Meter Gauge Display. Dtc B1507 Open In Turn Signal Circuit

These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, a short in a turn signal light circuit, or a short in the hazard warning light circuit.

DTC No.	DTC Detection Condition	Trouble Area
B1507	When IG voltage is 9.5 V or more and the following condition is detected: Open in turn signal light circuit	LED Bulb Harness or connector Outer rear view mirror assembly LH3 Outer rear view mirror assembly RH3 Outer mirror control ECU assembly LH13 Outer mirror control ECU assembly RH13 Rear combination light socket and wire subassembly LH2 Rear combination light socket and wire subassembly RH2 Towing Converter Assembly*4 Combination meter assembly
B1508	When IG voltage is 9.5 V or more and the following condition is detected: Short in turn signal light circuit or hazard warning light circuit	LED Bulb Harness or connector Outer rear view mirror assembly LH3 Outer rear view mirror assembly RH3 Outer mirror control ECU assembly LH13 Outer mirror control ECU assembly RH13 Rear combination light socket and wire subassembly LH2 Rear combination light socket and wire subassembly RH2 Towing Converter Assembly*4 Combination meter assembly

*1: w/ Retract Mirror
*2: except Double Swing Out Type
*3: for Outer Rear View Mirror
*4: w/ Towing Package

WIRING DIAGRAM

RH Side

Land Cruiser. Urj200, 202 Grj200 Vdj200.Meter Gauge Display.Meter / Gauge System.
Dtc
B1507 Open In Turn Signal Circuit

LH Side

INSPECTION PROCEDURE

NOTICE:

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

1.CHECK DTC

Clear the DTCs.

Recheck for DTCs and check that no DTCs are output.
Result
Result
Proceed to
B1507 and B1508 are output
A
B1507 and B1508 are not output
B

USE SIMULATION METHOD TO CHECK (Click here)

A

2.INSPECT LIGHTS

Inspect the illumination of each turn signal light.
Result
Result
Proceed to
RH side turn signal light does not illuminate
A
LH side turn signal light does not illuminate
B

Go to step 12

A

3.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)

*1: w/ Retract Mirror
*2: w/o Retract Mirror
*3: except Double Swing Out Type
*4: for Double Swing Out Type
*5: for Front Fender
*6: w/ Towing Package
*7: for Outer Rear View Mirror

Disconnect the E120 combination meter assembly connector.

Disconnect the A69 headlight assembly RH connector.

Disconnect the I20*2 or I32*1 outer rear view mirror assembly RH connector.*7

Disconnect the A47 side turn signal light assembly RH connector.*5

Disconnect the L4*3 or Y1*4 rear combination light assembly RH connector.

Disconnect the K64 towing converter connector.*6

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A69-5 (B) - E120-13 (LR)	Always	Below 1 Ω
A69-4 (E) - Body ground	Always	Below 1 Ω
I20-4 (TRNL) - E120-13 (LR)	Always	Below 1 Ω
I20-21 (GND) - Body ground	Always	Below 1 Ω
I32-4 (TRNR) - E120-13 (LR)	Always	Below 1 Ω
I32-21 (E1) - Body ground	Always	Below 1 Ω
A47-1 (B) - E120-13 (LR)	Always	Below 1 Ω
A47-2 (E) - Body ground	Always	Below 1 Ω
L4-4 (TRN) - E120-13 (LR)	Always	Below 1 Ω
L4-3 (E) - Body ground	Always	Below 1 Ω
Y1-1 (TRN) - E120-13 (LR)	Always	Below 1 Ω
Y1-4 (E) - Body ground	Always	Below 1 Ω
K64-3 (RTIN) - E120-13 (LR)	Always	Below 1 Ω
E120-13 (LR) - Body ground	Always	10 kΩ or higher

Result:

Result	Proceed to
OK	A
NG (for Outer Rear View Mirror with Retract Mirror)	B
NG (except Outer Rear View Mirror with Retract Mirror)	C

Go to step 10

REPAIR OR REPLACE HARNESS AND CONNECTOR

A

4.INSPECT HEADLIGHT ASSEMBLY RH

Remove the headlight assembly RH.
1. for Halogen Headlight (Click here)
2. for LED Headlight (Click here)
3. for Halogen Headlight and LED Headlight (Click here)

Apply battery voltage between the terminals and check the light illumination condition.
Text in Illustration
*a
Component without harness connected
(Headlight Assembly RH)
OK:
Condition
Specified Condition
Battery positive (+) →5 (B)
Battery positive (-) →4 (E)
Turn signal light illuminates
Result:
Result
Proceed to
OK (for Outer Rear View Mirror)
A
OK (for Front Fender)
B
NG (for Halogen Headlight)
C
NG (for LED Headlight)
D
NG (for Halogen Headlight and LED Headlight)
E

Text in Illustration
*a	Component without harness connected (Headlight Assembly RH)

Go to step 6

REPLACE HEADLIGHT ASSEMBLY RH (Click here)

A

5.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

Remove the outer rear view mirror assembly RH.
(Click here)

Inspect the outer rear view mirror assembly RH.
(Click here)

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH (Click here)

OK

6.CHECK VEHICLE TYPE

Check the vehicle type.

