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June 2013
Electrical Systems Operation & Diagnosis Module (602)
CAN Bus B or KAC
CAN Bus B or KAC
Keyless Access and Push Button Start vehicles are equipped with a second High speed CAN.
The name for this new High Speed CAN will be High Speed CAN Bus B or KAC.
This circuit is isolated from the Main CAN Bus and only functions with Keyless Access control
and diagnostics.
The circuit design of CAN Bus B is the same as the Main Can Bus. 120 ohm terminators are
located in the BIU and the Keyless Access Control Module.
The only branch currently installed on CAN Bus B is the Remote Engine Start Control Module.
C 14 is the CAN Bus B High wire and C 15 is the CAN Bus B Low wire.
This CAN circuit controls the lock and unlock signals from the Keyless Access CM to the Body
integrated Unit. A failure disables the Keyless Access lock and unlock functions.
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