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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Symptom Troubleshooting [Instrument Cluster (With Malfunction Warning Light)] >> No. 4 Mil Illuminates [Instrument Cluster (With Malfunction Warning Light)] >> Notes

No. 4 Mil Illuminates [Instrument Cluster (With Malfunction Warning Light)]: Notes

4 MIL illuminates
POSSIBLE CAUSE 
  • PCM malfunction
  • PCM stores DTC
  • Instrument cluster malfunction
  • Connector or pin malfunction
  • Short circuit in wiring harness between CAN-L, CAN-H and ground
  • Open circuit in CAN wiring harness (CAN-L, CAN-H)
  • CAN wiring harness (CAN-L, CAN-H) short each other