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. DTC Detection Condition Trouble Area
B1507

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


  • Open in turn signal light circuit

  • LED

  • Bulb

  • Harness or connector

  • Outer rear view mirror assembly LH*3

  • Outer rear view mirror assembly RH*3

  • Outer mirror control ECU assembly LH*1*3

  • Outer mirror control ECU assembly RH*1*3

  • Rear combination light socket and wire subassembly LH*2

  • Rear combination light socket and wire subassembly RH*2

  • Towing Converter Assembly*4

  • Combination meter assembly
B1508

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

  • Bulb

  • Harness or connector

  • Outer rear view mirror assembly LH*3

  • Outer rear view mirror assembly RH*3

  • Outer mirror control ECU assembly LH*1*3

  • Outer mirror control ECU assembly RH*1*3

  • Rear combination light socket and wire subassembly LH*2

  • Rear combination light socket and wire subassembly RH*2

  • Towing Converter Assembly*4

  • Combination meter assembly

WIRING DIAGRAM


  1. RH Side

    B001XH6E03

  2. LH Side

    B001XH6E04

CAUTION / NOTICE / HINT

Note

Inspect the bulbs for this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

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

      Result
      Result Proceed to
      B1507 and B1508 are output A
      B1507 and B1508 are not output B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      RH side turn signal light does not illuminate A
      LH side turn signal light does not illuminate B

    B

    CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)


    • *1: w/ Retract Mirror

    • *2: w/o Retract Mirror

    • *3: except Double Swing Out Type

    • *4: for Double Swing Out Type

    • *5: for Front Fender

    • *6: w/ Towing Package

    • *7: for Outer Rear View Mirror


    1. Disconnect the E120 combination meter assembly connector.

    2. Disconnect the A69 headlight assembly RH connector.

    3. Disconnect the I20*2 or I32*1 outer rear view mirror assembly RH connector.*7

    4. Disconnect the A47 side turn signal light assembly RH connector.*5

    5. Disconnect the L4*3 or Y1*4 rear combination light assembly RH connector.

    6. Disconnect the K64 towing converter connector.*6

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A69-5 (B) - E120-13 (LR) Always Below 1 Ω
      A69-4 (E) - Body ground Always Below 1 Ω
      I20-4 (TRNL) - E120-13 (LR) Always Below 1 Ω
      I20-21 (GND) - Body ground Always Below 1 Ω
      I32-4 (TRNR) - E120-13 (LR) Always Below 1 Ω
      I32-21 (E1) - Body ground Always Below 1 Ω
      A47-1 (B) - E120-13 (LR) Always Below 1 Ω
      A47-2 (E) - Body ground Always Below 1 Ω
      L4-4 (TRN) - E120-13 (LR) Always Below 1 Ω
      L4-3 (E) - Body ground Always Below 1 Ω
      Y1-1 (TRN) - E120-13 (LR) Always Below 1 Ω
      Y1-4 (E) - Body ground Always Below 1 Ω
      K64-3 (RTIN) - E120-13 (LR) Always Below 1 Ω
      E120-13 (LR) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for Outer Rear View Mirror with Retract Mirror) B
      NG (except Outer Rear View Mirror with Retract Mirror) C

    B

    CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH) Click here

    C

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    A

  4. INSPECT HEADLIGHT ASSEMBLY RH


    1. Remove the headlight assembly RH.


    2. B001WVWE04
      Text in Illustration
      *a

      Component without harness connected

      (Headlight Assembly RH)

      Apply battery voltage between the terminals and check the light illumination condition.

