LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Controls - Tests W/Codes - 3.0L) >> Diagnostic Charts >> Test TC-17B - Injector #1 Control Circuit

Test TC-17B - Injector #1 Control Circuit

WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, 1994 Dodge Shadow, and 1994 Chrysler LeBaron. 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 DIRECTORY  . For wiring diagrams, see WIRING DIAGRAMS  .
NOTE: It may be necessary to remove intake plenum when performing this procedure.
  1. Turn ignition off. Disconnect 8-pin injector harness connector. Using an external ohmmeter, check resistance between White/Dark Blue wire and Dark Green/Orange wire on 8-pin injector harness connector (injector side). If resistance is 10-15 ohms, go to next step. If resistance is not 10-15 ohms, go to TEST TC-17C.
  2. Move ohmmeter lead from Dark Green/Orange wire to ground. If resistance is less than 5 ohms, repair short to ground in White/Dark Blue wire. Perform TEST VER-2  . If resistance is more than 5 ohms, go to next step.
  3. Turn ignition on. Using DRB, actuate ASD relay. Put DRB in voltmeter mode. Using DRB, check voltage on 8-pin injector harness connector (PCM side) Dark Green/Orange wire. If voltage is less than 10 volts, repair open in Dark Green/Orange wire. Perform TEST VER-2. If voltage is more than 10 volts, go to next step.
  4. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Put DRB in ohmmeter mode. Using DRB, check resistance of PCM connector terminal No. 16 White/Dark Blue wire. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground in appropriate wire. Perform TEST VER-2.
  5. Using an external ohmmeter, check resistance of White/Dark Blue wire between PCM connector terminal No. 16 and 8-pin injector harness connector (PCM side). If resistance is more than 5 ohms, repair open in appropriate wire. Perform TEST VER-2. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2.
scientia non olet · About LEMON Manuals