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DTC P0620: Generator Control Circuit: Notes

DTC P0620 CHART (MZI-3.7)

DTC P0620 Generator control circuit
DETECTION CONDITION 
  • The PCM reads the generator and sends a DTC through the network when the generator indicates a concern.
POSSIBLE CAUSE 
  • Drive belt misadjustment
  • Poor installation generator
  • Short to power supply between generator terminal LI and PCM terminal 1O
  • Short to ground between generator terminal LI and PCM terminal 1O
  • PCM connector or terminal malfunction
  • Open circuit between generator terminal LI and PCM terminal 1O
  • Poor installation battery positive terminal
  • Open circuit between generator terminal B and battery positive terminal
  • Generator malfunction
  • PCM malfunction
G00511587Courtesy of MAZDA MOTORS CORP.