940 L4-2.3L SOHC VIN 88 B230F (1992)
Checking Pin 20
14.
Connect an ohmmeter between pin 20 (brown) and ground.
Reading: 0 ohm
15.
If not, check wiring and fix as necessary.
16.
Then connect the ohmmeter between pin 14 (black) and ground.
Reading: 0 ohm.
17.
If not, check wiring and fix as necessary.
18.
After testing, disconnect all test equipment, reconnect all connectors (including the ECU connector) and remount all panels.