GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Spark 🢒 Body Hardware and Trim 🢒 Instrument Panel and Console Trim 🢒 Rear Compartment Lamp Inoperative

Test Description

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

  1. Bulb test. Clip one 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 free end of the bulb (the end without the jumper attached) and touch it to the positive battery terminal.

Step

Action

Values

Yes

No

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. Check fuse Ef4 and F3.

Is fuse Ef4 and F3 blown?

--

Go to Step 4

Go to Step 5

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

Is the repair complete?

--

System OK

--

5

Check fuse F3.

Does the voltage at fuse F3 equal the specified value?

11-14 V

Go to Step 7

Go to Step 6

6

Repair the open power supply circuit for fuse F3.

Is the repair complete?

--

System OK

--

7
  1. Disconnect the luggage compartment lamp electrical connector.
  2. Check the voltage at the yellow wire.

Does the voltage at the YEL wire equal the specified value?

11-14 V

Go to Step 8

Go to Step 9

8

Repair the open circuit between fuse F3 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 PNK wire at the luggage compartment lamp switch.

Does the voltage at the luggage compartment lamp switch equal the specified value?

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 check the resistance between ground and the BLK wire at the luggage compartment lamp switch connector (harness side).

Is the resistance equal to the 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 interior courtesy lamp.

Is the repair complete?

--

System OK

--