1. Check for continuity between the No. 5 terminal of the tailgate closer unit 12P connector and body ground.

Is there continuity?

YES | - | Repair a short in the RED (CLCL) wire between the No. 17 terminal of power tailgate control unit connector A (26P) and the No. 5 terminal of the tailgate closer unit 12P connector.■
NO | - | A short circuit for CLCL line in the tailgate closer unit; replace it.■