Technical Data

bS(:

Hydraulic unit





Control module (integrated into hydraulic unit)

Wf(:

Front-wheel sensors





Rear-wheel sensors





Tightening torques
Hydraulic unit 20 Nm (14.8 ft. lbs.)





Test readings, control-module connections

Scope
The values and readings for measuring signals and levels in the ABS control module are given on the following pages.

Points to remember:
^ Observe the test conditions. Use common sense in assessing the readings.
^ The readings presented are with the ignition ON unless otherwise stated.
^ Start by checking that the control module is receiving power and is grounded.
^ Check all sensor inputs and signals from other systems.
^ Finally, check the control module outputs. Remember that the readings do not provide an indication that the actuator is operating.
^ If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components that need further checking.
^ The specified readings are valid for a correctly calibrated Fluke 88/97.





^ The readings %(+) and ms(+) indicate the pulse ratio and pulse length. A test instrument capable of measuring both pulse rate and pulse length must be used. The '+' sign denotes a positive trigger pulse (TRIG+).





Connection, test readings





Pins 1 through 3





Pins 4 through 25

��(:

Pin 26

IMPORTANT: The readings apply to measurements taken on the control module's connector (unplugged) unless otherwise stated.
> = greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulse)