Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC B008A 00: High Voltage Crash Impact Detection Sensor 2DTC B008B 00: High Voltage Crash Impact Detection Sensor 3
Circuit/System Description
The high voltage crash impact detector (HVCID) utilizes a unidirectional 2-wire circuit. The HVCID modulates current on the interface to send ID, state of health, and deployment commands to the serial data gateway module (SDGM). The SDGM serves as a power source and a ground for the HVCID. When the ignition is turned ON and input power from the SDGM is first detected, the HVCID responds by performing internal diagnostics and sending an ID to the SDGM. The HVCID continually communicates status messages to the SDGM. 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 SDGM.
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 SDGM 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
DTCs B008A and B008B are type C DTCs.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Drive Motor Generator Control Module Description and Operation
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify that DTCs B008A and B008B are not set.
| ⇒ | If the DTC is set, program the SDGM. If the DTC resets, replace the SDGM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References - for SDGM replacement, setup, and programming.
