Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Dodge and Ram >> 1997 >> Caravan Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.3L >> Trouble Code Tests >> Test TC-69D - Injector No. 5 Control Circuit

Test TC-69D - Injector No. 5 Control Circuit

NOTE: Perform TEST TC-69A before proceeding. Test applies only to 3.3L Compressed Natural Gas (CNG). For connector terminal ID, see the CONNECTOR IDENTIFICATION DIRECTORY. For wiring diagram, see WIRING DIAGRAMS - 3.3L article.
  1. Ensure ignition is off. Disconnect connector at injector No. 5. Injector No. 5 is third injector back from front (timing chain end) of engine on left side when viewed from flywheel end of engine. This injector is located above cylinder No. 6, but delivers fuel to cylinder No. 5, due to crossflow intake manifold.
  2. Using ohmmeter, check resistance between electrical terminals on injector No. 5. If resistance is 3-6 ohms, go to next step. If resistance is not 3-6 ohms, replace injector. Perform TEST VER-2A.
  3. Turn ignition on. Using scan tool, actuate Auto Shutdown (ASD) relay. Using voltmeter, check voltage at terminal No. 1 (Dark Green/Orange wire) on connector for injector No. 5.
  4. If voltage cycles from high voltage to low voltage, go to next step. If voltage does not cycle from high voltage to low voltage, repair open circuit in Dark Green/Orange wire from ASD relay. Perform TEST VER-2A. The ASD relay is located in power distribution center at driver's side front corner of engine compartment, near battery.
  5. Turn ignition off. Disconnect connectors from Powertrain Control Module (PCM). The PCM is located between driver's side front fender and power distribution center, near battery.
  6. Using ohmmeter, check resistance between ground and PCM connector terminal No. 15 (Gray wire). If resistance is less than 5 ohms, repair short to ground in Gray wire between PCM and injector No. 5. Perform TEST VER-2A. If resistance is 5 ohms or more, go to next step.
  7. Using ohmmeter, check resistance between terminal No. 2 (Gray wire) on connector for injector No. 5 and PCM connector terminal No. 15 (Gray wire). If resistance is 5 ohms or more, repair open circuit in Gray wire between PCM and injector No. 5. Perform TEST VER-2A. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2A.
scientia non olet · About Mike's Workshop Manuals