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) has detected that the DEF supply pump assembly pressure control is too high.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P20E9-00 |
DEF LINE PRESS DEF PUMP STATUS |
Diagnosis condition |
When the key switch is ON or the engine is running. |
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Signal (terminal) |
DEF pressure sensor |
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Threshold |
The DEF control module has detected the Diesel Exhaust Fluid (DEF) Pressure ≤ > 600 kPa (87 psi) for more than 20 seconds. |
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Diagnosis delay time |
- |
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