B1949 Ford Code - Climate Control Water Temperature Sensor Circuit Short To Ground
Quick Answer
The Dual Automatic Temperature Control (DATC) Module monitors the Climate Control Water Temperature Sensor. Common causes include Faulty Climate Control Water Temperature Sensor, Climate Control Water Temperature Sensor harness is open or shorted, Climate Control Water Temperature 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
- B1949 Ford indicates Climate Control Water Temperature Sensor Circuit Short To Ground.
- Common causes
- Common causes include Faulty Climate Control Water Temperature Sensor, Climate Control Water Temperature Sensor harness is open or shorted, Climate Control Water Temperature 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 B1949 Ford Description
What are the Possible Causes of the DTC B1949 Ford?
- Faulty Climate Control Water Temperature Sensor
- Climate Control Water Temperature Sensor harness is open or shorted
- Climate Control Water Temperature Sensor circuit poor electrical connection
- Faulty Dual Automatic Temperature Control (DATC)
How to Fix the DTC B1949 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 B1949 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 B1949 Ford Code
1. What does the OBDII code B1949 mean on a Ford vehicle?
The code B1949 indicates a short to ground in the Climate Control Water Temperature Sensor Circuit, which is part of the vehicle's HVAC system.
2. What are the symptoms of the B1949 code?
Common symptoms include improper climate control operation, inability to regulate cabin temperature, or the HVAC system defaulting to a specific setting.
3. What causes the B1949 code to appear?
It is typically caused by a damaged or shorted sensor, corroded or frayed wiring, or a faulty connector in the water temperature sensor circuit.
4. How do I diagnose the B1949 code?
Start by checking the sensor's wiring for damage or corrosion, then test the water temperature sensor itself and inspect the HVAC control module for faults.
5. Can I drive with the B1949 code active?
Yes, but it may result in uncomfortable cabin temperatures as the climate control system may not function correctly.
6. How do I fix the B1949 code?
Repairs may include replacing the water temperature sensor, repairing or replacing damaged wiring, or cleaning corroded connectors in the sensor circuit.
7. How much does it cost to fix the B1949 code?
The cost varies depending on the issue, but replacing the sensor typically costs $50 to $150, while wiring repairs could cost more depending on the extent of the damage.
8. Can a faulty HVAC control module cause the B1949 code?
Yes, although less common, a malfunctioning HVAC control module can trigger this code if it fails to read the sensor correctly.
9. What tools are needed to troubleshoot the B1949 code?
Basic diagnostic tools like an OBDII scanner, a multimeter for testing voltage and resistance, and wiring diagrams for your vehicle are essential.
10. Will clearing the B1949 code fix the issue?
Clearing the code may temporarily reset the system, but the underlying problem must be resolved to prevent the code from returning.
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