DTC Detection Logic
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
An excessively low voltage from the sensor is sent to ECM.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P1451 |
TC/SC PRES-EVAP PRES (EVAP control system pressure sensor/turbocharger boost sensor correlation) |
Diagnosis condition |
Ignition switch ON |
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Signal (terminal) |
EVAP control system pressure sensor signal |
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Threshold |
ECM detects a state that the pressure difference remains the threshold value or more for continuously for 5 seconds or more under the condition that the pressure of the EVAP control system pressure sensor and that of the turbocharger boost sensor are equal. |
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Diagnosis delay time |
3 seconds or more |
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