Toyota RAV4 manuals

Toyota RAV4 Service Manual: Headlight (hi-beam) circuit

Description

The body ecu controls the headlight relay, no. 2 Daytime running light relay (marking: drl no. 2) And no. 4 Daytime running light relay (marking: drl no. 4).

Wiring diagram

Toyota RAV4. Headlight (hi-beam) circuit


Toyota RAV4. Headlight (hi-beam) circuit


Inspection procedure

  1. Perform active test by intelligent tester

  1. Connect the intelligent tester (with can vim) to the dlc3.
  2. Turn the ignition switch to the on position and press the intelligent tester main switch on.
  3. Select the item below in the active test and then check the relay operation.

Toyota RAV4. Perform active test by intelligent tester


Ok: headlight (high) comes on.


  1. Check headlight (low)

  1. Check that the headlight (low) comes on when the light control switch is on (head).

Ok: headlight (low) comes on.



  1. Inspect fuse (head lh, head rh)

  1. Remove the head lh fuse and head rh fuse from the engine room no. 2 Relay block.
  2. Measure the resistance of the fuses.

Standard resistance: below 1




  1. Inspect daytime running light relay (marking: drl no. 2, Drl no. 3, Drl no. 4)


  1. Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from the engine room no. 2 Relay block.
  2. Measure the resistance of the relays.

Standard resistance:

No. 2, No. 4


No. 3




  1. Inspect headlight bulb (high)

Toyota RAV4. Inspect headlight bulb (high)


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



  1. Check wire harness (main body ecu - battery)

Toyota RAV4. Check wire harness (main body ecu - battery)


  1. Disconnect the e16 main body ecu connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Check wire harness (main body ecu)

Toyota RAV4. Check wire harness (main body ecu)


  1. Remove the headlight relay from the engine room no. 2 Relay block.
  2. Disconnect the e15 main body ecu connector.
  3. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Check wire harness (headlight relay - no. 3 Daytime running light relay and body ground)

Toyota RAV4. Check wire harness (headlight relay - no. 3 Daytime running light relay and body ground)


  1. Remove the no. 3 Daytime running light relay from the engine room no. 2 Relay block.
  2. Measure the voltage and resistance of the relay block.

Standard voltage


Standard resistance




  1. Check wire harness (battery - no. 2 Daytime running light relay, bulb and body ground)

Toyota RAV4. Check wire harness (battery - no. 2 Daytime running light relay, bulb and body ground)


  1. Remove the no. 2 Daytime running light relay from the engine room no. 2 Relay block.
  2. Remove the a14 and a22 headlight bulb connectors.
  3. Measure the voltage and resistance of the relay block.

Standard voltage


Standard resistance




Replace instrument panel junction block (main body ecu)

  1. Check wire harness (main body ecu - dimmer switch)

Toyota RAV4. Check wire harness (main body ecu - dimmer switch)


  1. Disconnect the e15 main body ecu connector.
  2. Disconnect the e12 headlight dimmer switch connector.
  3. Disconnect the ij instrument panel junction block connector.
  4. Measure the resistance of the wire harness side connectors.

Standard resistance




  1. Inspect headlight dimmer switch

Toyota RAV4. Inspect headlight dimmer switch


  1. Remove the headlight dimmer switch.
  2. Measure the resistance of the switch.

Standard resistance



Repair or replace harness and connector (headlight dimmer switch - body ground)

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