DTC Detection Logic
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
The Engine Control Module (ECM) detected high voltage on the EGR Valve actuator.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0490-00 |
(Exhaust Gas Recirculation Control Circuit High) |
Diagnosis condition |
Ignition is ON or engine is running. |
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Signal (terminal) |
(-) |
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Threshold |
The current through the low side transistor is lower than the referenced current (1.5 mA to 1.0 mA) during PWM off-state. |
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Diagnosis delay time |
Diagnostic runs continuously when the engine is running |
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