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, a short in a turn signal light circuit, or a short in the hazard warning light circuit.

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

Both conditions are met:


  • IG voltage is 10.5 V or higher.

  • Open in turn signal light circuit.

  • Harness or connector

  • Outer mirror control ECU assembly

  • Outer rear view mirror assembly

  • Side turn signal light assembly

  • Clearance light assembly

  • Rear combination light assembly

  • Combination meter assembly
B1508 Short in Turn Signal / Hazard Flasher Circuit

Both conditions are met:


  • IG voltage is 10.5 V or higher.

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

  • Harness or connector

  • Outer mirror control ECU assembly

  • Outer rear view mirror assembly

  • Side turn signal light assembly

  • Clearance light assembly

  • Rear combination light assembly

  • Combination meter assembly

WIRING DIAGRAM

A01MFQRE02

CAUTION / NOTICE / HINT

Note

When replacing the combination meter assembly, make sure to replace it with a new one.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Combination Meter > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      OK
      B1507 and B1508 are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      Front LH side turn signal light does not illuminate. A
      Front RH side turn signal light does not illuminate. B
      Rear LH side turn signal light does not illuminate. C
      Rear RH side turn signal light does not illuminate. D

    B

    CHECK HARNESS AND CONNECTOR (FRONT RH SIDE CIRCUIT) Click here

    C

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

    D

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

    A

  3. CHECK HARNESS AND CONNECTOR (FRONT LH SIDE CIRCUIT)


    1. Disconnect the G14 combination meter assembly connector.

    2. Disconnect the z11 outer rear view mirror assembly LH connector.

    3. Disconnect the L10 clearance light assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-12 (LL) - z11-16 (B) Always Below 1 Ω
      G14-12 (LL) - A19-1 (B) Always Below 1 Ω
      z11-12 (-) - Body ground Always Below 1 Ω
      A19-2 (E) - Body ground Always Below 1 Ω
      G14-12 (LL) or z11-16 (B) - Body ground Always 10 kΩ or higher
      G14-12 (LL) or A19-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (FRONT LH SIDE CIRCUIT) Click here

    OK

  4. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. Remove the outer rear view mirror assembly LH.

      Click here

    2. Inspect the outer rear view mirror assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    END (CLEARANCE LIGHT ASSEMBLY LH IS DEFECTIVE)

    NG

    INSPECT SIDE TURN SIGNAL LAMP ASSEMBLY LH Click here

  5. CHECK HARNESS AND CONNECTOR (FRONT LH SIDE CIRCUIT)


    1. Disconnect the G14 combination meter assembly connector.

    2. Disconnect the L10 outer mirror control ECU assembly LH connector.

    3. Disconnect the A19 clearance light assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-12 (LL) - L10-11 (TRNI) Always Below 1 Ω
      G14-12 (LL) - A19-1 (B) Always Below 1 Ω
      L10-7 (GND) - Body ground Always Below 1 Ω
      A19-2 (E) - Body ground Always Below 1 Ω
      G14-12 (LL) or L10-11 (TRNI) - Body ground Always 10 kΩ or higher
      G14-12 (LL) or A19-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT SIDE TURN SIGNAL LAMP ASSEMBLY LH


    1. Remove the side turn signal light assembly LH.

      Click here

    2. Inspect the side turn signal light assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    NG

    REPLACE SIDE TURN SIGNAL LAMP ASSEMBLY LH Click here

  7. CHECK HARNESS AND CONNECTOR (FRONT RH SIDE CIRCUIT)


    1. Disconnect the G14 combination meter assembly connector.

    2. Disconnect the z12 outer rear view mirror assembly RH connector.

    3. Disconnect the A18 clearance light assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-6 (LR) - z12-16 (B) Always Below 1 Ω
      G14-6 (LR) - A18-1 (B) Always Below 1 Ω
      z12-12 (-) - Body ground Always Below 1 Ω
      A18-2 (E) - Body ground Always Below 1 Ω
      G14-6 (LR) or z12-16 (B) - Body ground Always 10 kΩ or higher
      G14-6 (LR) or A18-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (FRONT RH SIDE CIRCUIT) Click here

    OK

  8. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Remove the outer rear view mirror assembly RH.

      Click here

    2. Inspect the outer rear view mirror assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    END (CLEARANCE LIGHT ASSEMBLY RH IS DEFECTIVE)

    NG

    INSPECT SIDE TURN SIGNAL LAMP ASSEMBLY RH Click here

  9. CHECK HARNESS AND CONNECTOR (FRONT RH SIDE CIRCUIT)


    1. Disconnect the G14 combination meter assembly connector.

    2. Disconnect the L1 outer mirror control ECU assembly RH connector.

    3. Disconnect the A18 clearance light assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-6 (LR) - L1-11 (TRNI) Always Below 1 Ω
      G14-6 (LR) - A18-1 (B) Always Below 1 Ω
      L1-7 (GND) - Body ground Always Below 1 Ω
      A18-2 (E) - Body ground Always Below 1 Ω
      G14-6 (LR) or L1-11 (TRNI) - Body ground Always 10 kΩ or higher
      G14-6 (LR) or A18-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. INSPECT SIDE TURN SIGNAL LAMP ASSEMBLY RH


    1. Remove the side turn signal light assembly RH.

      Click here

    2. Inspect the side turn signal light assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    NG

    REPLACE SIDE TURN SIGNAL LAMP ASSEMBLY RH Click here

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


    1. Disconnect the P15 rear combination light assembly LH connector.

    2. Disconnect the G14 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P15-4 (TRN) - G14-13 (TRNL) Always Below 1 Ω
      P15-6 (E) - Body ground Always Below 1 Ω
      P15-4 (TRN) or G14-13 (TRNL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. CHECK REAR COMBINATION LIGHT ASSEMBLY LH


    1. Remove the rear combination light assembly LH.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Combination Meter > Clear DTCs

    3. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (REAR COMBINATION LIGHT ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

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


    1. Disconnect the Q14 rear combination light assembly RH connector.

    2. Disconnect the G14 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q14-4 (TRN) - G14-7 (TRNR) Always Below 1 Ω
      Q14-6 (E) - Body ground Always Below 1 Ω
      Q14-4 (TRN) or G14-7 (TRNR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. CHECK REAR COMBINATION LIGHT ASSEMBLY RH


    1. Remove the rear combination light assembly RH.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Combination Meter > Clear DTCs

    3. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (REAR COMBINATION LIGHT ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here