      OK
      Condition Specified Condition

      Battery positive (+) →5 (B)

      Battery positive (-) →4 (E)

      		 Turn signal light illuminates
      Result
      Result Proceed to
      OK (for Outer Rear View Mirror) A
      OK (for Front Fender) B
      NG (for Halogen Headlight) C
      NG (for LED Headlight) D
      NG (for Halogen Headlight and LED Headlight) E

    B

    CHECK VEHICLE TYPE Click here

    C

    REPLACE HEADLIGHT ASSEMBLY RH Click here

    D

    REPLACE HEADLIGHT ASSEMBLY RH Click here

    E

    REPLACE HEADLIGHT ASSEMBLY RH Click here

    A

  5. 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


    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    OK

  6. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      except Double Swing Out Type A
      for Double Swing Out Type B

    B

    CHECK VEHICLE TYPE Click here

    A

  7. INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY RH


    1. Remove the rear combination light socket and wire subassembly RH Click here.

    2. Install the turn signal light bulb to the rear combination light socket and wire sub-assembly RH.

    3. B001VOEE05
      Text in Illustration
      *a

      Component without harness connected

      (Rear Combination Light Socket and Wire Sub-assembly RH)

      Apply battery voltage between the terminals and check the light illumination condition.

      OK
      Condition Specified Condition

      Battery positive (+) →4 (TRN)

      Battery positive (-) →3 (E)

      		 Turn signal light illuminates

    NG

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY RH Click here

    OK

  8. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Towing Package A
      w/o Towing Package B

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    A

  9. CHECK TOWING CONVERTER


    1. Replace the towing converter.

    2. Clear the DTCs.

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


    OK

    END (TOWING CONVERTER IS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

  10. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)


    • *1: except Double Swing Out Type

    • *2: for Double Swing Out Type

    • *3: w/ Towing Package


    1. Disconnect the E120 combination meter assembly connector.

    2. Disconnect the A69 headlight assembly RH connector.

    3. Disconnect the I38 outer mirror control ECU assembly RH connector.

    4. Disconnect the L4*1 or Y1*2 rear combination light assembly RH connector.

    5. Disconnect the K64 towing converter connector.*3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A69-5 (B) - E120-13 (LR) Always Below 1 Ω
      A69-4 (E) - Body ground Always Below 1 Ω
      I38-11 (TRNI) - E120-13 (LR) Always Below 1 Ω
      I38-7 (GND) - Body ground Always Below 1 Ω
      L4-4 (TRN) - E120-13 (LR) Always Below 1 Ω
      L4-3 (E) - Body ground Always Below 1 Ω
      Y1-1 (TRN) - E120-13 (LR) Always Below 1 Ω
      Y1-4 (E) - Body ground Always Below 1 Ω
      K64-3 (RTIN) - E120-13 (LR) Always Below 1 Ω
      E120-13 (LR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  11. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)


    1. Disconnect the I37 outer mirror control ECU assembly RH connector.

    2. Disconnect the I32 outer rear view mirror assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I37-16 (TRN+) - I32-4 (TRNR) Always Below 1 Ω
      I37-14 (RE1) - I32-21 (E1) Always Below 1 Ω
      I37-16 (TRN+) or I32-4 (TRNR) - I37-14 (RE1) or I32-21 (E1) Always 10 kΩ or higher

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

  12. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH)


    • *1: w/ Retract Mirror

    • *2: w/o Retract Mirror

    • *3: except Double Swing Out Type

    • *4: for Double Swing Out Type

    • *5: for Front Fender

    • *6: w/ Towing Package

    • *7: for Outer Rear View Mirror


    1. Disconnect the E120 combination meter assembly connector.

    2. Disconnect the A66 headlight assembly LH connector.

    3. Disconnect the I21*2 or I35*1 outer rear view mirror assembly LH connector.*7

    4. Disconnect the A45 side turn signal light assembly LH connector.*5

    5. Disconnect the K4*3 or n1*4 rear combination light assembly LH connector.

    6. Disconnect the K64 towing converter connector.*6

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A66-5 (B) - E120-7 (LL) Always Below 1 Ω
      A66-4 (E) - Body ground Always Below 1 Ω
      I21-4 (TRNL) - E120-7 (LL) Always Below 1 Ω
      I21-21 (GND) - Body ground Always Below 1 Ω
      I35-4 (TRNL) - E120-7 (LL) Always Below 1 Ω
      I35-21 (E1) - Body ground Always Below 1 Ω
      A45-1 (B) - E120-7 (LL) Always Below 1 Ω
      A45-2 (E) - Body ground Always Below 1 Ω
      K4-4 (TRN) - E120-7 (LL) Always Below 1 Ω
      K4-3 (E) - Body ground Always Below 1 Ω
      n1-1 (TRN) - E120-7 (LL) Always Below 1 Ω
      n1-4 (E) - Body ground Always Below 1 Ω
      K64-9 (LTIN) - E120-7 (LL) Always Below 1 Ω
      E120-7 (LL) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for Outer Rear View Mirror with Retract Mirror) B
      NG (except Outer Rear View Mirror with Retract Mirror) C

