As with all elect. fails check all fuses in this case the 15 amp fuse marked, HORN can i presume all else works good> car drives.? all answers, USA spec car. nobody ever tells location, so..... if not USA< all answers wrong. the usa car has just 1 horn..... got voltage to horn? 12v Yes or no.? if yes horn bad. got voltage from horn relay yes, bad wires.from, relay to horn no, got voltage 12v to horn relay coil, yes, good, no bad fuse. got 0v to other relay coil (all tests honking) yes, bad relay. no, bad horns switch.
if you want me to guess. sure. 1: bad wires ../connections, end to end. 2 bad horn 3: bad relay 4: bad horn switch.
Answers & Comments
As with all elect. fails check all fuses
in this case the 15 amp fuse marked, HORN
can i presume all else works good> car drives.?
all answers, USA spec car. nobody ever tells location, so..... if not USA< all answers wrong. the usa car has just 1 horn.....
got voltage to horn? 12v
Yes or no.?
if yes horn bad.
got voltage from horn relay
yes, bad wires.from, relay to horn
no, got voltage 12v to horn relay coil,
yes, good, no bad fuse.
got 0v to other relay coil (all tests honking)
yes, bad relay.
no, bad horns switch.
if you want me to guess. sure.
1: bad wires ../connections, end to end.
2 bad horn
3: bad relay
4: bad horn switch.