Test readings, control module connections: Scope

WARNING: This page is about a different car, the 2006 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: [Identifying Control Module Connections]

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying Test Readings

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The following pages include values and directions for measuring signals and levels on the main instrument unit and its control module.

Remember:

Note the test conditions and use common sense when assessing the test result.
First check that the control module has a power supply and is grounded.
Then check all sensor inputs and signals from other systems.
Lastly, check the control module outputs. Remember, the readings do not say anything about whether or not the actuator is in working order.
If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which should be checked more thoroughly.
The specified test readings refer to those obtained with a calibrated Fluke 88/97.
The test values %(+) and ms(+) indicate the pulse ratio and pulse duration of the signal. A test instrument for measuring pulse ratio and pulse duration must be used. The (+) sign indicates a positive trigger pulse, TRIG+.