Test TC-19D - Injector No. 3 Control Circuit
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION Directory. For wiring diagram, see appropriate WIRING DIAGRAMS - NON-TURBO
article.
- It may be necessary to remove intake plenum for access to injector connectors. Reconnect junction block No. 2 connector. Disconnect injector No. 3 connector. Turn ignition on. Using scan tool, actuate ASD relay. Using scan tool in voltmeter mode, check voltage on injector No. 3 connector Dark Green/Orange wire. If voltage cycles high and low, go to next step. If voltage does not cycle high and low, repair open Dark Green/Orange wire. Perform TEST VER-2A.
- Turn ignition off. Using an external ohmmeter, check resistance of Yellow/White wire between injector No. 3 connector and junction block No. 1 connector (injector side). If resistance is less than 5 ohms, replace injector No. 3. Perform TEST VER-2A. If resistance is 5 ohms or more, repair open Yellow/White wire. Perform TEST VER-2A.