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Home › Infiniti › 2017 › QX80 Base, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System (DTC/Circuit Diagnosis) (4 Of4) › DTC/Circuit Diagnosis › DTC P26A6, P26A7: Multi-Way Control Valve Position Sensor › DTC Logic › DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name
(Trouble diagnosis content)		 DTC detecting condition Possible Cause
P26A6 ENGINE COOLANT B/V A POSI SEN
(Engine coolant bypass valve A position sensor circuit low)		 ECM detects the following status continuously for 5 seconds or more:
A voltage signal transmitted from the multi-way control valve position sensor is 0.34 V or less.
  • Harness or connectors

    (Multi-way control valve position sensor circuit is open or shorted.)

  • Multi-way control valve position sensor
  • Sensor power supply 2
P26A7 ENGINE COOLANT B/V A POSI SEN
(Engine coolant bypass valve A position sensor circuit high)		 ECM detects the following status continuously for 5 seconds or more:
A voltage signal transmitted from the multi-way control valve position sensor is 4.76 V or more.
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