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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Engine Controls - Tests W/Codes - 2.5L) >> No-Start Tests >> Test NS-6D - Correcting No Response Condition

Test NS-6D - Correcting No Response Condition

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. 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  . For wiring diagrams, see WIRING DIAGRAMS  section.
  1. Disconnect fuel pump relay and Oxygen Sensor (O2S) connectors. Using scan tool, check resistance of fuel pump relay connector Dark Green/Black wire. If resistance is less than 5 ohms, repair short to ground in Dark Green/Black wire. Perform TEST VER-1.
  2. If resistance is more than 5 ohms, check resistance of O2S connector (component side) relay output circuit (White wire). If resistance is less than 5 ohms, replace O2S. Perform TEST VER-1. If resistance is more than 5 ohms, replace fuel pump. Perform TEST VER-1.