Circuit/System Description

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The steering column shaft torque sensor is a 5-volt dual analog inverse signal device which is used to sense steering direction and the amount of torque being applied to the steering column shaft when the steering wheel is turned. The valid signal voltage range of the sensor is 0.25-4.75 volts. When applying torque to the steering column shaft during a right turn, the sensors signal 1 voltage increases, while the signal 2 voltage decreases within the valid signal voltage range. When applying torque to the steering column shaft during a left turn, the sensors signal 1 voltage decreases, while the signal 2 voltage increases within the valid signal voltage range.

After replacing the steering column or power steering control module (PSCM), the steering wheel torque and position sensors must be calibrated.