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Home >> Plymouth >> 1992 >> Voyager Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - Gasoline >> Computerized Engine Controls >> Single Board Engine Controller (SBEC) >> Harness Check
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Harness Check

  1. If SBEC is found to be faulty during SELF-DIAGNOSTICS testing, perform following steps to confirm diagnosis. Most components are incorrectly diagnosed due to faulty electrical connectors or poor connections between component and vehicle. Sometimes, simply disconnecting and connecting an electrical component will provide a good electrical connection.
  2. Before replacing an SBEC, check all components in suspected circuit. If components are okay, carefully disconnect SBEC from vehicle harness.
  3. Inspect SBEC harness connector and SBEC contact pins for corrosion, bent pins, missing pins, spread cavities and broken wires. Clean, repair or replace connector as necessary.
  4. Connect SBEC harness connector to SBEC, and retest system using Diagnostic Readout Box (DRB-II) or similar scan tool. See appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section. If vehicle does not pass test and fails with same message, replace SBEC.
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