Power Seat Inoperative w/o Memory
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Driver Seat Schematics , Passenger Seat Schematics Connector End View Reference: Power Seat Connector End Views DEFINITION: One or more of the power seat functions are inoperative. | |||
1 | Did you review the Power Seat System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Seats |
2 | Attempt to operate all of the power seat adjuster motors through their full range of adjustment. Do all of the power seat adjuster motors operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are all the power seat adjuster motors inoperative? | Go to Step 4 | Go to Step 6 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
5 | Connect a test lamp from the battery voltage supply circuit terminal to the ground circuit terminal in the power seat switch harness connector. Does the test lamp illuminate? | Go to Step 10 | Go to Step 9 |
6 |
Does the test lamp illuminate while the switch is operated in both directions? | Go to Step 11 | Go to Step 7 |
7 |
Did you find and correct the condition? | Go to Step 14 | Go to Step 10 |
8 | Repair the battery voltage supply circuit to the power seat switch for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | -- |
9 | Repair the power seat switch ground circuit for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | -- |
10 | Inspect for poor connections at the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12 |
11 | Inspect for poor connections at the inoperative adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13 |
12 | Replace the power seat switch. Refer to Power Seat Switch Replacement or to Front Seat Lumbar Control Switch Replacement . Is the repair complete? | Go to Step 14 | -- |
13 | Replace the inoperative seat adjuster motor. Refer to Power Seat Adjuster Mechanism Replacement or to Front Seat Lumbar Support Replacement . Is the repair complete? | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Power Seat Inoperative with Memory
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 | Attempt to operate all of the seat adjuster motors through their full range of adjustment. Do all of the seat adjuster motors operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the scan tool display the correct Switch Status parameters in relation to the actual switch positions? | Go to Step 5 | Go to Step 4 |
4 |
Is battery voltage present on the switch supply voltage circuit? | Go to Step 8 | Go to Step 6 |
5 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 7 |
6 | Test the battery voltage supply circuit to the power seat switch for open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 9 |
7 | Repair the high current battery voltage supply circuit to the seat module for open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 12 | -- |
8 | Inspect for poor connections at the harness connector of the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
9 | Inspect for poor connections at the harness connectors of the memory seat module (MSM). Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 11 |
10 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Is the repair complete? | Go to Step 12 | -- |
11 | Replace the memory seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 12 | -- |
12 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
