Scania EMS DTC 8704 Charge air pressure sensor

EMS Engine Management System · Scania · 5 variants

Code 8704 (decimal). Some diagnostic tools show it in hexadecimal as 2200.

In short

The NOx sensor is not responding in time.

Variant 1: T131, NOx sensor downstream of the particulate filter, not responding

Applies to: EMS10

What does Scania EMS fault code 8704 mean?

What causes Scania DTC 8704?

How to fix Scania EMS fault code 8704?

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Variant 2

Applies to: EMS S6 IoM singlespeed (S6IM)

Variant 3: SCR - NOx sensor after the catalytic converter

Applies to: EMS S6

Variant 4

Applies to: EMS S6 (EMS S6 EuroIII)

Variant 5: NOx sensor T115 downstream of the SCR catalytic converter measures too low a value.

Applies to: EMS S8

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

Code 8704 in other Scania systems

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