DTC B1507-18: Turn Signal Light Circuit Current Below Threshold [03/2017 - 06/2017]: Procedure

1. Inspect the illumination of each turn signal light.

   Result

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

Result: 

B 

See step  5

Result: 

C 

See step  6

Result: 

D 

See step  9

Result: 

A 

See step  2

1. Disconnect the 3A instrument panel junction block assembly connector.
2. Disconnect the K20 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3A-5 - K20-11 (LL)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Disconnect the A53 headlight assembly LH connector.
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

   Tester Connection	Condition	Specified Condition
   A53-1 (B) - 3C-6	Always	Below 1 Ω
   A53-3 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the instrument panel junction block assembly.

   Refer to REMOVAL [03/2017 - 06/2017]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3C-6 - 3A-5	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

1. Disconnect the W13 rear combination light assembly LH connector.
2. Disconnect the K20 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   W13-3 (B) - K20-10 (TRNL)	Always	Below 1 Ω
   W13-4 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the 3A instrument panel junction block assembly connector.
2. Disconnect the K20 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3A-4 - K20-7 (LR)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Disconnect the A52 headlight assembly RH connector.
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

   Tester Connection	Condition	Specified Condition
   A52-1 (B) - 3C-8	Always	Below 1 Ω
   A52-3 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the instrument panel junction block assembly.

   Refer to REMOVAL [03/2017 - 06/2017]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3C-8 - 3A-4	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

1. Disconnect the W12 rear combination light assembly RH connector.
2. Disconnect the K20 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   W12-3 (B) - K20-13 (TRNR)	Always	Below 1 Ω
   W12-4 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR