Test L: The Power Liftgate Module Does Not Respond To The Diagnostic Tool
PINPOINT TEST L: THE POWER LIFTGATE MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOLL1:
L2-L3:
Normal Operation
The power liftgate module is connected to the international standards organization (ISO) 9141 communication network, circuit 70 (LB/WH). If circuit 70 (LB/WH) becomes open or shorted to ground, communications to that module are not possible. Check circuit 70 (LB/WH) between the power liftgate module C4174a and the data link connector (DLC) C251. Total resistance value must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open in circuit 70 (LB/WH), damage to the DLC C251, damage to the power liftgate module C4174a, or a problem in the in-line connectors.
Possible Causes
- ISO 9141 circuit 70 (LB/WH) open
- power liftgate module C4174a
- power liftgate module