C2141 2016 Toyota RAV4 Code - Transmitter ID 1 Error

C2141 indicates a "Transmitter ID 1 Error," which is related to the vehicle's tire pressure monitoring system (TPMS). It suggests an issue with the communication or registration of one of the TPMS sensors.

The most common symptoms include the TPMS warning light illuminating on the dashboard and an inability to read the tire pressure for one or more tires.

This code can be triggered by a faulty TPMS sensor, a dead sensor battery, incorrect sensor registration, interference from other devices, or damage to the sensor during tire servicing.

While the code doesn’t pose an immediate safety risk, ignoring it means the TPMS may not function correctly, potentially leading to unmonitored low tire pressure, which can impact safety and fuel efficiency.

A technician uses a TPMS diagnostic tool to check each tire sensor's signal and ID registration. They may also inspect for physical damage to the sensors or wiring.

Repairs may include replacing a faulty TPMS sensor, reprogramming or re-registering the sensor ID, or resetting the TPMS system using a TPMS scanner.

No, you typically only need to replace the faulty sensor. However, if all sensors are the same age and near the end of their battery life, replacing them together may be more cost-effective.

You can attempt a TPMS reset by pressing the TPMS reset button (usually located under the steering wheel) after ensuring all tires are properly inflated. If the issue persists, professional diagnostic tools will be required.

The cost depends on the repair. Replacing a single TPMS sensor typically costs $50–$150 for the part plus labor. Reprogramming fees may range from $50–$100.

Yes, aftermarket wheels or tires can cause issues if they lack compatible TPMS sensors or if the sensors were not properly transferred and registered during installation.