key lock-in prevention function operates normally. Result Proceed to OK NG Result: 1 OK END (NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE COMPARTMENT) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]

  1. CHECK ENTRY DOOR LOCK OPERATION (OPERATION) Check that the entry function operates normally. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) OK Entry function operates normally. Result Proceed to OK NG Result: 1 OK GO TO METER / GAUGE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635440-S29828934222014070300000) Result: 2 NG GO TO OTHER PROBLEM. Refer to «PROBLEM SYMPTOMS TABLE [08/2013 - ]»(ref-635436-S32400603432014070300000)

Note. If registration of an electrical key transmitter sub-assembly is not possible, first confirm the procedure by immobilizer system. Refer to REGISTRATION [08/2013 - ] A new registration mode can be entered only when no electrical key transmitter sub-assemblies are stored in the certification ECU (smart key ECU assembly). The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the electrical key transmitter sub-assembly, certification ECU (smart key ECU assembly), steering lock ECU (steering lock actuator assembly) or ID code box (immobilizer code ECU), refer to smart key system (for Entry Function) Precaution. Refer to PRECAUTION [08/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

  1. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes NOTE: If a malfunction occurs, do not remove/install the vehicle battery before checking for DTCs. OK DTCs are not output. Result Proceed to OK NG Result: 2 NG GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]»(ref-635436-S23611357552014070300000) Result: 1 OK See step 2
  2. READ VALUE USING TECHSTREAM (NUMBER OF REGISTERED KEY CODES) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Number of Registered Key Codes Number of registered electrical key transmitter sub-assembly 0 to 8 Number of registered electrical key transmitter sub-assembly Up to 7 electrical key transmitter sub-assemblies can be registered Body Electrical > Smart Key > Data List Tester Display Number of Registered Key Codes HINT: A new certification ECU (smart key ECU assembly) will be have no electrical key transmitter sub-assemblies registered. OK "0" is displayed in the Techstream display. Result Proceed to OK NG Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 1 OK See step 3
  3. READ VALUE USING TECHSTREAM (OPERATION HISTORY LIST) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Utility / Operation History / Certification ECU Log of ID code registration. Body Electrical > Smart Key > Utility Tester Display Operation History Check the freeze frame data and follow the instructions in the step column of the table below. Certification ECU Log of ID code registration Parameter Name Detection Condition Trouble Area Proceed to Failed Registration Mode A registration request was sent while in another mode. During registration a different registration request was sent. - A Vehicle ID not set A vehicle ID has not been registered in the certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) B Key Registration Max A registration request is sent when the maximum number of electrical key transmitter sub-assemblies has already been registered. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) C ID-BOX Error A registration request is sent even though whether the vehicle is provided with an ID code box is unknown. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) D Vehicle Speed Too High (This applies only when registration fails even though the vehicle is stationary. Make sure that the vehicle is stationary first.) A registration request is sent with a vehicle speed of 5 km/h (3.11 mph) or more. Certification ECU (smart key ECU assembly) E No ECU Response The steering lock ECU (steering lock actuator assembly) was not connected. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) Steering lock ECU (steering lock actuator assembly) F L Code Verification Error The L codes registered in the ID code box (immobilizer code ECU) and steering lock ECU (steering lock actuator assembly) did not match. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) Steering lock ECU (steering lock actuator assembly) G L Code OK S Code NG The L code verification was successful but the S code stored in the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) did not match. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) C Key Verification: Max Number The number of electrical key transmitter sub-assemblies registered in the ID code box (immobilizer code ECU) was more than 7. ID code box (immobilizer code ECU) H Key Verification: Amp Abnormal Malfunction of the immobilizer amplifier, such as a short to ground. Certification ECU (smart key ECU assembly) Engine switch I Key Verification: Read Error Although a registered electrical key transmitter sub-assembly was held near the engine switch, immobilizer system certification did not succeed. Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly J Unverified Key Although all of the registered electrical key transmitter sub-assemblies had been held near the engine switch, electrical key transmitter sub-assembly registration was not possible due to immobilizer system certification not being able to succeed. Certification ECU (smart key ECU assembly) K Transponder Key Amp Error Malfunction of the immobilizer amplifier, such as a short to ground. Certification ECU (smart key ECU assembly) Engine switch I New Key Registration Error Although an unregistered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration is not possible due to immobilizer system certification not being able to succeed. Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly L New Key Vehicle ID Error Although an unregistered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration is not possible due to the vehicle ID not being stored successfully. Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly L New Key Registration Failed After successful immobilizer system certification, time expired before smart recognition completion confirmation or a registration cancellation request was sent. Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly L New Key Already Registered Although a registered electrical key transmitter sub-assembly was held near the engine switch, time expired or a registration cancellation request was sent. Certification ECU (smart key ECU assembly) M New Key ID Code Error Electrical key transmitter sub-assembly registration was not possible due to the certification ECU (smart key ECU assembly) not being able to store the information of the electrical key transmitter sub-assembly to EEPROM correctly. Certification ECU (smart key ECU assembly) B No Response Registering L/S Code The certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly) was not connected. Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) Steering lock ECU (steering lock actuator assembly) F S Code Verification NG The S code could not be stored by the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU). Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) C L Code Verification NG The L code could not be stored by the steering lock ECU (steering lock actuator assembly) or ID code box (immobilizer code ECU). Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) Steering lock ECU (steering lock actuator assembly) G ECU ID Verification Error The code received from the ID code box (immobilizer code ECU) when the S code is registered does not match the code of the certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) C Key Number Write Error The certification ECU (smart key ECU assembly) could not store the number of electrical key transmitter sub-assemblies to EEPROM. Certification ECU (smart key ECU assembly) B ID Code BOX Write Error The certification ECU (smart key ECU assembly) could not store the information of whether the ID code box was provided in the vehicle to EEPROM. Certification ECU (smart key ECU assembly) B Result: 8 B REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 9 C See step 5 Result: 10 D CHECK FOR DTC B2789. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635671-S21721299832014070300000) Result: 2 E See step 6 Result: 11 F CHECK FOR DTC B2785. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635671-S21721299832014070300000) Result: 3 G See step 7 Result: 12 H REPLACE ID CODE BOX (IMMOBILIZER CODE ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S03438666092014070300000) Result: 13 I CHECK FOR DTC B278A or B2784. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635450-S20094149402014070300000) Result: 4 J See step 9 Result: 6 K See step 13 Result: 14 L See step 15 Result: 15 M NEW KEY REGISTRATION FAILED, CHECK THE KEY Check if a registered electrical key transmitter sub-assembly was held near the engine switch instead of an unregistered electrical key transmitter sub-assembly by mistake. Perform registration again using an unregistered electrical key transmitter sub-assembly. If the same problem occurs again, replace the certification ECU (smart key ECU assembly). Result: 1 A See step 4
  4. CHECK REGISTRATION MODE Make sure that another mode or different registration mode is not selected. HINT: If any mode has been selected, it is necessary to cancel the mode. OK Another mode or a different registration mode is not selected. Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REREGISTRATION. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000)
  5. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU. HINT: For replacement. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) For registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK Registration to the new certification ECU (smart key ECU assembly) has completed successfully. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE ID CODE BOX (IMMOBILIZER CODE ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S03438666092014070300000)
  6. READ VALUE USING TECHSTREAM (VEHICLE SPEED METER) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Combination Meter / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Combination Meter > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Vehicle Speed Meter Vehicle speed 0 to 255 Almost the same as actual vehicle speed - Body Electrical > Combination Meter > Data List Tester Display Vehicle Speed Meter OK "0 km/h (0 mph)" is displayed when the vehicle is stationary. Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG GO TO METER / GAUGE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635440-S29828934222014070300000)
