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PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE (CONTINUED) 4. WIRE HARNESS INSPECTION Clear the DTC(s). Attempt to duplicate the customer complaint. Whether the customer complaint can be duplicated or not, make a quick wire harness inspection related to the Check the Powertrain Control Module connectors, the suspected component connection, in-line connectors, wire If the DTC(s) are fuel or air related, check the fuel level and quality. Were any repairs made that fixed the customer’s complaint? Yes >> Testing complete. No >> Refer to the diagnostic test procedure related to the DTC. HB ENGINE ELECTRICAL DIAGNOSTICS 9 - 7 |