AutoCodes – Generic – B1245

B1245 Code - Short In The Rear Air Mix Control Motor Circuit

Quick Answer

The Climate Control Unit monitors the Rear Air Mix Control Motor. Common causes include Faulty Rear Air Mix Control Motor, Rear Air Mix Control Motor harness is open or shorted, Rear Air Mix Control Motor 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: B1245 indicates Short In The Rear Air Mix Control Motor Circuit.
Common causes: Common causes include Faulty Rear Air Mix Control Motor, Rear Air Mix Control Motor harness is open or shorted, Rear Air Mix Control Motor 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.

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Code Popularity 29,466

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1245 Description

The Climate Control Unit monitors the Rear Air Mix Control Motor. The Climate Control Unit sets the OBDII code when the Rear Air Mix Control Motor is not to factory specifications.

OBDII Code B1245 - Short In The Rear Air Mix Control Motor Circuit - AutoCodes.com — B1245 Code - Short In The Rear Air Mix Control Motor Circuit

What does this mean?

What are the Possible Causes of the DTC B1245?

Faulty Rear Air Mix Control Motor
Rear Air Mix Control Motor harness is open or shorted
Rear Air Mix Control Motor circuit poor electrical connection
Faulty Climate Control Unit

How to Fix the DTC B1245?

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 B1245 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 B1245 code?

Need more information on how to fix the B1245 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1245 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1245 Acura — Short In The Rear Air Mix Control Motor Circuit
B1245 Honda — Short In The Rear Air Mix Control Motor Circuit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1245 Code

1. What are common symptoms of OBDII code B1245 (Short In The Rear Air Mix Control Motor Circuit)?

- Common symptoms include issues with the rear air conditioning system, such as inconsistent temperature control or no air coming out of the rear vents.

2. What can cause OBDII code B1245 to trigger?

- This code is typically triggered by a short circuit in the wiring of the rear air mix control motor or a malfunction within the motor itself.

3. How can I diagnose the cause of OBDII code B1245?

- To diagnose this code, you can use a multimeter to test the resistance of the wiring and the rear air mix control motor. Inspect the wiring for any visible damage or signs of a short circuit.

4. What are the repair options for OBDII code B1245?

- Repair options include repairing or replacing any damaged wiring, fixing the short circuit in the circuit, or replacing the rear air mix control motor if it is faulty.

5. Can I drive my vehicle with OBDII code B1245?

- It is not recommended to drive your vehicle with this code as it may lead to further issues with the rear air conditioning system. It is best to address the problem promptly.

6. How difficult is it to fix OBDII code B1245?

- The difficulty of fixing this code can vary depending on your experience with automotive repairs. If you are comfortable working with electrical systems, you may be able to fix it yourself. Otherwise, it's best to seek professional help.

7. Are there any preventative measures to avoid OBDII code B1245 in the future?

- Regularly inspecting the wiring of the rear air mix control motor and ensuring it is in good condition can help prevent this code from occurring.

8. Will resetting the OBDII code B1245 make it go away permanently?

- Resetting the code will clear it temporarily, but if the underlying issue causing the code is not fixed, it is likely to return.

9. How much does it typically cost to repair OBDII code B1245?

- The cost of repairing this code can vary depending on the extent of the damage and whether you do the repairs yourself or take it to a professional mechanic. Costs may include parts and labor.

10. Can OBDII code B1245 cause any other problems in my vehicle?

- While this code specifically relates to the rear air mix control motor circuit, unresolved issues with the electrical system can potentially lead to other problems in the vehicle over time.