B009F
DTC B009F
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.
DTC Descriptors
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.
B009F 39
The serial data gateway module has not received a valid state of health message from the high voltage circuit impact detector sensor for 2.5 seconds.
B009F 3A
The wrong high voltage circuit impact detector sensor has been installed.
B009F 4A
The serial data gateway module calibration does not match the vehicle configuration.
B009F 73
The serial data gateway module has received invalid serial data from the high voltage circuit impact detector sensor.
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.
Diagnostic Aids
* The high voltage circuit impact detector sensor has many different internal configurations in the same external package. Ensure that the correct sensor part number is installed with the correct software programmed in the serial data gateway module.
* Turn the ignition OFF for 1 minute before using a scan tool to clear the DTC from the serial data gateway module. If the ignition is not OFF for 1 minute, the DTC may not clear.
Reference Information
Schematic Reference
Data Communication Schematics Electrical Diagrams
Connector End View Reference
Component Connector End Views Connector End Views By Name
Description and Operation
Drive Motor Generator Control Module Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Programming and Relearningfor scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
• If the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
• If the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
• If not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low reference circuit terminal 2 and ground.
• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
• If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
• If less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement
* Control Module References Programming and Relearningfor serial data gateway module replacement, setup, and programming