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Engine-Codes – Generic – C1719

C1719 Code - Rear Left Tire Transmitter Pressure Sensor Malfunction

Quick Answer

The C1719 diagnostic trouble code (DTC) indicates a malfunction with the rear left tire pressure sensor transmitter. Common causes include Sensor damage due to road debris or impact, Wiring issues or corrosion in the sensor circuit, Low battery power in the sensor transmitter. 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
C1719 indicates Rear Left Tire Transmitter Pressure Sensor Malfunction.
Common causes
Common causes include Sensor damage due to road debris or impact, Wiring issues or corrosion in the sensor circuit, Low battery power in the sensor transmitter.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code C1719 Description

The C1719 diagnostic trouble code (DTC) indicates a malfunction with the rear left tire pressure sensor transmitter. This sensor is responsible for monitoring the air pressure within the rear left tire and transmitting that data to the vehicle's onboard computer system. When the sensor malfunctions, it can lead to inaccurate tire pressure readings being displayed on the dashboard or even a complete loss of tire pressure monitoring functionality.

OBDII Code C1719 - Rear Left Tire Transmitter Pressure Sensor Malfunction
C1719 Code - Rear Left Tire Transmitter Pressure Sensor Malfunction

Common Causes of C1719

  1. Sensor damage due to road debris or impact
  2. Wiring issues or corrosion in the sensor circuit
  3. Low battery power in the sensor transmitter
  4. Extreme temperature fluctuations affecting sensor performance
  5. Faulty sensor unit

Symptoms of C1719

  1. Tire pressure warning light illuminated on the dashboard
  2. Inaccurate or fluctuating tire pressure readings displayed
  3. Loss of tire pressure monitoring functionality
  4. Uneven tire wear on the rear left tire
  5. Decreased fuel efficiency

How to Fix C1719

  1. Begin by identifying the location of the rear left tire pressure sensor transmitter.
  2. Inspect the sensor and surrounding wiring for any visible damage or corrosion.
  3. Test the sensor's battery power and circuit connectivity using a multimeter.
  4. If the sensor is faulty, replace it with a new sensor compatible with the vehicle's make and model.
  5. Reset the tire pressure monitoring system and verify that the issue has been resolved.

Cost to Fix C1719

The typical repair costs for addressing a rear left tire transmitter pressure sensor malfunction can range from $100 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary significantly. Factors such as location, vehicle make and model, and engine type can all influence the final repair costs. It's recommended to check with local auto repair shops for a more accurate estimate based on the specific circumstances.

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Code C1719 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 C1719 Code

1. What are common symptoms of OBDII code C1719 (Rear Left Tire Transmitter Pressure Sensor Malfunction)?

The common symptoms include a TPMS warning light on the dashboard, inaccurate tire pressure readings, and potential issues with traction control system.

2. What are the possible causes of OBDII code C1719?

Possible causes can include a faulty tire pressure sensor, low tire pressure, sensor battery failure, wiring issues, or a problem with the TPMS module.

3. How can I diagnose the cause of OBDII code C1719?

Diagnosing the code typically involves using a TPMS diagnostic tool to check the sensor readings, inspecting the sensor and its wiring for damage, and verifying tire pressure in the affected tire.

4. Can I continue driving with OBDII code C1719 active?

It is not recommended to drive with the code active, as inaccurate tire pressure readings can affect vehicle safety and performance. It's best to address the issue promptly.

5. How can I reset OBDII code C1719 after fixing the underlying issue?

After fixing the root cause, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the system's memory.

6. Is it necessary to replace the entire tire pressure sensor for code C1719?

In some cases, replacing the tire pressure sensor may be necessary if it is found to be faulty. However, it's best to diagnose the specific issue before proceeding with any repairs.

7. Can extreme weather conditions cause OBDII code C1719 to trigger?

Extreme temperature changes or severe weather conditions can sometimes affect tire pressure readings and trigger the code. It's important to monitor tire pressure regularly in such conditions.

8. Will OBDII code C1719 impact my vehicle's fuel efficiency?

While the code itself may not directly impact fuel efficiency, maintaining proper tire pressure – which the TPMS system helps monitor – can contribute to better fuel economy and overall vehicle performance.

9. How long does it typically take to repair OBDII code C1719?

The repair time can vary depending on the specific cause of the code. Simple fixes like reprogramming the sensor or replacing a battery may take less time than diagnosing and replacing a faulty sensor.

10. Can I fix OBDII code C1719 myself, or should I consult a professional mechanic?

Depending on your experience and access to tools, you may be able to address some aspects of the issue yourself, such as checking tire pressure. However, for more complex diagnostics and repairs, it's advisable to consult a qualified mechanic.

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