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Home >> Mazda >> 2007 >> CX-9 Touring, 3.5 C, AWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System MZI-3.5) >> DTC P0579 >> Notes
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DTC P0579: Notes

DTC P0579 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0579 Cruise control multi-function input circuit range/performance
DETECTION CONDITION 
  • P0579 may set when the cruise control switch circuits are open, shorted to voltage or ground.
POSSIBLE CAUSE 
  • Connector or terminal malfunction
  • Open circuit between cruise control switch terminal B and PCM terminal 1AT
  • Open circuit between cruise control switch terminal C and PCM terminal 1 AP
  • Short to power supply between cruise control switch terminal B and PCM terminal 1AT
  • Short to power supply between cruise control switch terminal C and PCM terminal 1AP
  • Short to ground circuit between cruise control switch terminal B and PCM terminal 1AT
  • Short to ground circuit between cruise control switch terminal C and PCM terminal 1AP
  • Cruise control switch malfunction
  • PCM malfunction
G04969292Courtesy of MAZDA MOTORS CORP.
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