U019A

Lost Communication With Tachograph Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine Light Is On
The tachograph does not work or shows errors
It is impossible to read data from the tachograph
Intermittent tachograph operation

Causes

Broken or damaged wires in the communication circuit
Tachograph module malfunction
Problems with power supply to the tachograph module
Computer malfunctions
Software errors

How to Fix

Check the integrity of wiring and connectors
Check the power and ground of the tachograph module
Scan the system for other errors
Reflash or replace the tachograph module if necessary
Repair only from an authorized dealer

Related codes

U0198 U0199 U019B