OBD Codes

C0200

ABS Motor Relay Circuit Open

Severeelectrical

About C0200

The C0200 code indicates that the chassis control module has detected a abs motor relay circuit open condition. This relates to the vehicle's chassis systems including ABS, stability control, steering, and suspension. A fault in these systems can affect vehicle safety and handling, and should be diagnosed and repaired promptly. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Vehicle not starting or cranking slowly. Battery draining overnight. Erratic gauge readings. Vehicle going into limp mode or reduced power. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Faulty engine control module (ECM/PCM). Corroded or damaged wiring connectors. Low battery voltage or failing battery. Failed relay or fuse. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Connect an OBD-II scanner and read all stored trouble codes and freeze frame data. Check battery voltage and charging system output with a multimeter. Inspect wiring and connectors related to the trouble code. Test circuit voltage, ground, and resistance with a multimeter. Check related fuses and relays. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Chassis (C) collection on OBD Codes. We provide comprehensive, up-to-date information to help you find solutions quickly.

Quick Answer

Are electrical codes hard to diagnose?

Electrical codes can be challenging because they often involve intermittent issues. A thorough inspection of wiring, connectors, and grounds with a multimeter is essential for accurate diagnosis.

Overview

The C0200 code indicates that the chassis control module has detected a abs motor relay circuit open condition. This relates to the vehicle's chassis systems including ABS, stability control, steering, and suspension. A fault in these systems can affect vehicle safety and handling, and should be diagnosed and repaired promptly.

Symptoms

  • Vehicle not starting or cranking slowly
  • Battery draining overnight
  • Erratic gauge readings
  • Vehicle going into limp mode or reduced power

Common Causes

  • Faulty engine control module (ECM/PCM)
  • Corroded or damaged wiring connectors
  • Low battery voltage or failing battery
  • Failed relay or fuse

Diagnosis Steps

  1. 1Connect an OBD-II scanner and read all stored trouble codes and freeze frame data
  2. 2Check battery voltage and charging system output with a multimeter
  3. 3Inspect wiring and connectors related to the trouble code
  4. 4Test circuit voltage, ground, and resistance with a multimeter
  5. 5Check related fuses and relays

Estimated Repair Cost

$75$400

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Ford F-150Mercedes-Benz C-ClassFord RangerChevrolet Silverado

Related Codes

More Electrical Codes

Frequently Asked Questions

Electrical codes can be challenging because they often involve intermittent issues. A thorough inspection of wiring, connectors, and grounds with a multimeter is essential for accurate diagnosis.