GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Epica 🢒 Body Systems 🢒 Lighting 🢒 Rear Compartment Lamp Inoperative

Test Description

The number below refers to the step number on the diagnostic table.

  1. Bulb test--Clip 1 end of a jumper wire to the negative battery terminal. Clip the other end of the jumper wire onto one end of the bulb. Take the end of the bulb without the jumper attached and touch it to the positive battery terminal.

Step

Action

Values

Yes

No

Caution: Do not connect a jumper cable directly to the negative terminal of a discharged battery to prevent sparking and possible explosion of battery gases.

1

  1. Remove the luggage compartment lamp bulb and inspect the filament.
  2. If the filament is not broken, test the bulb using the vehicle's battery and a jumper wire.

Does the bulb pass the visual and physical check?

--

Go to Step 3

Go to Step 2

2

Replace the bulb.

Is the repair complete?

--

System OK

--

3
  1. Reinstall the luggage compartment lamp bulb.
  2. Inspect fuse EF11.

Is fuse EF11 open?

--

Go to Step 4

Go to Step 5

4
  1. Inspect for a short circuit and repair it, if necessary.
  2. Replace the fuse.

Is the repair complete?

--

System OK

--

5

Measure the voltage at fuse EF11.

Does the voltage at fuse EF11 measure within the specified range?

11-14 V

Go to Step 7

Go to Step 6

6

Repair the open circuit between the battery and fuse EF11.

Is the repair complete?

--

System OK

--

7
  1. Disconnect the luggage compartment lamp electrical connector.
  2. Measure the voltage at the ORN wire.

Does the voltage at the ORN wire measure within the specified range?

11-14 V

Go to Step 8

Go to Step 9

8

Repair the open circuit between fuse EF11 and the luggage compartment lamp.

Is the repair complete?

--

System OK

--

9
  1. Reconnect the luggage compartment lamp.
  2. Remove the luggage compartment lamp switch.
  3. With a voltmeter or test lamp, test the circuit wire, terminal 2, at the luggage compartment lamp switch.

Does the voltage at the luggage compartment lamp switch measure within the specified range?

11-14 V

Go to Step 11

Go to Step 10

10

Repair the open circuit between the luggage compartment lamp and the luggage compartment lamp switch.

Is the repair complete?

--

System OK

--

11

Use an ohmmeter to measure the resistance between ground and the luggage compartment lamp switch.

Is the resistance equal tot he specified value?

0 ohms

Go to Step 12

Go to Step 13

12

Replace the luggage compartment lamp switch.

Is the repair complete?

--

System OK

--

13

Repair the ground circuit for the luggage compartment lamp switch.

Is the repair complete?

--

System OK

--