b1237 short in the passenger side air mix control motor circuit
B1237 Short in the Passenger Side Air Mix Control Motor Circuit
OBD2 Code: B1237
Description: Short in the passenger side air mix control motor circuit.
Definition: This code indicates a short circuit condition has been detected in the wiring or components related to the passenger side air mix control motor. The air mix control motor is responsible for adjusting the blend of hot and cold air entering the cabin on the passenger side, and a short can prevent proper temperature regulation.
B1237 – Short in the passenger side air mix control motor circuit
Typical severity: Moderate
Common Causes
B1237 – Short in the passenger side air mix control motor circuit
Common causes:
- Faulty passenger side air mix control motor
- Short circuit in the wiring harness
- Loose or corroded electrical connections related to the air mix control system
Common Misdiagnosis
OBD2 Code: B1237
Description: Short in the passenger side air mix control motor circuit
Common Misdiagnosis: Replacing the air mix control motor without checking for wiring issues or connector problems.
Common Diagnostic Steps
OBD2 Code: B1237
Description: Short in the Passenger Side Air Mix Control Motor Circuit
Common Diagnostic Steps:
- Verify the code using an OBD2 scanner to ensure it is active.
- Inspect the wiring and connectors related to the passenger side air mix control motor for any signs of damage, corrosion, or disconnection.
- Check for any blown fuses that may be associated with the air mix control motor circuit.
- Test the passenger side air mix control motor by applying direct power to see if it operates correctly.
- Use a multimeter to check for continuity and short circuits in the wiring harness connected to the air mix control motor.
- If applicable, inspect and test any related sensors or modules that interact with the air mix control system.
- If no issues are found with wiring or components, consider replacing the passenger side air mix control motor itself as a last resort.