B1948
Climate Control Water Temperature Sensor Circuit Failure
B1948 is an OBD-II diagnostic trouble code meaning: Climate Control Water Temperature Sensor Circuit Failure. Common causes: open or short circuit in the sensor circuit, water temperature sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of climate control
- Lack of interior heating
- Unstable air temperature from deflectors
- Check Engine light comes on
Causes
- Open or short circuit in the sensor circuit
- Water temperature sensor malfunction
- Wiring harness damage
- Connector problems or contact corrosion
- Malfunction of the climate control control unit
How to Fix
- Check the continuity of the water temperature sensor circuit
- Check sensor resistance (compare with nominal values)
- Inspect the wiring harness and connectors for damage.
- Replace the water temperature sensor if necessary
- Check the operation of the climate control control unit
Related codes
FAQ
What does the B1948 code mean?
B1948 is an OBD-II diagnostic trouble code that indicates: Climate Control Water Temperature Sensor Circuit Failure
What causes a B1948 error code?
The most common causes of B1948 include: Open or short circuit in the sensor circuit; Water temperature sensor malfunction; Wiring harness damage; Connector problems or contact corrosion.
How do I fix a B1948 diagnostic trouble code?
To fix B1948: Check the continuity of the water temperature sensor circuit. Check sensor resistance (compare with nominal values). Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1948?
Limited driving only, diagnose soon
How much does it cost to fix B1948?
The estimated repair cost for B1948 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat