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Home >> Mazda >> 2022 >> CX-5 Turbo Signature >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (On-Board Diagnostic - Engine Control System (VIN M) (2 Of 7)) >> DTC P0116-00: ECT Sensor No. 1 Circuit Range/Performance Problem >> Details On DTCs

Details On DTCs

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DTC P0116-00: (PCM, VIN M) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION ECT sensor No. 1 circuit range/performance problem
DETECTION CONDITION Determination conditions
  • During the 7 min after the engine is started, the engine coolant temperature does not increase above 3 °C {5 °F}.
Preconditions
  • Before starting the engine, leave the vehicle with the engine turned off for 6 h or more.
  • The following DTCs are not detected:
    • ECT sensor No. 1: P0117-00:, P0118-00:
Drive cycle
Self test type
  • CMDTC self test
Sensor used
  • ECT sensor No. 1
FAIL-SAFE FUNCTION
  • Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • The check engine light may be illuminated depending on the condition.
POSSIBLE CAUSE
  • ECT sensor No. 1 connector or terminals malfunction
  • PCM connector or terminals malfunction
  • ECT sensor No. 1 loose
  • ECT sensor No. 1 malfunction
  • Poor assembly of engine coolant hose (engine coolant passage malfunction)
  • Poor engine coolant, leakage, or freezing
  • Use of unspecified engine coolant
  • Coolant control valve malfunction
  • PCM malfunction