LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 1996 >> 626 DX, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L A/T >> Diagnostic Trouble Code Identification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Identification

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC DTC Definition
P0102  MAF Sensor Circuit Low Input
P0103  MAF Sensor Circuit High Input
P0106  EGR/BARO Sensor Input Signal Out Of Self-Test Range
P0107  EGR/BARO Sensor Input Signal Less Than Self-Test Minimum
P0108  EGR/BARO Sensor Input Signal Greater Than Self-Test Maximum
P0112  KOEO & KOER - IAT Sensor Circuit Low Input
P0112  Continuous Memory Code - IAT Sensor Circuit Low Input
P0113  Continuous Memory Code - IAT Sensor Circuit High Input
P0113  KOEO & KOER - IAT Sensor Circuit High Input
P0117  KOEO & KOER - ECT Sensor Circuit Low Input
P0117  Continuous Memory Code - ECT Sensor Circuit Low Input
P0118  Continuous Memory Code - ECT Sensor Circuit High Input
P0118  KOEO & KOER - ECT Sensor Circuit High Input
P0121  TP Sensor In-Range Operating Circuit Failure
P0122  TP Sensor Circuit Low Input
P0123  TP Sensor Circuit High Input
P0125  ECT Sensor Insufficient Coolant Temperature To Enter A Closed Loop Fuel Control
P0131  Upstream HO2S Circuit Out Of Range Low Voltage
P0133  Upstream HO2S Circuit Low Response
P0135  Upstream HO2S Heater Circuit Malfunction
P0136  Downstream HO2S Circuit Malfunction
P0141  Downstream HO2S Heater Circuit Malfunction
P0171  Adaptive Fuel Control System Too Lean
P0172  Adaptive Fuel Control System Too Rich
P0230  Fuel Pump Circuit Malfunction
P0300  Ignition Random Misfire Detected
P0301  Ignition Cylinder No. 1 Misfire Detected
P0302  Ignition Cylinder No. 2 Misfire Detected
P0303  Ignition Cylinder No. 3 Misfire Detected
P0304  Ignition Cylinder No. 4 Misfire Detected
P0320 (1) Ignition Engine Speed Input Circuit Malfunction
P0340  CMP Sensor Circuit Malfunction
P0400  EGR Flow Malfunction
P0420  Catalyst System Efficiency Below Threshold
P0421  Catalyst Efficiency
P0440  EVAP Control System Purge Control Malfunction
P0443  EVAP Control System Purge Control Solenoid/Valve Circuit Malfunction
P0500  VSS Malfunction
P0505  IAC System Malfunction
P0603  PCM KAM Test Error
P0605 (2) PCM ROM Test Error
P0703  BOO Switch Input Malfunction
P1000  OBD-II Drive Cycle OBD-II Monitor Testing Not Complete
P1001 (1) Activate Self-Test Standard Corporate Protocol (SCP) Communication Error
P1100  MAF Sensor Intermittent
P1101  MAF Sensor Out Of Self-Test Range
P1112  IAT Sensor Intermittent
P1116  ECT Sensor Out Of Self-Test Range
P1117  ECT Sensor Intermittent
P1120  TP Sensor Out Of Range Low
P1121  TP Sensor Inconsistent With MAF Sensor
P1124  TP Sensor Out Of Self-Test Range
P1125  TP Sensor Circuit Intermittent
P1127  HO2S Heater Exhaust System Too Cool
P1130  Upstream HO2S Lack Of Upstream HO2S Switch Adaptive Fuel At Limit
P1131  Upstream HO2S Lack Of Upstream HO2S Switch, Sensor Indicates Lean
P1132  Upstream HO2S Lack Of Upstream HO2S Switch, Sensor Indicates Rich
P1137  Downstream HO2S Lack Of Downstream HO2S Switch, Sensor Indicates Lean
P1138  Downstream HO2S Lack Of Downstream HO2S Switch, Sensor Indicates Rich
P1235  Fuel Pump Control Out Of Range
P1236  Fuel Pump Control Out Of Range
P1270  Over Reving Condition Engine RPM/Vehicle Speed Limiter Reached
P1351 (1) Ignition Diagnostic Monitor (IDM) Signal Out Of Self-Test Range
P1359 (1) Spark Output Circuit Malfunction
P1400  DPFE Sensor Circuit Low Voltage Detected
P1401  DPFE Sensor Circuit High Voltage Detected
P1407  EGR System No Flow Detected, Valve Stuck Closed/Inoperative
P1408  EGR System Flow Out Of Self-Test Range
P1460  KOEO & KOER - Wide Open Throttle Air Conditioning Cutoff Circuit Malfunction
P1460  Continuous Memory Code - Wide Open Throttle Air Conditioning Cutoff Circuit Malfunction
P1474  Fan Control System Fan Control Primary Circuit Malfunction
P1500  VSS Circuit Intermittent
P1504  IAC System Circuit Intermittent
P1505  IAC System At Adaptive Clip
P1506  IAC System Overspeed Error
P1507  IAC System Underspeed Error
P1605  (2) PCM KAM Test Error
P1650  PSP Switch Out Of Self-Test Range
P1651  PSP Switch Input Malfunction
P1703  BOO Switch Out Of Self-Test Range
(1) Diagnostic trouble code chart is not available from manufacturer.
(2) If this DTC is set, replace PCM.