Diagnostic Aids

WARNING: This page is about a different car, the 2008 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis of this DTC is accomplished via the symptom, SCAN TOOL DOES NOT COMMUNICATE WITH LOW SPEED GMLAN DEVICE .
An intermittent condition is likely to be caused by a short on the GMLAN serial data circuits. Use the SCAN TOOL DOES NOT COMMUNICATE WITH LOW SPEED GMLAN DEVICE procedure in order to isolate an intermittent condition.