Rear End Door Opener Switch On-Vehicle Inspection
Precautions: Precautions for Diagnosing Trouble · Precautions for Replacing Ignition Key (Ignition Switch Model) · Precautions for Transmitter Disposal (Ignition Switch Model) · Precautions for Replacing Keyless Entry Control Module (Ignition Switch Model) · Precautions for Body, Cab and Accessories · General safety (00)
1)Remove rear end door trim. 
2)Disconnect rear end door opener switch connector (1).
3)Check continuity between terminals at each switch position.
If check result is not as specified, replace switch.
If check result is not as specified, replace switch.
Rear end door opener switch continuity