Toyota RAV4 Service Manual: Engine control system malfunction

Description

If a malfunction in the engine control system is detected, the operations of vsc and trc are prohibited by the fail-safe function. When the signals from the engine are input normally, the fail-safe is canceled and the dtc is not stored.

Inspection procedure

1. Check harness and connector (momentary interruption)

1. Using the data list of the intelligent tester, check for any momentary interruption in the wire harness corresponding to the dtc (see page bc-23).

Ok: there are no momentary interruptions.

Hint:

Perform the above inspection before removing the sensor and connector.

2. Check dtc for engine control system

1. Clear the dtc (engine control system).
2. Check the dtc (engine control system).

Result

Repair engine control system

3. Repair or replace harness and connector (ecm - skid control ecu)

4. Reconfirm dtc

1. Clear the dtc (see page bc-47).
2. Perform a road test.
3. Check if the same dtc is recorded (see page bc-47).

Result

End