2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 633
* Wireless Communication Interface Antenna Replacement (See: Accessories and Optional Equipment/Antenna/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for CIM replacement, setup, and programming
Power Liftgate
DTC B2494 (Power Liftgate)
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 Descriptor
DTC B2494 02
- Liftgate Handle Switch Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The power liftgate button and exterior liftgate handle switch are parallel circuits and provide a single input to the liftgate module (LGM). The
liftgate switches are supplied voltage and share a common low reference circuit from the LGM. When the switch contacts close, the LGM detects
the voltage drop and commands the liftgate to open or close depending upon the position of the liftgate at the time.
Conditions for Running the DTC
The system voltage is 9-16 volts.
Conditions for Setting the DTC
