GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the System Check Performed?

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Go to Step 2

Go to Selectable Ride System Check

2

  1. Remove the selectable ride switch from the instrument panel. Refer to Electronic Suspension Switch Replacement .
  2. Turn the ignition to the ON position.
  3. Ensure the selectable ride switch is in the ON position (depressed).
  4. Connect a test lamp (back probe) from terminal C (TAN/WHT) to ground.

Does the test lamp light?

--

Go to Step 6

Go to Step 3

3

Connect a test lamp (back probe) terminal F (PNK) to ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 4

4

Locate and repair the open in CKT 739 (PNK) between the switch and mid bussed electrical center (MBEC).

Is the repair complete?

--

System OK

--

5

Replace the selectable ride switch. Refer to Electronic Suspension Switch Replacement .

Is the repair complete?

--

System OK

--

6

  1. Turn the ignition OFF.
  2. Disconnect the selectable ride switch.
  3. Connect a self-powered test lamp from terminal B (BLK) to ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 7

7

Locate and repair the open in CKT 1850 (BLK) to ground.

Is the repair complete?

--

System OK

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