B2428
A/C Post Heater Sensor #2 Circuit Failure
B2428 is an OBD-II diagnostic trouble code meaning: A/C Post Heater Sensor #2 Circuit Failure. Common causes: sensor circuit open, damage to the heater sensor. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of the air conditioning system
- Disabling the air conditioner heater
- Unstable air temperature in the cabin
Causes
- Sensor circuit open
- Damage to the heater sensor
- Problems in the wiring harness
- Short circuit
- Malfunction of the climate control unit
How to Fix
- Check the integrity of the sensor circuit
- Inspect the sensor for damage
- Check sensor connection
- Replace sensor if necessary
- Check wiring harness for damage
Related codes
FAQ
What does the B2428 code mean?
B2428 is an OBD-II diagnostic trouble code that indicates: A/C Post Heater Sensor #2 Circuit Failure
What causes a B2428 error code?
The most common causes of B2428 include: Sensor circuit open; Damage to the heater sensor; Problems in the wiring harness; Short circuit.
How do I fix a B2428 diagnostic trouble code?
To fix B2428: Check the integrity of the sensor circuit. Inspect the sensor for damage. Check sensor connection. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2428?
Limited driving only, diagnose soon
How much does it cost to fix B2428?
The estimated repair cost for B2428 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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