Diagnostic Aids

WARNING: This page is about a different car, the 2000 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.

Use a J35616-A when probing or checking electrical connector terminals. The J35616-A prevents terminal damage, plus checks for proper terminal contact tension
If a short to B+ is present a history U1301 will set in the modules. Refer to DTC U1301 Class 2 Short to Battery
If a short to ground is present a history U1300 will set in the modules. Refer to DTC U1300 Class 2 Short to Ground
If the malfunction is intermittent refer to TESTING FOR INTERMITTENTS & POOR CONNECTIONS
Disconnecting modules and turning the ignition switch to ON may cause DTCs in these modules. Check for DTCs in each module upon completion of the required repair