DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit: Procedure

1. Inspect each turn signal light illumination.
   RESULT
   
   

   Result	Proceed to
   One side of the turn signal lights does not illuminate.	A
   Front turn signal lights do not illuminate.	B
   Rear turn signal lights do not illuminate.	C

B → See step   3 

C → See step   4 

A: Go to next step 

1. Disconnect the D101 combination meter assembly connector.
2. Disconnect the 3B instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   D101-13 (LL) - 3B-24	Always	Below 1 Ω
   D101-13 (LL) - Body ground	Always	10 kΩ or higher

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   D101-7 (LR) - 3B-25	Always	Below 1 Ω
   D101-7 (LR) - Body ground	Always	10 kΩ or higher

   RESULT
   
   

   Result	Proceed to
   NG	A
   OK	B

B → See step   5 

A → REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the A42*1 or A43*2 front turn signal light connector.
   • *1: for RH
   • *2: for LH
2. Disconnect the 3C instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   A43-1 (B) - 3C-28	Always	Below 1 Ω
   A43-2 (E) - Body ground	Always	Below 1 Ω
   A43-1 (B) - Body ground	Always	10 kΩ or higher

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   A42-1 (B) - 3C-38	Always	Below 1 Ω
   A42-2 (E) - Body ground	Always	Below 1 Ω
   A42-1 (B) - Body ground	Always	10 kΩ or higher

   RESULT
   
   

   Result	Proceed to
   NG	A
   OK	B

B → See step   5 

A → REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the J65*1 or J64*2 rear turn signal light connector.
   • *1: for RH
   • *2: for LH
2. Disconnect the 3D instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   J64-2 (B) - 3D-18	Always	Below 1 Ω
   J64-6 (E) -Body ground	Always	Below 1 Ω
   J64-2 (B) -Body ground	Always	10 kΩ or higher

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   J65-2 (B) - 3D-5	Always	Below 1 Ω
   J65-6 (E) -Body ground	Always	Below 1 Ω
   J65-2 (B) -Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the instrument panel junction block assembly. Refer to REMOVAL .
2. Remove the main body ECU (multiplex network body ECU). Refer to REMOVAL - Step 7 .
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3B-25 - 3C-38	Always	Below 1 Ω
   3B-25 - 3D-5	Always	Below 1 Ω
   3B-24 - 3C-28	Always	Below 1 Ω
   3B-24 - 3D-18	Always	Below 1 Ω

NG → See step   7 

OK → See step   6