Honda Pilot: VSA System Description - VSA OFF MODE

When the VSA OFF switch is pressed, the VSA OFF indicator will illuminate and the VSA will go into the OFF mode.

During VSA OFF mode:

• If the TCS activates, the VSA indicator blinks while the VSA OFF indicator is still on.
• The ability to gain traction on loose sand and deep snow is increased by terminating the TCS function at low speeds.
• During a standing start from varying road surfaces under the left and right side of the vehicle, the TCS function helps gain traction.
• When the vehicle is on a lift while being serviced and its tires are not in contact with any surface, the wheel speed will not exceed 31 mph (50 km/h).
• The TCS function is fully disabled when the VSA maintenance mode is activated.

TCS Operation Image

VSA Maintenance Mode

Enter the VSA maintenance mode when the vehicle is on a lift or two-wheel dynamometer, where you need the wheel spin speed to exceed 31 mph (50 km/h). For information on how to enter and exit the VSA maintenance mode, refer to "How to enter VSA maintenance mode" in the Removal and Installation section of the shop manual.

VSA System Description - Wheel Speed Sensor

The VSA system uses 4 wheel speed sensors to monitor individual wheel speed. The wheel speed sensor is a semiconductor, Hall effect sensor, installed on the inner sealing surface of each hub and wheel bearing assembly. The frequency of the sensor output signal is proportional to the speed of the wheel and this signal information is sent to the VSA control unit.

VSA System Description - Yaw Rate-Acceleration Sensor

Yaw Rate Sensor (included in the VSA modulator-control unit)

The yaw rate sensor calculates the yaw rate of the vehicle based on the capacitance changes in the internal sensor element. Based on the Coriolis force, the sensor element increases/decreases in capacitance between the electrodes depending the vehicle movement.

Acceleration Sensor (included in the VSA modulator-control unit)

The acceleration sensor is a 2-axis detection type (longitudinal and lateral) and calculates the acceleration rate in each direction (axis). The internal sensor element increases/decreases in capacitance between the electrodes depending on vehicle movement.

VSA System Description - Starting Assist Brake FunctionVTEC/Variable Cylinder Management (VCM) System Description