Front Left Heater Control Circuit
Table of contents
B1E99 JEEP Possible Causes
- Faulty Front Left Seat Back Heater Element
- Front Left Seat Back Heater Element harness is open or shorted
- Front Left Seat Back Heater Element circuit poor electrical connection
- Faulty Comfort Seat Wheel Module (CSWM)
How do I fix code B1E99 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.
Tech Notes
- B1E99-1E FRONT LEFT HEATER CONTROL CIRCUIT RESISTANCE OUT OF RANGE
- B1E99-11 FRONT LEFT HEATER CONTROL CIRCUIT SHORT TO GROUND
- B1E99-12 FRONT LEFT HEATER CONTROL CIRCUIT SHORT TO BATTERY
- B1E99-13 FRONT LEFT HEATER CONTROL CIRCUIT OPEN
Cost of diagnosing the B1E99 JEEP code
The cost of diagnosing the B1E99 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)
B1E99 JEEP Description
The Comfort Seat Wheel Module (CSWM) monitors the Front Left Heater Control Circuit. The CSWM sets the OBDII code when the CSWM detects on the Left Front Seat Heater Control circuit an impedance equal to or above 7.0 Ohms for more than two seconds, a voltage below 1.0 volt or a current above 10.0 amps for more than two seconds with the output turned on, a voltage above 5.0 volts for more than two seconds with the output turned off or a current below 0.5 of an amp for more than two seconds with the output turned on.