2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 87

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 87

If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup, and

programming

B009F

DTC B009F

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 B009F 00

- High Voltage Crash Impact Detection Sensor 1 No Additional Information

DTC B009F 11

- High Voltage Crash Impact Detection Sensor 1 Above Maximum Threshold

DTC B009F 12

- High Voltage Crash Impact Detection Sensor 1 Below Minimum Threshold

DTC B009F 39

- High Voltage Crash Impact Detection Sensor 1 Internal Electronic Failure

DTC B009F 3A

- High Voltage Crash Impact Detection Sensor 1 Incorrect Component Installed

DTC B009F 4A

- High Voltage Crash Impact Detection Sensor 1 Checksum Error

DTC B009F 73

- High Voltage Crash Impact Detection Sensor 1 Parity Error

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates

current on the circuit interface to send ID, state of health, and collision status to the serial data gateway module. The serial data gateway module