Toyota RAV4 manuals

Toyota RAV4 Service Manual: Main body ecu communication stop mode

Toyota RAV4 Service Manual / Can communication / Fail-safe chart / Main body ecu communication stop mode

Description

Toyota RAV4. Main body ecu communication stop mode


Wiring diagram

Toyota RAV4. Main body ecu communication stop mode


Inspection procedure

Notice:

Hint:

Operating the ignition switch, any switches or any doors triggers related ecu and sensor communication with the can, which causes resistance variation.

  1. Check can bus line for disconnection (main body ecu branch wire)

Toyota RAV4. Check can bus line for disconnection (main body ecu branch wire)


  1. Disconnect the e17 main body ecu connector.
  2. Measure the resistance of the wire harness side connector.

Standard resistance




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

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


  1. Disconnect the 1e and 1b junction block connectors.
  2. Measure the resistance of the wire harness side connector.

Standard resistance


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

Standard voltage




Replace instrument panel junction block (main body ecu)

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Other materials:

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Precaution
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