Ignition Unlock Run/Start Control Circuit Low
Table of contents
B2104 JEEP Possible Causes
- Faulty Shifter Lever Assembly
- Shifter Lever Assembly harness is open or shorted
- Shifter Lever Assembly circuit poor electrical connection
- Faulty Front Control Module (FCM)
How do I fix code B2104 JEEP?
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.
Cost of diagnosing the B2104 JEEP code
The cost of diagnosing the B2104 JEEP 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
- Engine Light ON (or Service Engine Soon Warning Light)
B2104 JEEP Description
The Front Control Module monitors the Ignition Unlock Run/Start Control Circuit. The Front Control Module will set this Diagnostic Trouble Code (DTC) within 500ms if the ignition unlock run/start circuit voltage is less than the expected value.