Internal Fault

Internal fault

Checking the function
The climate control module (CCM) has registered an internal fault in the air quality sensor. 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 air quality sensor.
In the event of a permanent fault, replace the air quality sensor. See Air quality sensor, replacing Service and Repair.





Select "Continue" when the fault has been remedied.

Continue - Verification

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Verification




Verification

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








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on
- Check that the value from the air quality sensor is within the permitted range.
The value should be between 4% and 96%.









Are the values correct?

Yes - Verification completed

No - Fault-tracing information

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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

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Attempt New Test - Checking the function

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