• | 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 | 1 | -- |
Liftgate Release Relay Control | B3265 06 | B3265 06 | B3265 01 | -- |
Liftgate Door Latch Control | 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 liftgate can be released by pressing the liftgate touchpad located in the handle above the license plate. All doors must be unlocked, the transaxle must be in park or a vehicle with a manual transaxle, the vehicle must be stationary for the liftgate to release.
Pressing the liftgate release switch closes a contact providing a ground for the liftgate release switch signal circuit. The body control module (BCM) will detect the voltage drop and command voltage to be supplied to the liftgate release relay control circuit thus energizing the L/GATE RELSE relay which provides voltage to the release actuator releasing the liftgate.
Rear Hatch/Gate Description and Operation
Control Module References for scan tool information
⇒ | If the parameter does not change, refer to Liftgate Release Switch Malfunction. |
⇒ | If the liftgate door latch does not release the liftgate, refer to Liftgate Release Malfunction. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If not the specified value, test the signal circuit terminal B for a short to ground. If the circuit tests normal, replace the BCM. |
⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp illuminates, test the control circuit for a short to voltage. |
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the liftgate door latch does not activate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the liftgate door latch. |
⇒ | If the test lamp is always OFF, test the control circuit for an open/high resistance. |
⇒ | If the test lamp is always ON, test the control circuit for a short to ground. |
⇒ | 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 actuator does not perform as specified, replace the liftgate door latch. |
⇒ | If not the specified value, replace the liftgate release switch. |
⇒ | If greater than the specified range, replace the liftgate release switch. |
⇒ | If 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 |