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Engine Controls - Tests W/codes: Overview Mazda MX-5 NA

Testing & Diagnostics 8 illustrations

TROUBLE CODE IDENTIFICATION

Note. See PIN VOLTAGE CHART S article to identify ECU connector terminals.

Scheme 10

Scheme 10: TROUBLE CODE IDENTIFICATION

TROUBLE CODE IDENTIFICATION TABLE

DTCDescription
CODE 1Ignition Signal
CODE 2NE Signal - Crank Angle
CODE 3G Signal - Crank Angle
CODE 8Airflow Meter
CODE 9Coolant Thermosensor
CODE 10Intake Air Thermosensor
CODE 12Throttle Sensor - A/T
CODE 14Atmospheric Pressure Sensor
CODE 15Oxygen Sensor
CODE 17Feedback System
CODE 26Purge Control Solenoid Valve
CODE 34Idle Speed Control

TROUBLE CODE IDENTIFICATION

Scheme 11

Scheme 11: CODE 1: (IGNITION SIGNAL)

Scheme 12

Scheme 12: CODE 2: (NE SIGNAL - CRANK ANGLE)

Scheme 13

Scheme 13: CODE 3: (G SIGNAL - CRANK ANGLE)

Scheme 14

Scheme 14: CODE 8: (AIRFLOW METER)

Scheme 15

Scheme 15: CODE 9: (COOLANT THERMOSENSOR)

Scheme 16

Scheme 16: CODE 10: (INTAKE AIR THERMOSENSOR)

Scheme 17

Scheme 17: CODE 12: (THROTTLE SENSOR - A/T)