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 diagnostic checks whether the DEF supply pump assembly injector valve is mechanically stuck closed or mechanically stuck open based on the minimum pressure variation observed during On/ Off cycle at each injection period for 2 trips.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P202E-00 |
DEF DOSING VALVE POS CMP |
Diagnosis condition |
This diagnostic runs when the DEF dosing valve is being commanded ON. Diagnostic tests are performed 5 minutes apart. |
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Signal (terminal) |
DEF dosing valve signal |
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Threshold |
When Maximum DEF Supply Pressure - Minimum DEF Supply Pressure within one injection cycle is < 15 kPa (gauge) for greater than or equal to 2 out of 3 times within each set of diagnostic tests. |
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Diagnosis delay time |
- |
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