Powertrain Control Module

These models use the Service Programming System (SPS) to reprogram the PCM and other modules. The SPS allows a technician to program a control module through the Data Link Connector (DLC). See POWERTRAIN CONTROL MODULE for 3.4L engines or POWERTRAIN CONTROL MODULE for 3.8L engines under PROGRAMMING in appropriate SELF-DIAGNOSTICS article in FAULT ISOLATION in ENGINE PERFORMANCE.