For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Connector End Views DEFINITION: One or more of the power seat functions are inoperative.
1 | Did you review the Power Seat System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Power Seats System Description and Operation
2 | Attempt to operate all of the power seat adjuster motors through their full range of adjustment. Do all of the power seat adjuster motors operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3
3 | Are all the power seat adjuster motors inoperative? | Go to Step 4 | Go to Step 6
4 |

1. Disconnect the power seat switch connector.
2. Connect a test lamp between the battery positive voltage circuit of the power seat switch connector and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 8

5 | Connect a test lamp between the battery positive voltage circuit and the ground circuit of the power seat switch connector. Does the test lamp illuminate? | Go to Step 10 | Go to Step 9
6 |

1. Disconnect the inoperative adjuster motor connector.
2. Connect a test lamp between the motor control circuits of the motor connector.
3. Operate the appropriate seat adjuster switch in both directions.

Does the test lamp illuminate while the switch is operated in both directions?

Go to Step 11

Go to Step 7

7 |

1. Disconnect the power seat switch connector.
2. Test the inoperative motor control circuits for high resistance, an open, or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

8 | Repair the battery positive voltage circuit of the power seat switch for high resistance, an open, or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | --
9 | Repair the ground circuit of the power seat switch for high resistance, or an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | --
10 | Inspect for poor connections at the harness connector of the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12
11 | Inspect for poor connections at the harness connector of the inoperative adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13
12 | Replace the power seat switch. Refer to Power Seat Switch Replacement . Is the replacement complete? | Go to Step 14 | --
13 | Replace the inoperative seat adjuster motor. Refer to Front Seat Adjuster Replacement . Is the replacement complete? | 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