B101D BUICK - Electronic Control Unit Hardware

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B101D BUICK Possible Causes

  • Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)
  • Inflatable Restraint Sensing and Diagnostic Module (SDM) harness is open or shorted
  • Inflatable Restraint Sensing and Diagnostic Module (SDM) circuit poor electrical connection

B101D BUICK Tech Notes

B101D F0 set in the BCM after a dead battery event. The rare condition that sets B101D F0 is an extreme dead battery case. It is NOT the cause of the dead battery, but the extreme low voltage is a trigger that causes this Diagnostic Trouble Code (DTC) to set. If DTC B101D SYM F0 is set current in the Body Control Module (BCM), clear the codes. If DTC B101D SYM F0 clears with no other symptoms, DO NOT replace the BCM.

B101D 00 Electronic Control Unit Hardware Malfunction
B101D 04 Electronic Control Unit Hardware Open
B101D 08 Electronic Control Unit Hardware Performance - Signal Invalid
B101D 0F Electronic Control Unit Hardware Signal Erratic
B101D 12 Electronic Control Unit Hardware Low Input
B101D 13 Electronic Control Unit Hardware Low Voltage/High Temperature
B101D 14 Electronic Control Unit Hardware High Voltage/Low Temperature
B101D 1A Electronic Control Unit Hardware Performance - Bias Level Out of Range
B101D 2B Electronic Control Unit Hardware Missing Reference
B101D 2C Electronic Control Unit Hardware
B101D 31 Electronic Control Unit Hardware Internal Checksum Error
B101D 32 Electronic Control Unit Hardware General Memory Malfunction
B101D 34 Electronic Control Unit Hardware RAM Malfunction
B101D 35 Electronic Control Unit Hardware ROM Malfunction
B101D 36 Electronic Control Unit Hardware EEPROM Performance/Malfunction
B101D 37 Electronic Control Unit Hardware Software Malfunction
B101D 38 Electronic Control Unit Hardware Supervision Software Malfunction
B101D 39 Electronic Control Unit Hardware Internal Malfunction
B101D 3A Electronic Control Unit Hardware Incorrect Component Installed
B101D 3B Electronic Control Unit Hardware Self-Test Malfunction
B101D 3C Electronic Control Unit Hardware Internal Communication Malfunction
B101D 43 Electronic Control Unit Hardware EEPROM Incorrect Programming
B101D 73 Electronic Control Unit Hardware Parity Error
B101D F0 Electronic Control Unit Hardware
B101D F1 Electronic Control Unit Hardware

Cost of diagnosing the B101D BUICK code

    Labor: 1.0

    The cost of diagnosing the B101D BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B101D BUICK Possible Symptoms

  • Air Bag Warning Light ON

B101D BUICK Meaning

The internal fault detection is handled inside the control module. The symptom byte listed in the Diagnostic Trouble Code (DTC) Descriptor is for engineering reference only. No external circuit diagnosis is involved. If DTC B101D is set as history or current in the Inflatable Restraint Sensing and Diagnostic Module (SDM) and there are Air Bag or Pretensioner DTCs, it is important to repair the deployment loop issue first prior to replacing K36 SDM. Failure to repair the Air Bag or Pretensioner wiring concern first may cause B101D to reset in the replacement SDM. This DTC may be stored as a history DTC without affecting the operation of the control module.
OBDII Code B101D BUICK - Electronic Control Unit Hardware - Engine-Codes.com

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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