Signal Too High. Intermittent Fault

Checking Cables And Terminals
- Check accelerometer and engine control module (ECM) connectors for loose connections, contact resistance and oxidation.
- Check cable between accelerometer terminal 1 and engine control module # B1 for an intermittent open-circuit.
- Check cable between accelerometer terminal 2 and engine control module # B28 for an intermittent open-circuit.
- Check cable between accelerometer terminal 3 and engine control module # B32 for an intermittent short-circuit to supply voltage or an intermittent open-circuit.
- The accelerometer power cable is connected inside the engine control module to the tank pressure sensor and A/C pressure sensor power cables. If anything happens to any of these cables all three will be affected. A/C pressure sensor wiring is pre-routed, even on cars without one, and should always be checked.

Check Wiring Between:
- Accelerometer terminal 1 and engine control module # B1.
- A/C pressure sensor terminal 3 and engine control module # B29.
- Tank pressure sensor terminal 1 and engine control module # B15.
- For an intermittent short-circuit to supply voltage or an intermittent short-circuit to supply voltage.

Fault-tracing Information
- For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.
- Do you want to repeat fault-tracing?

Yes:
^ Return to Checking Cables And Terminals section above.

No:
^ Operation done.