Dodge Durango OBD-II Diagnostic Guide
Comprehensive diagnostic trouble code telemetry, sensor voltage thresholds, and step-by-step repair manuals for Dodge Durango models equipped with 3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP).
Dodge Durango Problem & Reliability Intelligence by Year
Top Check Engine Trouble Codes for Dodge Durango
P0300 on Dodge Durango: Diagnosis & Fix
Troubleshooting procedure for P0300: P0300: Random or Multiple Cylinder Misfire Detected specifically affecting Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).
P0420 on Dodge Durango: Diagnosis & Fix
Troubleshooting procedure for P0420: P0420: Catalyst System Efficiency Below Threshold (Bank 1) specifically affecting Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).
P0171 on Dodge Durango: Diagnosis & Fix
Troubleshooting procedure for P0171: P0171: System Too Lean (Bank 1) specifically affecting Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).
P0128 on Dodge Durango: Diagnosis & Fix
Troubleshooting procedure for P0128: P0128: Coolant Temperature Below Thermostat Regulating Temperature specifically affecting Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).
P0520 on Dodge Durango: Diagnosis & Fix
Troubleshooting procedure for P0520: P0520: Engine Oil Pressure Sensor/Switch Circuit Malfunction specifically affecting Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).
Looking for another fault code on your Dodge Durango?
Search our comprehensive 200+ SAE J1979 master OBD-II directory for Powertrain (P), Body (B), Chassis (C), and Network (U) diagnostic codes.
Frequently Asked Questions
Where is the OBD-II diagnostic port located on the Dodge Durango?
On the Dodge Durango (2021–2026), the standard 16-pin DLC port is located: Driver lower dash panel near fuse box. It supports SAE J1979 / ISO 15765-4 CAN protocols for all handheld OBD-II code readers.
What are the most common Check Engine fault codes on the Dodge Durango?
The most frequently logged trouble codes on the Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)) include P0300, P0420, P0171, P0128.
How does an onboard diagnostic scan communicate with the Dodge Durango?
Connecting an OBD-II scanner to the Dodge Durango's 16-pin DLC port establishes a high-speed CAN link (ISO 15765-4) with the ECM/PCM. It interrogates SAE J1979 Modes $01 through $0A for active DTCs, freeze-frame sensor telemetry, and oxygen sensor readiness monitors.