Toyota RAV4 manuals

Toyota RAV4 Service Manual: Engine immobiliser system malfunction

Toyota RAV4. Engine immobiliser system malfunction


Description

This dtc is output when one of the following occurs: 1) the ecm detects errors in its own communications with the transponder key ecu; 2) the ecm detects errors in the communication lines; or 3) the ecu communication id between the transponder key ecu and ecm is different and an engine start is attempted. Before troubleshooting for this dtc, make sure no transponder key ecu dtcs are present. If present, troubleshoot the transponder key ecu dtcs first.

Toyota RAV4. Engine immobiliser system malfunction


Wiring diagram

Toyota RAV4. Engine immobiliser system malfunction


Inspection procedure

  1. Check for dtc

  1. Delete the dtc (see page ei-18).
  2. Recheck for dtc.

Ok: b2799 output does not reoccur.



  1. Check wire harness (transponder key ecu - ecm)

Toyota RAV4. Check wire harness (transponder key ecu - ecm)


  1. Disconnect the e46 ecu connector.
  2. Disconnect the a9 ecm connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance




  1. Check transponder key ecu (operation)

  1. Temporarily replace the transponder key ecu with a new or normally functioning one.
  2. Check that then engine starts normally.

Ok: engine starts normally.



End (transponder key ecu is defective)

Communication malfunction no. 1
Description This dtc is output when a communication error occurs between the transponder key amplifier and transponder key ecu. Some possible reasons for the communication error are: 1) 2 or ...

Security indicator light circuit
Description When the transponder key is registered, the transponder key ecu indicates the key registration condition by lighting up, blinking or turning off the security indicator. Wiring diagram ...

Other materials:

Selecting the audio source
Switching between audio sources such as radio and cd are explained in this section. Changing audio source Press the “audio” button to display the audio source selection screen. If the audio source selection screen is not displayed, press the “audio” button again. Select the d ...

Cooling fan relay
On-vehicle inspection Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove engine room no. 2 Relay block cover Inspect ...

All-wheel drive lock switch (awd models)
All-wheel drive lock mode can be used when a large amount of drive power needs to be applied to all the wheels, such as when the vehicle gets stuck in mud and you need to free it. Press the switch. The torque of the engine is distributed to the rear wheels to the maximum extent possible in ac ...

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