GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Astro - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Backup Lamp Inoperative - One Lamp

Backup Lamp Inoperative - One Lamp Non VE1

Step

Action

Value(s)

Yes

No

1

Did you perform the Backup Lights System Check?

--

Go to Step 2

Go to Backup Lamp System Check

2
  1. Disconnect the inoperative lamp.
  2. Engage the parking brake.
  3. Place the ignition switch in the RUN position.
  4. Place the shift lever in the REVERSE position.
  5. Connect a test lampJ 35616-200 from CKT 24 (LT GRN) cavity A at the inoperative lamp socket to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 5

3

Inspect the condition of the lamp socket.

Is the lamp socket in proper condition?

--

Go to Step 4

Go to Step 6

4

Repair the open in CKT 1350 (BLK) or CKT 1450 (BLK) between the inoperative left side or right side backup lamp and ground G400 or ground G401 respectively.

Is the repair complete?

--

Go to Backup Lamp System Check

--

5

Repair the open in CKT 24 (LT GRN) between the inoperative lamp and splice S321.

Is the repair complete?

--

Go to Backup Lamp System Check

--

6

Replace the lamp socket.

Is the repair complete?

--

Go to Backup Lamp System Check

--

Backup Lamp Inoperative - One Lamp VE1

Step

Action

Value(s)

Yes

No

1
  1. Disconnect inoperative lamp.
  2. Engage the Parking Brake.
  3. Place Ignition Switch in the RUN position.
  4. Place Shift Lever in Reverse.
  5. Connect a test lamp from LT GRN (24) wire cavity A at the inoperative lamp socket to ground.

Does the test lamp light?

--

Go to Step 2

Go to Step 3

2

Check condition of socket. If OK, locate and repair open in BLK (550) wire between inoperative lamp and S411.

Is repair complete?

--

Go to Backup Lamp System Check

--

3

Locate and repair open in LT GRN (24) wire between inoperative lamp and S410.

Is the repair complete?

--

Go to Backup Lamp System Check

--