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Diagnostic Trouble Code (DTC) Chart

DIAGNOSTIC TROUBLE CODE CHART

DTC (MIL indication(1) Detection Item Probable Cause Reference
P0107 (3) Manifold Absolute Pressure Circuit Low Input
  • Open or short in MAP sensor circuit
  • MAP sensor
  • ECM/PCM
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
P0108 (3) Manifold Absolute Pressure Circuit High Input
  • Open in MAP sensor circuit
  • MAP sensor
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
P0111 (10) Intake Air Temperature Circuit Range/Performance Problem
  • IAT sensor
INTAKE AIR TEMPERATURE (IAT) SENSOR
P0112 (10) Intake Air Temperature Circuit Low Input
  • Short in IAT sensor circuit
  • IAT sensor
  • ECM/PCM
INTAKE AIR TEMPERATURE (IAT) SENSOR
P0113 (10) Intake Air Temperature Circuit High Input
  • Open in IAT sensor circuit
  • IAT sensor
  • ECM/PCM
INTAKE AIR TEMPERATURE (IAT) SENSOR
P0116 (86) Engine Coolant Temperature Circuit Range/Performance Problem
  • ECT sensor
  • Cooling system
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
P0117 (6) Engine Coolant Temperature Circuit Low Input
  • Short in ECT sensor circuit
  • ECT sensor
  • ECM/PCM
TROUBLESHOOTING FLOWCHART
P0118 (6) Engine Coolant Temperature Circuit High Input
  • Open in ECT sensor circuit
  • ECT sensor
  • ECM/PCM
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
P0122 (7) Throttle Position Circuit Low Input
  • Open or short in TP sensor circuit
  • TP sensor
  • ECM/PCM
THROTTLE POSITION (TP) SENSOR
P0123 (7) Throttle Position Circuit High Input
  • Open in TP sensor circuit
  • TP sensor
  • ECM/PCM
THROTTLE POSITION (TP) SENSOR
P0131 (1) Primary Heated Oxygen Sensor Circuit Low Voltage (Sensor 1)
  • Short in Primary HO2S (Sensor 1) circuit
  • Primary HO2S (Sensor 1)
  • Fuel supply system
  • ECM/PCM
PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) (SENSOR 1)
P0132 (1) Primary Heated Oxygen Sensor Circuit High Voltage (Sensor 1)
  • Open in Primary HO2S (Sensor 1) circuit
  • Primary HO2S (Sensor 1)
  • ECM/PCM
PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) (SENSOR 1)
P0133 (61) Primary Heated Oxygen Sensor Slow Response (Sensor 1)
  • Primary HO2S (Sensor 1)
  • Exhaust system
DESCRIPTION
P0135 (41) Primary Heated Oxygen Sensor Heater Circuit Malfunction (Sensor 1)
  • Open or short in Primary HO2S (Sensor 1) heater circuit
  • ECM/PCM
HEATED OXYGEN SENSOR (HO2S) HEATER
P0137 (63) Secondary Heated Oxygen Sensor Circuit Low Voltage (Sensor 2)
  • Short in Secondary HO2S (Sensor 2) circuit
  • Secondary HO2S (Sensor 2)
  • ECM/PCM
SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)
P0138 (63) Secondary Heated Oxygen Sensor Circuit High Voltage (Sensor 2)
  • Open in Secondary HO2S (Sensor 2) circuit
  • Secondary HO2S (Sensor 2)
  • ECM/PCM
SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)
P0139 (63) Secondary Heated Oxygen Sensor Slow Response (Sensor 2)
  • Secondary HO2S (Sensor 2)
SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)
P0141 (65) Secondary Heated Oxygen Sensor Heater Circuit Malfunction (Sensor 2)
  • Open or short in Secondary HO2S (Sensor 2) heater circuit
  • ECM/PCM
HEATED OXYGEN SENSOR (HO2S) HEATER
P0171 (45) System Too Lean
  • Fuel supply system
  • Primary HO2S (Sensor 1)
  • MAP sensor
  • Contaminated fuel
  • Valve clearance
  • Exhaust leakage
FUEL SUPPLY SYSTEM
P0172 (45) System Too Rich
  • Fuel supply system
  • Primary HO2S (Sensor 1)
  • MAP sensor
  • Contaminated fuel
  • Valve clearance
FUEL SUPPLY SYSTEM
P0301
P0302
P0303
P0304
(71)
(72)
(73)
(74)
  • Cylinder 1
  • Cylinder 2
  • Cylinder 3
  • Cylinder 4

