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

  1. With a test light, connect between the rear compartment lid release relay terminal C2 and B+.
  2. Using a Tech 2, activate the rear compartment lid lock release actuator.

Does the test light illuminate?

--

Go to Step 4

Go to Step 3

3

  1. With a test light ,backprobe between the BCM connector C2 terminal B12 and B+.
  2. Using a Tech 2, activate the rear compartment lid lock release actuator.

Does the test light illuminate?

--

Go to Step 13

Go to Step 8

4

  1. With a test light ,backprobe between the rear compartment lid lock release actuator connector terminal A and terminal B.
  2. Using a Tech 2, activate the rear compartment lid lock release actuator.

Does the test light illuminate?

--

Go to Step 9

Go to Step 5

5

With a test light ,connect between the rear compartment lid lock release actuator terminal B and B+.

Does the test light illuminate?

--

Go to Step 6

Go to Step 11

6

With a test light ,connect between the rear compartment lid release relay connector terminal C1 and ground.

Does the test light illuminate?

--

Go to Step 7

Go to Step 12

7

  1. Using a 5 A fused jumper, connect between the rear compartment lid release relay terminal C1 and terminal A2.
  2. With a test light ,connect between the rear compartment lid lock release actuator terminal A and ground.

Does the test light illuminate?

--

Go to Step 10

Go to Step 14

8

  1. Replace the BCM. Refer to Body Control Module Replacement in Body Control Systems for service procedure.
  2. Perform the new BCM setup procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control Systems for service procedure.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

9

Replace the rear compartment lid lock release actuator. Refer to Release Actuator Replacement for service procedure.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

10

Replace the rear compartment lid release relay.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

11

Repair the open in circuit  350.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

12

Repair the open in circuit  1540.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

13

Repair the open in circuit  253.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

--

14

Repair the open in circuit  56.

Is the repair complete?

--

Go to Rear Compartment Lid Release System Check

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