Dtc B1507 Open In Turn Signal Circuit

Vehicle Interior. Yaris. Ncp93, 131
Meter Gauge Display. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT LIGHTS

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

DTC B1507 Open in Turn Signal Circuit

DTC B1508 Short in Turn Signal / Hazard Flasher Circuit


DESCRIPTION

The combination meter assembly receives headlight dimmer switch information signals, and flash the turn signal lights.

DTC No.
DTC Detection
Trouble Area
B1507
When IG voltage is 9.5 V or more and the following condition detected:
  1. Open in turn signal light circuit
  1. Harness or connector
  2. Bulb
  3. Instrument panel junction block assembly
  4. Combination meter assembly
B1508
When IG voltage is 9.5 V or more and the following condition detected:
  1. Short in turn signal light circuit or hazard warning light circuit
  1. Harness or connector
  2. Bulb
  3. Instrument panel junction block assembly
  4. Combination meter assembly

WIRING DIAGRAM


Yaris. Ncp93, 131.Meter Gauge Display.Meter / Gauge System (For Sedan). Dtc B1507 Open In Turn Signal Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
1.INSPECT LIGHTS

  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
Go to step 3

C
Go to step 4
A


2.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

  1. Disconnect the D101 combination meter assembly connector.

  1. Disconnect the 3B instrument panel junction block assembly connector.

  1. 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
Go to step 5
A

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

  1. Disconnect the A42*1 or A43*2 front turn signal light connector.

  1. *1: for RH
  2. *2: for LH

  1. Disconnect the 3C instrument panel junction block assembly connector.

  1. 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
Go to step 5
A

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

  1. Disconnect the J65*1 or J64*2 rear turn signal light connector.

  1. *1: for RH
  2. *2: for LH

  1. Disconnect the 3D instrument panel junction block assembly connector.

  1. 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


5.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

  1. Remove the instrument panel junction block assembly (YARIS_NCP93 RM000003TOE00CX.html).

  1. Remove the main body ECU (multiplex network body ECU) (YARIS_NCP93 RM000003TOE00CX_01_0009.html).

  1. 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
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (YARIS_NCP93 RM000003TOE00CX.html)
OK

REPLACE COMBINATION METER ASSEMBLY (YARIS_NCP93 RM0000035EJ00BX.html)