Test J: The Power Liftgate Module Does Not Respond To The Diagnostic Tool

PINPOINT TEST J: THE POWER LIFTGATE MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

J1:

J2-J3:

Normal Operation
The power liftgate module communicates with the diagnostic tool through the medium speed controller area network (CAN), circuits 2180 (WH/BK) and 2181 (BK/YE). Check circuits 2180 (WH/BK) and 2181 (BK/YE) between the power liftgate module C4174d and the data link connector (DLC) C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the medium speed CAN circuits, damage to the DLC C251, damage to the power liftgate module C4174d, or a problem in an in-line connector.

Possible Causes
- medium speed CAN circuit 2180 (WH/BK) open
- medium speed CAN circuit 2181 (BK/YE) open
- power liftgate module
- power liftgate module C4174d