Body Control Unit: Notes
On manual gearbox vehicles, the BCU provides cruise control lockout or suspend function as described under brake pedal switch.
On vehicles with automatic gearbox, the BCU monitors the status of the brake pedal switch as well as the status of the automatic gearbox gear selector lever. The BCU monitors the gear selector lever to determine which gearbox position the driver has selected. If the BCU detects that the driver has selected park, reverse or neutral, it sends a signal to the cruise control ECU which inhibits cruise operation or deactivates cruise control if it is activated. For SLABS ECU location, see Figure.