Component Tests and General Diagnostics
Test Readings, Control Module Connections
Extent
The following information contain values and instructions for obtaining readings of signals and levels on the heater.
Remember
^ Note the test conditions and use your common sense when judging the test results.
^ Unless otherwise stated, the test readings presented are with the ignition switch in the ON position.
^ First check that the control module is supplied with current and grounded.
^ Then check all sensor inputs and signals from other systems.
^ Finally, check the control module outputs. Remember that the test readings do not indicate 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 ought to be checked more thoroughly.
^ The test readings given apply to a correctly calibrated Fluke 88/97.
^ The readings %(+) and ms(+) indicate the pulse ratio and pulse duration. A test instrument capable of measuring both pulse ratio and pulse duration must be used. The + sign denotes a positive trigger pulse (TRIG+).
Connector B1
Pin 1 - 8:
Connector B2
