Section 30 (Engine Controls - Self-Diagnostics - 2.5L)
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Notes
- On-Board Diagnostics
- Retrieving Diagnostic Trouble Codes
- DTC Confirmation Procedure
- Malfunction Indicator Light (Mil) Stays On
- Freeze Frame Data
- Parameter Identification (PID)
- On-Board System Readiness (OSR) Test Mode
- Output Test Mode
- Drive Modes
- Clearing Diagnostic Trouble Codes
- Powertrain Control Module Location
- Test Equipment
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0068: TP Sensor Inconsistent With MAF Sensor
- DTC P0102: MAF Sensor Circuit Low Input
- DTC P0103: MAF Sensor Circuit High Input
- DTC P0106: BARO Sensor Circuit Performance Problem
- DTC P0107: BARO Sensor Circuit Low Input
- DTC P0108: BARO Sensor Circuit High Input
- DTC P0112: IAT Sensor Circuit Low Input
- DTC P0113: IAT Sensor Circuit High Input
- DTC P0116: ECT Sensor Circuit Performance Problem
- DTC P0117: ECT Sensor Circuit Low Input
- DTC P0118: ECT Sensor Circuit High Input
- DTC P0122: TP Sensor Low Input
- DTC P0123: TP Sensor High Input
- DTC P0125: Excessive Time To Enter Closed Loop Fuel Control
- DTC P0133 & P0153: Front Ho2S Circuit Slow Response
- DTC P0135: Right Front Ho2S Heater Circuit Malfunction
- DTC P0136, P1137 Or P1138: Right Rear Ho2S Circuit Malfunction
- DTC P0141: Right Rear Ho2S Heater Circuit Malfunction
- DTC P0155: Left Front Ho2S Heater Circuit Malfunction
- DTC P0156, P1157 Or P1158: Ho2S Circuit Malfunction
- DTC P0161: Left Rear Ho2S Heater Circuit Malfunction
- DTC P0171, P0172, P0174 Or P0175: Fuel Trim System & DTC P1130, P1131, P1132, P1150, P1151 Or P1152: Ho2S Not Switching
- DTC P0230: Fuel Pump Primary Circuit Malfunction
- DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306 Or P0316: Misfire Detection Monitor
- DTC P0320: CKP Sensor Circuit Malfunction
- DTC P0325: KS Circuit Malfunction
- DTC P0340: CMP Sensor Circuit Malfunction
- DTC P0400: EGR Flow Malfunction
- DTC P0403: EGR Valve Control Circuit Malfunction
- DTC P0421 & P0431: Catalyst Warm-Up Efficiency Below Threshold
- DTC P0442: EVAP Control System Small Leak
- DTC P0443: EVAP Control System Purge Control Valve Circuit Malfunction
- DTC P0446: EVAP Control System Vent Control Malfunction
- DTC P0452: EVAP Control System Fuel Tank Pressure Sensor Low Input
- DTC P0453: EVAP Control System Fuel Tank Pressure Sensor High Input
- DTC P0455: EVAP Control System Large Leak Detected
- DTC P0460: Fuel Gauge Sender Unit Circuit Malfunction
- DTC P0461: Fuel Gauge Sender Unit Circuit Performance Problem
- DTC P0480: Cooling Fan Control Circuit Malfunction
- DTC P0481: Condenser Fan Control Circuit Malfunction
- DTC P0500: VSS Circuit Malfunction & DTC P1501: VSS Signal Out Of Self-Test Range
- DTC P0505: IAC System Malfunction
- DTC P0506: Idle Control System Rpm Less Than Expected
- DTC P0507: Idle Control System Rpm Greater Than Expected
- DTC P0511: IAC Valve Circuit Malfunction
- DTC P0603 & P0605: Pcm Memory Error
- DTC P0703: Brake Switch Input Malfunction & DTC P1703: Brake Switch Circuit Out Of Self-Test Range
- DTC P0704: Clutch Switch Input Circuit Malfunction
- DTC P0850: Neutral Switch Input Circuit Malfunction
- DTC P1001: Data Link Connector (DLC) Malfunction
- DTC P1100: MAF Sensor Intermittent Malfunction
- DTC P1101: MAF Sensor Out Of Self-Test Range
- DTC P1112: IAT Sensor Intermittent Malfunction
- DTC P1116: ECT Sensor Out Of Self-Test Range
- DTC P1117: ECT Sensor Intermittent Malfunction
- DTC P1120: TP Sensor Out Of Range (Low)
- DTC P1124: TP Sensor Out Of Self-Test Range
- DTC P1125: TP Sensor Intermittent Problem
- DTC P1127: Exhaust Not Warm Enough
- DTC P1250: Fuel PRC Solenoid Valve Circuit Malfunction
- DTC P1410: EGR Boost Sensor Solenoid Valve Stuck
- DTC P1450: EVAP Control System Malfunction (Excessive Vacuum)
- DTC P1451: CDCV Circuit Malfunction
- DTC P1460: Wot A/C Control Circuit Malfunction & DTC P1464: A/C Demand Out Of Self-Test Range
- DTC P1487: EGR Boost Sensor Solenoid Valve Circuit Malfunction
- DTC P1521: VRIS Solenoid Valve No. 1 Circuit Malfunction
- DTC P1522: VRIS Solenoid Valve No. 2 Circuit Malfunction
- DTC P1602: Immobilizer Unit-Pcm Communication Error
- DTC P1603: Code Word Not Registered In Pcm
- DTC P1604: Key Id Number Not Registered In Pcm
- DTC P1621: Code Word Does Not Match After Engine Cranking
- DTC P1622: Key Id Number Does Not Match
- DTC P1623: Code Word Or Key Id Number Read/Write Error In Pcm
- P1624: Immobilizer System Communication Counter = Zero
- DTC P1633: Pcm KAM Voltage Low
- DTC P1650: PSP Switch Out Of Self-Test Range
- DTC P1652: PSP Switch Failed On
- Reference Voltage Test