LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P20EE-00: SCR NOX Catalyst Efficiency >> DTC Description >> DTC Detection Logic

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 system has detected a decrease of the NOx converting catalyst's conversion capability resulting in tailpipe out NOx emissions exceeding the applicable threshold.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P20EE-00

INTAKE NOX

INTAKE NOX CORRCTD

INTAKE NOX READING STBL

OUTLET NOX

OUTLET NOX CORRCTD

OUTLET NOX READING STBL

Diagnosis condition

This diagnostic has to meet specific engine and after treatment conditions to run and complete (pattern 3 four times).

Signal (terminal)

NOx sensor signal.

Threshold

Amplified catalyst in-efficiency (ACIE) Where: ACIE is the SCR catalyst inefficiency amplified using the ammonia to NOx ratio ≥ 40 (unitless).

Diagnosis delay time

-