Test Readings, Control Module Connections: Notes

Fig 1: Test Readings, Control Module Connections

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Instructions and values for measuring the ACC unit are available on the following pages.

Remember: 

• Observe the test conditions. Use common sense when evaluating test results.
• First check that the control module is supplied with current and grounded.

  Then check all sensor inputs and signals from other systems.

  Check the control module outputs last. Remember that the test readings do not indicate whether or not the actuator is working.

• If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which ought to be checked more thoroughly.
• The specified test readings refer to a calibrated Fluke 88/97.
• The test readings show respectively the pulse ratio and pulse duration of the signal. A test instrument capable of measuring both pulse ratio and pulse duration must be used.
  Fig 2: Identifying Temperature Gauge

  Courtesy of SAAB-SCANIA OF AMERICA, INC.