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SYMPTOM TROUBLESHOOTING 07–03–11 07–03 End Of Sie 13 CHECK TO SEE WHETHER MALFUNCTION • When refrigerant pressure switch connector Yes Go to next step. No Undo short, reconnect refrigerant pressure switch 14 INSPECT REFRIGERANT PRESSURE • Inspect refrigerant pressure switch. • Is it okay? Yes If refrigerant amount empty, replace receiver/drier, vacuum No Replace refrigerant pressure switch, then go to Step 22. *15 CHECK TO SEE WHETHER MALFUNCTION • Does magnetic clutch operate when terminal Yes Undo short, then go to next step. No Go to Step 18. *16 INSPECT WIRING HARNESS BETWEEN A/C • Turn A/C switch off. • Test voltage at PCM connector (96-pin) • Is voltage approximately 12 V? Yes Go to next step. No Repair wiring harness between A/C relay and PCM, then go *17 INSPECT INPUT SIGNAL FOR PCM A/C CUT- • Inspect the following input signal steering pressure switch including PCM • Are they okay? Yes Inspect coolant system operation. No Inspect PCM. *18 CHECK TO SEE WHETHER MALFUNCTION • Test voltage at magnetic clutch stator and • Is voltage approximately 12 V? Yes Inspect magnetic clutch, then go to Step 22. No Go to next step. 19 INSPECT A/C RELAY POWER SUPPLY • Are A/C relay power supply fuses okay? Yes Go to next step. No Inspect for a short to ground on blown fuse circuit. Repair or *20 INSPECT WIRING HARNESS BETWEEN • Turn ignition switch to ON position. • Test voltage at the following A/C relay • Is voltage approximately 12 V? Yes Go to next step. No Repair wiring harness between fuse block and A/C relay, *21 CHECK TO SEE WHETHER MALFUNCTION • Test voltage at A/C relay terminal D (A/C • Is voltage approximately 12 V? Yes Repair wiring harness between A/C relay and stator and No Inspect A/C relay, then go to next step. 22 VERIFY THAT MALFUNCTION SYMPTOM • Does cool air blow out? (Is refrigerant Yes Troubleshooting completed. No Recheck malfunction symptoms, then repeat from Step 1 if STEP INSPECTION ACTION 1712-1U-01G(07-03).fm 11 ページ 2001年6月29日 金曜日 午前10時19分 |