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

Power Seat Inoperative Driver Seat Is 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
  1. Disconnect connector C315.
  2. Use the DMM in order to measure the voltage between terminal 3 of connector C315 and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 4

Go to Step 3

3
  1. Locate an open or a high resistance in circuit A70.
  2. Repair the open or the high resistance in circuit A70.

Is the repair complete?

--

Go to Step 7

--

4

Use the DMM in order to measure the resistance between terminal 4 of connector C315 and a known good ground.

Is the measured resistance less than the specified value?

5 ohms

Go to Step 6

Go to Step 5

5
  1. Locate an open or a high resistance in circuit F66.
  2. Repair the open or the high resistance in circuit F66.

Is the repair complete?

--

Go to Step 7

--

6

Replace the driver seat adjuster switch. Refer to Power Seat Switch Replacement .

Is the replacement complete?

--

Go to Step 7

--

7
  1. Connect all connectors and components that were disconnected.
  2. Verify that the driver seat operates properly.

Does the driver seat operate properly?

--

System OK

Go to Step 1

Power Seat Inoperative Passenger Seat Is 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
  1. Disconnect connector C316.
  2. Use the DMM in order to measure the voltage between terminal 3 of connector C316 and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 4

Go to Step 3

3
  1. Locate an open or a high resistance in circuit A75.
  2. Repair the open or the high resistance in circuit A70.

Is the repair complete?

--

Go to Step 7

--

4

Use the DMM in order to measure the resistance between terminal 4 of connector C316 and a known good ground.

Is the measured resistance less than the specified value?

5 ohms

Go to Step 6

Go to Step 5

5
  1. Locate an open or a high resistance in circuit F67.
  2. Repair the open or the high resistance in circuit F67.

Is the repair complete?

--

Go to Step 7

--

6

Replace the passenger seat adjuster switch. Refer to Power Seat Switch Replacement .

Is the replacement complete?

--

Go to Step 7

--

7
  1. Connect all connectors and components that were disconnected.
  2. Verify that the passenger seat operates properly.

Does the passenger seat operate properly?

--

System OK

Go to Step 1