    B

    CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH) Click here

    C

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    A

  13. INSPECT HEADLIGHT ASSEMBLY LH


    1. Remove the headlight assembly LH.


    2. B001WVWE04
      Text in Illustration
      *a

      Component without harness connected

      (Headlight Assembly LH)

      Apply battery voltage between the terminals and check the light illumination condition.

      OK
      Condition Specified Condition

      Battery positive (+) →5 (B)

      Battery positive (-) →4 (E)

      		 Turn signal light illuminates
      Result
      Result Proceed to
      OK (for Outer Rear View Mirror) A
      OK (for Front Fender) B
      NG (for Halogen Headlight) C
      NG (for LED Headlight) D
      NG (for Halogen Headlight and LED Headlight) E

    B

    CHECK VEHICLE TYPE Click here

    C

    REPLACE HEADLIGHT ASSEMBLY LH Click here

    D

    REPLACE HEADLIGHT ASSEMBLY LH Click here

    E

    REPLACE HEADLIGHT ASSEMBLY LH Click here

    A

  14. 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


    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  15. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      except Double Swing Out Type A
      for Double Swing Out Type B

    B

    CHECK VEHICLE TYPE Click here

    A

  16. INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY LH


    1. Remove the rear combination light socket and wire subassembly LH Click here.

    2. Install the turn signal light bulb to the rear combination light socket and wire sub-assembly LH.

    3. B001VOEE05
      Text in Illustration
      *a

      Component without harness connected

      (Rear Combination Light Socket and Wire Sub-assembly LH)

      Apply battery voltage between the terminals and check the light illumination condition.

      OK
      Condition Specified Condition

      Battery positive (+) →4 (TRN)

      Battery positive (-) →3 (E)

      		 Turn signal light illuminates

    NG

    REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY LH Click here

    OK

  17. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Towing Package A
      w/o Towing Package B

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    A

  18. CHECK TOWING CONVERTER


    1. Replace the towing converter.

    2. Clear the DTCs.

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


    OK

    END (TOWING CONVERTER IS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

  19. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH)


    • *1: except Double Swing Out Type

    • *2: for Double Swing Out Type

    • *3: w/ Towing Package


    1. Disconnect the E120 combination meter assembly connector.

    2. Disconnect the A66 headlight assembly LH connector.

    3. Disconnect the I41 outer mirror control ECU assembly LH connector.

    4. Disconnect the K4*1 or n1*2 rear combination light assembly LH connector.

    5. Disconnect the K64 towing converter connector.*3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A66-5 (B) - E120-7 (LL) Always Below 1 Ω
      A66-4 (E) - Body ground Always Below 1 Ω
      I41-11 (TRNI) - E120-7 (LL) Always Below 1 Ω
      I41-7 (GND) - Body ground Always Below 1 Ω
      K4-4 (TRN) - E120-7 (LL) Always Below 1 Ω
      K4-3 (E) - Body ground Always Below 1 Ω
      n1-1 (TRN) - E120-7 (LL) Always Below 1 Ω
      n1-4 (E) - Body ground Always Below 1 Ω
      K64-9 (LTIN) - E120-7 (LL) Always Below 1 Ω
      E120-7 (LL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  20. CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)


    1. Disconnect the I40 outer mirror control ECU assembly LH connector.

    2. Disconnect the I35 outer rear view mirror assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I40-16 (TRN+) - I35-4 (TRNL) Always Below 1 Ω
      I40-14 (LE1) - I35-21 (E1) Always Below 1 Ω
      I40-16 (TRN+) or I35-4 (TRNL) - I40-14 (LE1) or I35-21 (E1) Always 10 kΩ or higher

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR