The OBD code B1235 for Honda indicates a fault with the Driver Side Air Mix Control Motor.
Symptoms include the Engine Light being ON.
This issue can be caused by a faulty motor, wiring harness issues, or a problem with the Climate Control Unit.
It is important to address this problem promptly to ensure proper climate control functionality.
To fix it, inspect the motor, wiring harness, and connectors for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Honda b1235 OBD Code
The Honda B1235 fault code indicates an issue with the airbag system’s right front impact sensor.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible loss of communication with the immobilizer control unit.
- Difficulty starting the vehicle.
- Engine stalling while driving.
- Difficulty shifting gears.
Causes of the Honda b1235 OBD Code
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Possible triggers for Honda B1235 include faulty airbag control module or wiring issues.
- B1235 can be caused by a faulty Driver Side Air Mix Control Motor.
- A Driver Side Air Mix Control Motor harness that is open or shorted.
- A Driver Side Air Mix Control Motor circuit with poor electrical connection.
- A faulty Climate Control Unit.
Fixing Honda Error Code b1235 Step By Step
To address Honda fault code B1235, inspect and replace the passenger’s airbag inflator unit as needed.
- To fix Honda OBDII code B1235, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the airbag system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, perform a thorough diagnostic of the airbag system using a scan tool to pinpoint the exact cause of the fault.
- Repair or replace any faulty components identified during the diagnostic process.
- Clear the fault code from the vehicle’s computer using the scan tool.
- Test drive the vehicle to ensure the code does not return, indicating a successful repair.
Cost Of Fixing Honda b1235 Fault Code
Diagnosing and repairing Honda fault code B1235 may involve replacing the passenger’s airbag inflator.
The cost to diagnose and fix Honda OBD code B1235 typically ranges from $75 to $150, based on an estimated repair time of 1. 0 hour.
Factors like shop rates and complexity of the issue can influence the final cost.
Details of the Honda b1235 OBD Code
The Honda B1235 code indicates a faulty air temperature sensor circuit.
Code B1235 for Honda vehicles indicates a problem with the climate control temperature sensor circuit.
This code is triggered by the HVAC control module when it detects an issue with the temperature sensor circuit.
The climate control temperature sensor is responsible for providing accurate temperature readings to the HVAC control module, allowing it to regulate the interior temperature of the vehicle effectively.
When the sensor or its circuit malfunctions, it can lead to incorrect temperature readings and affect the performance of the climate control system.
Mechanic’s Tech Notes
For Honda B1235, refer to detailed diagnostic information for accurate troubleshooting and repair guidance.
To diagnose and fix OBDII code Honda B1235, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.
Ensure all connections are secure.
If the issue persists, consider consulting a professional for further diagnostics or TCM replacement.
FAQ
OBD code B1235 in a Honda indicates an issue with the Driver Side Air Mix Control Motor. Check wiring, connectors, and components for faults to resolve.
Code B1235 in a Honda may cause the Engine Light to come on. Common symptoms include issues with the Driver Side Air Mix Control Motor. Check wiring and connectors for faults.
Diagnose and repair OBD code B1235 in a Honda: Symptoms Engine Light ON. Causes Faulty Driver Side Air Mix Control Motor. Fix Inspect wiring harness and connectors for damage.
Wrap Up
If your Honda is displaying OBD code b1235 along with ABS or traction control warning lights, it may indicate a fault in the right front wheel speed sensor circuit.
This could be caused by a damaged wheel speed sensor, faulty wiring, or poor connections at the sensor or ABS module.
To address Honda OBD code b1235, start by inspecting the wiring harness and connectors leading to the right front wheel speed sensor.
Look for any signs of damage, corrosion, or loose connections.
Test the sensor itself for proper operation and replace if necessary to resolve the issue.
