Lumbar Support Does Not Move In or Out 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 horizontal 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 forward/backward control circuits of the lumbar horizontal motor. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
8 | Replace the lumbar switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | -- | |
9 | Replace the lumbar horizontal 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 In or Out with A45
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Lumbar Support Schematics | ||||
1 | Did you perform the Diagnostic System Check-Power Seat Systems? | -- | ||
2 |
Does the Seat Lumbar Forward parameter change state? | -- | ||
3 |
Does the Seat Lumbar Backward parameter change state? | -- | ||
4 |
Did the test lamp illuminate in both directions? | -- | ||
5 |
Does the Seat Lumbar Forward parameter change state? | -- | ||
6 |
Does the Seat Lumbar Backward parameter change state? | -- | ||
7 | Test the lumbar forward motor control circuit between the memory seat module (MSM) and the lumbar horizontal 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 backward motor control circuit between the memory seat module (MSM) and the lumbar horizontal 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 forward input circuit between the lumbar switch and the memory seat module 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? | -- | ||
10 | Test the lumbar backward input circuit between the lumbar switch and the memory seat module 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? | -- | ||
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 lumbar 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 horizontal motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector 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 seat lumbar switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | -- | |
16 | Replace the seat lumbar horizontal 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 | Go to Step 2 |
