Scania ALM DTC 329 Micro switch roof hatch (truck)/micro switch B2 (bus), short circuit

ALM ALM control unit · Scania

Code 329 (decimal). Some diagnostic tools show it in hexadecimal as 0149.

In short

The micro switch is short-circuited to earth.

Applies to: ALM1 (ALM)

What does Scania ALM fault code 329 mean?

What causes Scania DTC 329?

How does the system react?

What are the symptoms?

How to fix Scania ALM fault code 329?

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

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.

Code 329 in other Scania systems

Compare code 329 in every system →