VOLVO
ICM-1F29 - POWER button. Signal too high / low
System
Infotainment Control Module (ICM)
Volvo models this fault code applies to
Applies to the following models:
1 modelXC90 (2003–)
Show models by year and engine (1)
What does this fault code mean?
The ICM monitors the signal circuit for the POWER button. The fault code is set when the signal is too high or too low, and the POWER button may then stop responding.
Possible causes
- Short circuit to ground or open circuit in the left-hand keypad
- Short circuit to ground or open circuit in the wire to the keypad
What you can do
- 1Press the POWER button and see whether it produces a response
- 2Read the code, clear it and check whether it returns after a test drive
- 3Inspect the plugs for the left-hand keypad for oxidation, play and damage
- 4Use a multimeter to check that the wire to the keypad is not broken or in contact with ground; if no cause is found, a workshop can try a new keypad
Symptoms you may notice1
- The buttons on the left-hand keypad do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.