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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 P2123 >> Notes
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DTC P2123: Notes

DTC P2123 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2123 APP sensor No.1 circuit high input
DETECTION CONDITION 
  • APP sensor No.1 is out of self-test range high.
POSSIBLE CAUSE 
  • Open circuit wiring harness between APP sensor terminal F and PCM terminal 1BA
  • Open circuit wiring harness between APP sensor terminal D and PCM terminal 1Y
  • Open circuit wiring harness between APP sensor terminal G and PCM terminal 1AD
  • Open circuit wiring harness between APP sensor terminal C and PCM terminal 1AH
  • Open circuit wiring harness between APP sensor terminal E and PCM terminal 1AK
  • Short to power supply in wiring harness between APP sensor terminal F and PCM terminal 1BA
  • Short to power supply in wiring harness between APP sensor terminal D and PCM terminal 1Y
  • Short to power supply in wiring harness between APP sensor terminal G and PCM terminal 1AD
  • Short to power supply in wiring harness between APP sensor terminal C and PCM terminal 1AH
  • Short to power supply in wiring harness between APP sensor terminal E and PCM terminal 1AK
  • Connector or terminal malfunction
  • APP sensor malfunction
G04969318Courtesy of MAZDA MOTORS CORP.
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