Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Ignition System > Ignition Control Module > Component Information > Testing and Inspection > Bendix > Page 4499
Check that terminal contacts have been pushed down evenly in connector.
If any connectors have been pushed down to far, poor connection may result.
Checking Battery Supply
Check main power supply by connecting a voltmeter between pin 5 (brown) in ECU connector and ground.
Reading: approx. 12 volts
If no voltage registers, check wire between ECU and fuse-box located behind the center console ash tray. Check fuse #1 and wiring to battery
Separating Ignition Coil From Power Stage
Check ignition coil and power stage by disconnecting connectors.
Remove the two mounting bolts (Torx) and separate the ignition coil from the power stage.
Measuring Positive And Negative Side Of Coil
Measure resistance across the LT terminals (+ and -) as shown in the figure.
Reading: approx. 0.5 ohm
If reading is different, replace and retest with new coil.
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