Traction Control Module: Testing and Inspection

Test Readings, Control-Module Connections

Scope
The following pages include the values and readings for measuring the signals and levels on the ESP control module.

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 ratio and pulse length must be used. The "+" sign denotes a positive trigger pulse (TRIG+).

Control Module Connections

Connector View:

Note: A BOB cable assembly has not been produced for ESP. Unless otherwise stated, the test readings are those that should be obtained on the control module connector (unplugged).

Terminals 1-16:

Terminals 17-33:

Terminals 34-45:

Image Index
> = greater than;
< = less than;
~ = alternating current
(LP: LOGIC PROBE
P = select pulse;
p = visible pulse).