Powertrain Control Module
PCM controls ignition, fuel and emission devices related to engine and transaxle operation. PCM receives electronic signals from sensors and switches. Input signals enable PCM to determine when to operate various relays and solenoids related to engine and transaxle control. PCM utilizes 2 different colored 80-pin connectors. See Figure and Figure .
POWERTRAIN CONTROL MODULE LOCATIONS
| Application | Location |
|---|---|
| All Models Except Lumina & Monte Carlo | Left Side Of Engine Compartment, In Air Cleaner |
| Impala, Lumina & Monte Carlo | Right Side Of Engine Compartment, In Air Cleaner |