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SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM (ZM)] 01–03A–49 01–03A NO.28 FUEL FILLING SHUT OFF ISSUES [ZM] A3U010318881W70 Diagnostic procedure End Of Sie NO.29 INTERMITTENT CONCERNS [ZM] A3U010318881W71 Diagnostic procedure 28 Fuel filling shut off issues DESCRIPTION • Fuel does not shut off properly. POSSIBLE CAUSE • Clogged evaporative emission pipes • Nonreturn valve malfunction • Fuel shut-off valve malfunction • Fuel nozzle malfunction • Fuel nozzle is not inserted correctly. Warning •••• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep •••• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or STEP INSPECTION ACTION 1 • Retrieve DTCs. • Are there any DTCs displayed? Yes Go to appropriate DTC test. No Go to next step. 2 • Remove fuel-filler pipe. • Make sure nonreturn valve is installed • Inspect nonreturn valve operation. • Is nonreturn valve okay? Yes Inspect for following: • Improper use of fuel nozzle • Fuel nozzle is not inserted correctly. • Inspect fuel shut-off valve No If nonreturn valve is installed improperly: • Reinstall nonreturn valve to proper position. If nonreturn valve does not operate properly: • Replace nonreturn valve. 3 • Verify test results. • If vehicle is repaired, troubleshooting completed. • If vehicle is not repaired or additional diagnostic information is not available, replace PCM. 29 Intermittent concerns DESCRIPTION • Symptom occurs randomly and is difficult to diagnose. STEP INSPECTION ACTION 1 • Talk to customer. • Retrieve vehicle service history. • Does vehicle have a number of previous Yes Go to next step. No Go to Symptom Index. 2 • Connect WDS or equivalent to DLC-2. manually. • Turn ignition switch on. • Access PIDs for suspect component. • Lightly tap on suspect component, wiggle • Are any PID values out of range, or do they Yes Inspect each wire for corrosion, bent or loose terminal No Go to next step. 1712-1U-01G(01-03A).fm 49 ページ 2001年6月29日 金曜日 午後4時45分 |