GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2000 🢒 Eldorado 🢒 Body and Accessories 🢒 Body Rear End 🢒 Rear Compartment Lid Release Inoperative

Step

Action

Value(s)

Yes

No

1

Did you perform the rear compartment lid release system check?

--

--

Go to Rear Compartment Lid Release System Check

2
  1. Place the transaxle in the PARK position.
  2. Turn the valet switch OFF.
  3. Connect the scan tool to the data link connector (DLC).
  4. Turn the valet lockout OFF.
  5. Press the rear compartment release switch.

Does the body control module (PZM) command the rear compartment lid release ON?

--

Go to Step 3

Go to Step 7

3
  1. Disconnect the rear compartment lid release relay.
  2. Connect a test lamp between terminal D4 and ground, and terminal D6 to ground.

Does the test lamp light at both terminals?

--

Go to Step 4

Go to Step 14

4
  1. Connect the test lamp between terminal D4 and terminal C6.
  2. Press the rear compartment lid release switch.

Does the test lamp light?

--

Go to Step 5

Go to Step 15

5

Connect a fused jumper between terminal D6 and terminal C4.

Does the rear compartment lid open?

--

Go to Step 6

Go to Step 16

6

Replace the rear compartment lid release relay.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 7

7

Observe the scan tool.

Does the PZM indicate that the valet switch is OFF?

--

Go to Step 8

Go to Step 11

8

Using the scan tool, observe the status of the park neutral position switch.

Does the status show that the vehicle is in PARK?

--

Go to Step 9

Go to Step 10

9

Replace the PZM. Refer to Body Control Module Replacement in Body Control System.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 11

10

Inspect the wiring to the automatic transaxle internal mode switch and any related circuits. Perform any necessary repairs.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 11

11
  1. Disconnect the valet switch.
  2. Connect a fused jumper from valet lockout switch connector terminal A to ground.
  3. Observe the scan tool.

Does the PZM indicate that the valet lockout switch is OFF?

--

Go to Step 12

Go to Step 13

12
  1. Inspect CKT 151 (BLK/WHT) for an open. Repair as necessary.
  2. If OK, replace the valet lockout switch.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 13

13
  1. Inspect CKT 1355 (DK BLU/WHT) for an open. Repair as necessary.
  2. If OK, replace the PZM. Refer to Body Control Module Replacement in Body Control System.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 14

14

Repair the open or short to ground in one of the following circuits:

    • CKT 40 (ORN)
    • CKT 2040 (ORN)

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 15

15
  1. Inspect CKT 1344 (LT BLU) for an open. Repair as necessary.
  2. If OK, replace the PZM. Refer to Body Control Module Replacement in Body Control System.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 16

16
  1. Ensure that the fused jumper is still connected.
  2. Disconnect the rear compartment lid release solenoid.
  3. Connect a test lamp between terminal A and ground.

Does the test lamp light?

--

Go to Step 17

Go to Step 18

17
  1. Verify that the rear compartment lid release solenoid connector is clean and tight.
  2. If OK, replace the rear compartment lid release solenoid.

Does the rear compartment lid release operate properly?

--

Go to Rear Compartment Lid Release System Check

Go to Step 18

18

Repair the open in CKT 56 (BLK/WHT).

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

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