Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Crankshaft Position/Engine Speed Sensor <--> [Crankshaft Position Sensor] > Component Information > Testing and Inspection > Ignition ECM
Crankshaft Position/Engine Speed Sensor: Testing and Inspection
NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing. Use the wiring diagrams found in
CHASSIS ELECTRICAL DIAGRAMS to supplement your testing efforts.
Accessing Ignition ECU Connector
Turn ignition OFF.
Access ignition ECM by removing the panel under left hand side of instrument panel.
Remove ECM connector by pushing out the catch and folding out the wire cluster.
Check ignition ECM ground connections at intake manifold. They should make good contact.
Removing Protective Cover
Remove connector protective sleeve.
^ Check connections through the holes in the connector.
Checking Terminal Pins
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