All Detroit Diesel Fault Codes
106 Detroit Diesel diesel fault codes. Click any code for causes, diagnostics, severity, and common fixes.
DD-100-1 critical
Engine Oil Pressure Low
DD-3246-0 critical
Aftertreatment 1 Diesel Particulate Filter Outlet Temperature — Data Valid But Above Normal (Most Severe)
DD-3464-31 critical
Cylinder Head Pressure Excessive
DD-5246-16 critical
Aftertreatment SCR Operator Inducement Severity — Data Valid But Above Normal (Moderately Severe)
DD-629-12 critical
MCM Internal Failure
DD-101-0 serious
Crankcase Pressure High
DD-103-0 serious
Engine Turbocharger 1 Speed — Data Valid But Above Normal (Most Severe)
DD-1080-7 serious
Valve Train Timing Error
DD-110-0 serious
Engine Coolant Temperature High
DD-111-1 serious
Coolant Level Low
DD-1322-31 serious
Multiple Cylinder Misfire Detected
DD-1569-31 serious
Engine Protection Derate - Fuel
DD-157-0 serious
Fuel Rail Pressure Too High
DD-157-1 serious
Fuel Rail Pressure Too Low
DD-175-0 serious
Engine Oil Temperature High
DD-190-2 serious
Engine Speed Sensor Implausible
DD-3251-0 serious
Aftertreatment 1 Diesel Particulate Filter Differential Pressure — Data Valid But Above Normal (Most Severe)
DD-3364-18 serious
Improper Diesel Exhaust Fluid (DEF) Quality Warning
DD-3719-0 serious
Aftertreatment 1 Diesel Particulate Filter Soot Load Percent — Data Valid But Above Normal (Most Severe)
DD-4334-1 serious
Aftertreatment 1 Diesel Exhaust Fluid Doser 1 Absolute Pressure — Data Valid But Below Normal (Most Severe)
DD-4364-17 serious
Aftertreatment 1 SCR Conversion Efficiency — Data Valid But Below Normal (Least Severe)
DD-4765-0 serious
DOC Inlet Temperature Too High
DD-5246-15 serious
Aftertreatment SCR Operator Inducement Severity — Data Valid But Above Normal (Least Severe)
DD-5394-7 serious
DEF Dosing Valve Not Responding — definition not reliably documented
DD-637-7 serious
Fuel Timing Error
DD-641-7 serious
Engine Variable Geometry Turbocharger Actuator #1 — Mechanical System Not Responding Properly
DD-898-9 serious
Speed or Torque Request Message Invalid on J1939
DD-94-1 serious
Fuel Delivery Pressure Low
DD-97-0 serious
Water in Fuel Detected
DD-100-3 moderate
Engine Oil Pressure Sensor Signal High
DD-102-0 moderate
Engine Intake Manifold #1 Pressure — Data Valid But Above Normal (Most Severe)
DD-102-1 moderate
Engine Intake Manifold #1 Pressure — Data Valid But Below Normal (Most Severe)
DD-105-0 moderate
Intake Manifold Temperature High
DD-110-16 moderate
Coolant Temperature High-Moderate
DD-110-3 moderate
Engine Coolant Temperature Sensor Signal High
DD-1231-2 moderate
J1939 Data Link Error
DD-132-2 moderate
Mass Air Flow Sensor Implausible
DD-1387-3 moderate
Air Pressure Signal High
DD-1485-5 moderate
ECM Main Relay Circuit Open
DD-157-4 moderate
Fuel Rail Pressure Sensor Circuit Low
DD-1636-3 moderate
Intake Manifold Temperature Sensor Circuit High
DD-1636-4 moderate
Intake Manifold Temperature Sensor Circuit Low
DD-164-3 moderate
Fuel Rail Pressure Signal High
DD-168-0 moderate
Battery Voltage High
DD-168-1 moderate
Battery Voltage Low During Operation
DD-2631-0 moderate
Engine Charge Air Cooler 1 Outlet Pressure — Data Valid But Above Normal (Most Severe)
DD-2631-1 moderate
Engine Charge Air Cooler 1 Outlet Pressure — Data Valid But Below Normal (Most Severe)
DD-2659-2 moderate
Engine Exhaust Gas Recirculation 1 Mass Flow Rate — Data Erratic, Intermittent or Incorrect
DD-2659-4 moderate
Engine Exhaust Gas Recirculation 1 Mass Flow Rate — Voltage Below Normal or Shorted Low
DD-27-3 moderate
Engine Exhaust Gas Recirculation 1 Valve Position — Voltage Above Normal or Shorted High
DD-2791-7 moderate
Engine Exhaust Gas Recirculation 1 Valve 1 Control 1 — Mechanical System Not Responding Properly
DD-2795-7 moderate
Engine Variable Geometry Turbocharger (VGT) 1 Actuator Position — Mechanical System Not Responding Properly
DD-3031-3 moderate
Aftertreatment 1 Diesel Exhaust Fluid Tank Temperature 1 — Voltage Above Normal or Shorted High
DD-3031-4 moderate
Aftertreatment 1 Diesel Exhaust Fluid Tank Temperature 1 — Voltage Below Normal or Shorted Low
DD-3058-4 moderate
DEF Line Heater Short to Ground — definition not reliably documented
DD-3058-5 moderate
DEF Tank Heater Circuit Open — definition not reliably documented
DD-3216-2 moderate
NOx Inlet Sensor Not Responding
DD-3226-2 moderate
NOx Outlet Sensor Not Responding
DD-3251-2 moderate
Aftertreatment 1 Diesel Particulate Filter Differential Pressure — Data Erratic, Intermittent or Incorrect
DD-3361-5 moderate
Diesel Exhaust Fluid (DEF) System Open Circuit Detected
DD-3361-6 moderate
DEF Dosing Unit Current Above Normal — definition not reliably documented
DD-3464-0 moderate
Throttle Actuator Position Exceeded Upper Limit
DD-3480-4 moderate
HC Doser Injector Circuit Low
DD-3480-5 moderate
HC Doser Injector Circuit Open
DD-3482-0 moderate
Air Intake Throttle Position High
DD-3482-1 moderate
Air Intake Throttle Position Low
DD-3490-3 moderate
Air Intake Throttle Actuator Short to Battery
DD-3490-4 moderate
Air Intake Throttle Actuator Short to Ground
DD-3509-4 moderate
Sensor Supply Voltage 1 Low
DD-3510-4 moderate
Sensor Supply Voltage 2 Low
DD-3511-4 moderate
Sensor Supply Voltage 3 Low
DD-3512-4 moderate
Sensor Supply Voltage 4 Low
DD-3609-2 moderate
Aftertreatment 1 Diesel Particulate Filter Intake Pressure — Data Erratic, Intermittent or Incorrect
DD-3610-2 moderate
Aftertreatment 1 Diesel Particulate Filter Outlet Pressure — Data Erratic, Intermittent or Incorrect
DD-3713-31 moderate
Active Regen Inhibited
DD-411-2 moderate
Engine Exhaust Gas Recirculation 1 Differential Pressure — Data Erratic, Intermittent or Incorrect
DD-4331-1 moderate
Aftertreatment 1 Diesel Exhaust Fluid Actual Dosing Quantity — Data Valid But Below Normal (Most Severe)
DD-4334-0 moderate
Aftertreatment 1 Diesel Exhaust Fluid Doser 1 Absolute Pressure — Data Valid But Above Normal (Most Severe)
DD-4334-2 moderate
Aftertreatment 1 Diesel Exhaust Fluid Doser 1 Absolute Pressure — Data Erratic, Intermittent or Incorrect
DD-4360-0 moderate
Aftertreatment 1 SCR Intake Temperature — Data Valid But Above Normal (Most Severe)
DD-4360-2 moderate
Aftertreatment 1 SCR Intake Temperature — Data Erratic, Intermittent or Incorrect
DD-4363-2 moderate
Aftertreatment 1 SCR Outlet Temperature — Data Erratic, Intermittent or Incorrect
DD-4765-2 moderate
DOC Inlet Temperature Implausible
DD-520194-31 moderate
CCV Filter Restriction High
DD-520196-1 moderate
Coolant Deaeration Problem
DD-5571-0 moderate
Fuel Rail Pressure Relief Valve Open
DD-5742-7 moderate
DEF Supply Module Heater Not Functional — definition not reliably documented
DD-625-13 moderate
Proprietary Data Link Fault
DD-636-2 moderate
Camshaft Position Sensor Implausible
DD-639-9 moderate
J1939 Data Link - Abnormal Update Rate
DD-641-5 moderate
Engine Variable Geometry Turbocharger Actuator #1 — Current Below Normal or Open Circuit
DD-651-5 moderate
Injector Cylinder #1 Current Below Normal
DD-651-6 moderate
Injector Cylinder #1 Current Above Normal
DD-652-5 moderate
Injector Cylinder #2 Current Below Normal
DD-653-5 moderate
Injector Cylinder #3 Current Below Normal
DD-654-5 moderate
Injector Cylinder #4 Current Below Normal
DD-655-5 moderate
Injector Cylinder #5 Current Below Normal
DD-656-5 moderate
Injector Cylinder #6 Current Below Normal
DD-84-2 moderate
Vehicle Speed Sensor Implausible
DD-101-3 minor
Crankcase Pressure Sensor Signal High
DD-108-2 minor
Barometric Pressure Sensor Erratic
DD-1172-2 minor
Turbo Compressor Inlet Temperature Implausible
DD-1172-4 minor
Turbo Compressor Inlet Temperature Signal Low
DD-1673-0 minor
DEF Tank Temperature High — definition not reliably documented
DD-1761-1 minor
Aftertreatment 1 Diesel Exhaust Fluid Tank Volume — Data Valid But Below Normal (Most Severe)
DD-70-1 minor
Parking Brake Switch Signal Lost