GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Memory Seats System Check?

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Go to Step 2

Go to Memory Seats System Check

2

  1. Access the memory seat module.
  2. Using a J 39200 digital multimeter (DMM), measure the voltage on CKT 1440 (ORN) cavity B of connector C3.

Is voltage present?

Battery Voltage

Go to Step 3

Go to Step 5

3

  1. Operate the memory set 1 and memory set 2 positions of the power seat adjuster switch.
  2. Using the J 39200 DMM, measure the voltage at the following cavities of the seat afjuster switch while operating all of the switch selections:
  3. • Cavity 10
    • Cavity 11
    • Cavity 12

Does the voltage move from HIGH to LOW?

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Go to Step 4

Go to Step 8

4

Replace the memory seat module located under the seat cushion.

Is the repair complete?

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Go to Memory Seats System Check

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5

Inspect for an open in CKT 1440 (ORN) between the memory seat module and the PWR SEATS circuit breaker located in the body relay block.

Did you find an open?

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Go to Step 6

Go to Step 7

6

Repair the open in CKT 1440 (ORN) between the memory seat module and the PWR SEATS circuit breaker located in the body relay block.

Is the repair complete?

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Go to Memory Seats System Check

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7

  1. Test for a short to ground. Refer to Testing for Short to Ground in Wiring Systems.
  2. Repair as necessary.

Is the repair complete?

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Go to Memory Seats System Check

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8

Replace the memory seat switch.

Is the repair complete?

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Go to Memory Seats System Check

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9

  1. Ensure that the power seat adjuster switch is disconnected.
  2. Disconnect the connector C1 from the memory seat module.
  3. Disconnect the power seat adjuster switch.
  4. Using the J 39200 DMM, measure the continuity on the following circuits between the memory seat module and the power seat adjuster switch:
  5. • CKT 614 (ORN)
    • CKT 615 (WHT)
    • CKT 616 (PPL)

Is continuity present on the circuits?

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Go to Step 8

Go to Step 10

10

Locate and repair a short to ground on one or more of the following circuits:

    • CKT 614 (ORN)
    • CKT 615 (WHT)
    • CKT 616 (PPL)

Is the repair complete?

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Go to Memory Seats System Check

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