• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Relay Switch B+ | 1,2 | 1,2 | -- | -- |
Liftgate Release Switch Signal | 1 | 1 | -- | -- |
Liftgate Release Relay Control | B3265 06 | B3265 06 | B3265 01 | -- |
Relay Controlled Output Circuit | 2 | 2 | 2 | -- |
Liftgate Release Switch Ground | -- | 1,2 | 1,2 | -- |
Liftgate Door Latch Ground | -- | 2 | 2 | -- |
1. Liftgate Release Switch Inoperative 2. Liftgate Release Inoperative |
The body control module (BCM) provides voltage to the liftgate release relay control circuit thus energizing the LIFTGATE RELEASE Relay which provides voltage to the release actuator releasing the liftgate.
Battery voltage must be between 9-16 volts.
This DTC will set when the BCM detects a short to battery in the liftgate release relay control circuit.
This DTC will set when the BCM detects an open or short to ground in the liftgate release relay control circuit.
• | The BCM stores the DTC to memory. |
• | The rear compartment lid latch will malfunction. |
• | This DTC will change from current to history when the fault is no longer present. |
• | A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present. |
• | The technician issues a scan tool CLEAR DTCs command. |
Vehicle Access Connector End Views
Liftgate Description and Operation
Command the liftgate release with the scan tool. The liftgate door latch release actuator should release the liftgate.
⇒ | If greater than the specified range, test for an open/high resistance. |
⇒ | If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If the resistance is not within the specified range, replace the relay. |
• | 30 and 86 |
• | 30 and 87 |
• | 30 and 85 |
• | 85 and 87 |
⇒ | If not the specified value, replace the relay. |
⇒ | If greater than the specified range, replace the relay |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup and programming |