Ignition Switch and Powertrain Control Module Connectors Caution. GMC Truck Envoy

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Envoy - 4WD 🢒 Preface 🢒 Dangers, Warnings, and Cautions 🢒 Ignition Switch and Powertrain Control Module Connectors Caution

Caution: Turn the ignition OFF when installing or removing the PCM connectors and disconnecting or reconnecting the power to the PCM (battery cable, PCM pigtail, PCM fuse, jumper cables, etc.) in order to prevent internal PCM damage.