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Diagnostic Trouble Code Definitions

NOTE: Front Heated Oxygen Sensor (HO2S) may also be referred to as Bank 1/Sensor 1 (1/1) HO2S. Rear HO2S may also be referred to as Bank 1/Sensor 2 (1/2) HO2S.

See DIAGNOSTIC TROUBLE CODE DEFINITIONS  table, then go to appropriate diagnostic procedure under DIAGNOSTIC TESTS .

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Definition
P0101  MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCE
P0102  MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT
P0103  MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT
P0106  MANIFOLD ABSOLUTE PRESSURE CIRCUIT RANGE/PERFORMANCE
P0107  MANIFOLD ABSOLUTE PRESSURE CIRCUIT LOW INPUT
P0108  MANIFOLD ABSOLUTE PRESSURE CIRCUIT HIGH VOLTAGE
P0112  INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW INPUT
P0113  INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH INPUT
P0116  ENGINE COOLANT TEMPERATURE CIRCUIT RANGE/PERFORMANCE
P0117  ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT
P0118  ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT
P0121  THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
P0122  THROTTLE POSITION SENSOR CIRCUIT LOW INPUT
P0123  THROTTLE POSITION SENSOR CIRCUIT HIGH INPUT
P0125  INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
P0128  COOLANT THERMOSTAT COOLANT TEMP BELOW THERMOSTAT REGULATING TEMP
P0130  HO2S SENSOR CIRCUIT BANK 1/SENSOR 1
P0131  HO2S SENSOR CIRCUIT LOW VOLTAGE BANK 1/SENSOR 1
P0132  HO2S SENSOR CIRCUIT HIGH VOLTAGE BANK 1/SENSOR 1
P0133  HO2S SENSOR CIRCUIT SLOW RESPONSE BANK 1/SENSOR 1
P0134  HO2S SENSOR CIRCUIT NO ACTIVITY DETECTED BANK 1/SENSOR 1
P0135  HO2S SENSOR HEATER CIRCUIT MALFUNCTION BANK 1/SENSOR 1
P0136  HO2S SENSOR CIRCUIT BANK 1/SENSOR 2
P0137  HO2S SENSOR CIRCUIT LOW VOLTAGE BANK1/SENSOR 2
P0138  HO2S SENSOR CIRCUIT HIGH VOLTAGE BANK 1/SENSOR 2
P0139  HO2S SENSOR CIRCUIT SLOW RESPONSE BANK 1/SENSOR 2
P0140  HO2S SENSOR CIRCUIT NO ACTIVITY DETECTED BANK 1/SENSOR 2
P0141  HO2S HEATER CIRCUIT MALFUNCTION BANK 1/SENSOR 2
P0171  SYSTEM TOO LEAN BANK 1
P0172  SYSTEM TOO RICH BANK 1
P0181  FUEL TEMP SENSOR A CIRCUIT RANGE/PERFORMANCE
P0182  FUEL TEMP SENSOR A CIRCUIT LOW INPUT
P0183  FUEL TEMP SENSOR A CIRCUIT HIGH INPUT
P0201  INJECTOR CIRCUIT/OPEN - CYLINDER 1
P0202  INJECTOR CIRCUIT/OPEN - CYLINDER 2
P0203  INJECTOR CIRCUIT/OPEN - CYLINDER 3
P0204  INJECTOR CIRCUIT/OPEN - CYLINDER 4
P0300 (1) RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED
P0301 (1) CYLINDER 1 - MISFIRE DETECTED
P0302 (1) CYLINDER 2 - MISFIRE DETECTED
P0303 (1) CYLINDER 3 - MISFIRE DETECTED
P0304 (1) CYLINDER 4 - MISFIRE DETECTED
P0320 (2) IGNITION/DISTRIBUTOR ENGINE SPEED INPUT CIRCUIT
P0325 (2) KNOCK SENSOR 1 CIRCUIT
P0335  CRANKSHAFT POSITION SENSOR CIRCUIT MALFUNCTION
P0340  CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION
P0350  IGNITION COIL PRIMARY/SENSOR CIRCUIT
P0401  EXHAUST GAS RECIRCULATION FLOW INSUFFICIENT DETECTED
P0403  EXHAUST GAS RECIRCULATION CONTROL CIRCUIT
P0421  CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK 1
P0441  EVAP EMISSION SYSTEM INCORRECT PURGE FLOW
P0442  EVAP EMISSION SYSTEM - LEAK DETECTED SMALL LEAK
P0443  EVAP EMISSION CTRL SYSTEM PURGE SOLENOID VALVE CIRCUIT MALFUNCTION
P0446  EVAP EMISSION SYSTEM - CANISTER CLOGGING
P0451  EVAP EMISSION SYSTEM - PRESSURE SENSOR RANGE/PERFORMANCE
P0452  EVAP EMISSION SYSTEM - PRESSURE SENSOR LOW INPUT
P0453  EVAP EMISSION SYSTEM - PRESSURE SENSOR HIGH INPUT
P0455  EVAPORATIVE EMISSION SYSTEM - LEAK DETECTED LARGE LEAK
P0456  EVAP EMISSION SYSTEM - LEAK DETECTED VERY SMALL LEAK
P0460  FUEL LEVEL SENSOR CIRCUIT
P0461  FUEL LEVEL SENSOR A CIRCUIT RANGE/PERFORMANCE
P0462  FUEL LEVEL SENSOR A CIRCUIT LOW INPUT
P0463  FUEL LEVEL SENSOR A CIRCUIT HIGH INPUT
P0506  IDLE AIR CONTROL SYSTEM - RPM LOWER THAN EXPECTED
P0507  IDLE AIR CONTROL SYSTEM - RPM HIGHER THAN EXPECTED
P0551  POWER STEERING PRESSURE SENSOR/SWITCH CIRCUIT RANGE/PERFORMANCE
P0560  SYSTEM VOLTAGE
P1330  SPARK TIMING ADJUST
(1) MIL will continuously blink when misfire is severe enough to cause catalytic converter damage.
(2) Malfunction will set DTC, but not illuminate MIL.