Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2017 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (2 Of 5) >> DTC P06DB-00; Engine Oil Solenoid Valve Circuit Low Input >> Notes

DTC P06DB-00; Engine Oil Solenoid Valve Circuit Low Input: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P06DB:00 Engine oil solenoid valve circuit low input
DETECTION CONDITION
  • If the PCM detects that the engine oil solenoid valve control voltage at the PCM terminal 1BM is specified value or less for 2 s with the following condition met, the PCM determines that the engine oil solenoid valve circuit voltage is low.

    MONITORING CONDITIONS

    • Battery voltage: 8 V or more
    • 0.5 s have elapsed after the ignition was switched ON (engine off or on)
      • Engine oil solenoid valve control duty value: 94% or less Diagnostic support note
  • This is a continuous monitor (CCM).
  • The check engine light does not illuminate.
  • FREEZE FRAME DATA is not available.
  • Snapshot data is available.
  • DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
  • Restricts the upper limit of the engine speed.
  • Restricts engine load.
POSSIBLE CAUSE
  • Engine oil solenoid valve connector or terminals malfunction
  • Short to ground or open circuit in engine oil solenoid valve power supply circuit
    • Short to ground in wiring harness between ENGINE3 15 A fuse and engine oil solenoid valve terminal A
    • ENGINE3 15 A fuse malfunction
      • Open circuit in wiring harness between main relay terminal C and engine oil solenoid valve terminal A
  • Short to ground in wiring harness between engine oil solenoid valve terminal B and PCM terminal 1BM
  • PCM connector or terminals malfunction
  • Open circuit in wiring harness between engine oil solenoid valve terminal B and PCM terminal 1BM
  • Engine oil solenoid valve malfunction
  • PCM malfunction
G11433279