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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (4 Of 6)) >> DTC/Circuit Diagnosis >> DTC P1C54-00: SCR NOX Catalyst Missing >> 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 ECM detected the NOx conversion efficiency of the SCR catalyst was critically low.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1C54-00

SCR NOx Catalyst Missing

(Aftertreatment 1 SCR catalyst system missing - condition exists)

Diagnosis condition

Continuously when key is ON, or engine is running

Signal (terminal)

-

Threshold

-

Diagnosis delay time

Diagnostic runs continuously when the engine is running