B1231 Acura Code - Open In The Evaporator Temperature Sensor Circuit
Quick Answer
The Climate Control Unit monitors the Evaporator Temperature Sensor. Common causes include Faulty Evaporator Temperature Sensor, Evaporator Temperature Sensor harness is open or shorted, Evaporator Temperature Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B1231 Acura indicates Open In The Evaporator Temperature Sensor Circuit.
- Common causes
- Common causes include Faulty Evaporator Temperature Sensor, Evaporator Temperature Sensor harness is open or shorted, Evaporator Temperature Sensor circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B1231 Acura Description
What are the Possible Causes of the DTC B1231 Acura?
- Faulty Evaporator Temperature Sensor
- Evaporator Temperature Sensor harness is open or shorted
- Evaporator Temperature Sensor circuit poor electrical connection
- Faulty Climate Control Unit
How to Fix the DTC B1231 Acura?
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 B1231 Acura 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 B1231 Acura Code
1. What are the common symptoms of OBDII code B1231 Acura?
- Common symptoms include issues with the air conditioning system, such as erratic temperature readings or failure to adjust the interior temperature properly.
2. What does the OBDII code B1231 Acura indicate?
- The code B1231 indicates an open circuit in the evaporator temperature sensor circuit of the Acura vehicle.
3. What are the possible causes of an open circuit in the evaporator temperature sensor circuit?
- Possible causes include a faulty evaporator temperature sensor, damaged wiring or connectors, or a blown fuse related to the sensor circuit.
4. How can I diagnose the open circuit in the evaporator temperature sensor circuit?
- A diagnostic scan tool can help identify the specific location of the open circuit. Checking the sensor's wiring and connectors for damage or corrosion is also recommended.
5. Can I still drive my Acura with OBDII code B1231 present?
- It is generally safe to drive the vehicle with this code, but it is advisable to address the issue promptly to prevent potential problems with the air conditioning system.
6. How can I repair the open circuit in the evaporator temperature sensor circuit?
- Repairing the issue may involve replacing the faulty evaporator temperature sensor, repairing damaged wiring or connectors, and ensuring proper connection and insulation.
7. Will resetting the OBDII code B1231 clear the issue?
- Resetting the code may temporarily clear the warning, but if the underlying problem is not fixed, the code is likely to reappear.
8. Are there any DIY tips for troubleshooting OBDII code B1231 in my Acura?
- DIY troubleshooting tips include visually inspecting the sensor's wiring and connectors, checking for loose connections, and ensuring proper insulation.
9. How much does it typically cost to repair OBDII code B1231 in an Acura?
- The cost of repairs can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, and labor costs, ranging from $100 to $300 or more.
10. Can OBDII code B1231 cause any long-term damage to my Acura?
- While the code itself may not cause immediate harm, ignoring the issue could lead to further problems with the air conditioning system, affecting comfort and potentially causing more costly repairs in the future.
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