DTC Detection Logic
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P2242 |
O2 sensor bank 2 sensor 1 (O2 sensor positive current control circuit high bank 2 sensor 1) |
A) |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 2.2 V |
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Diagnosis delay time |
-- |
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B) |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2 V |
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Diagnosis delay time |
-- |
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