OCS 1638912 Scania Spark plug A4 for cylinder 1

OCS OCS control unit · Scania

Code 1638912 (decimal). Some diagnostic tools show it in hexadecimal as 190200.

In short

Implausible ionic current value after combustion.

Applies to: OCS1

What does Scania OCS fault code 1638912 mean?

What causes Scania DTC 1638912?

How does the system react?

What are the symptoms?

How to fix Scania OCS fault code 1638912?

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.