Scania AMS DTC 5664 Reductant pick-up unit T116/T4002

AMS AMS control unit · Scania · 2 variants

Code 5664 (decimal). Some diagnostic tools show it in hexadecimal as 1620.

In short

Fault in the voltage supply to the reductant pick-up unit.

Variant 1

Applies to: AMS1

What does Scania AMS fault code 5664 mean?

What causes Scania DTC 5664?

How does the system react?

How to fix Scania AMS fault code 5664?

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Variant 2: Reductant pick-up unit T116/T4002, short circuit to earth

Applies to: AMS2

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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