  7. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU. HINT: For replacement. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) For registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK Registration to the new certification ECU (smart key ECU assembly) has completed successfully. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG See step 8
  8. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Temporarily replace the steering lock ECU (steering lock actuator assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU. HINT: For replacement. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) For registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK Registration to the new steering lock ECU (steering lock actuator assembly) has completed successfully. Result Proceed to OK NG Result: 1 OK END (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE ID CODE BOX (IMMOBILIZER CODE ECU). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S03438666092014070300000)
  9. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Make sure that a registered electrical key transmitter sub-assembly is used. OK A registered electrical key transmitter sub-assembly is used. Result Proceed to OK NG Result: 2 NG USE A REGISTERED ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY AND PERFORM REREGISTRATION. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result: 1 OK See step 10
  10. CHECK NUMBER OF REGISTERED ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLIES Check the number of registered electrical key transmitter sub-assemblies. Result Result Proceed to When only 1 electrical key transmitter sub-assembly is registered A When 2 or more electrical key transmitter sub-assemblies are registered B Result: 1 A See step 12 Result: 2 B See step 11
  11. REREGISTRATION Reregister the electrical key transmitter sub-assemblies using different order combinations. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) HINT: If there are 2 or more electrical key transmitter sub-assemblies, make sure that the number of order combinations is the same as the number of electrical key transmitter sub-assemblies so that each transmitter can be checked first. EXAMPLE: WHEN THERE ARE 3 REGISTERED ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLIES (A, B AND C). Combination Order* 1 A --> B --> C 2 B --> C--> A 3 C --> A --> B *: Except the first electrical key transmitter sub-assembly, the remaining electrical key transmitter sub-assemblies can be checked in any order. OK "Key Verification: Read Error" is not displayed. Result Proceed to OK NG Result: 1 OK REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY HELD WHEN "Key Verification: Read Error" WAS DETECTED WAS DEFECTIVE) Result: 2 NG See step 12
  12. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU. HINT: For replacement. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) For registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK Registration to the new certification ECU (smart key ECU assembly) has completed successfully. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
  13. CHECK FOR ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Check that all registered electrical key transmitter sub-assemblies are available. OK No registered electrical key transmitter sub-assemblies are missing. Result Proceed to OK NG Result: 2 NG ERASE ALL REGISTERED ELECTRICAL KEY TRANSMITTERS EXCEPT ONE, THEN REGISTER THE REMAINING ELECTRICAL KEY TRANSMITTERS. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result: 1 OK See step 14
  14. REREGISTRATION Reregister the electrical key transmitter sub-assemblies using different order combinations. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) HINT: If there are 2 or more electrical key transmitter sub-assemblies, make sure that the number of order combinations is the same as the number of electrical key transmitter sub-assemblies so that each transmitter can be checked first. EXAMPLE: WHEN THERE ARE 3 REGISTERED ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLIES (A, B AND C). Combination Order* 1 A --> B --> C 2 B --> C--> A 3 C --> A --> B *: Except the first electrical key transmitter sub-assembly, the remaining electrical key transmitter sub-assemblies can be checked in any order. OK "Key Verification: Read Error" is not displayed. Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) Result: 2 NG REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY HELD WHEN "Key Verification: Read Error" WAS DETECTED WAS DEFECTIVE)
  15. REREGISTRATION Using an unregistered electrical key transmitter sub-assembly, register the ID. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK The key ID can be registered. Result Proceed to OK NG Result: 1 OK END (ELECTRICAL KEY TRANSMITTER WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000)

