Powertrain Control Module (PCM)

Need a step-by-step guide?

Get an AI-powered repair guide with parts lists, cost estimates, and clear instructions for your 1998 Oldsmobile.

AI Repair Guides
The Powertrain Control Module (PCM) monitors circuit 229 (DK BLU) to determine when to enable the fuel delivery system.

The PCM has some diagnostic features associated with the PASS-Key(R) II system, including diagnostic trouble codes. Refer to Engine Controls. Computers and Control Systems