Operation CHARM: Car repair manuals for everyone.
Home >> Land Rover >> 2001 >> Discovery II (LT) V8-4.0L >> Repair and Diagnosis >> Cruise Control >> Description and Operation >> Cruise Control - Description >> Body Control Unit
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Body Control Unit









Body Control Unit
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.

Input/Output
If the BCU receives a brake pedal switch signal or an automatic gearbox gear selector lever position signal, the BCU sends a HIGH signal to the cruise control ECU. The cruise control ECU cancels or inhibits cruise control functions.
pro multis · About Operation CHARM