Scania EMO DTC 4173 Exhaust gas temperature sensor upstream of SCR catalytic converter T113

EMO EMO control unit · Scania

Code 4173 (decimal). Some diagnostic tools show it in hexadecimal as 104D.

In short

Exhaust gas temperature sensors before the SCR catalyst (T158) signal is not plausible.

Applies to: EMO2 (EMS)

What does Scania EMO fault code 4173 mean?

What causes Scania DTC 4173?

What are the symptoms?

How to fix Scania EMO fault code 4173?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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