Driver Seat Recliner Movement Inoperative

Possible Causes are:

• SEAT RECLINER DOWN DRIVER WIRE OPEN
• SEAT RECLINER DOWN SWITCH SENSE WIRE OPEN
• SEAT RECLINER UP DRIVER WIRE OPEN
• SEAT RECLINER UP SWITCH SENSE WIRE OPEN
• DRIVER POWER SEAT SWITCH
• DRIVER RECLINER MOTOR INOPERATIVE
• MSM RECLINER MOTOR OUTPUT OPEN
• MSM RECLINER SWITCH INPUT OPEN

1. Using the DRBIII(R), select: Body, Memory Seat Module Actuators. Actuate the Recliner Motor Up, then Down. Did the Recliner Motor operate in both directions? If yes, go to next step. If no, go to step  6 .
2. Turn ignition off. Remove seat to gain access to the connectors. Disconnect the Seat Module C1 connector. Disconnect the Driver Power Seat Switch connector. Measure the resistance of the Seat Recliner Down Switch Sense circuit between the MSM connector and the Seat Switch connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Seat Recliner Down Switch Sense wire. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
3. Turn ignition off. Remove seat to gain access to the connectors. Disconnect the Seat Module C1 connector. Disconnect the Driver Power Seat Switch connector. Measure the resistance of the Seat Recliner Up Switch Sense circuit between the Seat Module connector and the Seat Switch connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Seat Recliner Up Switch Sense wire. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
4. Ensure the Driver Power Seat Switch is fully connected. Disconnect the Seat Module C1 connector. Connect a test light between the Seat Recliner Up Switch Sense circuit and the Seat Recliner Down Switch Sense circuit in the Seat Module connector. Move the Seat Recliner Switch to the Up and then the Down positions and observe the test light. Did the test light illuminate when the switch was moved in both directions? If yes, go to next step. If no, replace the driver power seat switch. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
5. If there are no possible causes remaining, replace the Memory Seat Module. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
6. Turn ignition off. Remove seat to gain access to the connectors. Disconnect the Seat Module C2 connector. Disconnect the driver power Seat Recliner Motor connector. Measure the resistance of the Seat Recliner Down Driver circuit between the Seat Module connector and the seat recliner motor connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Seat Recliner Down Driver wire. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
7. Turn ignition off. Remove seat to gain access to the connectors. Disconnect the Seat Module C2 connector. Disconnect the driver power Seat Recliner Motor connector. Measure the resistance of the Seat Recliner Up Driver circuit between the Seat Module connector and the seat recliner motor connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Seat Recliner Up Driver wire. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
8. Remove seat to gain access to the connectors. Disconnect the Seat Module C2 connector. Ensure the Seat Horizontal Motor connector is connected at this time. Connect a jumper wire from the Seat Recliner Up Driver circuit to the Ground circuit in the Seat Module C2 connector. Connect a jumper wire to the Seat Recliner Down Driver circuit and momentarily touch it to the Fused B (+) circuit. Reverse the Ground and Fused B (+) jumper wires momentarily to run the motor in the opposite direction. Did the Seat Recliner Motor run in both directions. If yes, go to next step. If no, replace the seat track assembly. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
9. If there are no possible causes remaining, replace the Memory Seat Module. Perform MEMORY SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.