TEST
ACTION
APPLICABILITY
4
Ensure the Driver Power Seat Switch Is fully connected.
Disconnect the Seat Module C1 connector.
Connect a test light between the Seat Rear Up Switch Sense circuit and the Seat
Rear Down Switch Sense circuit in the seat module connector.
Move the Seat Rear Riser 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.
All
Yes
→
Go To
5
No
→
Replace the Driver Power Seat Switch
Perform VERIFICATION TEST -MEMORY SYSTEM.
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the Memory Seat Module.
Perform VERIFICATION TEST -MEMORY SYSTEM.
6
Turn ignition off.
Refer to service information for seat removal to gain access to the connectors.
Disconnect the Seat Module C2 connector.
Disconnect the driver power seat rear riser motor connector.
Measure the resistance of the Seat Rear Down Driver circuit between the Seat
Module connector and the seat front riser motor connector.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
7
No
→
Repair the open Seat Rear Down Driver wire.
Perform VERIFICATION TEST -MEMORY SYSTEM.
7
Refer to service information for seat removal to gain access to the connectors.
Disconnect the Seat Module C2 connector.
Disconnect the driver power seat rear riser motor connector.
Measure the resistance of the Seat Rear Up Driver circuit between the Seat Module
connector and the seat rear riser motor connector.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
8
No
→
Repair the open Seat Rear Up Driver wire.
Perform VERIFICATION TEST -MEMORY SYSTEM.
8
Refer to service information for seat removal 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 Rear Up Driver circuit to the Ground circuit in
the Seat Module C2 connector.
Connect a jumper wire to the Seat Rear 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 Rear Riser Motor run in both directions.
All
Yes
→
Go To
9
No
→
Replace the Seat Track Assy.
Perform VERIFICATION TEST -MEMORY SYSTEM.
447
MEMORY SEAT
*DRIVER SEAT REAR RISER MOVEMENT INOPERATIVE —
Continued