Control Module: Description and Operation: Description and Operation
Description
Four Wheel Drive (4WD) transfer mode selection
1. AUTO MODE:
CAUTION:
- When driving in 4WD AUTO mode, the vehicle operates similar to conventional 2WD vehicles under normal operating conditions. However, if the system determines that there is a need for the 4WD mode, the engine's driving power is distributed to all four wheels automatically without driver intervention.
- When driving on normal roads and pavement, the vehicle moves similar to conventional 2WD vehicles.
2. LOCK MODE:
CAUTION:
- This mode is used for climbing or descending sharp grades, off-road driving, driving on sandy and muddy roads, etc., to maximize traction.
- This mode automatically begins to deactivate at speeds above 30 km/h (19 mph) and is shifted to 4WD AUTO mode at speed above 40 km/h (25 mph). If the vehicle speed decelerates to below 30 km/h (19 mph), however, the transfer mode is shifted into 4WD LOCK mode again.