Faulty Signal

Faulty signal

Checking fan motor passenger compartment temperature sensor




- Ignition off.
- Remove passenger compartment temperature sensor according to Replacing passenger compartment temperature sensor (ECC) Removal and Replacement. Leave the sensor connected.
- Ignition on.
- Start blower fan on manual speed, the sensor fan motor should start.
Check that fan motor in the temperature sensor is operating.





Is the fan working?

Yes - Intermittent fault.

No - Checking components and cables

-------------------------------------------------

Checking components and cables
Check that the fan motor in the passenger compartment temperature sensor is OK, the fan turns easily and the motor is not short-circuited internally.
Remedy as necessary.

Other information:
- To access/replace the passenger compartment temperature sensor, refer to Replacing passenger compartment temperature sensor (ECC) Removal and Replacement.










Continue - Verification
DONE

-------------------------------------------------

Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect connectors, reinstall components. Leave the temperature sensor loose but connected to the system.
- Ignition on.
- Start blower fan on manual speed, the sensor fan motor should start.
Check that the fan motor in the passenger compartment temperature sensor is operating.





Is the fan working?

Yes - VERIFIED

No - VERIFICATION FAILED

------------------------

VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

------------------------

Attempt New Test - Checking fan motor passenger compartment temperature sensor

-------------------------------------------------

Intermittent fault.
Fault-tracing indicates that the ECC control module registered a fault previously on the fan motor but the fault is now no longer present. Check that the fan motor in the passenger compartment temperature sensor is OK, the fan turns easily and that there is nothing in the way of the fan to stop it turning.
Remedy as necessary.

Other information:
- To access/replace the passenger compartment temperature sensor, refer to Replacing passenger compartment temperature sensor (ECC) Removal and Replacement.






Continue - Fault-tracing information
DONE

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

------------------------

Attempt New Test - Checking fan motor passenger compartment temperature sensor

-------------------------------------------------