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.
Nominal values and instructions for measuring voltages on the control module can be found under the respective headings below.
Remember:
- Note the test conditions and use common sense when assessing the test result.
- The nominal test readings shown apply with the ignition switched ON unless otherwise stated.
- First check that the control module has a power supply and is grounded.
- Then check all sensor inputs and signals from other systems.
- Finally, check the outputs. Remember that the test readings do not tell us whether or not the module is functioning properly.
- 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.
- Test readings % (+) and ms (+) show the pulse ratio and pulse duration of the signal. The test instrument used must be able to measure pulse ratio and pulse width. The (+) sign denotes a positive trigger pulse, TRIG+.
Nominal values and instructions for measuring voltages on the control module can be found under the respective headings below.
Remember:
- Note the test conditions and use common sense when assessing the test result.
- The nominal test readings shown apply with the ignition switched ON unless otherwise stated.
- First check that the control module has a power supply and is grounded.
- Then check all sensor inputs and signals from other systems.
- Finally, check the outputs. Remember that the test readings do not tell us whether or not the module is functioning properly.
- 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.
- Test readings % (+) and ms (+) show the pulse ratio and pulse duration of the signal. The test instrument used must be able to measure pulse ratio and pulse width. The (+) sign denotes a positive trigger pulse, TRIG+.