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HOMESERVICE MANUALSMAZDA2013MX-5 MIATA GRAND TOURING, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISSYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM LF 2.0L]NO. 2 MIL ILLUMINATES [LF]
2013 Mazda MX-5 Miata Grand Touring, Automatic Trans

No. 2 Mil Illuminates [LF]

2013 Mazda MX-5 Miata Grand Touring, Automatic TransSECTION No. 2 Mil Illuminates [LF]
2  MIL ILLUMINATES 
DESCRIPTION  The MIL is illuminated incorrectly.
POSSIBLE CAUSE 
  • The MIL illuminates for emission-related concern (OTC is stored in PCM)
  • Instrument cluster malfunction
    NOTE:
    • If the MIL blinks at steady rate, misfire condition could possibly exist
DIAGNOSTIC PROCEDURE

STEP INSPECTION RESULTS ACTION
1 Turn the ignition switch to the ON position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?		 Yes Go to the appropriate DTC inspection.
(See DTC TABLE [LF] ).
No Inspect the instrument cluster operation.
(See INSTRUMENT CLUSTER INSPECTION ).
2
  • Verify test results.
    • If normal, return to diagnostic index to service any additional symptoms.

      (See SYMPTOM DIAGNOSTIC INDEX [LF] ).

    • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If vehicle is repaired, troubleshooting completed.
      • If vehicle is not repaired or additional diagnostic information is not available, replace the PCM.

        (See PCM REMOVAL/INSTALLATION [LF] ).
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.