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Test Dr-17A - "Injector No. 2 Control Circuit" (DTC 27)

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagram, see WIRING DIAGRAMS  at end of article.
  1. Turn ignition off. Disconnect and inspect fuel injector No. 2 connector. Repair connector if damaged. Perform VERIFICATION TEST VER-2  . If connector is okay, measure fuel injector resistance using a DVOM. If resistance is not 13-16 ohms, replace injector. Perform VERIFICATION TEST VER-2  . If resistance is 13-16 ohms (except Wrangler), go to next step. If resistance is 13-16 ohms (Wrangler), perform TEST DR-17B  .
  2. Turn ignition on. With DRB-II, actuate fuel system. Place DRB-II in voltmeter mode. Probe Dark Green/Orange wire at injector No. 2 connector. If voltage is 10 volts or less, repair open Dark Green/Orange wire between injector connector and harness splice. Perform VERIFICATION TEST VER-2  . If voltage is more than 10 volts, go to next step.
  3. Turn ignition off. Disconnect and inspect engine controller 60-pin connector. Repair connector if damaged. Perform VERIFICATION TEST VER-2  . If connector is okay, place DRB-II in ohmmeter mode. Check resistance of Tan wire at engine controller connector terminal No. 15. If resistance is less than 10 ohms, repair Tan wire for a short to ground. Perform VERIFICATION TEST VER-2  .
  4. If resistance is 10 ohms or more, check resistance of Tan wire between fuel injector No. 2 connector and engine controller connector terminal No. 15 using a DVOM. If resistance is 10 ohms or more, repair open Tan wire. Perform VERIFICATION TEST VER-2  . If resistance is less than 10 ohms, replace engine controller. Perform VERIFICATION TEST VER-2  .
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