Scania ALLISON DTC 1623 Supply voltage to actuator interrupted

ALLISON Allison automatic gearbox · Scania

Code 1623 (decimal). Some diagnostic tools show it in hexadecimal as 0657.

In short

Contact an Allison dealer.

Applies to: A4

What does Scania ALLISON fault code 1623 mean?

How does the system react?

How to fix Scania ALLISON fault code 1623?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

Full explanations of every code and brand
Causes, symptoms and repair steps
New brands and codes included

Get Premium – 7,50 € / month I already have an account

Yearly plan: pay 10 months, get 12. Cancel at any time.

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