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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 5A - Chime Operates W/LF Door Open & Key Out Of Ignition

Test 5A - Chime Operates W/LF Door Open & Key Out Of Ignition

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.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
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.
  1. Remove key from ignition switch. Ensure headlamps and parking lamps are off. Open left front door. If chime does not sound, system is okay at this time. If chime sounds, go to next step.
  2. Using scan tool, read key in ignition status. If scan tool displays KEY IN IGN CLOSED, go to step 6). If scan tool does not display KEY IN IGN CLOSED, go to next step.
  3. Using scan tool, read headlamp (STEP UP) status. if scan tool displays STEP UP OFF, replace Body Control Module (BCM). If scan tool does not display STEP UP OFF, go to next step.
  4. Disconnect BCM Natural connector. BCM is located behind left side knee panel. Check condition of connector, and clean or repair connector as necessary. If connector is okay, go to next step.
  5. Using scan tool in voltmeter mode, check voltage on BCM Natural connector terminal No. 8 (Tan wire). If voltage is more than 10 volts, repair Tan wire for short to voltage. If voltage is less than 10 volts, replace BCM.
  6. Disconnect key in ignition switch connector (4-wire connector at ignition switch). Using scan tool, read key in ignition status. If scan tool does not display KEY IN IGN CLOSED, replace ignition switch. If scan tool displays KEY IN IGN CLOSED, go to next step.
  7. Disconnect Body Control Module (BCM) Blue connector. BCM is located behind left side knee panel. Check condition of connector, and clean or repair connector as necessary. If connector is okay, go to next step.
  8. Using scan tool in ohmmeter mode, check resistance of BCM Blue connector terminal No. 2 (Light Blue wire). If resistance is more than 5 ohms, replace BCM. If resistance is less than 5 ohms, repair short to ground in Light Blue wire.
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