B188F–POWER LIFTGATE CONTROL CIRCUIT 1 OPEN

For a complete wiring diagram Refer to Section 8W

• When Monitored:

  Whenever the Power Liftgate Module is performing a power opening operation.

• Set Condition:

  When the Power Liftgate Module senses no current on the (Q88) Liftgate Open Driver circuit and no liftgate movement, this code will set. It is also possible for this code to set if the liftgate has been run several times and the internal circuit breaker (Thermo Protection Device) in the drive unit has opened up.

Diagnostic Test

• Go To 2

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
• Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Go To 3

• Replace the Power Liftgate Module in accordance with the service information.
• Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Repair the (Q88) Liftgate Open Driver circuit for an open.
• Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Go To 4

• Repair the (Q89) Liftgate Close Driver circuit for an open.
• Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Replace the Power Liftgate Drive Unit in accordance with the service information.
• Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).