B1949 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 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 Description
What are the Possible Causes of the DTC B1949?
- 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?
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 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.
Need more information about the B1949 code?
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Need Help with the Code?
Get the B1949 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1949 Ford — Climate Control Water Temperature Sensor Circuit Short To Ground
- B1949 Lincoln — Climate Control Water Temperature Sensor Circuit Short To Ground
- B1949 Mercury — Climate Control Water Temperature Sensor Circuit Short To Ground
Frequently Asked Questions about B1949 Code
1. What are common symptoms of OBDII code B1949 related to the Climate Control Water Temperature Sensor Circuit Short To Ground?
- Common symptoms include inaccurate temperature readings on the climate control system, erratic heating or cooling operation, and potential activation of the check engine light.
2. What can cause the Climate Control Water Temperature Sensor Circuit to short to ground and trigger OBDII code B1949?
- Causes may include damaged wiring or connectors, a faulty water temperature sensor, water intrusion into the sensor circuit, or a malfunctioning climate control module.
3. How can I diagnose the Climate Control Water Temperature Sensor Circuit Short To Ground issue?
- Diagnosis typically involves using a multimeter to test the resistance in the sensor circuit, visually inspecting wiring and connectors for damage, and checking for water intrusion in the sensor area.
4. Can I still drive my vehicle with OBDII code B1949 present?
- While the vehicle may still operate, it is recommended to address the issue promptly to prevent further damage to the climate control system and ensure accurate temperature control.
5. What are the repair options for resolving OBDII code B1949?
- Repair options may include repairing or replacing damaged wiring, connectors, or the water temperature sensor, as well as addressing any water intrusion issues in the sensor circuit.
6. Is it possible to reset OBDII code B1949 without fixing the underlying issue?
- Resetting the code without addressing the underlying problem will likely result in the code reappearing once the issue is detected again by the vehicle's system.
7. Can extreme weather conditions impact the Climate Control Water Temperature Sensor Circuit and trigger OBDII code B1949?
- Yes, extreme heat or cold can potentially affect the sensor circuit, leading to malfunctions and triggering the B1949 trouble code.
8. How long does it typically take to repair the Climate Control Water Temperature Sensor Circuit Short To Ground issue?
- The repair time can vary depending on the extent of the damage and the availability of parts, but it is generally a relatively quick fix that can be completed in a few hours.
9. Are there any preventative measures to avoid encountering OBDII code B1949 in the future?
- Regular maintenance checks, keeping the sensor area clean and dry, and promptly addressing any climate control system issues can help prevent the occurrence of this trouble code.
10. Can I fix OBDII code B1949 myself, or do I need to take my vehicle to a professional mechanic?
- While some DIY enthusiasts may be able to address this issue, it is recommended to consult a professional mechanic for an accurate diagnosis and proper repair to ensure the problem is resolved correctly.
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