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DTC P0328 00: KS Circuit High Input: Notes

DTC P0328 00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

DTC P0328:00  KS circuit high input 
DETECTION CONDITION 
  • The PCM monitors input signal from the KS. If the input voltage is high for 5 s  , the PCM determines that the KS circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION 
  • Sets the knocking spark retard correction value of the ignition control to the fixed value.
POSSIBLE CAUSE 
  • KS connector or terminals malfunction
  • KS malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between the following terminals:
    • KS terminal A-PCM terminal 1H
    • KS terminal B-PCM terminal 1D
  • KS circuits are shorted to each other
  • Open circuit in wiring harness between the following terminals:
    • KS terminal A-PCM terminal 1H
    • KS terminal B-PCM terminal 1D
  • PCM malfunction
G09794686Courtesy of MAZDA MOTORS CORP.