GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Connect a J 39200 digital multimeter (DMM).
  2. Inspect the power seat circuit breaker D for an open.

Is the power seat circuit breaker D open?

--

Go to Step 2

Go to Step 3

2

  1. Connect a J 39200 DMM.
  2. Inspect CKT 340 for a short to ground.
  3. Replace the power seat circuit breaker D.
  4. Inspect the system.

Is the repair complete?

--

System OK

--

3

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

Does the test lamp light?

--

Go to Step 4

Go to Step 5

4

  1. Connect a test lamp.
  2. Backprobe between the driver seat adjuster switch connector terminal F and terminal C.

Does the test lamp light?

--

Go to Step 6

Go to Step 9

5

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

Is the repair complete?

--

System OK

--

6

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

Is there a poor connection at the driver seat adjuster switch?

--

Go to Step 7

Go to Step 8

7

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

Is the repair complete?

--

System OK

--

8

  1. Replace the driver seat adjuster switch. Refer to Front Seat Adjuster Replacement .
  2. Inspect the system.

Is the repair complete?

--

System OK

--

9

  1. Repair the poor connection or the open in CKT 150 to G302.
  2. Inspect the system.

Is the repair complete?

--

System OK

--