GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 G3 🢒 Body Systems 🢒 Lighting 🢒 Backup Lamps Inoperative

Backup Lamps Inoperative Hatchback

Step

Action

Values

Yes

No

1
  1. Block the wheels.
  2. Apply the parking brake to prevent the vehicle from moving.
  3. Turn ON the ignition, with the engine OFF.
  4. Put the transaxle in reverse (R).
  5. Remove 1 of the backup lamps from its socket.
  6. Test the lamp socket positive terminal with a voltmeter.

Does the battery voltage available at the backup lamp socket positive terminal equal the specified value?

11-14 V

Go to Step 3

Go to Step 2

2

Repair the open circuit between fuse F5 and the backup lamps.

Is the repair complete?

--

System OK

--

3

Connect an ohmmeter between ground and the negative terminal at the bulb socket.

Does the ohmmeter indicate continuity?

--

Go to Step 4

Go to Step 5

4

Replace the faulty backup lamps.

Is the repair complete?

--

System OK

--

5
  1. Reinstall the backup lamps.
  2. Disconnect the electrical connector at the reverse switch. On automatic transaxle (A/T) vehicles, disconnect the neutral safety/backup switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Put the transaxle in R.
  5. Measure the voltage at the reverse switch terminal 1. On A/T vehicles, measure at terminal 3 of the neutral safety/backup switch.

Does the battery voltage available at terminal 1, or terminal 3, if equipped with A/T, equal the specified value?

11-14 V

Go to Step 7

Go to Step 6

6

Repair the open circuit between the backup lamps and the, reverse switch or the neutral safety/backup switch if equipped with A/T.

Is the repair complete?

--

System OK

--

7
  1. Put the transaxle in R.
  2. Use an ohmmeter to measure the continuity between reverse switch terminal 1 and terminal 2, or terminals 3 and 2 on the neutral safety/backup switch, if equipped with A/T.

Does the ohmmeter indicate continuity between terminals 1 and 2, terminals 3 and 2, if equipped with A/T?

--

Go to Step 9

Go to Step 8

8

Replace the reverse switch, neutral safety/backup switch, if equipped with A/T.

Is the repair complete?

--

System OK

--

9

Repair the ground circuit between the reverse switch, neutral safety/backup switch, if equipped with A/T, and ground G402.

Is the repair complete?

--

System OK

--

Backup Lamps Inoperative Notchback

Step

Action

Values

Yes

No

1
  1. Block the wheels.
  2. Apply the parking brake to prevent the vehicle from moving.
  3. Turn the ignition ON.
  4. Put the transaxle in reverse (R).
  5. Remove one of the backup lamps from its socket.
  6. Test the lamp socket positive terminal with a voltmeter.

Does the battery voltage available at the backup lamp socket positive terminal equal the specified value?

11-14V

Go to Step 3

Go to Step 2

2

Repair the open circuit between fuse F17 and the backup lamps.

Is the repair complete?

--

System OK

--

3

Connect an ohmmeter between ground and the negative terminal at the bulb socket.

Is the resistance within the specified value?

<1.0 ohms

Go to Step 4

Go to Step 5

4

Replace the faulty backup lamps.

Is the repair complete?

--

System OK

--

5
  1. Reinstall the backup lamps.
  2. Disconnect the electrical connector at the reverse switch. (On automatic transaxle (A/T) vehicles, disconnect the neutral safety/backup switch.)
  3. Turn the ignition ON.
  4. Put the transaxle in reverse (R).
  5. Use a voltmeter to check for the reverse switch terminal 1. (On A/T vehicles, test terminal 3(7) of the neutral safety/backup switch.)

Does the battery voltage available at terminal 1 (or terminal 3(7), if equipped with A/T) equal the specified value?

11-14V

Go to Step 7

Go to Step 6

6

Repair the open circuit between the backup lamps and the reverse switch (or the neutral safety/backup switch if equipped with A/T).

Is the repair complete?

--

System OK

--

7
  1. Put the transaxle in reverse (R).
  2. Use an ohmmeter to check the continuity between reverse switch terminal 1 and terminal 2 (terminals 3(7) and 2(2) on the neutral safety/backup switch, if equipped with A/T).

Does the continuity between terminals 1 and 2 (terminals 3(7) and 2(2), if equipped with A/T) equal the specified value?

0 ohms

Go to Step 9

Go to Step 8

8

Replace the reverse switch (neutral safety/backup switch, if equipped with A/T).

Is the repair complete?

--

System OK

--

9

Repair the ground circuit between the reverse switch (neutral safety/backup switch, if equipped with A/T) and ground G402.

Is the repair complete?

--

System OK

--