For 1990-2009 cars

## Power Seat Does Not Tilt Rearward Buick

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the entire Power Seats System Check performed? | -- | Go to Step 2 | Go to Power Seats System Check
2 |

1. Turn the ignition switch to the OFF position.
2. Backprobe the seat rear vertical motor connector with a test lamp from cavity B (YEL) to ground.
3. Move the rear vertical switch up.

Does the test lamp light?

--

Go to Step 5

Go to Step 3

3 | Inspect CKT 282 (YEL) (LH) or CKT 288 (YEL) (RH) for an open between the seat switch and the seat rear vertical motor. Refer to Testing for Continuity in Wiring Systems. Is CKT 282 or CKT 288 OK? | -- | Go to Step 4 | Go to Step 8
4 | Replace the seat switch. Refer to Power Seat Switch Replacement . Is the seat switch replacement complete? | -- | Go to Power Seats System Check | --
5 |

1. Using a test lamp, backprobe the seat rear vertical motor connector from cavity A (LT BLU) to ground.
2. Move the rear vertical switch down.

Does the test lamp light?

--

Go to Step 7

Go to Step 6

6 | Inspect CKT 283 (LT BLU) (LH) or CKT 289 (LT BLU) (RH) for an open. Refer to Testing for Continuity in Wiring Systems. Is CKT 283 or CKT 289 OK? | -- | Go to Step 4 | Go to Step 8
7 | Replace the seat rear vertical motor. Refer to Front Seat Adjuster Motor Replacement . Is the seat rear vertical motor replacement complete? | -- | Go to Power Seats System Check | --
8 | Repair the suspect circuit. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Power Seats System Check | --

## Power Seat Does Not Tilt Rearward Oldsmobile

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the entire Power Seats System Check performed? | -- | Go to Step 2 | Go to Power Seats System Check
2 |

1. Turn the ignition switch to the OFF position.
2. Using a test lamp, backprobe the RH seat switch connector from cavity N (YEL) to ground.
3. Move the rear vertical switch up.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3 | Replace the RH seat switch. Refer to Power Seat Switch Replacement . Is the repair complete? | -- | Go to Power Seats System Check | --
4 |

1. Using a test lamp, backprobe the RH seat switch connector from cavity F (LT BLU) to ground.
2. Move the rear vertical switch down.

Does the test lamp light?

--

Go to Step 5

Go to Step 3

5 |

1. Using a test lamp, backprobe the RH seat rear vertical motor connector from cavity B (YEL) to ground.
2. Move the rear vertical switch up.

Does the test lamp light?

--

Go to Step 6

Go to Step 8

6 |

1. Using a test lamp, backprobe the RH seat rear vertical motor connector from cavity B (YEL) to ground.
2. Move the rear vertical switch down.

Does the test lamp light?

--

Go to Step 7

Go to Step 9

7 | Replace the RH seat rear vertical motor. Refer to Front Seat Adjuster Motor Replacement . Is the repair complete? | -- | Go to Power Seats System Check | --
8 | Repair the open in CKT 288 (YEL) between the RH seat switch and the RH seat rear vertical motor. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Power Seats System Check | --
9 | Repair the open in CKT 289 (LT BLU) between the RH seat switch and the RH seat rear vertical motor. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Power Seats System Check | --