Hello, I'm trying to find out where the Can bus is located on my 2015 Jeep Wrangler Sahara unlimited. Thanks for any help.
wmigman
Joined
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208 Posts
As mentioned, for the JK the OBD2 port is under the left side of the dash.
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Keep in mind there are multiple CAN buses - The CAN C main twisted pair high-speed bus (most functions), the CAN IHS interior high-speed (radio), and the LIN interior low-speed single-wire bus (misc switches, monitoring, etc. A cheap ELM 327 OBD2 reader can generally only access modules connected to the CAN C bus, but that has all of the DTC fault codes.
The OBD2 port is fairly consistent in that location as many states and/ or counties (like Maricopa in Arizona) use this port for emissions testing.
The other port that is behind the dash is for the Security Gateway Module, but that only applies to 2018+ JLs and JTs.
Keep in mind there are multiple CAN buses - The CAN C main twisted pair high-speed bus (most functions), the CAN IHS interior high-speed (radio), and the LIN interior low-speed single-wire bus (misc switches, monitoring, etc. A cheap ELM 327 OBD2 reader can generally only access modules connected to the CAN C bus, but that has all of the DTC fault codes.
The OBD2 port is fairly consistent in that location as many states and/ or counties (like Maricopa in Arizona) use this port for emissions testing.
The other port that is behind the dash is for the Security Gateway Module, but that only applies to 2018+ JLs and JTs.
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