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:

Open in one side of can branch line
Description If 2 or more ecus and/or sensors do not appear on the intelligent tester's "bus check" screen via the can vim, one side of the can branch wire may be open. (One side of the canh [branch wire] /canl [branch wire] of the ecu and/or sensor is open.) Wiring diagram ...

Bleeding
Hint: If any work is performed on the brake system or if air in the brake lines is suspected, bleed air from the brake system. Notice: Wash off brake fluid immediately if it comes in contact with any painted surface. Remove cowl top ventilator louver bracket lh Detach the 6 claws and ...

Terminals of ecu
Check sliding roof drive gear subassembly (sliding roof ecu) Disconnect the p6 ecu connector. Measure the resistance and voltage of the wire harness side connector. Reconnect the p6 ecu connector. Measure the voltage of the connector. If the result is not as speci ...

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