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ABS and SRS: Diagnostics

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.

If none of the systems can be contacted, the fault may be either in the car or the diagnostic tool. If the diagnostic tool can contact one of the systems concerned in another car, then the fault is in the car.

In that case, first check that the control module is awake. The ABS and SRS warning lamps are tested by the control module as soon as the ignition is switched on. If the control module is awake, then the fault is probably in the lead between the data link connector and the control module.

Diagnostic trouble code P1625 will be generated if there is no communication between Trionic and the TC/ABS control module for 3 seconds while driving.

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