Volvo Troubleshooting Questions? Ask a Mechanic for Answers ASAP
What is your problem ? You can't use a used module reason is vin numbers will not match and will fail you can't swap modules from car to car if you like you can fix your old but to fix correct it cost around $700 if you still have original module .but if you don't have old original you must buy new .
do you need more help ?