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Home >> Infiniti >> 2017 >> Q60 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (2.0L Turbo) (3 Of 6) >> DTC/Circuit Diagnosis >> DTC P0451: Fuel Pressure Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC CONSULT Screen Terms DTC Detecting Condition
(Trouble Diagnosis Content) [Malfunction Type]
P0451 00 EVAP system pressure sensor/sw
(EVAP System Pressure Sensor/Switch Circuit Range/Performance)
NO SUBTYPE INFORMATION Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction.
Diagnosis delay time -
09 COMPONENT MALFUNCTION Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. There is a component malfunction.
Diagnosis delay time -
16 CIRC VOLT BELOW THRESHOLD Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The limit value for electrical voltage has not been attained.
Diagnosis delay time -
17 CIRC VOLT ABOVE THRESHOLD Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The limit value for electrical voltage has been exceeded.
Diagnosis delay time -
24 SIGNAL STUCK HIGH Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. No signal change: Voltage level is too high.
Diagnosis delay time -
26 SIG RTE OF CHNG BLW THRESHLD Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The signal change rate is below the permissible limit value.
Diagnosis delay time -
28 SG BS LVL O-OF RNG/ZR AJST ERR Diagnosis condition -
Signal (terminal) -
Threshold The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The signal offset is outside the permissible range.
Diagnosis delay time -