Scania EMS DTC 49959 Immobiliser, locked validation key

EMS Engine Management System · Scania

Code 49959 (decimal). Some diagnostic tools show it in hexadecimal as 00C327.

In short

The validation key for the immobiliser is locked.

Applies to: EMS10

What does Scania EMS fault code 49959 mean?

What causes Scania DTC 49959?

How to fix Scania EMS fault code 49959?

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.