Circuit Description
The rear compartment lid release solenoid is controlled by the body control module (BCM). The BCM supplies battery positive voltage to the rear compartment lid release solenoid when the keyfob trunk release button is pressed. When the rear compartment lid release control circuit is shorted to battery positive voltage for a minimum of 30 seconds, DTC B3268 is set.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B3268 Trunk Release Output Circuit High
Conditions for Running the DTC
Voltage supplied to the BCM is in the normal operating range, approximately 9-16 volts.
Conditions for Setting the DTC
The rear compartment lid control circuit is shorted to battery positive voltage for a minimum 30 seconds.
Action Taken When the DTC Sets
| • | The rear compartment lid release solenoid output is constantly on. |
| • | The BCM stores DTC B3268 in memory. |
Conditions for Clearing the DTC
| • | A current DTC B3268 will clear when the malfunction is no longer present. |
| • | All BCM history codes clear after 100 ignition cycles, from OFF to ON, with no current codes active during the 100 ignition cycles. |
| • | Current and history codes may be cleared using the scan tool. |
Diagnostic Aids
| • | If the rear compartment lid release control circuit is shorted to battery positive voltage, the rear compartment lid will not latch closed. |
| • | If the DTC is a history DTC, the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
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Listen for an audible click when the rear compartment lid release solenoid operates. Command both the ON and OFF states. Repeat the commands as necessary.
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Verifies that the BCM is providing voltage to the rear compartment lid release solenoid.
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Tests for an open in the ground circuit to the rear compartment lid release solenoid.
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Tests if voltage is constantly being applied to the rear compartment lid release solenoid.
Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Does the rear compartment lid release solenoid turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | |
Does the test lamp turn ON and OFF with each command? | Go to Step 4 | Go to Step 5 | |
Does the test lamp turn ON and OFF with each command? | Go to Step 8 | Go to Step 10 | |
Does the test lamp remain illuminated with each command? | Go to Step 7 | Go to Step 6 | |
6 | Test the control circuit of the rear compartment lid release solenoid for a short to battery positive voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9 |
7 | Test the control circuit of the rear compartment lid release solenoid for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9 |
8 | Inspect for poor connections at the rear compartment lid release solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 11 |
9 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 12 |
10 | Repair the ground circuit of the rear compartment lid release solenoid. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 13 | -- |
11 | Replace the rear compartment lid release solenoid. Did you complete the replacement? | Go to Step 13 | -- |
12 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 13 | -- |
13 |
Does the DTC reset? | Go to Step 2 | System OK |
