GM Service Manual Online
For 1990-2009 cars only

Rear hatch release inop

Step

Action

Value(s)

Yes

No

DEFINITION: The fog lamp switch/rear compartment lid release switch (domestic)/Rear compartment lid/fuel tank filler door lock release switch (export) does not release the rear compartment lid when activated.

1

Check if any DTC codes are set.

Were there any codes?

--

Go to Body Control System Diagnostic System Check

Go to Step 2

2

  1. Disconnect the fog lamp switch/rear compartment lid release switch (domestic)/Rear compartment lid/fuel tank filler door lock release switch (export).
  2. Use the DMM to measure the voltage at terminal D (export) or terminal 1 (domestic) of the switch.

Is the voltage within the specified range?

10.0-14.0V

Go to Step 3

Go to Step 5

3

Use the DMM to check for continuity between terminal 6 (domestic) or terminal B (export) of the fog lamp switch/rear compartment lid release switch (domestic)/rear compartment lid/fuel tank filler door lock release switch (export) and connector C2 terminal Da of the Body Control Module (BCM).

Is there continuity?

--

Go to Step 4

Go to Step 6

4

Replace the fog lamp switch/rear compartment lid release switch (domestic)/rear compartment lid/fuel tank filler door lock release switch (export).

Is the repair complete?

--

Recheck System Operation

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5

Repair the open in CKT 2840.

Is the repair complete?

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Recheck System Operation

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6

Repair the open in CKT 1576.

Is the repair complete?

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Recheck System Operation

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