GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Envoy - 4WD 🢒 Body and Accessories 🢒 Seats 🢒 Power Seat Does Not Recline

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Seats System Check?

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Go to Step 2

Go to Power Seats System Check

2
  1. Access the power seat adjuster switch.
  2. Connect a J 39200 digital multimeter (DMM) to ground.
  3. Probe the C2 terminal B.
  4. Operate the seat recliner switch to the FORWARD position.

Is voltage present?

--

Go to Step 3

Go to Step 7

3
  1. Connect the J 39200 DMM to ground.
  2. Probe the C2 terminal A.
  3. Operate the seat recliner switch to the REARWARD position.

Is voltage present?

--

Go to Step 4

Go to Step 7

4
  1. Ensure that the seat recliner motor connector is connected.
  2. Connect the J 39200 DMM to ground.
  3. Backprobe the seat recliner motor connector terminal A.
  4. Operate the seat recliner motor switch to the FORWARD position.

Is voltage present?

--

Go to Step 5

Go to Step 8

5
  1. Ensure that the seat recliner motor connector remains connected.
  2. Connect the J 39200 DMM to ground.
  3. Backprobe the seat recliner motor connector terminal B.
  4. Operate the seat recliner motor switch to the REARWARD position.

Is voltage present?

--

Go to Step 6

Go to Step 9

6

Replace the seat recliner motor.

Is the repair complete?

--

Go to Power Seats System Check

--

7

Replace the power seat adjuster switch.

Is the repair complete?

--

Go to Power Seats System Check

--

8

Locate and repair the open or high resistance in CKT 276 between the power seat adjuster switch and the seat recliner motor.

Is the repair complete?

--

Go to Power Seats System Check

--

9

Locate and repair the open or high resistance in CKT 277 between the power seat adjuster switch and the seat recliner motor.

Is the repair complete?

--

Go to Power Seats System Check

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