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C code chassis High severity

C1835 Current Sense Circuit Failure

The OBD2 code C1835 indicates a failure in the current sense circuit, which is responsible for monitoring the electrical current in a specific system, often related to the vehicle's traction control or stability control...

Definition

The OBD2 code C1835 indicates a failure in the current sense circuit, which is responsible for monitoring the electrical current in a specific system, often related to the vehicle's traction control or stability control systems

Common causes

  • Faulty current sensor
  • Wiring issues (shorts or opens)
  • Poor connections or corroded terminals
  • Malfunctioning control module
  • Grounding problems
  • Electrical interference
  • Software issues or calibration errors

Common misdiagnoses

  • Faulty wiring or connectors
  • Defective power window switch
  • Malfunctioning body control module (BCM)
  • Issues with the motor or actuator
  • Battery or charging system problems
  • Incorrectly diagnosed electrical shorts
  • Faulty ground connections
  • Misinterpreted sensor readings

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing any additional codes can provide more context for the issue

  2. 2. Inspect Wiring and Connectors

    Visually inspect the wiring and connectors associated with the current sense circuit. Look for signs of damage, corrosion, loose connections, or frayed wires. Repair or replace any damaged components as necessary

  3. 3. Test the Current Sense Circuit

    Use a multimeter to test the current sense circuit. Check for proper voltage and continuity in the circuit. Compare the readings to the specifications provided in the vehicle's service manual

  4. 4. Check the Power Steering Module (if applicable)

    If the vehicle has electric power steering, inspect the power steering control module. Ensure it is functioning correctly and that there are no issues with its connections

  5. 5. Inspect Ground Connections

    Ensure that all ground connections related to the current sense circuit are clean, tight, and free of corrosion. Poor ground connections can lead to circuit failures

  6. 6. Test the Components

    If the current sense circuit is part of a specific component (like a motor or sensor), test that component for proper operation. Replace any faulty components as needed

  7. 7. Clear the Code and Test Drive

    After performing repairs or adjustments, clear the trouble code using the OBD-II scanner. Take the vehicle for a test drive to see if the code returns

  8. 8. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the specific make and model of the vehicle. Manufacturers may have issued guidance on common issues related to the C1835 code

  9. 9. Seek Professional Help

    If the issue persists after performing the above steps, it may be necessary to consult a professional mechanic or technician who has experience with the specific vehicle and its systems. By following these troubleshooting steps, you can identify and resolve the underlying issue causing the C1835 code