GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Lumina 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Courtesy Lamps Inoperative with Doors Open

Step

Action

Yes

No

1

Press LOCK, then UNLOCK on any power door lock switch.

Do the power door locks operate?

Go to Step  2

Go to Power Door Locks System Check in Doors

2

Are the lights inoperative on one door only?

Go to Step  3

Go to Step  4

3
  1. Remove the door trim panel of the door that does not turn on the courtesy lights.
  2. Disconnect the door lock electrical connector.
  3. Using a test lamp probe between B+ and the following connector terminals:
    4. • For the driver's door, the door lock harness connector terminal D.
    • For the passenger doors, the door lock harness connector terminal A.

Does the test lamp illuminate?

Go to Step  5

Go to Step  6

4
  1. Open any vehicle door.
  2. Using a test lamp backprobe between B+ and the headlamp switch connector terminal C.

Does the test lamp illuminate?

Go to Step  10

Go to Step  11

5
  1. Turn the ignition switch from LOCK to RUN position.
  2. Connect a 10A fused jumper between the door lock harness connector terminals A and D.

Do the courtesy lights illuminate?

Go to Step  7

Go to Step  8

6

Repair the poor connection or open in circuit 750 between the door lock harness connector terminal D and S303.

Is the repair complete?

Go to Step  9

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7
  1. Inspect the door lock harness connector for poor terminal contact.
  2. Replace the door lock assembly if the connector is OK.

    3. Refer to Front Side Door Lock Replacement (Front Door) or Rear Door Lock Replacement (Rear Door) in Doors.

Is the repair complete?

Go to Step  9

--

8

Repair the poor connection or open in circuit 49 between the door lock harness connector terminal A (or terminal D) and S309.

Is the repair complete?

Go to Step  9

--

9
  1. Turn the ignition switch to the LOCK position
  2. Reconnect any of the connectors or components that were removed.

Have all repairs been made?

Go to Interior Lamps System Check

--

10
  1. Inspect the headlamp switch connector for poor terminal contact.
  2. Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Is the repair complete?

Go to Step  9

--

11

Repair the poor connection or open in circuit 49.

Has the repair been made?

Go to Step  9

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