Result:

Result	Proceed to
except Double Swing Out Type	A
for Double Swing Out Type	B

Go to step 8

A

7.INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY RH

Remove the rear combination light socket and wire subassembly RH (Click here).

Install the turn signal light bulb to the rear combination light socket and wire sub-assembly RH.

Apply battery voltage between the terminals and check the light illumination condition.
Text in Illustration
*a
Component without harness connected
(Rear Combination Light Socket and Wire Sub-assembly RH)
OK:
Condition
Specified Condition
Battery positive (+) →4 (TRN)
Battery positive (-) →3 (E)
Turn signal light illuminates

REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY RH (Click here)

OK

8.CHECK VEHICLE TYPE

Check the vehicle type.

Result:

Result	Proceed to
w/ Towing Package	A
w/o Towing Package	B

REPLACE COMBINATION METER ASSEMBLY (Click here)

A

9.CHECK TOWING CONVERTER

Replace the towing converter.

Clear the DTCs.

Check for DTCs and check that no DTCs are output.

REPLACE COMBINATION METER ASSEMBLY (Click here)

END (TOWING CONVERTER IS DEFECTIVE)

10.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)

*1: except Double Swing Out Type
*2: for Double Swing Out Type
*3: w/ Towing Package

Disconnect the E120 combination meter assembly connector.

Disconnect the A69 headlight assembly RH connector.

Disconnect the I38 outer mirror control ECU assembly RH connector.

Disconnect the L4*1 or Y1*2 rear combination light assembly RH connector.

Disconnect the K64 towing converter connector.*3

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A69-5 (B) - E120-13 (LR)	Always	Below 1 Ω
A69-4 (E) - Body ground	Always	Below 1 Ω
I38-11 (TRNI) - E120-13 (LR)	Always	Below 1 Ω
I38-7 (GND) - Body ground	Always	Below 1 Ω
L4-4 (TRN) - E120-13 (LR)	Always	Below 1 Ω
L4-3 (E) - Body ground	Always	Below 1 Ω
Y1-1 (TRN) - E120-13 (LR)	Always	Below 1 Ω
Y1-4 (E) - Body ground	Always	Below 1 Ω
K64-3 (RTIN) - E120-13 (LR)	Always	Below 1 Ω
E120-13 (LR) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

11.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)

Disconnect the I37 outer mirror control ECU assembly RH connector.

Disconnect the I32 outer rear view mirror assembly RH connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I37-16 (TRN+) - I32-4 (TRNR)	Always	Below 1 Ω
I37-14 (RE1) - I32-21 (E1)	Always	Below 1 Ω
I37-16 (TRN+) or I32-4 (TRNR) - I37-14 (RE1) or I32-21 (E1)	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS AND CONNECTOR

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH (Click here)

12.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH)

*1: w/ Retract Mirror
*2: w/o Retract Mirror
*3: except Double Swing Out Type
*4: for Double Swing Out Type
*5: for Front Fender
*6: w/ Towing Package
*7: for Outer Rear View Mirror

Disconnect the E120 combination meter assembly connector.

Disconnect the A66 headlight assembly LH connector.

Disconnect the I21*2 or I35*1 outer rear view mirror assembly LH connector.*7

Disconnect the A45 side turn signal light assembly LH connector.*5

Disconnect the K4*3 or n1*4 rear combination light assembly LH connector.

Disconnect the K64 towing converter connector.*6

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A66-5 (B) - E120-7 (LL)	Always	Below 1 Ω
A66-4 (E) - Body ground	Always	Below 1 Ω
I21-4 (TRNL) - E120-7 (LL)	Always	Below 1 Ω
I21-21 (GND) - Body ground	Always	Below 1 Ω
I35-4 (TRNL) - E120-7 (LL)	Always	Below 1 Ω
I35-21 (E1) - Body ground	Always	Below 1 Ω
A45-1 (B) - E120-7 (LL)	Always	Below 1 Ω
A45-2 (E) - Body ground	Always	Below 1 Ω
K4-4 (TRN) - E120-7 (LL)	Always	Below 1 Ω
K4-3 (E) - Body ground	Always	Below 1 Ω
n1-1 (TRN) - E120-7 (LL)	Always	Below 1 Ω
n1-4 (E) - Body ground	Always	Below 1 Ω
K64-9 (LTIN) - E120-7 (LL)	Always	Below 1 Ω
E120-7 (LL) - Body ground	Always	10 kΩ or higher

Result:

