DTC B1507: Open in Turn Signal Circuit [09/2016 - ]: 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 I7 combination meter assembly (meter circuit plate) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3A-5 - I7-12 (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 A21 front turn signal light assembly LH connector.
2. Disconnect the 3F 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
   A21-1 (B) - 3F-6	Always	Below 1 Ω
   A21-5 (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 [09/2016 - 07/2020] , or refer to REMOVAL [07/2020 - ]

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

   Standard Resistance

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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [09/2016 - ] 

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [09/2016 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

1. Disconnect the P11 rear turn signal light assembly LH (rear turn signal light lens and body LH) connector.
2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P11-1 (B) - I7-13 (TRNL)	Always	Below 1 Ω
   P11-2 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [09/2016 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the 3A instrument panel junction block assembly connector.
2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3A-4 - I7-6 (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 A12 front turn signal light assembly RH connector.
2. Disconnect the 3F 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
   A12-1 (B) - 3F-8	Always	Below 1 Ω
   A12-5 (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 [09/2016 - 07/2020] , or refer to REMOVAL [07/2020 - ]

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

   Standard Resistance

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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [09/2016 - ] 

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [09/2016 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

1. Disconnect the P9 rear turn signal light assembly RH (rear turn signal light lens and body RH) connector.
2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P9-1 (B) - I7-7 (TRNR)	Always	Below 1 Ω
   P9-2 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [09/2016 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR