METER / GAUGE SYSTEM, Diagnostic DTC:B1507, B1508

DTC Code DTC Name
B1507 Open in Turn Signal Circuit
B1508 Short in Turn Signal / Hazard Flasher Circuit

DESCRIPTION

These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, or a short in a turn signal light circuit or the hazard warning light circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B1507 Open in Turn Signal Circuit

When IG voltage is 9.5 V or more and the following condition is detected:


  • Open in turn signal light circuit

  • LED

  • Harness or connector

  • Instrument panel junction block assembly

  • Front multiplex network door ECU LH

  • Front multiplex network door ECU RH

  • Combination meter assembly

 DTC stored -
B1508 Short in Turn Signal / Hazard Flasher Circuit

When IG voltage is 9.5 V or more and the following condition is detected:


  • Short in turn signal light circuit or hazard warning light circuit

  • LED

  • Harness or connector

  • Instrument panel junction block assembly

  • Front multiplex network door ECU LH

  • Front multiplex network door ECU RH

  • Combination meter assembly

 DTC stored -

WIRING DIAGRAM

B002EO4E03
B002D7AE01

CAUTION / NOTICE / HINT

Note

Inspect the LEDs for this system before performing the following procedure.

Side turn signal light assembly: Click here

Rear combination light assembly: Click here

PROCEDURE


  1. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      All RH turn signal lights or all LH turn signal lights do not blink. A
      RH side turn signal light does not illuminate. B
      LH side turn signal light does not illuminate. C

    B

    CHECK TURN SIGNAL LIGHTS (RH SIDE) Click here

    C

    CHECK TURN SIGNAL LIGHTS (LH SIDE) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND)


    1. RH side


      1. Disconnect the K32 combination meter assembly connector.

      2. Disconnect the 5B cowl side junction block LH connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        K32-7 (LR) - 5B-3 Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        K32-7 (LR) - Body ground Always 10 kΩ or higher

    2. LH side


      1. Disconnect the K32 combination meter assembly connector.

      2. Disconnect the 5B cowl side junction block LH connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        K32-13 (LL) - 5B-4 Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        K32-13 (LL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK TURN SIGNAL LIGHTS (RH SIDE)


    1. Turn the engine switch on (IG).

    2. Set the headlight dimmer switch assembly to the right turn switch position.

    3. Check the operation of the turn signal lights (RH side).

      Result
      Result Proceed to
      Front turn signal light assembly (RH side) does not blink. A
      Side turn signal light assembly (RH side) does not blink. B
      Rear turn signal light assembly (RH side) does not blink. C

    B

    CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    A

  4. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND)


    1. Disconnect the A30 headlight assembly RH connector.

    2. Disconnect the 5D cowl side junction block LH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A30-11 (TNS) - 5D-8 Always Below 1 Ω
      A30-12 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A30-11 (TNS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. Remove the cowl side junction block LH.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      B002EO2C01
      *a

      Component without harness connected

      (Cowl Side Junction Block LH)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      5B-3 - 5D-8 Always Below 1 Ω
      Result
      Result Proceed to
      OK (w/ Canister Pump Module) A
      OK (w/o Canister Pump Module) B
      NG C

    B

    INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    C

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

    A

  6. INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH


    1. Remove the Headlight ECU sub-assembly RH.

      Click here

    2. B002CA6C04
      *a

      Component without harness connected

      (Headlight ECU sub-assembly RH)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A30-11 (TNS) - B-10 (TURN+) Always Below 1 Ω
      A30-12 (GND) - B-13 (TURN-) Always Below 1 Ω
      A30-11 (TNS) - A30-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT UNIT ASSEMBLY RH Click here

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here

  7. INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH


    1. Remove the Headlight ECU sub-assembly RH.

      Click here

    2. B002CA6C04
      *a

      Component without harness connected

      (Headlight ECU sub-assembly RH)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A30-11 (TNS) - B-10 (TURN+) Always Below 1 Ω
      A30-12 (GND) - B-13 (TURN-) Always Below 1 Ω
      A30-11 (TNS) - A30-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    OK

  8. REPLACE FRONT TURN SIGNAL LIGHT ASSEMBLY RH


    1. Replace the front turn signal light assembly RH with a new or known good one.

      Click here

    2. Check for DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    A

    REPLACE HEADLIGHT UNIT ASSEMBLY RH Click here

    B

    END

  9. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND)


    1. Disconnect the N24 front multiplex network door ECU RH connector.

    2. Disconnect the 5A cowl side junction block LH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      N24-20 (TRNI) - 5A-12 Always Below 1 Ω
      N24-1 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      5A-12 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - SIDE TURN SIGNAL LIGHT ASSEMBLY RH)


    1. Disconnect the z11 front multiplex network door ECU RH connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      z11-12 (-) - z11-16 (B) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      z11-16 (B) - Body ground Always 10 kΩ or higher
      z11-12 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    OK

  11. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. Remove the cowl side junction block LH.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      B002EO2C01
      *a

      Component without harness connected

      (Cowl Side Junction Block LH)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      5B-3 - 5A-12 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here

    NG

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

  12. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the U36 rear combination light assembly RH connector.

    2. Disconnect the K32 combination meter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      U36-2 (TRN) - K32-1 (TRNR) Always Below 1 Ω
      U36-4 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      U36-2 (TRN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. CHECK TURN SIGNAL LIGHTS (LH SIDE)


    1. Turn the engine switch on (IG).

    2. Set the headlight dimmer switch assembly to the left turn switch position.

    3. Check the operation of the turn signal lights (LH side).

      Result
      Result Proceed to
      Front turn signal light assembly (LH side) does not blink. A
      Side turn signal light assembly (LH side) does not blink. B
      Rear turn signal light assembly (LH side) does not blink. C

    B

    CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU LH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    A

  14. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND)


    1. Disconnect the A29 headlight assembly LH connector.

    2. Disconnect the 5D cowl side junction block LH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A29-11 (TNS) - 5D-4 Always Below 1 Ω
      A29-12 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A29-11 (TNS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. Remove the cowl side junction block LH.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      B002CJGC01
      *a

      Component without harness connected

      (Cowl Side Junction Block LH)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      5B-4 - 5D-4 Always Below 1 Ω
      Result
      Result Proceed to
      OK (w/ Canister Pump Module) A
      OK (w/o Canister Pump Module) B
      NG C

    B

    INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH Click here

    C

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

    A

  16. INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Remove the Headlight ECU sub-assembly LH.

      Click here

    2. B002CA6C06
      *a

      Component without harness connected

      (Headlight ECU sub-assembly LH)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A29-11 (TNS) - C-10 (TURN+) Always Below 1 Ω
      A29-12 (GND) - C-13 (TURN-) Always Below 1 Ω
      A29-11 (TNS) - A29-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT UNIT ASSEMBLY LH Click here

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY Click here

  17. INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Remove the Headlight ECU sub-assembly LH.

      Click here

    2. B002CA6C06
      *a

      Component without harness connected

      (Headlight ECU sub-assembly LH)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A29-11 (TNS) - C-10 (TURN+) Always Below 1 Ω
      A29-12 (GND) - C-13 (TURN-) Always Below 1 Ω
      A29-11 (TNS) - A29-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here

    OK

  18. REPLACE FRONT TURN SIGNAL LIGHT ASSEMBLY LH


    1. Replace the front turn signal light assembly LH with a new or known good one.

      Click here

    2. Check for DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    A

    REPLACE HEADLIGHT UNIT ASSEMBLY LH Click here

    B

    END

  19. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU LH - COWL SIDE JUNCTION BLOCK LH OR BODY GROUND)


    1. Disconnect the O4 front multiplex network door ECU LH connector.

    2. Disconnect the 5C cowl side junction block LH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      O4-20 (TRNI) - 5C-24 Always Below 1 Ω
      O4-1 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      5C-24 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  20. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU LH - OUTER REAR VIEW MIRROR ASSEMBLY LH)


    1. Disconnect the z10 front multiplex network door ECU LH connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      z10-16 (B) - z10-12 (-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      z10-16 (B) - Body ground Always 10 kΩ or higher
      z10-12 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  21. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. Remove the cowl side junction block LH.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      B002CJGC01
      *a

      Component without harness connected

      (Cowl Side Junction Block LH)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      5B-4 - 5C-24 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

    NG

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

  22. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the U35 rear combination light assembly LH connector.

    2. Disconnect the K32 combination meter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      U35-2 (TRN) - K32-9 (TRNL) Always Below 1 Ω
      U35-4 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      U35-2 (TRN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR