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Test TC-21E - Injector No. 1 Control Circuit

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS - 2.5L article.
  1. It may be necessary to remove intake plenum for access to injector connectors. Disconnect injector No. 1 connector. Using an ohmmeter, check resistance of Dark Green/Orange wire between injector No. 1 connector and junction block No. 2 connector (injector side). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Dark Green/Orange wire. Perform TEST VER-2A.
  2. Using an ohmmeter, check resistance of White/Dark Blue wire between injector No. 1 connector and junction block No. 1 connector (injector side). If resistance is less than 5 ohms, replace injector No. 1. Perform TEST VER-2A. If resistance is 5 ohms or more, repair open White/Dark Blue wire. Perform TEST VER-2A.