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 the lift pump driver circuit is shorted high or open when commanded on.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0629-00 |
FUEL_PUMP/CIRC (Fuel Pump "A" Control Circuit High) |
Diagnosis condition |
Ignition switch is turned ON. |
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Signal (terminal) |
(-) |
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Threshold |
Fuel lift pump driver voltage < 5V |
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Diagnosis delay time |
Diagnostic runs continuously when the engine is running |
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