DTC Detection Logic
WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0444 |
PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit open) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
EVAP canister purge volume control solenoid valve signal |
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Threshold |
An excessively low voltage signal is sent to ECM through the valve |
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Diagnosis delay time |
-- |
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P0445 |
PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit shorted) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
EVAP canister purge volume control solenoid valve signal |
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Threshold |
An excessively high voltage signal is sent to ECM through the valve |
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Diagnosis delay time |
-- |
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