The memory seat module (MSM) is also known as the driver position module (DPM) for this vehicle.
The numbers below refer to the step numbers on the diagnostic table.
If the fuse in the jumper wire opens when you perform this test, the signal circuit is shorted to ground.
If the fuse in the jumper wire opens when you perform this test, the signal circuit is shorted to ground.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify that the Memory Seat Feature Inoperative complaint is present. Does the memory seat system operate as described in the system description and operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the scan tool display Memory 1? | Go to Step 4 | Go to Step 6 |
4 |
Does the scan tool display Memory 2? | Go to Step 5 | Go to Step 8 |
5 |
Does the scan tool display Exit? | Go to Step 12 | Go to Step 11 |
6 | Connect a test lamp from the battery positive voltage circuit of the memory function switch to a good ground. Dose the test lamp illuminate? | Go to Step 7 | Go to Step 13 |
Does the scan tool display Memory 1? | Go to Step 11 | Go to Step 9 | |
Does the scan tool display Memory 2? | Go to Step 11 | Go to Step 10 | |
9 | Test the memory 1 switch signal circuit between the memory function switch and the driver position module (DPM) for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
10 | Test the memory 2 switch signal circuit between the memory function switch and the DPM for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
11 | Inspect for poor connections at the harness connector of the memory function switch. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14 |
12 | Inspect for poor connections at the harness connector of the memory seat module (MSM)/DPM. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 15 |
13 | Repair the open in the battery positive voltage circuit of the memory function switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
14 | Replace the memory function switch. Refer to Driver Seat Adjuster and Recliner Switch Replacement . Did you complete the replacement? | Go to Step 16 | -- |
15 | Replace the MSM/DPM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 16 | -- |
16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |