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Even though the C2000 code applies to all makes and models and signals fuel and air metering disruptions, it can be manufacturer-specific to some brands. The most common manufacturer-specific version of this code is for the Dodge Ram. It has to do with the brake switch input circuit becoming faulty or broken. However, the code can also be found in Ford, where it relates to the exhaust gas recirculation sensor being at fault.
For Ford vehicles, the C2000 code often relates to insufficient exhaust gas recirculation (EGR) flow. The EGR system works so that the burned exhaust gas can easily flow back into the engine, effectively reducing emissions. It also lowers the combustion temperatures within the motor, which helps keep operating temperatures low. The C2000 with Ford means that the car’s ECU has tried to open the EGR valve but it cannot get enough exhaust gas into the engine. Some of the issues you’ll typically find is rough idle, poor fuel economy, and lack of power in acceleration.
Dodge C2000 Brake Switch Circuit Input Malfunction Description
With Dodge, the C2000 code refers to issues with the brake switch circuit and its relation to the brake pedal position and those inputs that are sent to the power control module (PCM).
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What Is the C2000 Code?
The C2000 code means that the PCM has indicated a fault with the brake switch circuit which is the dedicated stop lamp circuit. The code also deactivates the cruise control system and the transmission torque converter lockup system, as well as the stop lamps on the vehicle. The PCM throws this code when it registers a voltage or resistance reading from the brake lamp circuit that is out of its normal specification range.
What Are the Symptoms of a C2000 Code?
The most common symptoms of a C2000 code in a Dodge is inoperative brake lamps or brake lamps that continuously stay illuminated. Another symptom is the failure of the torque convertor to lock up which can cause extra wheel slippage when accelerating. The vehicle can also stall when stopped and in gear if the torque convertor lockup fails to disengage regularly. More often than not, the brake lamps are the most visible symptom along with the Check Engine Light illuminating. For more information on Check Engine Lights, visit KBB’s service guide.
What Are Some Causes of a C2000 Code?
The common causes of the C2000 showing in a Dodge is that there is a brake lamp switch that has failed or is misadjusted, or that there simply is a blown fuse. Sometimes faulty brake bulb sockets or blow bulbs that are shorted can also cause the code to trigger. Also, open or corroded writing connectors or wiring harnesses that are stripped can be the cause of the code.
How Serious Is the C2000 Code?
A C2000 code in a Dodge is typically not the most serious code when thinking about mechanical effects but it is dangerous because it can cause your brake lamps to cease working. This can be highly dangerous in traffic and cause serious accidents. Also, if the torque convertor fails to lock up, or the lockup circuit fails to disengage, this may cause very serious drivability issues. Either way, you should get this issue addressed by a qualified technician if you experience any of these issues with your Dodge.
Can I Still Drive with a C2000 Code?
On the surface, C2000 can seem like a benign issue, but you should never drive if something is amiss with the brake lamps. You’d be operating a vehicle with malfunctioning equipment. At the very least, you could get a ticket. You could also easily place yourself and other drivers in serious bodily harm by causing a potential accident in traffic.
As far as issues with the torque converter go, continuing to drive if the vehicle is experiencing slipping issues and difficulties with traction can also cause hazardous driving conditions. That’s why you should immediately address these issues when you come across them.
How Easy Is It to Diagnose a C2000 Code?
Generally speaking, diagnosing a C2000 code should be relatively simple. The technician will look for problems with the stop lamp switch and the wiring that leads to and from the assembly. Most stop lamp switches are of the ON/OFF variety and are found on the brake pedal’s support bracket, so this is the first place they’ll look. In any design, the constant voltage is on one side of the switch and when the switch’s contacts are closed, the voltage moves across the switch’s contacts and on to the next application. The technician should always inspect wiring and connectors, and replace anything that is damaged or corroded.
How Difficult Is It to Inspect a C2000 Code?
Since the C2000 code requires inspecting the stop lamp switch, it’s relatively easy to repair if a new switch or wiring harness is required. If the problem is with the wiring that leads from the stop lamp switch and the PCM, it’s recommended to have a qualified technician look at the issue and fix it. This is because you may risk fixing the wrong end of the wiring and this can lead to bigger circuit issues than what you are currently facing.
Need Additional Help with Your C2000 Code?
For more information on the C2000 as well as where to find qualified technicians in your area to help you with your code issue by visiting KBB’s service center.
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