C1104 Traction Control Active Lamp – Circuit Short to Battery

How to Diagnose and Solve C1104 Traction Control Active Lamp – Circuit Short to Battery Issues


Are you a car enthusiast who loves to solve car problems on your own? Or perhaps you’re just a regular car owner who wants to save some bucks on mechanic fees? Either way, you’re in the right place. Today, we’re going to tackle a common car issue: the C1104 Traction Control Active Lamp – Circuit Short to Battery.

Understanding the C1104 Code

Before we dive into the solution, let’s first understand what the C1104 code means. This code is triggered when the Engine Control Module (ECM) detects a short to battery in the Traction Control Active Lamp circuit. This could lead to several issues, including reduced fuel efficiency, poor acceleration, and even potential damage to the vehicle’s electrical system.

What Causes the C1104 Code?

The C1104 code can be caused by various factors, including a faulty traction control switch, damaged wiring, or a malfunctioning ECM. It’s crucial to identify the root cause to effectively solve the problem.

Diagnosing the C1104 Code

Now that we’ve understood the issue, let’s move on to diagnosing it. Here’s a step-by-step guide:

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Step 1: Check the Traction Control Switch

The first thing you should do is check the traction control switch. If it’s faulty, it could be sending incorrect signals to the ECM, triggering the C1104 code.

Step 2: Inspect the Wiring

Next, inspect the wiring connected to the traction control system. Look for any signs of damage, such as fraying or corrosion. Damaged wiring can cause a short to battery, leading to the C1104 code.

Step 3: Test the ECM

Finally, test the ECM. If it’s malfunctioning, it could be incorrectly detecting a short to battery, even if there isn’t one.

Solving the C1104 Code

After diagnosing the problem, it’s time to solve it. Here’s how:

Step 1: Replace the Traction Control Switch

If the traction control switch is faulty, replace it. This should solve the problem if the switch was the root cause.

Step 2: Repair or Replace Damaged Wiring

If you found damaged wiring during your inspection, repair or replace it. This should eliminate any shorts to battery.

Step 3: Replace the ECM

If the ECM is malfunctioning, it may need to be replaced. However, this should be your last resort, as ECMs are typically expensive.


Dealing with the C1104 Traction Control Active Lamp – Circuit Short to Battery issue can be a bit challenging, but with the right knowledge and a bit of patience, you can solve it on your own. Remember, always take safety precautions when working on your vehicle. Happy fixing!


1. Can I drive my car with the C1104 code?

While it’s possible to drive with the C1104 code, it’s not recommended. The issue could lead to reduced fuel efficiency and poor acceleration, and it could potentially damage your vehicle’s electrical system.

2. How can I prevent the C1104 code from occurring?

Regular maintenance is key to preventing the C1104 code. Regularly check your vehicle’s wiring and replace any damaged parts as soon as possible.

3. Can a faulty ECM cause other issues?

Yes, a faulty ECM can cause a variety of issues, including poor fuel efficiency, reduced power, and even engine misfires. If you suspect your ECM is faulty, it’s best to have it checked as soon as possible.