B2770
PTC Heater Circuit
B2770 is an OBD-II diagnostic trouble code meaning: PTC Heater Circuit. Common causes: ptc heater circuit open, short circuit in the circuit. Estimated repair cost: $56–167.
Symptoms
- No additional interior heating
- Incorrect operation of climate control
- Check Engine Light Illuminates
Causes
- PTC heater circuit open
- Short circuit in the circuit
- PTC heater malfunction
- Wiring Harness Problems
- Control unit malfunction
How to Fix
- Check PTC heater circuit continuity
- Check PTC heater resistance
- Inspect the wiring harness for damage
- Check the operation of the control unit
- Replace PTC heater if necessary
Related codes
FAQ
What does the B2770 code mean?
B2770 is an OBD-II diagnostic trouble code that indicates: PTC Heater Circuit
What causes a B2770 error code?
The most common causes of B2770 include: PTC heater circuit open; Short circuit in the circuit; PTC heater malfunction; Wiring Harness Problems.
How do I fix a B2770 diagnostic trouble code?
To fix B2770: Check PTC heater circuit continuity. Check PTC heater resistance. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2770?
Limited driving only, diagnose soon
How much does it cost to fix B2770?
The estimated repair cost for B2770 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat