Scania EMS DTC 9729 Voltage supply

EMS Engine Management System · Scania · 4 variants

Code 9729 (decimal). Some diagnostic tools show it in hexadecimal as 2601.

In short

The voltage has been below the permitted level for one of the sensors which has a shared voltage supply.

Variant 1

Applies to: EMS S6EMS S6 (EMS S6 EuroIII)

What does Scania EMS fault code 9729 mean?

What causes Scania DTC 9729?

How does the system react?

How to fix Scania EMS fault code 9729?

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Variant 2: The coolant pump clutch V124

Applies to: EMS S8EMS S8 (S8PDE)

Variant 3

Applies to: EMS S6 IoM singlespeed (S6IM)

Variant 4: Coolant pump

Applies to: EMS S7

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

Code 9729 in other Scania systems

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