Power Seat Does Not Tilt Rearward w/o A45
Step | Action | 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 - Seats |
2 | Verify at the Power Seat Does Not Tilt Rearward complaint is present. Does the power seat system operate as described in the system description and operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 6 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 7 |
5 |
Does the test lamp illuminate in both directions? | Go to Step 9 | Go to Step 8 |
6 | Test the seat rear vertical motor up control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 8 |
7 | Test the seat rear vertical motor down control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 8 |
8 | Inspect for poor connections at the harness connector of the seat adjuster 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 12 | Go to Step 10 |
9 | Inspect for poor connections at the harness connector of the seat rear vertical motor. 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 12 | Go to Step 11 |
10 | Replace the seat adjuster switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | Go to Step 12 | -- |
11 | Replace the seat rear vertical motor. Refer to Seat Adjuster Motor Replacement . Did you complete the replacement? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Does Not Tilt Rearward with A45
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Memory Seats Schematics | |||
1 | Did you perform the Diagnostic System Check - Power Seats Systems? | Go to Step 2 | |
2 | Verify that the Power Seat Does Not Tilt Rearward complaint is present. Does the power seat system operate as described in the system description and operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Operate the seat rear vertical switch in the UP and DOWN directions. Does the seat rear vertical motor run for approximately 1 second then stop? | Go to Step 13 | Go to Step 4 |
4 |
Does the Seat Switches parameter change state? | Go to Step 5 | Go to Step 7 |
5 |
Does the Seat Switches parameter change state? | Go to Step 6 | Go to Step 8 |
6 |
Does the test lamp illuminate in both directions? | Go to Step 17 | Go to Step 9 |
7 |
Does the Seat Switches parameter change state? | Go to Step 16 | Go to Step 11 |
8 |
Does the Seat Switches parameter change state? | Go to Step 16 | Go to Step 12 |
9 | Test the driver seat rear vertical motor up control circuit between the memory seat module and the rear 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? | Go to Step 21 | Go to Step 10 |
10 | Test the driver seat rear vertical motor down control circuit between the memory seat module and the rear 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? | Go to Step 21 | Go to Step 15 |
11 | Test the power seat rear vertical up switch signal circuit between the seat adjuster 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? | Go to Step 21 | Go to Step 15 |
12 | Test the power seat rear vertical down switch signal circuit between the seat adjuster 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? | Go to Step 21 | Go to Step 15 |
13 | Test the memory seat low reference circuit between the memory seat module and the seat rear position sensor for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 14 |
14 | Test the 5 volt reference circuit between the memory seat module and the seat rear position sensor for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 15 |
15 | 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 21 | Go to Step 18 |
16 | Inspect for poor connections at the harness connector of the seat adjuster 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 21 | Go to Step 19 |
17 | Inspect for poor connections at the harness connector of the seat rear vertical motor. 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 21 | Go to Step 20 |
18 | Replace the memory seat module (MSM). Refer to Memory Seat Control Module Replacement . Did you complete the replacement? | Go to Step 21 | -- |
19 | Replace the seat adjuster switch. Refer to Power Seat Switch Replacement . Did you complete the replacement? | Go to Step 21 | -- |
20 | Replace the seat rear vertical motor. Refer to Front Seat Adjuster Replacement . Did you complete the replacement? | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
