B1947 Ford Code - Climate Control A/C Post Evaporator Sensor Circuit Short To Ground
Quick Answer
The Dual Automatic Temperature Control (DATC) Module monitors the Climate Control A/C Post Evaporator Sensor. Common causes include Faulty Climate Control A/C Post Evaporator Sensor, Climate Control A/C Post Evaporator Sensor harness is open or shorted, Climate Control A/C Post Evaporator Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1947 Ford indicates Climate Control A/C Post Evaporator Sensor Circuit Short To Ground.
- Common causes
- Common causes include Faulty Climate Control A/C Post Evaporator Sensor, Climate Control A/C Post Evaporator Sensor harness is open or shorted, Climate Control A/C Post Evaporator Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1947 Ford Description
What are the Possible Causes of the DTC B1947 Ford?
- Faulty Climate Control A/C Post Evaporator Sensor
- Climate Control A/C Post Evaporator Sensor harness is open or shorted
- Climate Control A/C Post Evaporator Sensor circuit poor electrical connection
- Faulty Dual Automatic Temperature Control (DATC)
How to Fix the DTC B1947 Ford?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1947 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1947 Ford Code
1. What does the OBDII code B1947 mean in a Ford vehicle?
B1947 indicates a short to ground in the Climate Control A/C Post Evaporator Sensor Circuit, which monitors the air temperature after the evaporator.
2. What are the common symptoms of the B1947 code?
Symptoms may include poor A/C performance, inconsistent cabin temperatures, or the climate control system not functioning properly.
3. What causes the B1947 code to appear?
The most common causes are damaged wiring, a faulty post evaporator temperature sensor, or a short circuit to ground in the sensor's circuit.
4. How do I diagnose the B1947 code?
Inspect the wiring and connectors for damage or corrosion, test the sensor for proper resistance, and check for continuity in the circuit to identify a short to ground.
5. Can I still drive my car with the B1947 code?
Yes, but the A/C system may not work correctly, leading to discomfort or ineffective climate control in the cabin.
6. How do I fix the B1947 code?
Repairs typically involve replacing the faulty post evaporator sensor, repairing or replacing damaged wiring, or addressing any grounding issues in the circuit.
7. How much does it cost to repair the B1947 code?
Costs vary but generally range from $100 to $300 depending on whether the sensor needs replacement and the extent of wiring repairs.
8. Will clearing the B1947 code fix the issue?
No, clearing the code without addressing the underlying problem will only temporarily remove the warning, and the code will likely return.
9. Can a faulty A/C control module cause the B1947 code?
While rare, a malfunctioning A/C control module could contribute to this issue if it fails to properly interpret sensor data or provides incorrect outputs.
10. Is the B1947 code specific to Ford vehicles?
Yes, while other manufacturers may have similar codes, B1947 is specific to Ford’s climate control system diagnostics.
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