• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Signal | B009F 12 | B009F 39 | B009F 11 | B009F 73 |
Low Reference | -- | B009F 39 | -- | B009F 73 |
Circuit | Short to Ground | Open | Short to Voltage |
---|---|---|---|
Operating Conditions: Ignition ON, engine OFF. Parameter Normal Value: No Crash | |||
Signal | Sensing Failed | Sensing Failed | Sensing Failed |
Low Reference | No Crash* | Sensing Failed | -- |
*The scan tool will update after 12.5 seconds. |
The high voltage crash impact detection (HVCID) sensor utilizes a unidirectional 2-wire circuit. The HVCID modulates current on the interface to send ID, state of health, and collision status 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, which determines if a failure is present in the HVCID circuit.
• | The ignition is ON. |
• | The battery voltage is 7.5-18 V. |
The SDGM is not programmed to use sensor 1.
The HVCID signal circuit is shorted to voltage for 2.5 seconds.
The HVCID signal circuit is shorted to ground for 2.5 seconds.
The SDGM has not received a state of health message from the sensor for 2.5 seconds.
The wrong HVCID sensor has been installed.
The SDGM calibration does not match the vehicle configuration.
The SDGM has received invalid serial data from the HVCID sensor.
• | DTC B009F is a type C DTC. |
• | The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message. |
• | DTC B009F is a type C DTC. |
• | DTCs B009F 11, B009F 12, and B009F 39 will pass when the condition for setting the DTC is not present for 12.5 seconds. |
• | The DIC message turns OFF when the DTC passes. |
• | The SDGM will clear all history DTCs after 40 consecutive malfunction-free ignition cycles. |
The HVCID sensor has many different internal configurations in the same external package. Ensure that the correct sensor part number is installed in the correct location.
Drive Motor Generator Control Module Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
Verify that DTC B009F 00 or B009F 4A is not set.
⇒ | If the DTC is set, program the SDGM. If the DTC resets, replace the SDGM. |
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the SDGM. |
⇒ | If not the specified value, test the signal circuit terminal 1 for a short to ground or a short to voltage. If the circuit tests normal, replace the SDGM. |
⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the SDGM. |
⇒ | If the correct sensor is not installed, replace the sensor. |
⇒ | If the correct software is not installed, program the SDGM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References - for SDGM replacement, setup, and programming. |