Single Board Engine Controller (SBEC)

HARNESS CHECK

1) If during SELF-DIAGNOSTICS testing, SBEC is found to be faulty, perform the 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. Clean harness connector and SBEC contact pins with contact cleaner.

4) Inspect SBEC harness connector for bent pins, missing pins and broken wires. Repair or replace as necessary.

5) Connect SBEC harness connector to SBEC and retest system with Diagnostic Readout Box (DRB-II) or similar scan tool. See appropriate G - TESTS W/ CODES article. If vehicle does not pass test and fails with the same message, replace SBEC.