B1947 Ford Code - Climate Control A/C Post Evaporator Sensor Circuit Short To Ground
Quick Answer
The B1947 Ford diagnostic trouble code indicates an issue with the Climate Control A/C Post Evaporator Sensor Circuit Short To Ground. Common causes include Damaged wiring or connectors in the A/C post evaporator sensor circuit, Faulty A/C post evaporator sensor, Malfunctioning climate control module. 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 Damaged wiring or connectors in the A/C post evaporator sensor circuit, Faulty A/C post evaporator sensor, Malfunctioning climate control module.
- 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.
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Code B1947 Ford Description
The B1947 Ford diagnostic trouble code indicates an issue with the Climate Control A/C Post Evaporator Sensor Circuit Short To Ground. In simpler terms, this means that there is a short circuit between the A/C post evaporator sensor and the ground in the vehicle's climate control system. This sensor is responsible for monitoring the temperature of the air after it passes through the evaporator in the A/C system.
Common Causes of B1947 Ford
- Damaged wiring or connectors in the A/C post evaporator sensor circuit.
- Faulty A/C post evaporator sensor.
- Malfunctioning climate control module.
- Corrosion or debris affecting the sensor's connection to the ground.
Symptoms of B1947 Ford
- Inadequate cooling or heating from the A/C system.
- Erratic temperature readings on the climate control display.
- A/C system may turn on or off unexpectedly.
- Malfunctioning climate control buttons or controls.
- Illumination of the check engine light on the dashboard.
How to Fix B1947 Ford
- Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific trouble code.
- Inspect the wiring and connectors in the A/C post evaporator sensor circuit for any damage or corrosion.
- Test the A/C post evaporator sensor for proper functionality.
- Check the climate control module for any faults or malfunctions.
- Repair or replace any damaged components, clear the trouble code, and test the system to ensure the issue is resolved.
Cost to Fix B1947 Ford
The cost of repairing a Climate Control A/C Post Evaporator Sensor Circuit Short To Ground issue can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. On average, the repair cost for this issue can range from $150 to $400, including parts and labor. However, it's important to note that labor rates and diagnostic fees can vary between auto repair shops, so it's recommended to get a personalized estimate based on your location and vehicle model. Keep in mind that addressing this issue promptly can help prevent further damage and more expensive repairs in the future.
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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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