2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 254

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 254

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

Hall effect sensors.

Conditions for Running the DTC

The system voltage is 9-16 volts.

Conditions for Setting the DTC

B153E 02

The LGM detects a short to ground in the liftgate motor assembly position sensor circuit.

B153E 05

The LGM detects a short to voltage or an open/high resistance in the liftgate motor assembly position sensor circuit.