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.
The cost of diagnosing the B2122 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.
The Front Control Module monitors the Ignition Run Control Circuit. The Front Control Module will set this Diagnostic Trouble Code (DTC) within 500ms if the Run Relay Control Circuit voltage is open or shorted to ground.
Need more information on how to fix the B2122 code? Get Access to Factory Service Manuals
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