Pcm Ground

Grounds are provided through multiple pins of the PCM connector. The vehicle uses five power ground and 14 separate sensor grounds.

The power grounds are used to control the ground side relays, solenoids, ignition coils or injectors. The signal grounds are used for any input that uses sensor return for ground.

The PCM case is shielded to prevent RFI and EMI. The PCM case is grounded.

Internally all grounds are connected together, however there is noise suppression on the sensor grounds.