GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Eighty Eight 🢒 Body and Accessories 🢒 Seats 🢒 Power Seat Does Not Recline

Power Seat Does Not Recline Oldsmobile w/ AG1

Step

Action

Value(s)

Yes

No

1

Did you perform the entire Power Seats Diagnostic System Check?

--

Go to Step 2

Go to Power Seats System Check

2
  1. Turn the ignition switch to the OFF position.
  2. Backprobe the LH seat switch connector with a DMM from cavity S (LT GRN) to ground.
  3. Move the recline switch forward.

Is the voltage within the specified range?

10-15V

Go to Step 4

Go to Step 3

3

Replace the LH seat switch. Refer to Power Seat Switch Replacement .

Is the repair complete?

--

Go to Power Seats System Check

--

4
  1. Backprobe the seat switch connector with a DMM from cavity R (LT BLU) to ground.
  2. Move the recline switch back.

Is the voltage within the specified range?

10-15V

Go to Step 5

Go to Step 3

5
  1. Backprobe the LH seat recline motor from cavity B (LT GRN) to ground.
  2. Move the recline switch back.

Is the voltage within the specified range?

10-15V

Go to Step 6

Go to Step 8

6
  1. Backprobe the LH seat recline motor from cavity A (LT BLU) to ground.
  2. Move the recline switch forward.

Is the voltage within the specified range?

10-15V

Go to Step 7

Go to Step 9

7

Replace the LH seat recline motor. Refer to Seat Back Recliner Replacement .

Is the repair complete?

--

Go to Power Seats System Check

--

8

Repair the open in CKT 276 (LT GRN) between the LH seat switch and the LH seat recline motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Seats System Check

--

9

Repair the open in CKT 277 (LT BLU) between the LH seat switch and the LH seat recline motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Seats System Check

--

Power Seat Does Not Recline Oldsmobile w/ AG2

Step

Action

Value(s)

Yes

No

1

Did you perform the entire Power Seats Diagnostic System Check?

--

Go to Step 2

Go to Power Seats System Check

2
  1. Turn the ignition switch to the OFF position.
  2. Backprobe the RH seat switch connector with a DMM from cavity K (DK BLU) to ground.
  3. Move the recline switch back.

Is the voltage within the specified range?

10-15V

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. Backprobe the RH seat switch connector with a DMM from cavity J (DK GRN) to ground.
  2. Move the recline switch forward.

Is the voltage within the specified range?

10-15V

Go to Step 5

Go to Step 3

5
  1. Backprobe the RH seat recline motor from cavity B (DK GRN) to ground.
  2. Move the recline switch forward.

Is the voltage within the specified range?

10-15V

Go to Step 6

Go to Step 8

6
  1. Backprobe the RH seat recline motor from cavity A (DK BLU) to ground.
  2. Move the recline switch back.

Is the voltage within the specified range?

10-15V

Go to Step 7

Go to Step 9

7

Replace the RH seat recline motor. Refer to Seat Back Recliner Replacement .

Is the repair complete?

--

Go to Power Seats System Check

--

8

Repair the open in CKT 76 (DK GRN) between the RH seat switch and the RH seat recline motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Seats System Check

--

9

Repair the open in CKT 77 (DK BLU) between the RH seat switch and the RH seat recline motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Seats System Check

--

Power Seat Does Not Recline Oldsmobile w/ A43

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Seat Memory System Check?

--

Go to Step 2

Go to Memory Seats System Check

2
  1. Disconnect the LH seat switch connector.
  2. Connect a DMM from the LH seat switch connector cavity F (ORN) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 3

Go to Step 5

3

Connect a DMM from the LH seat switch connector cavity F (ORN) to terminal G (BLK).

Is the voltage within the specified range?

10-15V

Go to Step 4

Go to Step 6

4

Replace the LH seat switch. Refer to Power Seat Switch Replacement .

Is the repair complete?

--

Go to Memory Seats System Check

--

5

Repair the open in CKT 640 (ORN) between S237 and the LH seat switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Memory Seats System Check

--

6

Repair the open in CKT 1250 (BLK) between S218 and the LH seat switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Memory Seats System Check

--

Power Seat Does Not Recline Pontiac w/AL7

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Seats System Check?

--

Go to Step 2

Go to Power Seats System Check

2
  1. Disconnect the seat control module connector C2.
  2. Briefly connect a fused jumper from the seat control module connector C2 cavity G (GRY/BLK) to ground.

Does the seat back recline forward with the fused jumper connected?

--

Go to Step 9

Go to Step 3

3

Briefly connect a fused jumper from the seat control module connector C2 cavity H (DK GRN/WHT) to ground.

Does the rear of the seat back recline back with the fused jumper connected?

--

Go to Step 10

Go to Step 4

4
  1. Reconnect the seat control module connector C2.
  2. Disconnect the seat control module LH connector C3 or RH connector C4.
  3. Connect a DMM from the seat control module LH connector C3 or the RH connector C4 LH cavity E (LT BLU) or RH cavity E (DK BLU) to ground.
  4. Press the recline forward button.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 5

5

Replace the seat control module.

Is the repair complete?

--

Go to Power Seats System Check

--

6

Inspect for an open in the LH CKT 277 (LT BLU) or the RH CKT 77 (DK BLU) between the seat control module and the seat recline motor. Refer to Testing for Continuity in Wiring Systems.

Is CKT 277 or CKT 77 OK?

--

Go to Step 7

Go to Step 12

7

Inspect for an open in the LH CKT 1246 (DK GRN) or the RH CKT 1247 (DK GRN) between the seat recline motor and S363. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1246 or CKT 1247 OK?

--

Go to Step 8

Go to Step 12

8

Replace the seat recline motor. Refer to Seat Back Recliner Replacement .

Is the repair complete?

--

Go to Power Seats System Check

--

9

Inspect for an open in CKT 1269 (GRY/BLK) between the seat control module and the console seat switch. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1269 OK?

--

Go to Step 11

Go to Step 12

10

Inspect for an open in CKT 1270 (DK GRN/WHT) between the seat control module and the console seat switch. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1270 OK?

--

Go to Step 11

Go to Step 12

11

Replace the console seat switch.

Is the repair complete?

--

Go to Power Seats System Check

--

12

Repair the suspect wiring. Refer to Wiring Repairs in Wiring Repairs.

Is the repair complete?

--

Go to Power Seats System Check

--