GM Service Manual Online
For 1990-2009 cars only

Step

Action

Values

Yes

No

1

Was the Backup Light System Check performed?

--

Go to Step 2

Go to Backup Lamp System Check

2

  1. Test that the backup lamp switch for a manual transaxle is not stuck in the closed position.
  2. Test that the transaxle range switch for an automatic transaxle is not stuck in the R position.

Does the switch test OK?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage in the RED wire between the switch and S401. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Backup Lamp System Check

4

Replace the switch. Refer to Backup Lamp Switch Replacement in Manual Transmission or Transaxle Range Switch in Automatic Transmission.

Is the repair complete?

Go to Backup Lamp System Check