Lighting System Turn Signal Light Circuit

Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Lighting. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT VEHICLE CONDITION

CHECK OPERATION OF TURN SIGNAL LIGHT

INSPECT FUSE (ECU-IG2, HAZ)

CHECK WIRE HARNESS (BATTERY - TURN SIGNAL FLASHER RELAY)

INSPECT HEADLIGHT DIMMER SWITCH

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - DIMMER SWITCH AND BODY GROUND)

INSPECT BULB (FRONT TURN SIGNAL BULB)

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - FRONT TURN SIGNAL LIGHT)

INSPECT DOOR MIRROR TURN SIGNAL LIGHT

CHECK WIRE HARNESS (OUTER REAR VIEW MIRROR - TURN SIGNAL FLASHER RELAY)

INSPECT REAR COMBINATION LIGHT

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - REAR COMBINATION LIGHT)

CHECK OPERATION OF TURN SIGNAL LIGHT

INSPECT FUSE (ECU-IG2, HAZ)

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - BATTERY)

INSPECT HEADLIGHT DIMMER SWITCH

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - DIMMER SWITCH)

INSPECT FRONT TURN SIGNAL LIGHT BULB

CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - FRONT TURN SIGNAL LIGHT)

INSPECT FRONT SIDE TURN SIGNAL LIGHT BULB

CHECK WIRE HARNESS (JUNCTION BLOCK - FRONT SIDE TURN SIGNAL LIGHT)

INSPECT REAR COMBINATION LIGHT

CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - REAR COMBINATION LIGHT)

INSPECT DOOR MIRROR TURN SIGNAL LIGHT

CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - OUTER REAR VIEW MIRROR)

INSPECT FRONT SIDE TURN SIGNAL LIGHT BULB

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - FRONT SIDE TURN SIGNAL LIGHT)

LIGHTING SYSTEM - Turn Signal Light Circuit


DESCRIPTION

The turn signal flasher relay (marking for LHD: turn signal flasher) turns on when it receives signals from the headlight dimmer switch integrated with the turn signal switch, causing the turn signal lights to flash.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit


INSPECTION PROCEDURE

1.INSPECT VEHICLE CONDITION

  1. Check the vehicle condition.

    Result
    Result
    		Proceed to
    RHD
    		A
    LHD
    		B


B
Go to step 13
A


2.CHECK OPERATION OF TURN SIGNAL LIGHT

  1. When the turn signal light switch is operated, check that the appropriate turn signal light flashes.

    Result
    Condition
    		Proceed to
    All lights do not flash
    		A
    Front turn signal light (LH or RH) does not flash
    		B
    Door mirror turn signal light (LH or RH) does not flash*2
    		C
    Rear turn signal light (LH or RH) does not flash
    		D
    Front side turn signal light (LH or RH) does not flash*1
    		E
    *1: w/o Door Mirror Turn Signal Light
    *2: w/ Door Mirror Turn Signal Light


B
Go to step 7

C
Go to step 9

D
Go to step 11

E
Go to step 26
A


3.INSPECT FUSE (ECU-IG2, HAZ)

  1. Remove the ECU-IG2 fuse from the instrument panel junction block.

  1. Remove the HAZ fuse from the engine room No. 1 relay block.

  1. Measure the resistance of the fuse.

    Standard resistance:
    Below 1 Ω


NG
REPLACE FUSE
OK


4.CHECK WIRE HARNESS (BATTERY - TURN SIGNAL FLASHER RELAY)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E81-1 (IG) - Body ground
    		Ignition switch on (IG)
    		11 to 14 V
    E81-4 (B) - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


5.INSPECT HEADLIGHT DIMMER SWITCH
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the headlight dimmer switch.

  1. Measure the resistance of the switch.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    16 (TR) - 19 (EL)
    		Right turn
    		Below 1 Ω
    18 (TL) - 19 (EL)
    		Left turn
    		Below 1 Ω
    16 (TR) - 19 (EL)
    		Neutral
    		10 kΩ or higher
    18 (TL) - 19 (EL)
    		Neutral
    		10 kΩ or higher


NG
REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY
OK


6.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - DIMMER SWITCH AND BODY GROUND)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the E15 headlight dimmer switch connector.

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E15-16 (TR) - E81-6 (ER)
    		Below 1 Ω
    E15-16 (TR) or E81-6 (ER) - Body ground
    		10 kΩ or higher
    E15-18 (TL) - E81-5 (EL)
    		Below 1 Ω
    E15-18 (TL) or - E81-5 (EL) - Body ground
    		10 kΩ or higher
    E15-19 (EL) - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE TURN SIGNAL FLASHER RELAY

7.INSPECT BULB (FRONT TURN SIGNAL BULB)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the front turn signal light bulb.

  1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    OK:
    Bulb illuminates.


NG
REPLACE FRONT TURN SIGNAL LIGHT BULB
OK


8.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - FRONT TURN SIGNAL LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the A16 (for LH) and A37 (for RH) front turn signal light connectors.

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    E81-3 (LL) - A16-2
    		Below 1 Ω
    E81-3 (LL) or A16-2 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    E81-2 (LR) - A37-2
    		Below 1 Ω
    E81-2 (LR) or A37-2 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - BODY GROUND)

9.INSPECT DOOR MIRROR TURN SIGNAL LIGHT


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the door mirror turn signal light.

  1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and then check that the light comes on.

    OK:
    Light comes on.


NG
REPLACE DOOR MIRROR TURN SIGNAL LIGHT
OK


10.CHECK WIRE HARNESS (OUTER REAR VIEW MIRROR - TURN SIGNAL FLASHER RELAY)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the H11 (for LH) and G10 (for RH) outer rear view mirror connectors.

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    E81-3 (LL) - H11-10
    		Below 1 Ω
    E81-3 (LL) or H11-10 - Body ground
    		10 kΩ or higher
    H11-11 - Body ground
    		Below 1 Ω
    for RH side:
    Tester Connection
    		Specified Condition
    E81-2 (LR) - G10-10
    		Below 1 Ω
    E81-2 (LR) or G10-10 - Body ground
    		10 kΩ or higher
    G10-11 - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE OUTER REAR VIEW MIRROR

11.INSPECT REAR COMBINATION LIGHT
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the rear combination light.

  1. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    HINT:
    Be sure to check the bulb first.
    OK:
    Bulb illuminates.


NG
REPLACE REAR COMBINATION LIGHT
OK


12.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - REAR COMBINATION LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the K13 (for RH) and K15 (for LH) rear combination light connectors.

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    E81-3 (LL) - K15-5
    		Below 1 Ω
    E81-3 (LL) or K15-5 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    E81-2 (LR) - K13-5
    		Below 1 Ω
    E81-2 (LR) or K13-5 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - BODY GROUND)

13.CHECK OPERATION OF TURN SIGNAL LIGHT

  1. When the turn signal light switch is operated, check that the appropriate turn signal light flashes.

    Result
    Condition
    		Proceed to
    All lights do not flash
    		A
    Front turn signal light (LH or RH) does not flash
    		B
    Front side turn signal light (LH or RH) does not flash*1
    		C
    Rear turn signal light (LH or RH) does not flash
    		D
    Door mirror turn signal light (LH or RH) does not flash*2
    		E
    *1: w/o Door Mirror Turn Signal Light
    *2: w/ Door Mirror Turn Signal Light


B
Go to step 18

C
Go to step 20

D
Go to step 22

E
Go to step 24
A


14.INSPECT FUSE (ECU-IG2, HAZ)

  1. Remove the ECU-IG2 fuse from the instrument panel junction block.

  1. Remove the HAZ fuse from the engine room No. 1 relay block.

  1. Measure the resistance of the fuse.

    Standard resistance:
    Below 1 Ω


NG
REPLACE FUSE
OK


15.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - BATTERY)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the turn signal flasher relay from the instrument panel junction block.

  1. Measure the voltage of the relay block.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    Turn signal flasher relay terminal 1 (IG) - Body ground
    		Ignition switch on (IG)
    		11 to 14 V
    Turn signal flasher relay terminal 4 (+B) - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


16.INSPECT HEADLIGHT DIMMER SWITCH
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the headlight dimmer switch.

  1. Measure the resistance of the switch.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    13 (TR) - 12 (EL)
    		Right turn
    		Below 1 Ω
    15 (TL) - 12 (EL)
    		Left turn
    		Below 1 Ω
    13 (TR) - 12 (EL)
    		Neutral
    		10 kΩ or higher
    15 (TL) - 12 (EL)
    		Neutral
    		10 kΩ or higher


NG
REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY
OK


17.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - DIMMER SWITCH)

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the turn signal flasher relay from the instrument panel junction block.

