Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's exhaust is getting too hot when it tries to clean itself, which can be a problem.
The code P244D indicates that the temperature in the exhaust system is too high during the regeneration process of the particulate filter on Bank 1.
P244D is triggered when the Engine Control Module (ECM) detects that the exhaust temperature is exceeding the threshold level during the regeneration process of the Diesel Particulate Filter (DPF) on Bank 1. This can prevent the DPF from properly burning off soot, leading to potential clogging and performance issues.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty exhaust temperature sensor
• Clogged Diesel Particulate Filter (DPF)
• Issues with the fuel injection system
DPF: Diesel Particulate Filter, a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.
ECM: Engine Control Module, the computer responsible for managing the engine's functions.
• Read the OBD-II codes with a scanner.
• Inspect the exhaust temperature sensor for damage or faults.
• Check the Diesel Particulate Filter for clogs or damage.
• Replace the faulty exhaust temperature sensor.
• Clean or replace the Diesel Particulate Filter.
• Inspect and repair the fuel injection system if necessary.
• OBD-II scanner
• Multimeter
• Mechanic's toolset
$200 - $1200
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regularly maintain the exhaust system.
• Use high-quality diesel fuel.
• Perform periodic DPF cleaning.
Engine Performance
• Avoid driving with this code active to prevent further damage.
• Consult a professional mechanic for a thorough inspection.
Check with the vehicle manufacturer for specific warranty coverage on emissions-related components.
This code has been more common in diesel vehicles with advanced emission control systems.
High – If not addressed, it can lead to severe engine damage and increased emissions.
Driving with a malfunctioning exhaust system can lead to increased emissions and may not comply with local environmental regulations.
• Vehicle at operating temperature
• Under load conditions
The exhaust temperature sensor is typically located near the Diesel Particulate Filter in the exhaust system.
Q: Can I drive with a P244D code?
A: It's not recommended to drive with this code active, as it can lead to engine damage.
Q: How often should the DPF be cleaned?
A: The DPF should be cleaned as part of regular maintenance, typically every 50,000 to 100,000 miles, depending on driving conditions.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.