dead fob chirp
dead alarm sound
dead horn button or all 3? must we guess?
double posted and still no clear symptoms
last post said only broken word, then now not working.
is horn dead? I push the horn button and my horn is silent.?
If you scan the PCM with any scan tool there are 5 horn errors.
we use this amazing device called a voltmeter to find bad horns.
but most folks today never hear of one... so.... ask guess'ers to guess.
that it it?
Dead horn 101: (generic)
check fuses first,scan pcm for errors, 2nd, after all it may know why?horn is bad.wiring to horn bad.bad horn relay (there is none ) "has electronic drivers "BCM bad./PCM (or MTIP)horn switch bad.horn connections in steering coil spring bad.
the car has 2 horns.
so both most likely not bad.
the horn operates via 2 computer brains
THE TIPM ACUTALLY honks the horn,
the pcm sees you push the button(digital inputs)
and the PCM then sends a can-buss communication to the
TIPM brain under hood. (aka, MTIP)
the TIPM then honks the 2 horns.
Module totally integrated power , drives the horns.
why not scan it first
or get car serviced.?????
if not, its hopeless. (sure check horn grounds for rust)
or lacking how not to get injured playing with AIR BAD parts.
RTM first, jeep FSM book , factory service manual and see page on horn and use the advice on page to not get hurt.
a driver is magic electronic device that replaces relays
some call them electronic relays,
but can be just power transistors on the motherboard
of the MTIP, (non user replaceable inside)
cars are catching up to industry finally.