Engine control system malfunction

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.

1. 1
   Check harness and connector (momentary interruption)
2. 2
   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).

   

Perform the above inspection before removing the sensor and connector.

1. 1
   Check dtc for engine control system
2. 2
   Clear the dtc (engine control system).
3. 3
   Check the dtc (engine control system).

Result

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

1. 1
   Reconfirm dtc
2. 2
   Clear the dtc (see page bc-47).
3. 3
   Perform a road test.
4. 4
   Check if the same dtc is recorded (see page bc-47).

Result