The P2484 OBD-II code indicates a problem with the exhaust gas temperature sensor circuit. This code is typically associated with diesel engines that utilize Diesel Exhaust Fluid (DEF) for emissions control.
What Does the P2484 Code Mean?
When the Powertrain Control Module (PCM) detects an intermittent or erratic signal from the exhaust gas temperature (EGT) sensor, it stores the P2484 code. This sensor plays a crucial role in measuring the temperature of the exhaust gases entering and exiting the Selective Catalytic Reduction (SCR) system.
What Causes the P2484 Code?
Several factors can trigger the P2484 code, including:
- Exhaust Gas Temperature (EGT) sensor failure
- Powertrain Control Module (PCM) failure
- Wiring issues, such as damaged or corroded wiring
What Are the Symptoms of the P2484 Code?
Common symptoms associated with the P2484 code include:
- Check Engine Light illumination
- Decreased engine performance
- Increased emissions
- Possible issues with the vehicle’s exhaust system
How Serious Is the P2484 Code?
The P2484 code is classified as a moderate severity code. While it may not pose an immediate threat to your vehicle’s safety or functionality, it is advisable to address the issue within a reasonable timeframe to prevent further complications.
How to Diagnose the P2484 Code
Diagnosing the P2484 code involves several steps:
- Use an OBD-II scanner to confirm the presence of the P2484 code.
- Inspect the EGT sensor and wiring for any visible damage or corrosion.
- Check the PCM for any software updates or faults.
- Perform a continuity test on the wiring to ensure proper connectivity.
- Replace the EGT sensor if it is determined to be faulty.
Common Repairs for the P2484 Code
Common repairs for the P2484 code may include:
- Replacing the exhaust gas temperature (EGT) sensor
- Repairing or replacing damaged wiring or connectors
- Updating or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P2484 Code?
The cost to fix the P2484 code can vary widely based on the specific repair needed. Generally, you can expect the following estimates:
- EGT sensor replacement: $100 – $300
- Wiring repairs: $50 – $200
- PCM replacement: $400 – $1,200
Can I Fix the P2484 Code Myself?
If you have experience with automotive repairs and access to the necessary tools, you may be able to diagnose and fix the P2484 code yourself. However, if you are not comfortable with vehicle repair, it is recommended to consult with a professional mechanic to ensure proper diagnosis and repair.
