OBD code B3935 indicates a fault with the Body Control Module (BCM) related to the key/transmitter in the vehicle.
Symptoms include the Engine Light being ON.
The issue is commonly caused by a faulty key/transmitter or a faulty BCM.
It is essential to visually inspect wiring harnesses, connectors, and components for damage.
This problem should be addressed promptly to avoid potential electrical issues.
| 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 b3935 OBD Code
The vehicle displays an airbag warning light on the dashboard.
- Symptoms: Service Airbag Warning Light ON.
- Airbag system may not deploy in a crash.
- Vehicle may have a stored crash event in the airbag module.
Causes of the b3935 OBD Code
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Possible triggers for fault code B3935 include issues with the keyless entry system or faulty key fob.
- B3935 can be caused by a faulty key/transmitter.
- A faulty body control module (BCM).
Fixing Error Code b3935 Step By Step
To address fault code B3935, inspect and repair the steering wheel position sensor circuit.
- To fix OBDII code B3935, first, review the possible causes related to this code.
- Visually inspect the wiring harness and connectors associated with the code.
- 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 using a scan tool.
- Test drive the vehicle to verify if the code returns.
- If the code persists, further diagnostics may be necessary to pinpoint the exact cause of the issue.
Cost Of Fixing b3935 Fault Code
Diagnosing and repairing fault code B3935 may involve inspecting and potentially replacing the steering wheel position sensor.
The cost to diagnose and fix OBD code B3935 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the general cost could be between $75 and $150. Factors like shop rates and complexity of the repair can influence the final cost.
Details of the b3935 OBD Code
B3935 code indicates a rear power window switch circuit malfunction.
OBD code B3935 indicates a fault with the rear wiper park switch circuit.
This code is triggered by the Body Control Module (BCM) when it detects an issue with the rear wiper park switch circuit.
The BCM monitors the signal from the rear wiper park switch to determine the position of the rear wiper and control its operation accordingly.
If the BCM detects a fault in this circuit, it will set code B3935 to indicate the problem.
Mechanic’s Tech Notes
Code B3935 indicates a fault with the keyless entry system on the vehicle.
To diagnose and fix OBDII code B3935, 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 communication issues are detected, reprogramming or reflashing the TCM may be necessary.
Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection can help identify and resolve the root cause of the B3935 fault code.
FAQ
OBD code B3935 indicates a fault with the key/transmitter or body control module. Check wiring, connectors, and components for damage or corrosion.
Common symptoms for OBD code B3935 include Engine Light ON, caused by faulty Key/Transmitter or Body Control Module. Fix: Inspect wiring, connectors, and components for damage.
Diagnose OBD code B3935 by checking for a faulty key/transmitter or BCM. Inspect wiring harness, connectors, and pins for damage. Repair as needed.
Wrap Up
If your vehicle is displaying OBD code b3935, you may experience issues with the rear door ajar indicator not functioning properly.
This could be caused by a faulty rear door ajar switch, wiring problems in the rear door harness, or a malfunction in the body control module.
To address OBD code b3935, start by inspecting the rear door ajar switch for proper operation and wiring connections for any signs of damage or corrosion.
Test the switch for continuity and ensure the body control module is functioning correctly.
Replace any faulty components or repair damaged wiring as needed.
