Try to search something different in this manual:
check transmission fluid, fuses, cruise control, tire pressure reset, carplay, low beam, radio, auxiliary battery
Or view whole manual here:
View, print and download for free: horn - VOLVO 400 1991 Service Repair Manual, 178 Pages, PDF Size: 22.84 MB. Search in VOLVO 400 1991 Service Repair Manual online. CarManualsOnline.info is the largest online database of car user manuals. VOLVO 400 1991 Service Repair Manual PDF Download.
All product names, logos, and brands are property of their respective owners.