2008 Cadillac Escalade ESV Engine Control Module

The flat wire within the flex wiring harness is not serviceable. If an open or short exists within the flex wiring harness the complete harness must be replaced.

Do not touch the connector pins or soldered components on the circuit board to prevent possible electrostatic discharge (ESD) damage to the PCM.

Turn the ignition OFF when installing or removing the control module connectors and disconnecting or reconnecting the power to the control module (battery cable, powertrain control module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control module fuse, jumper cables, etc.) to prevent internal control module damage. Control module damage may result when the metal case contacts the battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables, or when charging the vehicle battery.

If the diode is located next to a connector terminal remove the terminal(s) from the connector to prevent damage from the soldering tool. To prevent shorts to ground and water intrusion, completely cover all exposed wire and diode attachment points with tape.