GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the power seats circuit description and perform the necessary inspections?

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Go to Step 2

Go to Diagnostic Starting Point

2

  1. Disconnect 2-way power seat connector.
  2. Connect one lead of DMM to cavity B to the switch side of the 2-way connector
  3. Connect the other lead of the DMM to cavities A and B of the power seat switch connector while activating their respective functions with the power seat switch.

Do both functions indicate continuity?

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Go to Step 4

Go to Step 3

3

Replace power seat adjuster switch. Refer to Power Seat Switch Replacement

Is the repair complete?

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Go to Step 7

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4

Check the following circuits for continuity:

    • CKT 297 (LT GRN)
    • CKT 298 (DK BLU)

Are the wires functional?

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Go to Step 5

Go to Step 6

5

Replace power seat motor. Refer to Seat Replacement - Power with Adjuster

Is the repair complete?

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Go to Step 7

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6

Repair OPEN/SHORT in one of the following circuits:

    • CKT 297 (LT GRN)
    • CKT 298 (DK BLU)

Is the repair complete?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2