940 L4-2.3L SOHC VIN 88 B230F (1992)
Checking Battery Supply
8.
Check main power supply by connecting a voltmeter between pin 5 (brown) in ECU connector and ground.
Reading: approx. 12 volts
9.
If no voltage registers, check wire between ECU and fuse-box located behind the center console ash tray. Check fuse #1, #3 and wiring to battery
(incl. battery terminals). Repair as necessary.
Checking EGR Converter
10.
Check the EGR converter by connecting an ohmmeter between pin 6 (blue) and 15 (red-green).
Reading: approx. 85 ohms
a. If O.K., converter is operating correctly.
b. If reading is different, check wiring and connectors. If no fault found in wiring, replace the converter and retest.
11.
After testing, disconnect all test equipment, reconnect all connectors (including the ECU connector) and remount all panels.
