GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Seat Memory System Check?

--

Go to Step 2

Go to Memory Seats System Check

2

Do the memory mirrors operate properly?

--

Go to Power Seat Inoperative

Go to Step 3

3

  1. Disconnect the memory seat/mirror module connector C1.
  2. Connect a DMM from the memory seat/mirror module connector C1 cavity A (ORN) to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 6

4

Connect a DMM from the memory seat/mirror module connector C1 cavity A (ORN) to cavity B (BLK).

Is the voltage within the specified range?

10-15 V

Go to Step 5

Go to Step 7

5

Replace the memory seat/mirror module.

Is the repair complete?

--

Go to Memory Seats System Check

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6

Repair the open in CKT 1340 (ORN) between S227 and the memory seat/mirror module. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Memory Seats System Check

--

7

Repair the open in CKT 1250 (BLK) between S218 and the memory seat/mirror module. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Memory Seats System Check

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