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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Engine Controls - Tests W/Codes - 2.5L TBI) >> Self-Diagnostic Tests >> Test TC-15A - Injector #3 Control Circuit (DTC 27)

Test TC-15A - Injector #3 Control Circuit (DTC 27)

WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, and 1994 Dodge Shadow. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION TABLE. For wiring diagrams, see WIRING DIAGRAMS  .
  1. Turn ignition off. Disconnect injector No. 3 connector (Yellow/White and Dark Green/Black wires). Using an external ohmmeter, check injector resistance. If resistance is not 2-5 ohms, replace injector No. 2. Perform TEST VER-2.
  2. If resistance is 2-5 ohms, turn ignition on. Using DRB, actuate injector No. 3. Using DRB, check voltage on injector No. 3 connector (Dark Green/Black wire). If voltage is less than 10 volts, repair open in Dark Green/Black wire. Perform TEST VER-2  .
  3. If voltage is more than 10 volts, turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using an external ohmmeter, check resistance of Yellow/White wire between injector No. 3 connector and PCM connector terminal No. 14. If resistance is more than 5 ohms, repair open in Yellow/White wire. Perform TEST VER-2.
  4. If resistance is less than 5 ohms, put DRB in ohmmeter mode. Using DRB, check resistance of PCM connector terminal No. 14 (Yellow/White wire). If resistance is less than 5 ohms, repair short to ground in Yellow/White wire. Perform TEST VER-2. If resistance is more than 5 ohms, replace PCM. Perform TEST VER-2.