Test Readings, Control Module Connections

Scope







The following chapter contains readings and directions for measuring signals/levels on the Motronic control module.







Keep in mind:
- Note the measuring conditions, use common sense when considering the measurement results.
- The specified values are with the ignition in the ON position unless otherwise stated.
- First, check that the control module is supplied with power and that it is grounded.
- Then check all the inputs and signals from other systems.
- Finally, check the control module outputs. Remember that the test readings do not indicate whether the actuator is working.
- If any measured value is incorrect, use the wiring diagram to diagnose which leads, connections or components that should be checked further.
- The stated values refer to calibrated Fluke 88/97.
- The test values % (+) and ms (+) indicate the pulse ratio and pulse length of the signal respectively. A test instrument with pulse ratio respective pulse width measuring capacity must be used. The sign indicates positive trigger pulse, TRIG+.

Pin No. 1 - 7:

Pin No. 8 - 26:

Pin No. 27 - 47:

Pin No. 48 - 55: