MK49 jeep 2010. usa answers me...
well buy the service manual or rent it
https://eautorepair.net/Marketing/Default.asp
there is no secrets here on this topic at all
just the lack of no book in hands or PDF
is this car USA spec car? not told country of VIN
so all I can do is tell you how OURS works,
for sure this simple thing (well is not simple like in 1990 and before) (alarms added and more)
not scanning the PCM first is failure #1
the MK49
the TIPM Tipm the SM shows a relay deep inside TIPM for horn ,but is vague o n location.
under hood,
totally integrated power module.
has 3 honk paths or more.
here is the path horn fully.(path1 horn button)
horn button pressed or switch here bad.
goes to clock spring (not bad)
then to cluster brain,(honk commands)
to TIPM brain, via fuse F28 there.
and TIPM DRIVES THE HORN directly.
or an alarm trips the horn. visa CAN_bus network commands, and again not scanning , the obd2 port you will never learn why it fails.
chirp mode (keyfob decoder), alarm or the horn button fails. 1,2,3,
3 ways to fail, and more.
not scanning the OBD2 PCM port is why you do not
now what is wrong.
B2336???? 2339 horn switch stuck DTC> amazing no?
com fails if any kind (DTC)
the horn also has chirp logic (disable it is wise)
"Using a transmitter programmed to the Sentry Key Remote Entry Module, the status of the horn chirp may be toggled by the customer."
or the alarms on the car is failing and sending horn honk commands via Can-bus network; Unnnn codes?
CAN_BUS B and C must be error free (or LIN bus)
no alarms , no chirp mode junk enabled.
here is no internal schematics of the TIPM at all
so how it directly drives the horn is not shown.
scan it first. not last. or go broke fast. guessing wrong.
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