Toyota Tundra Service Manual: Open in Turn Signal Circuit (B1507,B1508)

DESCRIPTION

DTC Code

DTC Detection Condition

Trouble Area

B1507

Open in turn signal light circuit.

  • for Standard Type Outer Rear View Mirror:
    • Harness or connector
    • Front turn signal light bulb socket
    • Rear turn signal light bulb socket
    • Outer rear view mirror assembly (w/ Turn Signal Indicator)
    • Outer rear view mirror sub-assembly (w/ Turn Signal Indicator)
    • Combination meter asssembly
  • for Extended Type Outer Rear View Mirror:
    • Harness or connector
    • Front turn signal light bulb socket
    • Rear turn signal light bulb socket
    • Outer rear view mirror assembly
    • Combination meter asssembly

B1508

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

  • for Standard Type Outer Rear View Mirror:
    • Harness or connector
    • Front turn signal light bulb socket
    • Rear turn signal light bulb socket
    • Outer rear view mirror assembly (w/ Turn Signal Indicator)
    • Outer rear view mirror sub-assembly (w/ Turn Signal Indicator)
    • Combination meter asssembly
  • for Extended Type Outer Rear View Mirror:
    • Harness or connector
    • Front turn signal light bulb socket
    • Rear turn signal light bulb socket
    • Outer rear view mirror assembly
    • Combination meter asssembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here

(b) Recheck for DTCs and check that no DTCs are output.

Click here

OK:

B1507 and B1508 are not output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK VEHICLE TYPE

(a) Check the vehicle type.

Result

Proceed to

for Standard Type Outer Rear View Mirror

A

for Extended Type Outer Rear View Mirror

B

B

GO TO STEP 22

A

3.

INSPECT LIGHTS

(a) Inspect the illumination of each turn signal light.

Result

Proceed to

LH side turn signal light does not illuminate.

A

RH side turn signal light does not illuminate.

B

B

GO TO STEP 13

A

4.

CHECK TURN SIGNAL LIGHTS (LH SIDE)

(a) Turn the ignition switch to ON.

(b) Set the headlight dimmer switch assembly to the left turn switch position.

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

Result

Proceed to

Front turn signal light (LH side) does not blink.

A

Side turn signal indicator (LH side) does not blink. (w/ Turn Signal Indicator)

B

Rear turn signal light (LH side) does not blink.

C

Side turn signal indicator and rear turn signal light (LH side) does not blink. (w/ Turn Signal Indicator)

D

B

GO TO STEP 7

C

GO TO STEP 10

D

GO TO STEP 12

A

5.

CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT BULB SOCKET LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) for Halogen Headlight:

(1) Disconnect the A12 front turn signal light bulb socket LH connector.

(2) Disconnect the J171 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

A12-3 (B) - J171-9 (LL)

Always

Below 1 Ω

A12-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A12-3 (B) - Body ground

Always

10 kΩ or higher

(b) for LED Headlight:

(1) Disconnect the A55 front turn signal light bulb socket LH connector.

(2) Disconnect the J171 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

A55-3 (B) - J171-9 (LL)

Always

Below 1 Ω

A55-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A55-3 (B) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.

INSPECT FRONT TURN SIGNAL LIGHT BULB SOCKET LH

(a) Remove the front turn signal light bulb socket LH.

for Halogen Headlight: Click here

for LED Headlight: Click here

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

A-3 (B) - B-1

Always

Below 1 Ω

A-2 (E) - B-2

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A-3 (B) - A-2 (E)

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE FRONT TURN SIGNAL LIGHT BULB SOCKET LH

7.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the N5 outer rear view mirror assembly LH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - J171-11 (RLT)

Always

Below 1 Ω

N5-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Remove the outer rear view mirror assembly LH.

Click here

(b) Inspect the outer rear view mirror assembly LH.

Click here

OK

REPLACE COMBINATION METER ASSEMBLY

NG

9.

INSPECT OUTER REAR VIEW MIRROR SUB-ASSEMBLY LH

(a) Remove the outer rear view mirror sub-assembly LH.

Click here

(b) Apply battery voltage and check the operation of the turn signal indicator.

OK:

Battery Connection

Specified Condition

Positive (+) → 1

Negative (-) → 3

Turn signal indicator illuminates

*a

Turn Signal Indicator

*b

Outer Rear View Mirror Sub-assembly LH

OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPLACE OUTER REAR VIEW MIRROR SUB-ASSEMBLY LH

10.

CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT BULB SOCKET LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the R13 rear turn signal light bulb socket LH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

R13-1 (TRN) - J171-11 (RLT)

Always

Below 1 Ω

R13-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

R13-1 (TRN) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

11.

INSPECT REAR TURN SIGNAL LIGHT BULB SOCKET LH

(a) Remove the rear turn signal light bulb socket LH.

Click here

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

A-1 (TRN) - B-1

Always

Below 1 Ω

A-2 (E) - B-2

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A-1 (TRN) - A-2 (E)

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE REAR TURN SIGNAL LIGHT BULB SOCKET LH

12.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the N5 outer rear view mirror assembly LH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - J171-11 (RLT)

Always

Below 1 Ω

N5-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - Body ground

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.

CHECK TURN SIGNAL LIGHTS (RH SIDE)

(a) Turn the ignition switch to ON.

(b) Set the headlight dimmer switch assembly to the right turn switch position.

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

Result

Proceed to

Front turn signal light (RH side) does not blink.

A

Side turn signal indicator (RH side) does not blink. (w/ Turn Signal Indicator)

B

Rear turn signal light (RH side) does not blink.

C

Side turn signal indicator and rear turn signal light (RH side) does not blink. (w/ Turn Signal Indicator)

D

B

GO TO STEP 16

C

GO TO STEP 19

D

GO TO STEP 21

A

14.

CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT BULB SOCKET RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) for Halogen Headlight:

(1) Disconnect the A13 front turn signal light bulb socket RH connector.

(2) Disconnect the J171 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

A13-3 (B) - J171-10 (LR)

Always

Below 1 Ω

A13-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A13-3 (B) - Body ground

Always

10 kΩ or higher

(b) for LED Headlight:

(1) Disconnect the A56 front turn signal light bulb socket RH connector.

(2) Disconnect the J171 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

A56-3 (B) - J171-10 (LR)

Always

Below 1 Ω

A56-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A56-3 (B) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

15.

INSPECT FRONT TURN SIGNAL LIGHT BULB SOCKET RH

(a) Remove the front turn signal light bulb socket RH.

for Halogen Headlight: Click here

for LED Headlight: Click here

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

A-3 (B) - B-1

Always

Below 1 Ω

A-2 (E) - B-2

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A-3 (B) - A-2 (E)

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE FRONT TURN SIGNAL LIGHT BULB SOCKET RH

16.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the M6 outer rear view mirror assembly RH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - J171-12 (RRT)

Always

Below 1 Ω

M6-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

17.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Remove the outer rear view mirror assembly RH.

Click here

(b) Inspect the outer rear view mirror assembly RH.

Click here

OK

REPLACE COMBINATION METER ASSEMBLY

NG

18.

INSPECT OUTER REAR VIEW MIRROR SUB-ASSEMBLY RH

(a) Remove the outer rear view mirror sub-assembly RH.

Click here

(b) Apply battery voltage and check the operation of the turn signal indicator.

OK:

Battery Connection

Specified Condition

Positive (+) → 1

Negative (-) → 3

Turn signal indicator illuminates

*a

Turn Signal Indicator

*b

Outer Rear View Mirror Sub-assembly RH

OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

NG

REPLACE OUTER REAR VIEW MIRROR SUB-ASSEMBLY RH

19.

CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT BULB SOCKET RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the R14 rear turn signal light bulb socket RH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

R14-1 (TRN) - J171-12 (RRT)

Always

Below 1 Ω

R14-2 (E) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

R14-1 (TRN) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

20.

INSPECT REAR TURN SIGNAL LIGHT BULB SOCKET RH

(a) Remove the rear turn signal light bulb socket RH.

Click here

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

A-1 (TRN) - B-1

Always

Below 1 Ω

A-2 (E) - B-2

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

A-1 (TRN) - A-2 (E)

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE REAR TURN SIGNAL LIGHT BULB SOCKET RH

21.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the M6 outer rear view mirror assembly RH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - J171-12 (RRT)

Always

Below 1 Ω

M6-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - Body ground

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

22.

INSPECT LIGHTS

(a) Inspect the illumination of each turn signal light.

Result

Proceed to

LH side turn signal light does not illuminate.

A

RH side turn signal light does not illuminate.

B

B

GO TO STEP 26

A

23.

CHECK TURN SIGNAL LIGHTS (LH SIDE)

(a) Turn the ignition switch to ON.

(b) Set the headlight dimmer switch assembly to the left turn switch position.

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

Result

Proceed to

Front turn signal light (LH side) does not blink.

A

Turn signal indicator (LH side) does not blink.

B

Rear turn signal light (LH side) does not blink.

C

Side turn signal indicator and rear turn signal light (LH side) does not blink.

D

A

GO TO STEP 5

C

GO TO STEP 10

D

GO TO STEP 12

B

24.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the N5 outer rear view mirror assembly LH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - J171-11 (RLT)

Always

Below 1 Ω

N5-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

N5-4 (TRNL) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

25.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Remove the outer rear view mirror assembly LH.

Click here

(b) Inspect the outer rear view mirror assembly LH.

Click here

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

26.

CHECK TURN SIGNAL LIGHTS (RH SIDE)

(a) Turn the ignition switch to ON.

(b) Set the headlight dimmer switch assembly to the right turn switch position.

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

Result

Proceed to

Front turn signal light (RH side) does not blink.

A

Side turn signal indicator (RH side) does not blink.

B

Rear turn signal light (RH side) does not blink.

C

Side turn signal indicator and rear turn signal light (RH side) does not blink.

D

A

GO TO STEP 14

C

GO TO STEP 19

D

GO TO STEP 21

B

27.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the M6 outer rear view mirror assembly RH connector.

(b) Disconnect the J171 combination meter assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - J171-12 (RRT)

Always

Below 1 Ω

M6-3 (GND) - Body ground

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

M6-4 (TRNR) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

28.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Remove the outer rear view mirror assembly RH.

Click here

(b) Inspect the outer rear view mirror assembly RH.

Click here

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

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