Toyota RAV4 manuals

Toyota RAV4 Service Manual: Light control switch circuit

Description

This circuit detects the state of the headlight dimmer switch.

Wiring diagram

Toyota RAV4. Light control switch circuit


Inspection procedure

  1. Read value of intelligent tester (main body ecu)

  1. Connect the intelligent tester to the dlc3.
  2. Turn the ignition switch on and press the intelligent tester main switch on.
  3. Select the items below in the data list, and read the displays on the intelligent tester.

Toyota RAV4. Read value of intelligent tester (main body ecu)


Ok: on is displayed on the intelligent tester screen.


  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



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

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


  1. Disconnect the e12 headlight dimmer switch connector.
  2. Disconnect the ie and ij instrument panel junction block connectors.
  3. Disconnect the e15 and e17 main body ecu connectors.
  4. Measure the resistance of the wire harness side connectors.

Standard resistance



Replace instrument panel junction block (main body ecu)

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Other materials:

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Mechanical system tests
Stall speed test Hint: This test is to check the overall performance of the engine and transaxle. Notice: Do not perform the stall speed test longer than 5 seconds. To ensure safety, perform this test in an open and level area that provides good traction. The stall speed test sh ...

Precaution
If any of following conditions are met, keep engine idling with a/c on (engine speed at less than 2000 rpm) for at least 1 minute: Refrigerant gas has been refilled or a/c parts have been replaced. A long time has elapsed since the engine was stopped. Notice: If the engine s ...

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