GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 Body and Accessories 🢒 Body Rear End 🢒 Rear Compartment Lid Release Inoperative

Step

Action

Value(s)

Yes

No

1
  1. Connect a test lamp to ground.
  2. Backprobe the rear compartment lid release actuator terminal A.

Does the test lamp light?

--

Go to Step 3

Go to Step 2

2
  1. Connect a test lamp to ground.
  2. Backprobe the rear compartment lid release relay terminal C1 to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

3
  1. Inspect for a short to B+ in circuit 56 between the rear compartment lid release actuator and the rear compartment lid release relay.
  2. If the circuit is OK replace the rear compartment lid release relay.

Is the repair complete?

--

System OK

--

4
  1. Disconnect the rear compartment lid release relay connector.
  2. Momentarily connect a 15A fused jumper from terminal C1 to terminal A2 of the rear compartment lid release relay connector.

Does the rear compartment lid release actuator operate?

--

Go to Step 6

Go to Step 7

5

Repair the open in circuit 540 from the rear compartment lid release relay.

Is the repair complete?

--

System OK

--

6
  1. Connect a test lamp to ground.
  2. Backprobe the rear compartment lid release relay terminal C2.
  3. Operate the rear compartment lid release switch.

Does the test lamp light?

--

Go to Step 8

Go to Step 9

7
  1. Reconnect the 15A fused jumper from terminal C1 to terminal A2 of the rear compartment lid release relay connector.
  2. Connect a test lamp to ground.
  3. Backprobe the rear compartment lid release actuator connector terminal A.

Does the test lamp light?

--

Go to Step 10

Go to Step 11

8
  1. Connect a multimeter between the rear compartment lid release relay connector terminals C1(+) and terminal A1(-).
  2. Set the parking brake on vehicles equipped with a manual transmission.

    3. Place vehicles equipped with an automatic transmission in PARK or NEUTRAL.

  3. Test for 9 to 15 VDC between the test points listed.

Is 9 to 15 VDC present?

9-15 Volts

Go to Step 12

Go to Step 13

9
  1. Disconnect the body control module (BCM) connector C3 and connector C2.
  2. Connect a test lamp between the connector C2 terminal B and the connector C3 terminal D3.
  3. Press the rear compartment lid release switch.

Does the test lamp light?

--

Go to Step 16

Go to Step 17

10
  1. Disconnect the rear compartment lid release actuator.
  2. Connect a test lamp to the rear compartment lid release actuator connector from terminal A to terminal B.

Does the test lamp light?

--

Go to Step 14

Go to Step 15

11

Repair the open in circuit 56 between the rear compartment lid release relay and the rear compartment lid release actuator.

Is the repair complete?

--

System OK

--

12
  1. Inspect for faulty connections at the rear compartment lid release relay.
  2. If the connections are OK, replace the rear compartment lid release relay.

Is the repair complete?

--

System OK

--

13

Automatic Transmission

  1. Inspect for an open in circuit 816/434 between the rear compartment lid release relay and the park/neutral position switch.
  2. Inspect for an open in circuit 451 between the park neutral position switch and splice S215.
  3. Inspect for a faulty connection at the park/neutral switch.
  4. If the connections are OK, replace the park/neutral switch. Refer to Park/Neutral Position Switch Replacement .

Is the repair complete?

Manual Transmission

  1. Inspect for an open circuit 33.
  2. Inspect for faulty connections at the daytime running lamps module connector C2 terminal D and terminal E.
  3. Inspect Domestic and Gulf States vehicles for an open in circuit 1134 between the daytime running lamps (DRL) module and the park brake switch.
  4. If the circuits and connections are OK, replace the park brake switch. Refer to Park Brake Switch Replacement in Manual Transmission.

Is the repair complete?

--

System OK

--

14
  1. Inspect for faulty connections at the rear compartment lid release actuator.
  2. If the connections are OK, replace the rear compartment lid release actuator. Refer to Liftgate Lock Actuator Replacement .

Is the repair complete?

--

System OK

--

15

Repair an open in circuit 1550 between the rear compartment lid release actuator and splice S470.

Is the repair complete?

--

System OK

--

16

Connect a 20A fused jumper between the body control module (BCM) connector C2 terminal B and connector C3 terminal D4 momentarily.

Did the rear compartment lid release operate?

--

Go to Step 18

Go to Step 19

17
  1. Inspect for an open in circuit 1576 between the body control module (BCM) and the rear compartment lid release switch.
  2. Inspect for an open in circuit 650 between the rear compartment lid release switch and splice S216.
  3. If the circuits are OK, replace the rear compartment lid release switch Refer to Rear Compartment Lid Switch Replacement .

Is the repair complete?

--

System OK

--

18

Replace the body control module (BCM).

Is the repair complete?

--

System OK

--

19

Repair the open in circuit 253 between the body control module (BCM) and the rear compartment lid release relay.

Is the repair complete?

--

System OK

--