Galant L4-2.0L SOHC (1989)
Voltage Signal: Testing and Inspection
Battery Backup Power Signal
ECU Connector Pinout
To test the Battery Signal to the ECU locate pin 103 on the ECU connector and test for the presence of power. Battery voltage should be read at this pin
at all times.
Do not disconnect the ECU connector when performing this test, use a backprobing technique with a fine wire or pin.
