Power Door Locks - Inoperative

TEST DESCRIPTION

Steps 1-5:

Steps 6-16:

Steps 17-24:

The number(s) below refer to the step number(s) on the diagnostic table.
3. This step determines if there is a rear door lock actuator control circuit shorted to ground. This condition could open the RRDR MDL fuse located in the rear fuse block and set DTCs U1162 and U1163 simultaneously current when the rear door lock actuator is actuated.
4. Turning ON the headlamps switch in this step eliminates the possibility of the inoperative door lock switch finding an alternative path to ground through the illumination circuit.
16. This step directs you to, either inspect for poor connections at the passenger door module, or, at the driver door switch assembly as a pre-requisite to replacing the passenger door module or driver door switch assembly. This is because lock switch signals for the driver door are detected and processed by the driver door switch assembly, while lock switch signals for the passenger door are detected and processed by the passenger door module.
21. This step directs you to, either replace the passenger door module or driver door switch assembly. This is because lock switch signals for the driver door are detected and processed by the driver door switch assembly, while lock switch signals for the passenger door are detected and processed by the passenger door module.