Faulty Signal

Faulty signal

Replacing the component
The fault has probably occurred as a result of a defective potentiometer or a short-circuit in the potentiometer. If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the control module or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. If the fault recurs, replace the control module.
If the fault persists, replace the climate control module (CCM). The potentiometer cannot be replaced as a separate part.

Other information:
- To access or replace the control module, see Climate control module (CCM), replacing Service and Repair.



Continue - Verification

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Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
- Blower motor on.
Check that damper motor position changes by activating and de-activating from control panel. The values given below are the standard values that the damper motor positions should give.
- Left/right temperature damper motor and defroster, 0-100%
- Recirculation damper motor, 40-100%
- Floor/ventilation damper motor, floor only approximately 39%, ventilation only approximately 87% and floor/ventilation approximately 71%.





Does damper motor work?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Information

VERIFIED - Fault Found

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - Replacing the component

FAULT-TRACING FAILED - No Fault Found

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