Thursday, August 8, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 6


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



serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power from the



serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics and sending



an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to the serial data



gateway module,



Conditions for Running the DTC



* The ignition is ON.



* The battery voltage is 7.5-18 V.



Conditions for Setting the DTC



B009F 00



The serial data gateway module is not programmed to use high voltage circuit impact detector sensor 1.



B009F 11



The high voltage circuit impact detector sensor signal circuit is shorted to voltage for 2.5 seconds.



B009F 12



The high voltage circuit impact detector sensor signal circuit is shorted to ground for 2.5 seconds.

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