Power Seat Inoperative w/o A45
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Power Seats Schematics | ||||
1 | Did you review the power seat system operation and perform the necessary inspection? | -- | Go to Step 2 | Go to Symptoms |
2 | Does the other power seat operate properly? | -- | Go to Step 4 | Go to Step 3 |
3 | Check the rear fuse block PWR SEAT circuit breaker for continuity. Is the PWR SEAT circuit breaker OK? | -- | Go to Step 7 | Go to Step 8 |
4 | Measure the voltage from the battery positive voltage (B+) circuit of the power seat switch harness connector to a good ground. Does the voltage measure within the specified range? | 9-16 V | Go to Step 5 | Go to Step 9 |
5 | Measure the voltage from the battery positive voltage (B+) circuit of the power seat switch to the ground circuit of the seat switch. Does the voltage measure within the specified range? | 9-16 V | Go to Step 6 | Go to Step 10 |
6 | 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? | -- | Go to Step 14 | Go to Step 13 |
7 | Inspect for poor connections at the harness connector of the rear fuse block. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 12 |
8 | Repair the short to ground in the battery positive voltage circuit of the power seat switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 11 | -- |
9 | Repair the open in the battery positive voltage circuit of the power seat switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- |
10 | Repair the open in the ground circuit of the power seat switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- |
11 | Replace the PWR SEAT circuit breaker in the rear fuse block. Refer to Wiring Repairs in Wiring Systems. Did you complete the replacement? | -- | Go to Step 14 | -- |
12 | Replace the rear fuse block. Refer to Rear Electrical Center or Junction Block Replacement in Wiring Systems. Did you complete the replacement? | -- | Go to Step 14 | -- |
13 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
Power Seat Inoperative with A45
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Memory Seats Schematics | ||||
1 | Did you perform the Diagnostic System Check - Power Seat Systems? | -- | Go to Step 2 | |
2 |
Does the seat parameter change state? | -- | Go to Step 7 | Go to Step 3 |
3 | Measure the voltage from the battery positive voltage circuit of the memory seat module harness connector C 1. Does the voltage measure within the specified range? | 9-16 V | Go to Step 4 | Go to Step 8 |
4 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 5 |
5 | Test the battery positive voltage circuit of the power seat switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 6 |
6 | 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? | -- | Go to Step 11 | Go to Step 9 |
7 | 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? | -- | Go to Step 11 | Go to Step 10 |
8 | Repair the high resistance or open in the battery positive voltage circuit of the memory seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 11 | -- |
9 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | -- | Go to Step 11 | -- |
10 | Replace the memory seat module (MSM). Refer to Memory Seat Control Module Replacement . Did you complete the replacement? | -- | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
