Engine-CodesGeneric – C2112

C2112 Code - Transmitter ID 2 Operation Stop

Quick Answer

The C2112 code indicates an issue with Transmitter ID 2 operation, specifically that it has stopped functioning as intended. Common causes include Faulty key fob battery, Key fob synchronization issue with the vehicle's immobilizer system, Wiring or connection issues between the key fob receiver and the vehicle's computer system. 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
C2112 indicates Transmitter ID 2 Operation Stop.
Common causes
Common causes include Faulty key fob battery, Key fob synchronization issue with the vehicle's immobilizer system, Wiring or connection issues between the key fob receiver and the vehicle's computer system.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code C2112 Description

The C2112 code indicates an issue with Transmitter ID 2 operation, specifically that it has stopped functioning as intended. In modern vehicles, Transmitter ID 2 refers to the second key fob or remote transmitter that is used to lock/unlock the vehicle, set off the alarm, or even start the engine remotely in some cases. When this code is triggered, it means that the vehicle's onboard computer system has detected a problem with the operation of the second key fob.

OBDII Code C2112 - Transmitter ID 2 Operation Stop
C2112 Code - Transmitter ID 2 Operation Stop

Common Causes of C2112

  1. Faulty key fob battery
  2. Key fob synchronization issue with the vehicle's immobilizer system
  3. Wiring or connection issues between the key fob receiver and the vehicle's computer system
  4. Faulty key fob transmitter unit

Symptoms of C2112

  1. Inability to lock or unlock the vehicle remotely
  2. Alarm system not responding to key fob commands
  3. Engine not starting remotely using the key fob
  4. Error message displayed on the dashboard related to the key fob

How to Fix C2112

  1. Replace the key fob battery: Start by replacing the battery in the key fob to ensure that power is not the issue causing the transmitter to stop working.
  2. Re-synchronize the key fob: Try re-synchronizing the key fob with the vehicle's immobilizer system according to the manufacturer's instructions.
  3. Check wiring and connections: Inspect the wiring and connections between the key fob receiver and the vehicle's computer system for any damage or loose connections.
  4. Replace key fob transmitter unit: If all else fails, replace the key fob transmitter unit to resolve the issue.

Cost to Fix C2112

The cost of repairing a Transmitter ID 2 operation stop issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, replacing a key fob battery can cost around $5 to $20, while a new key fob transmitter unit can range from $50 to $100 or more. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair cost could be anywhere from $100 to $300 or more. It's important to consult with a professional technician to get an accurate estimate based on your specific situation.

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Code C2112 Information for Specific Makes

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 C2112 Code

1. What are the common symptoms of OBDII code C2112 Transmitter ID 2 Operation Stop?

Common symptoms include issues with tire pressure monitoring system (TPMS) functionality, such as inaccurate or unavailable tire pressure readings.

2. What can cause the OBDII code C2112 Transmitter ID 2 Operation Stop to trigger?

The code C2112 is usually triggered by a malfunction in the TPMS transmitter, a weak or dead battery in the TPMS sensor, or issues with the TPMS receiver.

3. How can I diagnose the cause of OBDII code C2112 Transmitter ID 2 Operation Stop?

Diagnosing this code typically involves using a TPMS tool to check the status of each sensor, verifying the battery levels in the TPMS sensors, and inspecting the TPMS receiver for any faults.

4. Can low tire pressure cause the OBDII code C2112 Transmitter ID 2 Operation Stop to appear?

Yes, low tire pressure can lead to the triggering of code C2112 as it affects the proper operation of the TPMS sensors.

5. What are some repair tips for fixing OBDII code C2112 Transmitter ID 2 Operation Stop?

Repair tips include replacing the TPMS sensor batteries, reprogramming or replacing faulty TPMS sensors, ensuring proper tire pressure in all tires, and checking for any signal interference that may disrupt TPMS operation.

6. Is it safe to continue driving with OBDII code C2112 Transmitter ID 2 Operation Stop present?

While the vehicle should still be safe to drive with this code, it is important to address the underlying TPMS issue promptly to ensure proper tire pressure monitoring and safety.

7. Can weather conditions affect the triggering of OBDII code C2112 Transmitter ID 2 Operation Stop?

Extreme weather conditions, such as temperature fluctuations, can impact the TPMS sensors and potentially lead to the triggering of code C2112.

8. How much does it typically cost to repair OBDII code C2112 Transmitter ID 2 Operation Stop?

The cost of repairing this code can vary depending on the underlying issue, but it may involve expenses for TPMS sensor replacement, battery replacement, or diagnostic services.

9. Will resetting the OBDII system clear the code C2112 Transmitter ID 2 Operation Stop?

Resetting the OBDII system may temporarily clear the code, but if the underlying TPMS issue is not addressed, the code is likely to reappear.

10. How often should TPMS sensors be checked to prevent OBDII code C2112 Transmitter ID 2 Operation Stop?

It is recommended to have TPMS sensors checked during regular vehicle maintenance intervals or whenever there are signs of TPMS malfunctions to prevent the triggering of code C2112.

Discuss the causes and fixes for C2112 OBDII Code

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