What does fault code ICM-1F33 mean?

Diagnostic fault code details for ICM-1F33 (Volvo XC90 (2003–)). Repair service at OBD Tuning.

VOLVO

ICM-1F33 - SELECTOR knob. Signal missing

System

Infotainment Control Module (ICM)

Volvo models this fault code applies to

Applies to the following models:

1 model

XC90 (2003–)

Show models by year and engine (1)

Volvo XC90 (2003–)2003–2015

What does this fault code mean?

The ICM reads the switches inside the SELECTOR knob. The fault code is set when a signal is missing from any one of the switches, and the knob then does not work.

Possible causes

One of the switches inside the SELECTOR knob is shorted to ground or has an open circuit
The switches have jammed

What you can do

1Turn and press the SELECTOR knob and see whether it produces a response in the infotainment system
2Read the code, clear it and check whether it returns after a test drive
3Check that the connectors to the SELECTOR knob are secure and free from corrosion
4If the knob cannot be turned or pressed freely, the switches may have jammed; have a workshop check this

Symptoms you may notice1

The SELECTOR knob does not work

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