B008B

DTC B008A or B008B

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (with HP2) (Initial Inspection and Diagnostic Overview)Diagnostic System Check - Vehicle (without HP2) (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptor
DTC B008A 00
- High Voltage Crash Impact Detection Sensor 2

DTC B008B 00
- High Voltage Crash Impact Detection Sensor 3

Circuit/System Description

The high voltage circuit impact detector (HVCID) sensor utilizes a unidirectional 2-wire circuit. The HVCID sensor modulates current on the circuit interface to send ID, state of health, and deployment commands to the serial data gateway (SDG) module. The SDG module serves as a power source and a ground for the HVCID sensor. When the ignition is turned ON and input power from the SDG module is first detected, the HVCID sensor responds by performing internal diagnostics and sending an ID to the SDG module. The HVCID sensor continually communicates status messages to the SDG module. Some applications use multiple HVCID sensors.

This vehicle does not use crash sensor 2 or 3. These DTCs can only set if the incorrect software is installed in the SDG module.

Conditions for Running the DTC

* The ignition is ON.
* The battery voltage is 7.5-18 V.

Conditions for Setting the DTC

B008A 00 or B008B 00

Sensor 2 or 3 is reporting a state-of-health message, but the SDG module is not calibrated to use sensor 2 or 3.

Action Taken When the DTC Sets

The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.

Conditions for Clearing the DTC

* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Reference Information
Schematic Reference

Data Communication Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Drive Motor Generator Control Module Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

Verify that DTCs B008A and B008B are not set.

If the DTC is set, program the SDG module. If the DTC resets, replace the SDG module.

Repair Instructions

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

Control Module References (Programming and Relearning) - for SDG module replacement, setup, and programming.