B1B71

B1B71 - Front Right Satellite Acceleration Sensor Internal

For a complete wiring diagram, refer to.

Theory of Operation

Impact sensors perform their own self test using power supplied by the occupant restraint controller then communicate this status back to the module. The repair of this fault centers on verifying the integrity of the sensor's internal circuitry and software validity.

• When Monitored: The impact sensor performs a self test for internal circuitry at power up during the initialization process, and continuously through the ignition cycle every 10 ms.

• Set Condition: This DTC sets when the ORC receives notification of a self test failure within the impact sensor. Once set, this DTC is latched for the entire ignition cycle.






Always perform the Pre - Diagnostic Troubleshooting procedure before proceeding.

Test Step 1 - Check for Other Sensor Internal DTCs

• Ensure the battery is fully charged.

• Turn the ignition ON.

• With the scan tool, read ORC DTCs.

Are there any other Sensor Internal DTCs present?

Yes

• Inspect the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.

• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test

No

• Go to Test Step 2 => [ Test Step 2 - Check Operation of the Front Right Impact Sensor ]

Test Step 2 - Check Operation of the Front Right Impact Sensor


Turn the ignition OFF, disconnect the 12 volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

• Replace the right front impact sensor.

• Reconnect the vehicle body harness to the impact sensor.

• Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.


Turn the ignition ON, then reconnect the 12 volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

• Connect the scan tool to the DLC - use the most current software available.

• Use the scan tool and erase the stored codes in all airbag system modules.

• the ORC reset function must be performed after the repair to force the module to retest for this DTC.

• Perform ORC module reset. Access the miscellaneous function menu from the ORC ECU overview screen on the scan tool to perform this operation.

• Wait one minute, and read active codes.

Did the active B1B71 - Right Front Satellite Acceleration Sensor Internal DTC return?

Yes

• Replace the ORC..

• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test


If the occupant restraint controller is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.


Turn the ignition OFF, disconnect the 12 volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

No

• Repair is complete.

• Perform the Restraints System Intermittent Test. Refer to => Non - DTC Based Diagnostics. ORC Restraints System Intermittent Test