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Home >> Mazda >> 2022 >> CX-5 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (On-Board Diagnostic - Engine Control System (VIN Y) (4 Of 7)) >> DTC P0442-00, P0455-00, P0456-00: Evaporative Gas Leakage >> Details On DTCs

Details On DTCs

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DTC P0442-00, P0455-00, P0456-00: (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION P0442-00:
  • Evaporative gas leakage (leakage amount: low)

P0455-00:
  • Evaporative gas leakage (leakage amount: large)

P0456-00:
  • Evaporative gas leakage (leakage amount: extremely low)
DETECTION CONDITION Determination conditions P0442-00:
  • Hole of 0.04 in (1.0 mm) or more in evaporative gas passage
P0455-00:
  • Hole of 0.09 in (2.25 mm) or more in evaporative gas passage
P0456-00:
  • Hole of 0.02 in (0.5 mm) or more in evaporative gas passage
Preconditions P0442-00:, P0455-00:
  • Period ignition is switched off before engine starts: 120 min or more
  • Engine coolant temperature at engine start: 2-43 °C {36-109 °F}(1)
  • Time elapsed from engine start: 6-90 min
  • Fuel level in fuel tank: 10-90%(1)
  • Desired ambient air temperature: 4.4-43.3 °C {40-109 °F}(1)
  • Barometric pressure: 72.23 kPa {0.7365 kgf/cm2 , 10.48 psi} or more(1)
  • Charging efficiency: 3-65%(1)
  • Vehicle speed: 64-144 km/h {40.0-89.4 mph}(1)

P0456-00:
  • Engine coolant temperature at engine start: 2-43 °C {36-109 °F}(1)
  • Intake air temperature at engine start: 7 °C {13 °F} or more higher than engine coolant temperature at engine start (1)
  • Time elapsed from engine start: 15-90 min
  • Fuel level in fuel tank: 10-90%(1)
  • Desired ambient air temperature: 5-37 °C {41-98 °F}(1)
  • Barometric pressure: 72.35 kPa {0.7378 kgf/cm2 , 10.49 psi} or more(1)
  • Battery voltage: above 10 V(1)
  • The following DTCs are not detected:
  • Fuel tank pressure sensor: P0451-00:, P0452-00:, P0453-00:
  • Purge solenoid valve: P0443-00:
  • CV solenoid valve: P0446-00:
  • EVAP monitor: P0442-00:, P0455-00:, P0457-00:, P144A-00:, P1450-00:
  • Fuel gauge sender unit: P0460-00:, P0461-00:, P0462-00:, P0463-00:
Malfunction determination period
  • 75 s period
Drive cycle
Self test type
  • CMDTC self test
Sensor used
  • Fuel tank pressure sensor
FAIL-SAFE FUNCTION
  • Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • Illuminates check engine light.
  • Heating is ineffective after engine is started
POSSIBLE CAUSE
  • Missing or loose fuel filler cap
  • Fuel filler cap malfunction
  • Fuel tank pressure sensor malfunction
  • CV solenoid valve malfunction
  • Purge solenoid valve malfunction
  • Evaporative gas passage malfunction
    • Improper connection of evaporative hose
    • Evaporative hose damaged
  • Charcoal canister malfunction
  • Catch tank malfunction
  • Fuel pump unit loose
  • Fuel tank malfunction
  • PCM malfunction
(1) Standard can be verified by displaying PIDs using M-MDS