Diagnostic Tests: Notes

WARNING: This page is about a different car, the 2000 Saab 9-5 and 1999 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuits are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. Ensure DTCs are diagnosed in numerical order, starting with lowest number first.