B1947
Climate Control A/C Post Evaporator Sensor Circuit Short To Ground
B1947 is an OBD-II diagnostic trouble code meaning: Climate Control A/C Post Evaporator Sensor Circuit Short To Ground. Common causes: short circuit to ground in the sensor wiring harness, malfunction of the temperature sensor after the evaporator. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of the air conditioner (air is too cold or not cooled enough)
- No cold air when the air conditioner is on
- Climate control indicator blinking
Causes
- Short circuit to ground in the sensor wiring harness
- Malfunction of the temperature sensor after the evaporator
- Damage or corrosion of the sensor connector
- Problems with the climate control unit
How to Fix
- Check the integrity of the wiring harness to the sensor
- Check the resistance of the temperature sensor
- Clean or replace the sensor connector if necessary
- Replace the temperature sensor after the evaporator if it is faulty
Related codes
FAQ
What does the B1947 code mean?
B1947 is an OBD-II diagnostic trouble code that indicates: Climate Control A/C Post Evaporator Sensor Circuit Short To Ground
What causes a B1947 error code?
The most common causes of B1947 include: Short circuit to ground in the sensor wiring harness; Malfunction of the temperature sensor after the evaporator; Damage or corrosion of the sensor connector; Problems with the climate control unit.
How do I fix a B1947 diagnostic trouble code?
To fix B1947: Check the integrity of the wiring harness to the sensor. Check the resistance of the temperature sensor. Clean or replace the sensor connector if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1947?
Limited driving only, diagnose soon
How much does it cost to fix B1947?
The estimated repair cost for B1947 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat