B1966 Lincoln Code - A/C Post Heater Sensor Circuit Failure
Quick Answer
The B1966 diagnostic trouble code for Lincoln vehicles indicates a failure in the A/C post heater sensor circuit. Common causes include Faulty A/C post heater sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or loose connections in the sensor circuit. 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
- B1966 Lincoln indicates A/C Post Heater Sensor Circuit Failure.
- Common causes
- Common causes include Faulty A/C post heater sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or loose connections in the sensor circuit.
- 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 B1966 Lincoln Description
The B1966 diagnostic trouble code for Lincoln vehicles indicates a failure in the A/C post heater sensor circuit. This sensor is responsible for monitoring the temperature of the air after it passes through the heater core in the HVAC system. When this sensor circuit fails, it can lead to inaccurate temperature readings, which may result in improper heating or cooling inside the vehicle. This can significantly impact the comfort of the passengers and the overall functioning of the HVAC system.
Common Causes of B1966 Lincoln
- Faulty A/C post heater sensor.
- Damaged wiring or connectors in the sensor circuit.
- Corrosion or loose connections in the sensor circuit.
- Issues with the HVAC control module.
- Electrical problems within the HVAC system.
Symptoms of B1966 Lincoln
- Inconsistent temperature output from the HVAC system.
- Unusual or erratic behavior of the climate control system.
- A/C or heater not working as expected.
- Malfunction indicator light (MIL) illuminated on the dashboard.
How to Fix B1966 Lincoln
- Diagnose the issue by using a diagnostic scan tool to retrieve the specific trouble code.
- Inspect the A/C post heater sensor and its wiring for any visible damage or corrosion.
- Test the sensor's resistance to determine if it is functioning correctly.
- Replace the faulty sensor or repair any damaged wiring or connections as needed.
- Clear the trouble code from the vehicle's computer and test the HVAC system to ensure proper functionality.
Cost to Fix B1966 Lincoln
The cost of repairing an A/C post heater sensor circuit failure can vary depending on the specific components that need to be replaced or repaired. On average, the parts required for this repair may range from $50 to $150, while the labor costs can range from $100 to $200. Overall, the total repair cost could be between $150 and $350. It's essential to consider additional factors such as diagnostic time and labor rates when estimating the final cost of the repair.
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Frequently Asked Questions about B1966 Lincoln Code
1. What are the common symptoms of OBDII code B1966 in a Lincoln related to the A/C Post Heater Sensor Circuit Failure?
The common symptoms include the air conditioning system not working properly, lack of heat in the cabin, and potential issues with the heater control.
2. What are the possible causes of OBDII code B1966 in a Lincoln indicating A/C Post Heater Sensor Circuit Failure?
Possible causes include a faulty post heater sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning HVAC control module.
3. How can I diagnose OBDII code B1966 in a Lincoln for the A/C Post Heater Sensor Circuit Failure?
Diagnosis involves using a diagnostic scanner to read the code, checking the sensor and its wiring for any visible damage, and testing the sensor's resistance to determine if it is functioning properly.
4. Is it safe to drive my Lincoln with OBDII code B1966 related to the A/C Post Heater Sensor Circuit Failure?
It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid discomfort due to the malfunctioning heating and air conditioning system.
5. Can I repair OBDII code B1966 in a Lincoln indicating A/C Post Heater Sensor Circuit Failure myself?
If you have experience with automotive electrical systems and the necessary tools, you may be able to repair the issue yourself by replacing the faulty sensor or repairing any damaged wiring. Otherwise, it's best to seek professional help.
6. How much does it typically cost to repair OBDII code B1966 in a Lincoln for the A/C Post Heater Sensor Circuit Failure?
The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Are there any preventive measures to avoid OBDII code B1966 in a Lincoln related to the A/C Post Heater Sensor Circuit Failure?
To prevent this code from occurring, it's important to perform regular maintenance on your vehicle's heating and air conditioning system and address any issues promptly to avoid further damage.
8. Can OBDII code B1966 in a Lincoln affect the overall performance of the vehicle?
While this code specifically relates to the A/C Post Heater Sensor Circuit Failure, addressing the issue promptly is important to ensure the overall comfort and functionality of the vehicle's heating and cooling systems.
9. How long does it typically take to repair OBDII code B1966 in a Lincoln for the A/C Post Heater Sensor Circuit Failure?
The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.
10. Can OBDII code B1966 in a Lincoln be reset after the issue is repaired?
Once the underlying cause of the code has been addressed, a diagnostic scanner can be used to reset the code and clear it from the vehicle's system.
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