Right Front Side Impact Sensor


Table of contents

B0086 CADILLAC Possible Causes

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

How do I fix code B0086 CADILLAC?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Tech Notes

  • DTC B0086 02 Right Front Side Impact Sensor Short to Ground
  • DTC B0086 05 Right Front Side Impact Sensor Short to Battery or Open
  • DTC B0086 0F Right Front Side Impact Sensor Erratic
  • DTC B0086 39 Right Front Side Impact Sensor Internal Electronic Failure
  • DTC B0086 3A Right Front Side Impact Sensor Incorrect Component Installed
  • DTC B0086 71 Right Front Side Impact Sensor Invalid Serial Data Received

Cost of diagnosing the B0086 CADILLAC code

  The cost of diagnosing the B0086 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Air Bag Warning Light ON

B0086 CADILLAC Description

  The Inflatable Restraint Side Impact Sensor (SIS) utilizes a unidirectional 2-wire circuit. The SIS modulates current on the interface to send ID, state of health, and deployment commands to the Inflatable Restraint Sensing and Diagnostic Module (SDM). The SDM serves as a power source and a ground for the SIS. When the ignition is turned ON and input power from the SDM is first detected, the SIS responds by performing internal diagnostics and sending an ID to the SDM. The SDM considers the ID to be valid if the response time is less than 5 seconds. The SIS continually communicates status messages to the SDM, which determines if a fault is present in the SIS circuit. When a fault is detected, the SDM resets the SIS twice by removing and reapplying power to it. If the fault is still present, the SDM will set a Diagnostic Trouble Code (DTC).

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