Sonata V6-3.0L (1991)
Voltage Signal: Testing and Inspection
Ignition Signal
ECU System
To test the Ignition Signal to the ECU, locate pin #6 of ECU connector C02-3, and test for the presence of battery voltage with the ignition key in the
"on" position. There should be battery voltage present.
NOTE: To test pins do not remove the connector from the ECU, instead insert a straight pin or needle from the back side of the connector to access the
pin.