What does fault code MMM-1020 mean?

Diagnostic fault code details for MMM-1020 (Volvo C30 (2007–2013), Volvo C30 Electric (2011–2013), Volvo C70 (2006–2013)). Repair service at OBD Tuning.

VOLVO

MMM-1020 - Control module. Internal fault

System

Multi Media Module (MMM)

Volvo models this fault code applies to

Applies to the following models:

6 models

C30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)

Show models by year and engine (6)

What does this fault code mean?

The code concerns the multimedia module (MMM), which checks its internal components at start-up. It is set when written and read data do not agree inside the module. The cause is a damaged multimedia module.

Possible causes

Damaged multimedia module (MMM)

What you can do

1Read the codes after restarting the car to see whether the MMM fault is still present
2Test the navigation and the other functions of the multimedia system
3If the fault is still present, have a workshop replace the multimedia module (MMM)

Symptoms you may notice1

Navigation does not work

General guidance for car owners. Diagnosis on the car can point to a different cause.