How Things Work

Ever wonder how the different automotive systems function on you car or truck ?

Read through some of the articles below. This list is being added to all the time, so check back soon.

Power Steering- Electric- How Does It Work

The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions.

Traction Control Light- What Does It Mean

When wheel slip is noted while the brake is not applied, the ABS Computer-(EBCM) will enter traction control mode.

First, the EBCM requests the PCM to reduce the amount of torque to the drive wheels via the requested torque signal circuit. The PCM reduces torque to the drive wheels by retarding spark timing and turning off fuel injectors. The PCM reports the amount torque delivered to the drive wheels via the delivered torque signal circuit.

Anti Lock Brakes -What Does The ABS Light Mean

When wheel slip is detected during a brake application, the ABS enters antilock mode. During antilock braking, hydraulic pressure in each wheel hydraulic circuit is controlled to prevent a wheel from slipping. A separate hydraulic line and specific solenoid valves are used for each wheel. The ABS can decrease, hold, or increase hydraulic brake pressure to each wheel.