Engine-CodesRAM – C1504 RAM

C1504 RAM Code - Tire Pressure Sensor 4

Quick Answer

The C1504 diagnostic code indicates an issue with Tire Pressure Sensor 4 in the vehicle's tire pressure monitoring system (TPMS). Common causes include Damaged Tire Pressure Sensor 4, Low battery voltage in the sensor, Signal interference from electronic devices. 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
C1504 RAM indicates Tire Pressure Sensor 4.
Common causes
Common causes include Damaged Tire Pressure Sensor 4, Low battery voltage in the sensor, Signal interference from electronic devices.
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 C1504 RAM Description

The C1504 diagnostic code indicates an issue with Tire Pressure Sensor 4 in the vehicle's tire pressure monitoring system (TPMS). This sensor is responsible for monitoring the air pressure in the fourth tire of the vehicle. The TPMS is a crucial safety feature that alerts the driver when tire pressure is low, helping to prevent accidents and improve fuel efficiency.

OBDII Code C1504 RAM - Tire Pressure Sensor 4
C1504 RAM Code - Tire Pressure Sensor 4

Common Causes of C1504 RAM

  1. Damaged Tire Pressure Sensor 4
  2. Low battery voltage in the sensor
  3. Signal interference from electronic devices
  4. Faulty TPMS control module
  5. Incorrect tire installation or rotation

Symptoms of C1504 RAM

  1. TPMS warning light illuminates on the dashboard
  2. Inaccurate tire pressure readings displayed on the dashboard
  3. Fluctuating tire pressure readings while driving
  4. Difficulty maintaining proper tire pressure

How to Fix C1504 RAM

  1. Begin by visually inspecting Tire Pressure Sensor 4 for any visible damage or corrosion.
  2. Use a TPMS scan tool to read the sensor's data and determine if it is transmitting accurate signals.
  3. If the sensor is malfunctioning, replace Tire Pressure Sensor 4 with a new one.
  4. Reset the TPMS system to ensure accurate tire pressure readings.
  5. Test drive the vehicle to verify that the TPMS warning light is no longer illuminated.

Cost to Fix C1504 RAM

The cost of repairing Tire Pressure Sensor 4 can vary depending on the make and model of the vehicle, as well as the location of the repair shop. On average, replacing a tire pressure sensor can cost between $50 to $200 per sensor, not including labor costs. The total repair cost, including parts and labor, can range from $100 to $400. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple shops before proceeding with the repair.

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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 C1504 RAM Code

1. What does the OBDII code C1504 in a RAM vehicle mean?

C1504 indicates an issue with Tire Pressure Sensor 4, typically relating to communication, signal, or functionality problems with the fourth tire pressure monitoring sensor.

2. What are the common symptoms of code C1504 in a RAM vehicle?

Common symptoms include the tire pressure warning light illuminating on the dashboard, inaccurate tire pressure readings, or no reading from the fourth tire sensor.

3. What causes the C1504 code to appear in a RAM vehicle?

This code is often caused by a faulty tire pressure sensor, dead sensor battery, damaged wiring, interference with the sensor signal, or a malfunction in the tire pressure monitoring system (TPMS).

4. How do I diagnose the C1504 code in my RAM?

A professional scan tool can check sensor signals and pinpoint the issue. Visual inspection of the tire pressure sensor and its wiring is also helpful to identify physical damage or corrosion.

5. Can I drive my RAM with the C1504 code?

Yes, you can drive with this code present, but it is not recommended for long periods, as the TPMS may not function correctly, potentially leading to unrecognized low tire pressure and unsafe driving conditions.

6. How do I fix the C1504 code in my RAM vehicle?

Repairs may include replacing the faulty tire pressure sensor, reprogramming or resetting the TPMS, repairing damaged wiring, or addressing any interference affecting the sensor signal.

7. How much does it cost to repair the C1504 code in a RAM vehicle?

The cost varies but typically ranges from $50 to $150 for a new tire pressure sensor, plus labor if professional installation is required, which can add $50 to $100.

8. Does the C1504 code require TPMS reprogramming after repair?

Yes, after replacing or repairing a tire pressure sensor, the TPMS will often need to be reprogrammed or reset using a specialized tool to ensure proper communication.

9. Can a weak battery in the sensor cause the C1504 code?

Yes, a weak or dead battery in the tire pressure sensor is a common cause of the C1504 code, as it prevents the sensor from transmitting data to the TPMS module.

10. How can I prevent the C1504 code from occurring again?

Regularly check tire pressure, inspect sensors for damage during tire changes, and replace sensors with high-quality, compatible parts when needed to maintain the TPMS system.

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