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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Engine Controls - Tests W/Codes - Body Control Computer) >> Self-Diagnostic Tests >> Test 103F - Grounded Oil Pressure Sending Unit (On Base Mic)

Test 103F - Grounded Oil Pressure Sending Unit (On Base Mic)

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  section at the end of this article. Perform TEST VER-1B after each repair.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
  1. Disconnect MIC connector. Using scan tool in ohmmeter mode, check resistance of MIC connector terminal No. 8 (Gray wire). If resistance is more than 5 ohms, repair open Gray wire to splice. If resistance is less than 5 ohms, go to next step.
  2. Remove and inspect oil lamp bulb. Replace bulb if necessary. If bulb is okay, replace MIC printed circuit board.