B048D
Auxiliary Heater Temperature Command Circuit
B048D is an OBD-II diagnostic trouble code meaning: Auxiliary Heater Temperature Command Circuit. Common causes: break in the wiring harness, short circuit in control circuit. Estimated repair cost: $56–167.
Symptoms
- Reduced heater efficiency
- Inability to regulate cabin temperature
- Hot air is not supplied
Causes
- Break in the wiring harness
- Short circuit in control circuit
- Temperature sensor malfunction
- Problems with the heater control unit
How to Fix
- Check the integrity of the wiring harness
- Diagnose temperature sensor
- Check the heater control unit
- Replace damaged components
Related codes
Error B048D by Vehicle Brand
FAQ
What does the B048D code mean?
B048D is an OBD-II diagnostic trouble code that indicates: Auxiliary Heater Temperature Command Circuit
What causes a B048D error code?
The most common causes of B048D include: Break in the wiring harness; Short circuit in control circuit; Temperature sensor malfunction; Problems with the heater control unit.
How do I fix a B048D diagnostic trouble code?
To fix B048D: Check the integrity of the wiring harness. Diagnose temperature sensor. Check the heater control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B048D?
Limited driving only, diagnose soon
How much does it cost to fix B048D?
The estimated repair cost for B048D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat