Diagnostic Trouble Code Search

Find detailed information about vehicle diagnostic trouble codes (DTCs). Enter a code or select a make to search our comprehensive database.

Search By Code

DTC Code Format Guide
P Powertrain
B Body
C Chassis
U Network

Filter By Code Type

All DTC Codes

Code Type System System Name Module Message
P0303 P-Code Powertrain Ignition System Engine Control Module Cylinder 3 Misfire Detected
P0304 P-Code Powertrain Ignition System Engine Control Module Cylinder 4 Misfire Detected
P0305 P-Code Powertrain Ignition System Engine Control Module Cylinder 5 Misfire Detected
P0306 P-Code Powertrain Ignition System Engine Control Module Cylinder 6 Misfire Detected
P0307 P-Code Powertrain Ignition System Engine Control Module Cylinder 7 Misfire Detected
P0308 P-Code Powertrain Ignition System Engine Control Module Cylinder 8 Misfire Detected
P0309 P-Code Powertrain Ignition System Engine Control Module Cylinder 9 Misfire Detected
P0310 P-Code Powertrain Ignition System Engine Control Module Cylinder 10 Misfire Detected
P0311 P-Code Powertrain Ignition System Engine Control Module Cylinder 11 Misfire Detected
P0312 P-Code Powertrain Ignition System Engine Control Module Cylinder 12 Misfire Detected
P0320 P-Code Powertrain Ignition System Engine Control Module Ignition/Distributor Engine Speed Input Circuit Malfunction
P0321 P-Code Powertrain Ignition System Engine Control Module Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0322 P-Code Powertrain Ignition System Engine Control Module Ignition/Distributor Engine Speed Input Circuit No Signal
P0323 P-Code Powertrain Ignition System Engine Control Module Ignition/Distributor Engine Speed Input Circuit Intermittent
P0325 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
P0326 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 1 Circuit low Input (Bank 1 or Single Sensor)
P0328 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330 P-Code Powertrain Knock Sensor Engine Control Module Knock Sensor 2 Circuit Malfunction (Bank 2)