ABS With TCS Only

Test Readings, Control Module Connections

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

Points To Remember:
- Observe the test conditions. Use common sense in assessing the readings.
- The test readings presented are taken 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












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, see the notes under Test reading.

Terminals 1 - 8:

Terminals 9 - 16:

Terminals 17 - 26:

Terminals 27 - 31:

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