  1. Disconnect the E15 headlight dimmer switch connector.

  1. Measure the resistance of the wire harness side connectors and junction block.

    Tester Connection
    		Specified Condition
    Turn signal flasher relay terminal 5 (EL) - E15-15 (TL)
    		Below 1 Ω
    Turn signal flasher relay terminal 5 (EL) or E15-15 (TL) - Body ground
    		10 kΩ or higher
    Turn signal flasher relay terminal 6 (ER) - E15-13 (TR)
    		Below 1 Ω
    Turn signal flasher relay terminal 6 (ER) or E15-13 (TR) - Body ground
    		10 kΩ or higher
    E15-12 (EL) - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE TURN SIGNAL FLASHER RELAY

18.INSPECT FRONT TURN SIGNAL LIGHT BULB
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the front turn signal light bulb.

  1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    OK:
    Bulb illuminates.


NG
REPLACE FRONT TURN SIGNAL LIGHT BULB
OK


19.CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - FRONT TURN SIGNAL LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the turn signal flasher relay.

  1. Disconnect the A16 (for LH) and A37 (for RH) front turn signal light connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 3 (LL) - A16-2
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 3 (LL) or A16-2 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 2 (LR) - A37-2
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 2 (LR) or A37-2 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - BODY GROUND)

20.INSPECT FRONT SIDE TURN SIGNAL LIGHT BULB
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the front side turn signal light bulb.

  1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    OK:
    Bulb illuminates.


NG
REPLACE FRONT SIDE TURN SIGNAL LIGHT BULB
OK


21.CHECK WIRE HARNESS (JUNCTION BLOCK - FRONT SIDE TURN SIGNAL LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the A14 (for LH) and A39 (for RH) front side turn signal light connectors.

  1. Remove the turn signal flasher relay.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 3 (LL) - A14-2
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 3 (LL) or A14-2 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 2 (LR) - A39-2
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 2 (LR) or A39-2 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (FRONT SIDE TURN SIGNAL LIGHT - BODY GROUND)

22.INSPECT REAR COMBINATION LIGHT
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the rear combination light.

  1. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    HINT:
    Be sure to check the bulb first.
    OK:
    Bulb illuminates.


NG
REPLACE REAR COMBINATION LIGHT
OK


23.CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - REAR COMBINATION LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the K13 (for RH) and K15 (for LH) rear combination light connectors.

  1. Remove the turn signal flasher relay.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 3 (LL) - K15-5
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 3 (LL) or K15-5 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 2 (LR) - K13-5
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 2 (LR) or K13-5 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - BODY GROUND)

24.INSPECT DOOR MIRROR TURN SIGNAL LIGHT


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the door mirror turn signal light.

  1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and then check that the light comes on.

    OK:
    Light comes on.


NG
REPLACE DOOR MIRROR TURN SIGNAL LIGHT
OK


25.CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK - OUTER REAR VIEW MIRROR)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the H11 (for LH) and G10 (for RH) outer rear view mirror connectors.

  1. Remove the turn signal flasher relay.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 3 (LL) - H11-10
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 3 (LL) or H11-10 - Body ground
    		10 kΩ or higher
    H11-11 - Body ground
    		Below 1 Ω
    for RH side:
    Tester Connection
    		Specified Condition
    Junction block turn signal flasher relay terminal 2 (LR) - G10-10
    		Below 1 Ω
    Junction block turn signal flasher relay terminal 2 (LR) or G10-10 - Body ground
    		10 kΩ or higher
    G10-11 - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE OUTER REAR VIEW MIRROR

26.INSPECT FRONT SIDE TURN SIGNAL LIGHT BULB
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Remove the front side turn signal light bulb.

  1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the bulb illuminates.

    OK:
    Bulb illuminates.


NG
REPLACE FRONT SIDE TURN SIGNAL LIGHT BULB
OK


27.CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - FRONT SIDE TURN SIGNAL LIGHT)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Lighting.Lighting System.Lighting System Turn Signal Light Circuit

  1. Disconnect the A14 (for LH) and A39 (for RH) front side turn signal light connectors.

  1. Disconnect the E81 turn signal flasher relay connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    for LH side:
    Tester Connection
    		Specified Condition
    E81-3 (LL) - A14-2
    		Below 1 Ω
    E81-3 (LL) or A14-2 - Body ground
    		10 kΩ or higher
    for RH side:
    Tester Connection
    		Specified Condition
    E81-2 (LR) - A39-2
    		Below 1 Ω
    E81-2 (LR) or A39-2 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPAIR OR REPLACE HARNESS AND CONNECTOR (FRONT SIDE TURN SIGNAL LIGHT - BODY GROUND)