What Codes Will This Page Cover?
On this page, you’ll get to learn more about the following codes:
- P2102 Throttle Actuator “A” Control Motor Circuit Low
- P2103 Throttle Actuator “A” Control Motor Circuit High
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What Is the P2102 Code?
The P2102 and P2103 code definitions are “Throttle Actuator A Control Motor Circuit Low” and “Throttle Actuator A Control Motor Circuit High,” respectively. These two codes indicate that your vehicle’s powertrain control module (PCM) or engine control module (ECM) has identified a concern with the circuit connected to the throttle actuator control motor. While this is a generic OBD-II code, it will only show up in vehicles with an electronic throttle actuator, more frequently appearing in Ford and Nissan models.
More About the P2102 Code
Your throttle motor allows your electronic throttle actuator to open and close the throttle plate. Depending on how much you press the gas pedal and what conditions your vehicle is under, more or less air may be required within the engine, and the throttle motor is responsible for adjusting the actual throttle position within the throttle body to ensure that you get that correct amount of air. The P2102 and P2103 codes indicate that the circuit connecting to the throttle actuator “A” has an electrical connection issue.
What Are the Symptoms of a P2102 Code?
If the P2102 and P2103 codes are the only engine codes you’re seeing in your vehicle, it’s possible that the check engine light will be the only symptom that appears. This code doesn’t specifically mean that there’s an issue with the throttle motor but instead that the throttle actuator control motor circuit is sending an incorrect voltage signal. Other symptoms that you might see, especially if there are other DTCs set, include a general fixed idle speed and difficulties accelerating, including even an inability to accelerate in some instances.
What Are Some Causes of a P2102 Code?
Most of the time, the P2102 and P2103 codes have to do with two primary causes. Sometimes, you may see a faulty throttle actuator control motor; this may include issues within the entire throttle body, an issue with the material components of the electronic throttle control relay, or a defective throttle position sensor. Material issues can also include a dirty throttle body. The other very common cause is a problem with your electrical system. Electrical failures could include issues with the wiring harness, problems in the ignition switch circuit or the ECM sending an ON signal to the throttle control motor relay, and disconnected, loose, or corroded wiring within the vehicle. In extremely rare cases, it could have to do with a PCM issue, but this is very uncommon.
How Serious Is the P2102 Code?
The P2102 and P2103 codes can be very serious. Even if you’re currently not seeing any drivability issues associated with a bad throttle body, those issues can develop at any time. Concerns with your throttle valve can translate to overall issues related to driving, including inappropriate throttle response when you try to accelerate smoothly. This engine hesitation can cause serious safety concerns when driving, so fixing it as soon as possible is important.
Can I Still Drive with a P2102 Code?
It depends on the specific symptoms you’re seeing. In some cases, you could run into engine stalling and a general inability to accelerate at all. These cases may make it impossible for you to drive. However, if the electric voltage problems are less severe, you could still physically be able to drive. It’s still a good idea to avoid driving if possible, as these more severe issues could turn up at any time.
How Easy Is It to Diagnose a P2102 Code?
Diagnosing the P2102 and P2103 codes can generally be a difficult process. This is partially because it’s extremely common to see these codes alongside other DTCs — you’ll need to check your diagnostic scanner to see if these other codes give you more insight into your issues with engine performance. Additionally, you may need to use a number of tools, such as repair guides and wiring diagrams, to diagnose your problem. This is one reason a direct answer from an expert can be so helpful.
How Difficult Is It to Inspect a P2102 Code?
Inspection is also frequently difficult for the P2102 and P2103 codes. These codes often deal with sensor failures that you’ll need to visually inspect within your vehicle, and it’s often difficult to determine what’s correct and what’s incorrect with these codes. If you’re looking for more direct information, you probably won’t be able to get the answer from sites online; it’s best to talk to a professional instead.
Need Additional Help with Your P2102 Code?
In general, it’s extremely common to need help with the P2102 and P2103 codes. Whether you’re dealing with a wiring harness issue, a problem with bad connector pins, or just a sensor that needs to be replaced, these codes are complex enough to often benefit from an expert’s assistance.
To get started, it’s a good idea to find an auto repair shop in your area. Finding a local auto repair shop can help you fix the problem without having to go out of your way. Additionally, if you’re not able to drive the vehicle, it can reduce the cost of a tow truck.
It can also be a good idea to check out the OBD-II database at KBB.com. This database is a great tool for you to get an understanding of all the codes in your engine, including codes that you’ll want to take to see an expert. When you check out these codes, you may be able to learn what kinds of repairs you should expect at the repair shop.
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