Diagnostic Aids

Following information should be noted during testing:

• A spark plug with a broken side electrode is NOT sufficient to check for spark and may lead to incorrect results.
• When instructed to inspect a wiring harness, both a visual inspection and a continuity test should be performed.
• When making measurements on a wiring harness or connector, perform a WIGGLE test while measuring.
• References to SPOUT in-line connector apply to both in-line and shorting-bar type connectors.
• Test procedures are intended to identify faulty components or wiring while fault is present. If complaint is an intermittent condition, refer to TESTS W/O CODES article in the ENGINE PERFORMANCE Section.