Result	Proceed to
OK	A
NG (for Outer Rear View Mirror with Retract Mirror)	B
NG (except Outer Rear View Mirror with Retract Mirror)	C

Go to step 19

REPAIR OR REPLACE HARNESS AND CONNECTOR

A

13.INSPECT HEADLIGHT ASSEMBLY LH

Remove the headlight assembly LH.
1. for Halogen Headlight (Click here)
2. for LED Headlight (Click here)
3. for Halogen Headlight and LED Headlight (Click here)

Apply battery voltage between the terminals and check the light illumination condition.
Text in Illustration
*a
Component without harness connected
(Headlight Assembly LH)
OK:
Condition
Specified Condition
Battery positive (+) →5 (B)
Battery positive (-) →4 (E)
Turn signal light illuminates
Result:
Result
Proceed to
OK (for Outer Rear View Mirror)
A
OK (for Front Fender)
B
NG (for Halogen Headlight)
C
NG (for LED Headlight)
D
NG (for Halogen Headlight and LED Headlight)
E

Go to step 15

REPLACE HEADLIGHT ASSEMBLY LH (Click here)

A

14.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

Remove the outer rear view mirror assembly LH.
(Click here)

Inspect the outer rear view mirror assembly LH.
(Click here)

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH (Click here)

OK

15.CHECK VEHICLE TYPE

Check the vehicle type.

Result:

Result	Proceed to
except Double Swing Out Type	A
for Double Swing Out Type	B

Go to step 17

A

16.INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY LH

Remove the rear combination light socket and wire subassembly LH (Click here).

Install the turn signal light bulb to the rear combination light socket and wire sub-assembly LH.

Apply battery voltage between the terminals and check the light illumination condition.
Text in Illustration
*a
Component without harness connected
(Rear Combination Light Socket and Wire Sub-assembly LH)
OK:
Condition
Specified Condition
Battery positive (+) →4 (TRN)
Battery positive (-) →3 (E)
Turn signal light illuminates

REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY LH (Click here)

OK

17.CHECK VEHICLE TYPE

Check the vehicle type.

Result:

Result	Proceed to
w/ Towing Package	A
w/o Towing Package	B

REPLACE COMBINATION METER ASSEMBLY (Click here)

A

18.CHECK TOWING CONVERTER

Replace the towing converter.

Clear the DTCs.

Check for DTCs and check that no DTCs are output.

REPLACE COMBINATION METER ASSEMBLY (Click here)

END (TOWING CONVERTER IS DEFECTIVE)

19.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT LH)

*1: except Double Swing Out Type
*2: for Double Swing Out Type
*3: w/ Towing Package

Disconnect the E120 combination meter assembly connector.

Disconnect the A66 headlight assembly LH connector.

Disconnect the I41 outer mirror control ECU assembly LH connector.

Disconnect the K4*1 or n1*2 rear combination light assembly LH connector.

Disconnect the K64 towing converter connector.*3

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A66-5 (B) - E120-7 (LL)	Always	Below 1 Ω
A66-4 (E) - Body ground	Always	Below 1 Ω
I41-11 (TRNI) - E120-7 (LL)	Always	Below 1 Ω
I41-7 (GND) - Body ground	Always	Below 1 Ω
K4-4 (TRN) - E120-7 (LL)	Always	Below 1 Ω
K4-3 (E) - Body ground	Always	Below 1 Ω
n1-1 (TRN) - E120-7 (LL)	Always	Below 1 Ω
n1-4 (E) - Body ground	Always	Below 1 Ω
K64-9 (LTIN) - E120-7 (LL)	Always	Below 1 Ω
E120-7 (LL) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

20.CHECK HARNESS AND CONNECTOR (TURN SIGNAL CIRCUIT RH)

Disconnect the I40 outer mirror control ECU assembly LH connector.

Disconnect the I35 outer rear view mirror assembly LH connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I40-16 (TRN+) - I35-4 (TRNL)	Always	Below 1 Ω
I40-14 (LE1) - I35-21 (E1)	Always	Below 1 Ω
I40-16 (TRN+) or I35-4 (TRNL) - I40-14 (LE1) or I35-21 (E1)	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS AND CONNECTOR

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH (Click here)

Result	Proceed to
B1507 and B1508 are output	A
B1507 and B1508 are not output	B

Result	Proceed to
RH side turn signal light does not illuminate	A
LH side turn signal light does not illuminate	B

Condition	Specified Condition
Battery positive (+) →5 (B) Battery positive (-) →4 (E)	Turn signal light illuminates

Result	Proceed to
OK (for Outer Rear View Mirror)	A
OK (for Front Fender)	B
NG (for Halogen Headlight)	C
NG (for LED Headlight)	D
NG (for Halogen Headlight and LED Headlight)	E

Condition	Specified Condition
Battery positive (+) →4 (TRN) Battery positive (-) →3 (E)	Turn signal light illuminates