Test Driving

Test driving

Testing the heater unit

Note! Diagnostic trouble code (DTC) HEA-898 is stored during manufacture of the control module to ensure that the heater is tested at the factory before the car is delivered to the customer. In other words this diagnostic trouble code (DTC) cannot be set by the control module itself, only by the manufacturer. The diagnostic trouble code (DTC) is automatically erased at the factory when the unit is tested. When the unit is installed as a replacement partthe diagnostic trouble code (DTC) must be erased manually after the heater has been tested in the car.




- Ignition on (with additional heater start the engine).

Note! On cars where the heater functions as a parking heater there is no +15 voltage supply to the control module. The heater is activated using the timer stop and start buttons instead of VIDA vehicle communication. Individual components and functions cannot be activated when the +15 voltage supply is absent.

- Activate the heater.




- Check the function of the heater according to Test running the additional heater / parking heater Initial Inspection and Diagnostic Overview.

Does the heater operate?

Yes - Fault-tracing information
DONE

No - No Fault Found

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Fault-tracing information




Information

Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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FAULT FOUND - DONE

Attempt New Test - Testing the heater unit

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