GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform A Diagnostic System Check -Power Seat Systems?

--

Go to Step 2

Go to Diagnostic System Check - Power Seat Systems

2

Do the power windows operate properly?

--

Go to Step 3

Go to Diagnostic System Check - Door Systems

3

Is more than one memory function operating improperly?

--

Go to Step 6

Go to Step 4

4

  1. Disconnect the memory function switch harness connector.
  2. Test the resistance between the memory function switch ground cavity and the suspect switch cavity.
  3. Press the suspect memory function button.

Does the resistance measure less than the specified value?

5 ohms

Go to Step 5

Go to Step 8

5

  1. Disconnect the driver door switch assembly harness connector.
  2. Measure the resistance between the suspect memory function switch connector cavity and the appropriate driver door switch assembly connector cavity.

Does the resistance measure less than the specified value?

5 ohms

Go to Step 7

Go to Step 9

6

Test the ground circuit of the memory function switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 8

7

Inspect for poor connections at the harness connector of the driver door switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 10

8

Inspect for poor connections at the harness connector of the memory function switch Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 11

9

Repair the open in the suspect wiring circuit. Refer to Wiring Repairs in Wiring Systems

Did you complete the repair?

--

Go to Step 12

--

10

Replace the driver door switch assembly. Refer to Front Door Switch Replacement in Doors.

Did you complete the replacement?

--

Go to Step 12

--

11

Replace the memory function switch. Refer to Driver Seat Adjuster Memory Switch Replacement .

Did you complete the replacement?

--

Go to Step 12

--

12

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2