B1238 Code - Problem In The Passenger Side Air Mix Control Linkage, Door, Or Motor Circuit
Quick Answer
The Climate Control Unit monitors the Passenger Side Air Mix Control Motor. Common causes include Faulty Passenger Side Air Mix Control Motor, Passenger Side Air Mix Control Motor harness is open or shorted, Passenger Side 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
- B1238 indicates Problem In The Passenger Side Air Mix Control Linkage, Door, Or Motor Circuit.
- Common causes
- Common causes include Faulty Passenger Side Air Mix Control Motor, Passenger Side Air Mix Control Motor harness is open or shorted, Passenger Side 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.
Code B1238 Description
What are the Possible Causes of the DTC B1238?
- Faulty Passenger Side Air Mix Control Motor
- Passenger Side Air Mix Control Motor harness is open or shorted
- Passenger Side Air Mix Control Motor circuit poor electrical connection
- Faulty Climate Control Unit
How to Fix the DTC B1238?
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 B1238 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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Information for Specific Makes
- B1238 Acura — Problem In The Passenger Side Air Mix Control Linkage, Door, Or Motor Circuit
- B1238 Chrysler — PTS Sensor 9 Ring Time Too Short
- B1238 Dodge — PTS Sensor 9 Ring Time Too Short
- B1238 Honda — Problem In The Passenger Side Air Mix Control Linkage, Door, Or Motor Circuit
- B1238 Jeep — PTS Sensor 9 Ring Time Too Short
- B1238 RAM — PTS Sensor 9 Ring Time Too Short
Frequently Asked Questions about B1238 Code
1. What are the common symptoms of OBDII code B1238?
- Common symptoms include inconsistent air temperature from the passenger side vents, inability to adjust temperature settings, and potential issues with the passenger side air conditioning system.
2. What causes the OBDII code B1238 to trigger?
- The code B1238 is typically triggered by a malfunction in the passenger side air mix control linkage, door, or motor circuit, which can be caused by a faulty blend door actuator or wiring issues.
3. How can I diagnose the problem related to the passenger side air mix control linkage or motor circuit?
- To diagnose the problem, you can perform a visual inspection of the blend door actuator, check the wiring connections, and use a scan tool to read the specific diagnostic trouble code (DTC) B1238.
4. Can I repair the problem with the passenger side air mix control linkage or motor circuit myself?
- Depending on your level of automotive repair experience, you may be able to replace the blend door actuator or repair wiring issues yourself. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.
5. Are there any temporary fixes for OBDII code B1238?
- In some cases, temporarily adjusting the temperature settings on the driver side may help balance the air temperature until the underlying issue with the passenger side air mix control linkage or motor circuit is resolved.
6. Is it safe to continue driving with OBDII code B1238 present?
- While the vehicle may still be operable with the code present, it is recommended to address the issue promptly to prevent further damage to the air conditioning system and ensure optimal comfort for passengers.
7. How much does it typically cost to repair OBDII code B1238?
- The cost of repairing OBDII code B1238 can vary depending on the underlying cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed, such as a new blend door actuator.
8. Can a faulty cabin air filter cause OBDII code B1238 to trigger?
- A faulty cabin air filter is not directly related to OBDII code B1238, which specifically pertains to a problem in the passenger side air mix control linkage, door, or motor circuit. However, a dirty cabin air filter can impact overall HVAC system performance.
9. Will resetting the vehicle's computer system clear OBDII code B1238?
- While resetting the vehicle's computer system may temporarily clear the code, it is not a permanent solution unless the underlying issue with the passenger side air mix control linkage or motor circuit is addressed.
10. How can I prevent OBDII code B1238 from recurring in the future?
- To prevent OBDII code B1238 from recurring, it is essential to address any underlying issues promptly, perform regular maintenance on the HVAC system, and ensure proper functioning of the blend door actuator and related components.
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