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Home >> GMC >> 1993 >> Forward Control 4.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine Controls - Tests W/Codes - Body Control Computer) >> Self-Diagnostic Tests >> Test 34A - EIC Switch Operation
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Test 34A - EIC Switch Operation

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: Perform TEST VER-1B after each repair.
  1. Using scan tool, read EIC TRIP switch status. If scan tool displays CIRCUIT CLOSED, replace EIC. If scan tool does not display CIRCUIT CLOSED, go to next step.
  2. Press and hold TRIP button. If scan tool does not display CIRCUIT CLOSED, replace EIC. If scan tool displays CIRCUIT CLOSED, go to next step.
  3. Release TRIP button. Read EIC US/METRIC switch status. If scan tool displays CIRCUIT CLOSED, replace EIC. If scan tool does not display CIRCUIT CLOSED, go to next step.
  4. Press US/METRIC button. If scan tool does not display CIRCUIT CLOSED, replace EIC. If scan tool displays CIRCUIT CLOSED, go to next step.
  5. Release US/METRIC button. Read EIC reset switch status. If scan tool displays CIRCUIT CLOSED, replace EIC. If scan tool does not display CIRCUIT CLOSED, go to next step.
  6. Press and hold RESET button. If scan tool does not display CIRCUIT CLOSED, replace EIC. If scan tool displays CIRCUIT CLOSED, system is okay.