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 | |
2 | Operate the lumbar switch in all directions. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the scan tool display the correct switch parameter in relation to the actual switch position? | Go to Step 6 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 7 |
5 |
Does the scan tool indicate the correct switch signal circuit is active? | Go to Step 10 | Go to Step 8 |
6 |
Does the test lamp illuminate while the switch is pressed in both directions? | Go to Step 11 | Go to Step 9 |
7 | Test the battery voltage supply circuit to the lumbar switch for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs . Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
8 | Test the inoperative lumbar switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs . Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
9 | Test the inoperative lumbar adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs . Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
10 | Inspect for poor connections at the harness connector of the lumbar switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | Go to Step 16 | Go to Step 13 |
11 | Inspect for poor connections at the harness connector of the lumbar adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . 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 seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition? | Go to Step 16 | Go to Step 15 |
13 | Replace the lumbar switch. Refer to Front Seat Lumbar Control Switch Replacement . Did you complete the replacement? | Go to Step 16 | -- |
14 | Replace the inoperative lumbar adjuster motor. Refer to Front Seat Lumbar Support Replacement . Did you complete the replacement? | Go to Step 16 | -- |
15 | Replace the seat module. Refer to Control Module References 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 3 |