OBDII GEO Code Definitions.

Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.

Acura Alfa Romeo Audi BMW Buick Cadillac Chevrolet Chrysler Citroen Daewoo Daihatsu Dodge Eagle Ford Freightliner GEO Genesis GM GMC Honda Hummer Hyundai Infiniti Isuzu Jaguar Jeep Kenworth Kia Lamborghini Land Rover Lexus Lincoln Mack Mahindra Mazda Mercedes-Benz Mercury Mini Mitsubishi Nissan Oldsmobile Opel Peterbilt Peugeot Plymouth Pontiac Porsche Ram Renault Saab Saturn Scion Subaru Suzuki Toyota Volvo VW
GEO Codes
Trouble CodeFault Location
P1200 – P1299 (Fuel and air metering – injector circuit)
P1250Early Fuel Evaporation Heater Circuit Fault
P1300 – P1399 (Ignition system or misfire)
P1300Ignition Coil 1 Primary Feedback Circuit
P1305Ignition Coil 2 Primary Feedback Circuit
P1310Ignition Coil 3 Primary Feedback Circuit
P1315Ignition Coil 4 Primary Feedback Circuit
P1335Crankshaft Position Sensor Circuit
P1346Intake Camshaft Position System Performance
P1349Intake Camshaft Position System
P1400 – P1499 (Emission control)
P1408MAP Sensor Circuit
P1410Fuel Tank Pressure System Fault
P1450Barometric Pressure Sensor Circuit Fault
P1451Barometric Pressure Sensor Performance
P1460Cooling Fan Control System Fault
P1500 – P1599 (Vehicle or idle speed control)
P1500Starter Signal Circuit Fault
P1510Backup Power Supply Fault
P1520Stop Lamp Switch Circuit
P1530Ignition Timing Adjustment Switch Circuit
P1600 – P1699 (ECM – computer output circuit)
P1600PCM Battery Circuit Fault
P1656Intake CMP Actuator Solenoid Control Circuit