TC/ABS

Test readings, control-module connections
Scope
Values and readings for measuring signals and levels in the TC/ABS control module are given in the following pages.


Points to remember:





^ Observe the test conditions. Use common sense in assessing the readings.
^ The test readings presented are with the ignition switched 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 rat and pulse length must be used. The "+" sign denotes a positive trigger pulse (TRIG+).


Control module connections

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IMPORTANT: BOB cable assemblies have not been produced for ABS 5.3, ABS 5.4 or TC/ABS 5.3. Unless otherwise stated, the test readings are those that should be obtained on the control module connector (unplugged). For TC/ABS 5.3, certain readings can be taken with the BOB cable assembly connected to the Trionic T7 control module.