AutoCodes - OBDII Code List - B1491
B1491 - Ignition Cylinder Sensor Circuit Failure
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B1491 Possible Causes
- Faulty Ignition Cylinder Sensor
- Ignition Cylinder Sensor harness is open or shorted
- Ignition Cylinder Sensor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B1491?
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.
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Cost of diagnosing the B1491 code
Labor: 1.0
The cost of diagnosing the B1491 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1491 Description
The Body Control Module (BCM) monitors the Ignition Cylinder Sensor. The BCM sets the OBDII code when the Ignition Cylinder Sensor is not to factory specifications.
More Information
Need more information on how to fix the B1491 code?Get Access to Factory Service Manuals
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