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Home >> Mazda >> 2015 >> CX-5 Touring, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Symptom Troubleshooting [Engine Control System]) >> No.2 Check Engine Light Illuminates >> Notes

No.2 Check Engine Light Illuminates: Notes

WARNING: This page is about a different car, the 2013 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
DESCRIPTION & POSSIBLE CAUSE

2  CHECK ENGINE LIGHT ILLUMINATES 
DESCRIPTION 
  • Check engine light illuminates incorrectly.
POSSIBLE CAUSE 
  • Check engine light illuminates for emission-related concern (DTC is stored in PCM)
  • Short to ground in wiring harness between the following terminals:
    • Instrument cluster terminal B-PCM terminal 2AK
    • Instrument cluster terminal D-PCM terminal 2AL
  • Open circuit in wiring harness between the following terminals:
    • Instrument cluster terminal B-PCM terminal 2AK
    • Instrument cluster terminal D-PCM terminal 2AL
  • Instrument cluster malfunction
    NOTE:
    • If check engine light blinks at a steady rate, a misfire condition could possibly exist.
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