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Home >> Mazda >> 2011 >> 2 Touring, 1.5 Z, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System MZR 1.5] >> DTC P2185:00 >> Notes

DTC P2185:00: Notes

DTC P2185:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2185:00 ECT sensor No. 2 circuit high input
DETECTION CONDITION 
  • The PCM monitors the ECT sensor No. 2 signal. If the PCM detects that the ECT sensor No. 2 voltage is above 4.92 V  for 5 s  , the PCM determines that the ECT sensor No. 2 circuit has a malfunction.

    Diagnostic support note 

  • This is a continuous monitor (engine cooling system).
  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor No. 2 connector or terminals malfunction
  • ECT sensor No. 2 malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between ECT sensor No. 2 terminal A and PCM terminal 1Y
  • Open circuit in wiring harness between the following terminals:
    • ECT sensor No. 2 terminal A-PCM terminal 1Y
    • ECT sensor No. 2 terminal B-PCM terminal 1U
  • PCM malfunction
G06940418