2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 253

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 253

Control Module References (See: Testing and Inspection/Programming and Relearning) for LGM replacement, setup and programming

B153E

DTC B153E

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 B153E 02

- Liftgate Position Sensor Signal Circuit Short to Ground

DTC B153E 05

- Liftgate Position Sensor Signal Circuit Short to Battery or Open

DTC B153E 08

- Liftgate Position Sensor Signal Circuit Signal Invalid

Diagnostic Fault Information

Circuit/System Description

The liftgate control module (LGM) continuously monitors power liftgate operation and calculates its location and direction of travel using 2 Hall

effect sensors that are part of the gear motor assembly. The Hall effect sensors are 5-volt 3-wire sensors and are supplied with a 5-volt power,

ground and signal circuits from the LGM. The Hall effect sensor signal circuits are referenced from voltage within the LGM and pulsed low by the