Laser AWD L4-1997cc 2.0L DOHC Turbo (1992)
Brake Signal: Description and Operation
Anti-lock Brake Signal Circuit
PURPOSE
The anti-lock brake signal is provided to control idle speed and increase braking effect.
LOCATION
Located behind the RH rear side panel.
OPERATION
The engine ECU provides the ABS control unit with a 5 Volt reference signal. The engine ECU monitors this signal. When the ABS control unit
determines that brake control is needed, the ABS control unit completes the ground circuit from the engine ECU. When this voltage drop is
detected by the engine ECU. The ECU operates the idle speed control servo to provide effective anti-lock braking.
