• | 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. |
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.
• | The ignition is ON. |
• | The battery voltage is 7.5-18 V. |
Sensor 2 or 3 is reporting a state-of-health message, but the SDGM is not calibrated to use sensor 2 or 3.
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
DTCs B008A and B008B are type C DTCs.
Drive Motor Generator Control Module Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
Verify that DTCs B008A and B008B are not set.
⇒ | If the DTC is set, program the SDGM. If the DTC resets, replace the SDGM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References - for SDGM replacement, setup, and programming.