Headlights go on and off randomly during day.

Post by **RickHaleParker** » 24 Jan 2018, 02:18

The circuit board is integrated into the switch/stalk assembly down in where the harness plugs in.

Steering Wheel Module (SWM), it is 3/254 in the wiring diagrams for the XC90.

jpeter · Post by **jpeter** » 07 Apr 2018, 01:55

Sold off the car

jpeter · Post by **jpeter** » 07 Apr 2018, 01:57

Issue unresolved, got rid of the car.

Post by **cn90** » 07 Apr 2018, 10:02

- Getting rid of the car certainly solves the problem LOL...

- However, for those reading this thread, google "volvo XC90 headlight module chip" and start reading...

Post by **oragex** » 09 Apr 2018, 15:00

jpeter wrote: 21 Jan 2018, 21:42 I am getting angry stares from others due to this stupid inadvertent flashing. Sheesh!!

That is (was) certainly uncomfortable. For the rest of the users, the headlight switch unit sometimes known to go bad, as mentioned above. Mine was acting a little with the small led getting dim when pushing down on the knob

Post by **abscate** » 10 Apr 2018, 04:14

Excellent video with the small details that you need for a job like this

Edited title for search