Faulty Signal. Permanent Fault
FAULTY SIGNAL. PERMANENT FAULTChecking the Air Conditioning System
- Is the air conditioning (A/C) system OK?
Yes:
- Try a new air conditioning (A/C) pressure sensor.
- Then proceed to Verification section below.
No:
- Remedy as needed, refer to Heating and Air Conditioning.
Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows:
- Ignition OFF.
- Air conditioning (A/C) pressure sensor and engine control module (ECM) connected.
- START the engine and idle it.
- A/C button ON.
- Blower fan ON.
- Wait until the air conditioning (A/C) compressor has started.
- Read off diagnostic trouble codes (DTCs).
If EFI-225 is stored it should have Intermittent Fault Status.
Alternative Intermittent:
- Fault corrected.
Alternative Permanent:
- Proceed to test step below.
Fault-Tracing Information
- The verification result shows that the fault persists.
- Do you want to exit fault-tracing?
Yes:
- Fault not corrected.
No:
- Return to Checking the Air Conditioning System section above.