Left Hand Drive

The Controller monitors the acceleration switch at all times. The switch assembly contains three mercury switches that monitor vehicle deceleration rates (G force). Sudden, rapid changes in vehicle and wheel deceleration rate trigger the switch, sending a signal to the CAB. The switch assembly provides three deceleration rates; two for forward braking and one for rearward braking.

During four-wheel drive operation, the acceleration (G) switch provides deceleration data to the Anti-Lock Brake System (ABS) control module.

Circuits B515, B516 and B517 connect the acceleration sensor to the ABS control module. Circuits B515 and B516 provide switch states while circuit B517 provides ground. At the ABS control module circuit B515 connects to cavity 25, circuit B516 connects to cavity 43 and circuit B517 connects to cavity 26.