Engine-Codes
 
OBDII Code List
 
B0090 CHEVROLET

B0090 CHEVROLET - Rollover Sensor Erratic

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

B0090 CHEVROLET Possible Causes

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

First diagnose B0090 CHEVROLET code

    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 terminals.

B0090 CHEVROLET Tech Notes

DTC B0090 00 Rollover Sensor No Additional Information
DTC B0090 0F Rollover Sensor Erratic
DTC B0090 3A Rollover Sensor Incorrect Component Installed
DTC B0090 39 Rollover Sensor Internal Electronic Failure
DTC B0090 71 Rollover Sensor Invalid Serial Data Received

Cost of diagnosing the B0090 CHEVROLET code

    Labor: 1.0

    The cost of diagnosing the B0090 CHEVROLET 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.

B0090 CHEVROLET Possible Symptoms

  • Air Bag Warning Light ON

B0090 CHEVROLET Meaning

The Inflatable Restraint Vehicle Rollover Sensor (ROS) utilizes battery power supply and a bidirectional interface circuit. The ROS modulates current on the interface to send ID, State of Health, and deployment commands to the Inflatable Restraint Sensing and Diagnostic Module (SDM). When the ignition is turned on the ROS responds by performing internal diagnostics and sending an ID to the SDM. The ROS continually communicates status messages to the SDM, which determines if a fault is present in the ROS circuit. If the fault is present, the SDM will set a Diagnostic Trouble Code (DTC).
OBDII Code B0090 CHEVROLET - Rollover Sensor Erratic - Engine-Codes.com

B0090 CHEVROLET More Information

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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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