METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: B150718; Turn Signal Light Circuit Current Below Threshold; 2023 - 2024 MY RAV4 RAV4 HV [10/2022

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM1000000026O6M
Model Year Start: 2023	Model: RAV4	Prod Date Range: [10/2022 - ]
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: B150718; Turn Signal Light Circuit Current Below Threshold; 2023 - 2024 MY RAV4 RAV4 HV [10/2022 - ]

DTC

B150718

Turn Signal Light Circuit Current Below Threshold

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B150718	Turn Signal Light Circuit Current Below Threshold	Diagnosis Condition: Auxiliary battery voltage is 10 V or more Malfunction Status: Open in front turn signal light circuit Open in side turn signal light circuit Open in rear turn signal light circuit	Side turn signal light assembly1 Front turn signal and parking light bulb (front turn signal bulb)2 Front turn signal light bulb (front turn signal bulb)3 Outer rear view mirror assembly1 Rear combination light socket and wire Combination meter assembly Harness or connector

*1: w/ Side Turn Signal Light
*2: w/ Side Marker Light
*3: w/o Side Marker Light

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
Inspect the bulbs before performing the following procedure.

PROCEDURE

1.	INSPECT LIGHTS

(a) Inspect the illumination of each turn signal light.

Result	Proceed to
Front turn signal light LH does not blink.	A
Front turn signal light RH does not blink.	B
Side turn signal light LH does not blink (w/ Side Turn Signal Light).	C
Side turn signal light RH does not blink (w/ Side Turn Signal Light).	D
Rear turn signal light LH and side turn signal light LH do not blink (w/ Side Turn Signal Light).	E
Rear turn signal light RH and side turn signal light RH do not blink (w/ Side Turn Signal Light).	F
Rear turn signal light LH does not blink.	G
Rear turn signal light RH does not blink.	H

2.	CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT TURN SIGNAL LIGHT SOCKET)

*1: for Bulb Type Turn Signal Light
*2: for LED Type Turn Signal Light
*3: for 7 Inch Multi-information Display Type
*4: for 12.3 Inch Multi-information Display Type

(a) Disconnect the G19*3 or G140*4 combination meter assembly connector.

(b) Disconnect the A60*1 or A98*2 front turn signal light socket connector.

Standard Resistance:

for 7 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
G19-1 (LL) - A60-1 (B)1 or A98-4 (B)2	Always	Below 1 Ω

for 12.3 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
G140-5 (LL) - A60-1 (B)1 or A98-4 (B)2	Always	Below 1 Ω

OK (for LED Type Turn Signal Light)

GO TO STEP 4

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK (for Bulb Type Turn Signal Light)

3.	INSPECT FRONT TURN SIGNAL LIGHT SOCKET

(a) Remove the front turn signal light socket.

for Triple Beam Headlight:

Click here

for Single Beam Headlight:

Click here

*a	Component without harness connected (Front Turn Signal Socket)

(b) Apply auxiliary battery voltage to the front turn signal light socket and check that the light illuminates.

Standard Voltage:

Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 1 (B)

Auxiliary battery negative (-) → Terminal 2 (E)

Turn signal light illuminates

REPLACE COMBINATION METER ASSEMBLY

REPLACE FRONT TURN SIGNAL LIGHT SOCKET

for Triple Beam Headlight:

Click here

for Single Beam Headlight:

Click here

4.	INSPECT HEADLIGHT ASSEMBLY LH

(a) Remove the headlight assembly LH.

Click here

(b) Inspect the headlight assembly LH.

Click here

REPLACE COMBINATION METER ASSEMBLY

REPLACE HEADLIGHT ASSEMBLY LH

5.	CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT TURN SIGNAL LIGHT SOCKET)

*1: for Bulb Type Turn Signal Light
*2: for LED Type Turn Signal Light
*3: for 7 Inch Multi-information Display Type
*4: for 12.3 Inch Multi-information Display Type

(a) Disconnect the G19*3 or G140*4 combination meter assembly connector.

(b) Disconnect the A59*1 or A96*2 front turn signal light socket connector.

Standard Resistance:

for 7 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
G19-2 (LR) - A59-1 (B)1 or A96-4 (B)2	Always	Below 1 Ω

for 12.3 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
G140-6 (LR) - A59-1 (B)1 or A96-4 (B)2	Always	Below 1 Ω

OK (for LED Type Turn Signal Light)

GO TO STEP 7

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK (for Bulb Type Turn Signal Light)

6.	INSPECT FRONT TURN SIGNAL LIGHT SOCKET

(a) Remove the front turn signal light socket.

for Triple Beam Headlight:

Click here

for Single Beam Headlight:

Click here

*a	Component without harness connected (Front Turn Signal Socket)

(b) Apply auxiliary battery voltage to the front turn signal light socket and check that the light illuminates.

Standard Voltage:

Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 1 (B)

Auxiliary battery negative (-) → Terminal 2 (E)

Turn signal light illuminates

REPLACE COMBINATION METER ASSEMBLY

REPLACE FRONT TURN SIGNAL LIGHT SOCKET

for Triple Beam Headlight:

Click here

for Single Beam Headlight:

Click here

7.	INSPECT HEADLIGHT ASSEMBLY RH

(a) Remove the headlight assembly RH.

Click here

(b) Inspect the headlight assembly RH.

Click here

REPLACE COMBINATION METER ASSEMBLY

REPLACE HEADLIGHT ASSEMBLY RH

8.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Remove the outer rear view mirror assembly LH.

Click here

(b) Inspect the outer rear view mirror assembly LH.

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.	INSPECT SIDE TURN SIGNAL LIGHT ASSEMBLY LH

(a) Remove the side turn signal light assembly LH.

Click here

(b) Inspect the side turn signal light assembly LH.

Click here

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY LH

10.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Remove the outer rear view mirror assembly RH.

Click here

(b) Inspect the outer rear view mirror assembly RH.

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.	INSPECT SIDE TURN SIGNAL LIGHT ASSEMBLY RH

(a) Remove the side turn signal light assembly RH.

Click here

(b) Inspect the side turn signal light assembly RH.

Click here

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY RH

12.	CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT SOCKET AND WIRE LH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the N18 rear combination light socket and wire LH connector.

(b) Disconnect the G19*1 or G140*2 combination meter assembly connector.

*1: for 7 Inch Multi-information Display Type
*2: for 12.3 Inch Multi-information Display Type

Standard Resistance:

for 7 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
N18-4 (TRN) - G19-5 (TRNL)	Always	Below 1 Ω
N18-3 (E) - Body ground	Always	Below 1 Ω

for 12.3 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
N18-4 (TRN) - G140-22 (TRNL)	Always	Below 1 Ω
N18-3 (E) - Body ground	Always	Below 1 Ω

REPLACE COMBINATION METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.	CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT SOCKET AND WIRE RH - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the M14 rear combination light socket and wire RH connector.

(b) Disconnect the G19*1 or G140*2 combination meter assembly connector.

*1: for 7 Inch Multi-information Display Type
*2: for 12.3 Inch Multi-information Display Type

Standard Resistance:

for 7 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
M14-4 (TRN) - G19-6 (TRNR)	Always	Below 1 Ω
M14-3 (E) - Body ground	Always	Below 1 Ω

for 12.3 Inch Multi-information Display Type

Tester Connection	Condition	Specified Condition
M14-4 (TRN) - G140-21 (TRNR)	Always	Below 1 Ω
M14-3 (E) - Body ground	Always	Below 1 Ω

REPLACE COMBINATION METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

14.	INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE LH

(a) Disconnect the N18 rear combination light socket and wire LH connector.

*a	Component without harness connected (Rear Combination Light Socket and Wire LH)

(b) Apply auxiliary battery voltage to the rear combination light socket and wire LH and check that the light illuminates.

OK:

Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 4 (TRN)

Auxiliary battery negative (-) → Terminal 3 (E)

Turn signal light illuminates

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE LH

15.	INSPECT REAR COMBINATION LIGHT SOCKET AND WIRE RH

(a) Disconnect the M14 rear combination light socket and wire RH connector.

*a	Component without harness connected (Rear Combination Light Socket and Wire RH)

(b) Apply auxiliary battery voltage to the rear combination light socket and wire RH and check that the light illuminates.

Standard Voltage:

Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 4 (TRN)

Auxiliary battery negative (-) → Terminal 3 (E)

Turn signal light illuminates

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE RH

DESCRIPTION

Diagnosis Condition:

Malfunction Status:

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

for 7 Inch Multi-information Display Type

for 12.3 Inch Multi-information Display Type

for 7 Inch Multi-information Display Type

for 12.3 Inch Multi-information Display Type

for 7 Inch Multi-information Display Type

for 12.3 Inch Multi-information Display Type

for 7 Inch Multi-information Display Type

for 12.3 Inch Multi-information Display Type