Power Sliding Door - Unlatch Actuator Inoperative

Diagnostic Chart (Part 1 Of 3):

Diagnostic Chart (Part 2 Of 3):

Diagnostic Chart (Part 3 Of 3):

Schematic:

CIRCUIT DESCRIPTION
The Power Sliding Door (PSD) uses a power sliding door unlatch actuator to unlatch (open) the sliding door. The rear side door actuator control module operates the power sliding door unlatch actuator.

When the PSD opens the sliding door, the rear side door actuator control module energizes the power sliding door unlatch actuator by sending B+ through circuit 2910 The power sliding door unlatch actuator receives ground through circuit 750. The sliding door unlatches when the power sliding door unlatch is energized. Circuit 750 and circuit 2910 pass through the switch plate plungers and the pads located on the B-pillar; therefore, the rear side door actuator control module is only able to energize the power sliding door lock unlatch actuator when the switch plate plungers and pads are in contact. The power sliding door unlatch actuator is located inside the upper center of the sliding door.

DIAGNOSTIC AIDS
^ The unlatch actuator may not activate due to the following conditions:
- An open circuit (circuit 750 and/or circuit 2910)
- A defective unlatch actuator
^ The unlatch actuator and the rod may not unlatch or open the door due to the following conditions:
- The sliding door is locked; therefore, unlock the door
- The front rod adjustment is too long; therefore adjust the front rod.
- A detective unlatch actuator
^ Inspect the unlatch actuator for the power sliding door for the following conditions:
- Poor connector terminal contact at the control module of the rear side door actuator
- The switch plate plungers and the pads for good interface
- An open in circuit 2910
- An open in circuit 750
- A poor G302
- A short to the ground in circuit 2910
- A faulty unlatch actuator for the power sliding door
^ The Diagnostic Mode 3 tests the unlatch actuator for the power sliding door. Refer to Diagnostic Modes in Power Sliding Door Diagnostic Information earlier in this section for procedures.

^ An Intermittent failure may be difficult to detect and to diagnose accurately. Faulty electrical connections or wiring cause the most Intermittent conditions.

Inspect the suspected circuits for the following conditions when an Intermittent condition is suspected:
- Poor mating of the connector halves or the backed out terminals
- Improperly formed or improperly damaged terminals
- Wire chafing
- Poor wire to terminal connections
- Dirty or corroded terminals
- Damage to the connector bodies
- Wire broken inside of the insulation
^ Use a J 35616-A whenever a diagnostic procedure requests probing or inspecting of a terminal. Using this tool will ensure that no damage to the terminal will occur and will give an idea of the amount of terminal tension contact that is sufficient.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
8. This step performs the Diagnostic Mode 3.
9. This step inspects whether the malfunction is in the sliding door or in the vehicle.
10 This step inspects for open in circuit 750 located on the door side.
11. This step inspects for an open in circuit 750 located on the vehicle side.
12. This step inspects for an open in circuit 2910 located on the door side.
14. This step determines whether the following conditions exist:
^ circuit 2910 is shorted to ground located on the door side
^ The power sliding door unlatch actuator is faulty
18. This step inspects for a short to the ground in circuit 2910 located on the vehicle side.
20. This step inspects for an open in circuit 2910 located on the vehicle side.
22. This step determines whether the following conditions exist:
^ The malfunction is Intermittent
^ The rear side door actuator control module is faulty