Fault Conditions

P1264
Throttle Open when Pedal is Released.

Fault symptoms
- Engine stalls.
- CHECK ENGINE.
- Incorrect idle speed.
- Cruise control inoperative.

On-Board Diagnostics
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- Engine running.

Fault criteria:
- Throttle position exceeds the maximum allowed when pedal is released.

Dependents:
- None.

System reaction to a fault:
- Fuel shut-off. Main relay turned off. Throttle control in limp-home mode. Limp-home solenoid will activate 5 times in succession each time the ignition is turned on until the fault is rectified and the trouble codes cleared.





OK report:
- Accelerator pedal has been depressed at some time and then fully released. 120s has expired since then without fault criteria being fulfilled.

Fault handling: See "Fault diagnosis, general" for more information.
- CHECK ENGINE goes on immediately and can be turned off only by clearing the trouble codes.

Diagnostic help
The throttle has been open in spite of the driver having released the accelerator. A mechanical fault is preventing the throttle from closing.

Check the wiring
Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuit in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.

Proceed to Diagnostic Procedures Checking the Mechanical Operation of the Flap