Electronic Control Unit - Ignition (940): Notes
WARNING: This page is about a different car, the 1994 Volvo 960, 1994 Volvo 940, and 1994 Volvo 850. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When measuring resistance and voltage at ECU connector, DO NOT probe into front of connector. Probe only through side of connector, just enough to make a good electrical contact. Terminal identification numbers are stamped on side of ECU connector.
NOTE:
Before removing ignition control unit connector, remove fuse No. 31.