2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 562
B2495
Liftgate Latch Release/Cinch Malfunction - DTC B2495
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B2495 01
- Liftgate Latch Control Circuit Short to Battery
DTC B2495 02
- Liftgate Latch Control Circuit Short to Ground
DTC B2495 04
- Liftgate Latch Control Circuit Open
Diagnostic Fault Information
Circuit/System Description
The latch motor is a bi-directional motor and cinch or unlatch operation is the result of the direction of the motor rotation. The liftgate control
module controls the latch motor through the control circuits by supplying power and ground in the appropriate polarity. The motor control circuits
are monitored by the liftgate control module prior to activation for a high or low condition and during motor operation for an insufficient current
flow condition.
Conditions for Running the DTC
The system voltage is 9-16 V.
Conditions for Setting the DTC
B2495 01
The liftgate control module detects a short to voltage in the liftgate latch motor cinch control circuit or the liftgate latch motor release control
circuit.
B2495 02
The liftgate control module detects a short to ground in the liftgate latch motor cinch control circuit or the liftgate latch motor release control
circuit.
B2495 04
The liftgate control module detects an open/high resistance in the liftgate latch motor cinch control circuit or the liftgate latch motor release control
circuit.
Action Taken When the DTC Sets
The liftgate will be inoperative in the power and manual modes.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
* When the fault is no longer present, the DTC will be a history DTC.
* A history DTC will clear after 50 ignition cycles.
