GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Grand Prix 🢒 Body and Accessories 🢒 Seats 🢒 Power Seat Inoperative

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

Inspect the seat circuit breaker.

Is the seat circuit breaker open?

--

Go to Step 3

Go to Step 4

3
  1. Repair a short to ground in CKT 340.
  2. Inspect the system.

Is the repair complete?

--

Go to Power Seats System Check

--

4
  1. Connect a test lamp.
  2. Backprobe between the driver seat adjuster switch connector terminal A and ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5
  1. Connect a test lamp.
  2. Backprobe between the driver seat adjuster switch connector terminals A and D.

Does the test lamp light?

--

Go to Step 7

Go to Step 10

6
  1. Repair the poor connection or open in CKT 340.
  2. Inspect the system.

Is the repair complete?

--

Go to Power Seats System Check

--

7

Inspect for a poor connection at the driver seat adjuster switch.

Did you find a poor connection at the driver seat adjuster switch?

--

Go to Step 8

Go to Step 9

8
  1. Repair the poor connection at the driver seat adjuster switch.
  2. Inspect the system.

Is the repair complete?

--

Go to Power Seats System Check

--

9
  1. Replace the driver seat adjuster switch. refer to Power Seat Switch Replacement .
  2. Inspect the system.

Is the repair complete?

--

Go to Power Seats System Check

--

10
  1. Repair the poor connection or the open in CKT 750 between the driver seat adjuster switch terminal D to G301.
  2. Inspect the system.

Is the repair complete?

--

Go to Power Seats System Check

--