DTC Detection Logic
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
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DTC No.
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Trouble diagnosis name
(Trouble diagnosis content)
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DTC detecting condition
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Possible cause
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P1226
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CTP LEARNING-B1
(Closed throttle position learning performance)
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Closed throttle position learning is not performed successfully, repeatedly.
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Electric throttle control actuator
(TP sensor 1 and 2)
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