The OBD code B393B indicates a fault in the Air Conditioning Compressor circuit within the Heating, Ventilation, and Air Conditioning (HVAC) Control Module.
Symptoms include the Engine Light being ON.
The issue is commonly caused by a faulty compressor or wiring harness issues.
It is important to address promptly to avoid further HVAC system damage.
A possible fix involves inspecting and repairing any damaged components or wiring connections related to the compressor circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the b393b OBD Code
The vehicle displays an airbag warning light on the dashboard.
- Symptoms: Service Engine Soon Warning Light may illuminate.
- Engine may run rough or misfire.
- Vehicle may experience a decrease in fuel efficiency.
Causes of the b393b OBD Code
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Possible triggers for fault code B393B include faulty wiring or a defective sensor.
- B393B can be caused by a faulty Air Conditioning Compressor.
- An open or shorted Air Conditioning Compressor harness.
- Poor electrical connection in the Air Conditioning Compressor circuit.
- A faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module.
Fixing Error Code b393b Step By Step
To address fault code B393B, inspect and repair the driver’s seat belt buckle switch circuit.
- To fix OBDII code B393B, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with the affected system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged wiring or connectors found during the inspection.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to verify if the issue has been resolved.
- If the code returns, further diagnostics may be necessary to pinpoint the exact cause of the problem.
Cost Of Fixing b393b Fault Code
Diagnosing and repairing fault code B393B may involve inspecting and replacing the steering wheel angle sensor.
The cost to diagnose and fix OBD code B393B depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. Actual cost may vary based on shop rates and the complexity of the repair.
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Details of the b393b OBD Code
Fault code B393B relates to a malfunction in the rear wiper motor circuit.
OBD code B393B means Right Rear Turn Signal Lamp Circuit Short to Ground on Chrysler vehicles.
This code is triggered by the Body Control Module (BCM) when it detects a short to ground in the circuit for the right rear turn signal lamp.
The BCM monitors the voltage and current flow in the circuit to detect this fault.
Mechanic’s Tech Notes
Code B393B indicates a fault in the rear view camera system on the vehicle.
OBDII code B393B indicates a fault in the transmission control module (TCM).
To diagnose, check TCM power and ground using a multimeter.
Use a scan tool to confirm TCM communication over the CAN network.
Visually inspect wiring harness and connectors for damage, and check connector pins for issues like corrosion or bending.
Reflashing the TCM software may be necessary.
Ensure all connections are secure and in good condition to resolve the issue.
FAQ
OBD code B393B indicates a fault related to the Air Conditioning Compressor circuit. Check for wiring issues and inspect connectors for damage or corrosion.
Common symptoms of OBD code B393B include Engine Light ON, caused by issues like faulty AC compressor, harness problems, or HVAC control module faults. Inspect and repair affected components.
Diagnose OBD code B393B by checking for a faulty AC compressor, harness issues, or HVAC control module. Inspect wiring and connectors for damage or corrosion.
Wrap Up
If your vehicle is displaying OBDII code b393b, you may experience issues with the fuel tank pressure sensor circuit.
This could be caused by a faulty fuel tank pressure sensor, damaged wiring, or poor electrical connections in the system.
To address OBDII code b393b, start by inspecting the wiring harness and connectors related to the fuel tank pressure sensor.
Check for any signs of damage, corrosion, or loose connections.
Test the sensor itself for proper operation and replace it if necessary to resolve the issue effectively.
