AutoCodes – Scion – C2142 Scion

C2142 Scion Code - Transmitter ID 2 Error

Quick Answer

The Tire Pressure Warning Valve and Transmitters that are installed in the tire and wheel assemblies measure the tire pressures. Common causes include Faulty Tire Pressure Warning Valve and Transmitter, Faulty Tire Pressure Warning ECU and Receiver. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C2142 Scion indicates Transmitter ID 2 Error.
Common causes: Common causes include Faulty Tire Pressure Warning Valve and Transmitter, Faulty Tire Pressure Warning ECU and Receiver.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 971

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 17, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2142 Scion Description

The Tire Pressure Warning Valve and Transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values are transmitted to the Tire Pressure Warning ECU and Receiver in the vehicle as radio waves. The ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the warning light in the combination meter assembly illuminates.
When the internal circuit of a Tire Pressure Warning Valve and Transmitter is malfunctioning, this Diagnostic Trouble Code (DTC) is output.

OBDII Code C2142 Scion - Transmitter ID 2 Error - AutoCodes.com — C2142 Scion Code - Transmitter ID 2 Error

What does this mean?

What are the Possible Causes of the DTC C2142 Scion?

Faulty Tire Pressure Warning Valve and Transmitter
Faulty Tire Pressure Warning ECU and Receiver

How to Fix the DTC C2142 Scion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C2142 Scion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C2142 Scion Code

1. What does the OBDII code C2142 mean on a Scion?

C2142 indicates a "Transmitter ID 2 Error," which typically relates to an issue with the tire pressure monitoring system (TPMS), specifically one of the TPMS sensors.

2. What are the common symptoms of a C2142 code on a Scion?

Common symptoms include the TPMS warning light illuminating on the dashboard and potentially inaccurate or missing tire pressure readings.

3. What causes the C2142 code to appear?

The code is usually caused by a faulty or damaged TPMS sensor, a dead sensor battery, incorrect programming, or interference with the TPMS signal.

4. Can a weak or dead battery in a TPMS sensor trigger the C2142 code?

Yes, a weak or dead TPMS sensor battery is a common cause of the C2142 code, as it prevents the sensor from transmitting the necessary data.

5. How is the C2142 code diagnosed?

A technician will use a TPMS tool to scan the sensors, check for signal strength, verify proper programming, and inspect for physical damage to the sensors.

6. Can I drive my Scion with the C2142 code active?

While you can still drive the car, itâ€™s not recommended to ignore the issue, as the TPMS system may not function properly, potentially leading to undetected tire pressure problems.

7. How do I fix the C2142 code on my Scion?

Fixes include replacing the faulty TPMS sensor, reprogramming the system to recognize the sensor, or addressing any signal interference.

8. Do TPMS sensors need to be reprogrammed after replacement?

Yes, new TPMS sensors need to be registered or reprogrammed to the vehicle's ECU to resolve the C2142 code.

9. Can harsh weather conditions cause the C2142 code?

Extreme temperatures can sometimes interfere with TPMS sensor operation, but persistent issues likely indicate a faulty sensor.

10. How much does it cost to fix the C2142 code on a Scion?

The cost can vary but typically ranges from $50 to $250 per sensor, depending on whether the sensor is repaired or replaced and if reprogramming is needed.