Note. If registration of an electrical key transmitter sub-assembly is not possible, first confirm the procedure by immobilizer system. Refer to REGISTRATION [08/2013 - ] The smart key system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Before replacing the certification ECU (smart key ECU assembly), steering lock ECU (steering lock actuator assembly) or electrical key transmitter sub-assembly, refer to smart key system (for Entry Function) Precaution.

HINT

When additional registration is not possible, some freeze frame data may be stored in the certification ECU (smart key ECU assembly).

If freeze frame data is available, it can be helpful in determining whether any parts were malfunctioning or not or narrowing down the suspected areas based on the table below.

Parameter NameCause of Problem and Countermeasure
Failed Registration ModeMake sure that another mode or a different registration mode is not selected, and then restart registration.
Key Registration MaxThe registration was not possible because the maximum number of the electrical key transmitter sub-assemblies has already been registered to the certification ECU (smart key ECU assembly). If a new electrical key transmitter sub-assembly needs to be registered, such as when one of the registered electrical key transmitter sub-assemblies has been lost, erase an unnecessary ID code first.
Key Verification: Amp AbnormalAlthough a registered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration could not be confirmed due to a malfunction of the immobilizer amplifier, such as a short to ground. DTC B278A or B2784 was stored.
Key Verification: Read ErrorA registered electrical key transmitter sub-assembly was not held near the engine switch properly or electrical key transmitter sub-assembly registration cannot be confirmed due to wave interference, etc. Reregister the electrical key transmitter sub-assembly using the correct procedure or use another registered electrical key transmitter sub-assembly.
Transponder Key Amp AbnormalAlthough an unregistered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration cannot be completed due to a malfunction of the immobilizer amplifier, such as a short to ground. DTC B278A or B2784 was stored.
New Key Registration ErrorAn unregistered electrical key transmitter sub-assembly was not held near the engine switch properly or electrical key transmitter sub-assembly registration cannot be confirmed due to a malfunction, such as wave interference. Reregister the electrical key transmitter sub-assembly using the correct procedure or use another registered electrical key transmitter sub-assembly.
New Key Vehicle ID ErrorAlthough the vehicle ID stored in the certification ECU (smart key ECU assembly) should be registered to the electrical key transmitter sub-assembly during electrical key transmitter sub-assembly registration, it was not successful. Use another unregistered electrical key transmitter sub-assembly for registration.
New Key Registration FailedAlthough an unregistered electrical key transmitter sub-assembly was held near the engine switch for registration, electrical key transmitter sub-assembly registration was not successful due to wave interference (such as radio waves emitted from a device in the cabin) or a low transmitter battery.
New Key Already RegisteredAs a registered electrical key transmitter sub-assembly was held near the engine switch by mistake, electrical key transmitter sub-assembly registration was not successful. Using an unregistered electrical key transmitter sub-assembly, perform the registration procedure again.
New Key ID Code ErrorReplace the certification ECU (smart key ECU assembly).
New Key Information AbnormalThe ID code of an electrical key transmitter sub-assembly could not be registered to the certification ECU (smart key ECU assembly). If 2 electrical key transmitter sub-assemblies are held near the engine switch at the same time, incorrect registration information will be stored in the certification ECU (smart key ECU assembly), suspending registration. Reregister the electrical key transmitter sub-assembly using the correct registration procedure.

CERTIFICATION ECU LOG OF ID CODE REGISTRATION

Body Electrical > Smart Key > Utility

Tester Display
Operation History
  1. CHECK FOR DTC Check for DTCs. Body Electrical > Smart Key > Trouble Codes NOTE: If a malfunction occurs, do not remove/install the vehicle battery before checking for DTCs. OK DTCs are not output. Result Proceed to OK NG Result: 2 NG GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]»(ref-635436-S23611357552014070300000) Result: 1 OK See step 2
  2. CHECK STEERING LOCK SYSTEM Check that the steering unlocks. Refer to «SYSTEM DESCRIPTION [08/2013 - ]»(ref-635670-S35112621822014070300000) HINT: Check that the communication between the steering lock ECU (steering lock actuator assembly) and certification ECU (smart key ECU assembly) is normal. OK The steering unlocks. Result Proceed to OK NG Result: 2 NG GO TO STEERING LOCK SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]»(ref-635670-S06260758792014070300000) Result: 1 OK See step 3
  3. REGISTRATION Using other unregistered electrical key transmitter sub-assemblies, perform the additional registration procedure. OK Additional registration can be completed. Result Proceed to OK NG Result: 1 OK REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (FIRST REGISTERED KEY WAS DEFECTIVE). Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) Result: 2 NG See step 4
  4. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU. HINT: For replacement. Refer to «REMOVAL [08/2013 - ]»(ref-635673-S33087994032014070300000) For registration. Refer to «REGISTRATION [08/2013 - ]»(ref-635449-S41259747962014070300000) OK The key ID can be registered. Result Proceed to OK NG Result: 1 OK END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) Result: 2 NG GO TO OTHER PROBLEM (New key cannot be Registered). Refer to «New Key cannot be Registered [08/2013 - ]»(ref-635690-S33535657012014070300000)

More articles — Smart Key System (For Entry Function) (Diagnostic Codes & Symptom Tests)