GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Rear Compartment Lid Release System Check performed?

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Go to Step 2

Go to Rear Compartment Lid Release System Check

2

Was the BCM Diagnostic System Check performed?

--

Go to Step 3

Go to Diagnostic System Check - Body Control System in Body Control System

3

Disconnect the rear compartment lid lock release actuator connector.

Will the trunk lid latch?

--

Go to Step 4

Go to Step 5

4

  1. Disconnect the rear compartment lid release relay.
  2. Use a test light in order to probe between the relay terminal A2 and ground.

Does the test light illuminate?

--

Go to Step 6

Go to Step 7

5

  1. Check the lock assembly and the release actuator for mechanical interference. Refer to Release Actuator Replacement for service procedure.
  2. Repair or replace as necessary.

Is the repair complete?

--

Go to Step 8

--

6

Repair a short to B+ in circuit 56.

Is the repair complete?

--

Go to Step 8

--

7

Replace the rear compartment lid release relay.

Is the repair complete?

--

Go to Step 8

--

8

  1. Turn the ignition switch to the LOCK position.
  2. Reconnect all the connectors/components that have been disconnected.

Are all repairs complete?

--

Go to Rear Compartment Lid Release System Check

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