Misfire Detected
  • Fuel Injector
  • Fuel Injector circuit
  • Ignition system
  • Low compression
  • Valve clearance
MISFIRE DETECTED IN ONE CYLINDER
P0325 (23) Knock Sensor (KS) Circuit Malfunction
  • Open or short in Knock Sensor (KS) circuit
  • Knock Sensor (KS)
  • ECM/PCM
KNOCK SENSOR (KS)
P0335 (4) Crankshaft Position Sensor Circuit Malfunction
  • Crankshaft Position Sensor
  • Crankshaft Position Sensor circuit
  • ECM/PCM
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P0336 (4) Crankshaft Position Sensor Range/Performance
  • Crankshaft Position Sensor
  • Timing belt skipped teeth
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P0420 (67) Catalyst System Efficiency Below Threshold
  • Three Way Catalytic converter
  • Secondary HO2S
DESCRIPTION
P0441 (92) Evaporative Emission Control System Insufficient Purge Flow
  • EVAP Purge Control Solenoid Valve
  • Open or short in EVAP Purge Control Solenoid Valve circuit
  • EVAP Control Canister
  • Vacuum lines
  • ECM/PCM
DESCRIPTION
P0500(3) (17) Vehicle Speed Sensor Circuit Malfunction
  • Vehicle Speed Sensor
  • Vehicle Speed Sensor circuit
  • ECM
VEHICLE SPEED SENSOR (VSS)
P0501(4) (17) Vehicle Speed Sensor Circuit Range/Performance
  • Vehicle Speed Sensor
  • Vehicle Speed Sensor circuit
  • PCM
VEHICLE SPEED SENSOR (VSS)
P0505 (14) Idle Control System Malfunction
  • IAC valve
  • Throttle Body
IDLE CONTROL SYSTEM
P0700(4) and some of
P0715
P0720
P0730
P0740
P0753
P0758
(70)(2) Automatic Transaxle -- AUTOMATIC TRANSMISSION
P1106 (13) Barometric Pressure Circuit Range/Performance Problem
  • ECM/PCM (Baro sensor)
BAROMETRIC PRESSURE (BARO) SENSOR
P1107 (13) Barometric Pressure Circuit Low Input
  • ECM/PCM (Baro sensor)
BAROMETRIC PRESSURE (BARO) SENSOR
P1108 (13) Barometric Pressure Circuit High Input
  • ECM/PCM (Baro sensor)
BAROMETRIC PRESSURE (BARO) SENSOR
P1121 (7) Throttle Position Lower Than Expected
  • TP sensor
THROTTLE POSITION (TP) SENSOR
P1122 (7) Throttle Position Higher Than Expected
  • TP sensor
THROTTLE POSITION (TP) SENSOR
P1128 (5) Manifold Absolute Pressure Lower Than Expected
  • MAP sensor
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
P1129 (5) Manifold Absolute Pressure Higher Than Expected
  • MAP sensor
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
P1259 (22) VTEC System Malfunction
  • VTEC Solenoid Valve
  • Open or short in VTEC Solenoid Valve circuit
  • VTEC Pressure Switch
  • Open or short in VTEC Pressure Switch circuit
  • ECM/PCM
CYLINDER HEAD/VALVE TRAIN
P1300 or some of   Random Misfire
  • Ignition system
  • Fuel supply system
  • Contaminated fuel
  • Lack of fuel
RANDOM MISFIRE
P0301 (71)
P0302 (72)
P0303 (73)
P0304 (174)
P1336 (54) Crankshaft Speed Fluctuation Sensor Intermittent Interruption
  • CKF sensor
CRANKSHAFT SPEED FLUCTUATION (CKF) SENSOR
P1337 (54) Crankshaft Speed Fluctuation Sensor No Signal
  • CKF sensor
  • CKF sensor circuit
  • ECM/PCM
CRANKSHAFT SPEED FLUCTUATION (CKF) SENSOR
P1359 (8) Crankshaft Position/Top Dead Center Sensor Disconnected
  • CKP/TDC sensor circuit
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P1361 (8) Top Dead Center Sensor Intermittent Interruption
  • TDC sensor
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P1362 (8) Top Dead Center Sensor No Signal
  • TDC sensor
  • TDC sensor circuit
  • ECM/PCM
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P1381 (9) Cylinder Position Sensor Intermittent Interruption
  • CYP sensor
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P1382 (9) Cylinder Position Sensor No Signal
  • CYP sensor
  • CYP sensor circuit
  • ECM/PCM
CRANKSHAFT POSITION/TOP DEAD CENTER/CYLINDER POSITION (CKP/TDC/CYP) SENSOR
P1508(3) (14) Idle Air Control Valve Circuit Failure
  • IAC valve
  • IAC valve circuit
  • ECM
IDLE AIR CONTROL (IAC) VALVE (M/T)
P1509(4) (14) Idle Air Control Valve Circuit Failure
  • Open or short in IAC valve circuit
  • IAC valve
  • PCM
IDLE AIR CONTROL (IAC) VALVE (A/T)
P1607 (-) Engine Control Module/Powertrain Control Module Internal Circuit Failure A
  • ECM/PCM
ECM/PCM INTERNAL CIRCUIT
P1705
P1706
P1753
P1758
P1768
P1785
P1790
P1791
P1793
P1870
P1873
P1879
P1885
P1886
P1888
P1890
P1891
(70)(2) Automatic Transaxle - AUTOMATIC TRANSMISSION
(1) These DTCs will be indicated by the blinking of the Malfunction Indicator Lamp (MIL) with the SCS service connector connected.

(2) The [D4 ] indicator light and the Malfunction Indicator Lamp (MIL) may cone on simultaneously.

(3) M/T

(4) A/T