B2466
Auxiliary Heater Overheat Counter Overrun/System Locked
B2466 is an OBD-II diagnostic trouble code meaning: Auxiliary Heater Overheat Counter Overrun/System Locked. Common causes: heating element malfunction, problems with wiring or wiring harness. Estimated repair cost: $56–167.
Symptoms
- Auxiliary heater does not work
- Error message on the dashboard
- Overheating in the heater area
Causes
- Heating element malfunction
- Problems with wiring or wiring harness
- Malfunctions in the heater control module
- Clogged ducts or fan
How to Fix
- Check wiring harness and connections
- Diagnose the heater control module
- Check the heating element for burnout
- Clean the air ducts and check the fan
Related codes
FAQ
What does the B2466 code mean?
B2466 is an OBD-II diagnostic trouble code that indicates: Auxiliary Heater Overheat Counter Overrun/System Locked
What causes a B2466 error code?
The most common causes of B2466 include: Heating element malfunction; Problems with wiring or wiring harness; Malfunctions in the heater control module; Clogged ducts or fan.
How do I fix a B2466 diagnostic trouble code?
To fix B2466: Check wiring harness and connections. Diagnose the heater control module. Check the heating element for burnout. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2466?
Limited driving only, diagnose soon
How much does it cost to fix B2466?
The estimated repair cost for B2466 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat