Heater Rear Defog Switch
Table of contents
B1013 MERCURY Possible Causes
- Faulty Heater Rear Defog Switch
- Heater Rear Defog Switch harness is open or shorted
- Heater Rear Defog Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B1013 MERCURY?
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
- B1013:11 Heater Rear Defog Switch Circuit Short to Ground
- B1013:23 Heater Rear Defog Switch Signal Stuck Low
Cost of diagnosing the B1013 MERCURY code
The cost of diagnosing the B1013 MERCURY 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)
B1013 MERCURY Description
The Body Control Module (BCM) monitors the Heater Rear Defog Switch. The BCM sets the OBDII code when the Heater Rear Defog Switch is not to factory specifications.