Lumbar Support Does Not Move Up or Down w/o A45
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Lumbar Support Schematics | ||||
1 | Did you review the power seat system operation and perform the necessary inspection? | -- | Go to Symptoms | |
2 |
Does the test lamp illuminate? | -- | ||
3 |
Does the test lamp illuminate? | -- | ||
4 |
Does the test lamp illuminate in both directions? | -- | ||
5 | Inspect for poor connections at the harness connector of the lumbar switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
6 | Inspect for poor connections at the harness connector of the lumbar vertical motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
7 | Repair the open in the lumbar up/down control circuits of the lumbar vertical motor. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
8 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | -- | |
9 | Replace the lumbar vertical motor. Refer to Front Seat Lumbar Support Replacement . Did you complete the replacement? | -- | -- | |
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | |
Lumbar Support Does Not Move Up or Down with A45
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Lumbar Support Schematics | ||||
1 | Did you perform the Diagnostic System Check - Power Seats Systems? | -- | ||
2 |
Does the Seat Lumbar Up parameter change state? | -- | ||
3 |
Does the Seat Lumbar Down parameter change state? | -- | ||
4 |
Does the test lamp illuminate in both directions? | -- | ||
5 |
Does the Seat Lumbar Up parameter change state? | -- | ||
6 |
Does the Seat Lumbar Down parameter change state? | -- | ||
7 | Test the lumbar up motor control circuit between the memory seat module and the lumbar vertical motor for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
8 | Test the lumbar down motor control circuit between the memory seat module and the lumbar vertical motor for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
9 | Test the lumbar up input circuit between the lumbar switch and the memory seat module for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
10 | Test the lumbar down input circuit between the lumbar switch and the memory seat module for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
11 | Inspect for poor connections at the harness connector of the memory seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
12 | Inspect for poor connections at the harness connector of the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
13 | Inspect for poor connections at the harness connector of the lumbar vertical motor. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | ||
14 | Replace the memory seat module (MSM). Refer to Memory Seat Control Module Replacement . Did you complete the replacement? | -- | -- | |
15 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | -- | |
16 | Replace the seat lumbar vertical motor. Refer to Front Seat Lumbar Support Replacement . Did you complete the replacement? | -- | -- | |
17 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | |
