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Home >> Saab >> 2003 >> 9-3 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Bus And Diagnostics Communication) >> Fault diagnosis, symptoms >> No communication with auxiliary heater >> Diagnostic help

Diagnostic help

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

First, check the fuses for the DAH control module and that the data link connector pins for communication are in place.

Then, check whether the DAH is awake and allowing diagnostics communication. If not, check to see if the diagnostic tool works in another car.

If no fault is found, rectify the communications lead between DAH and the data link connector.

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