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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 P1001 >> Notes
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DTC P1001: Notes

DTC P1001 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P1001 KOER not able to complete, KOER aborted
DETECTION CONDITION 
  • P1001 indicates any of the following
  • Unable to access Continuous Memory DTCs.
  • Unable to activate KOEO or KOER Self-Test.
  • M-MDS tester communication problem.
  • DTC displayed by M-MDS tester not listed.
  • KOER Self-Test cannot be completed.
POSSIBLE CAUSE 
  • Damaged DLC-2.
  • Incorrect Self-Test procedure.
  • VREF is not in specification.
  • Idle RPM out of specification.
  • Open in DLC-2 wiring harness circuit.
  • Short in DLC-2 circuit or associated modules.
  • Damaged PCM power relay circuit