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CO(H6DO)-10 COOLING RADIATOR MAIN FAN SYSTEM 18 CHECK POWER SUPPLY TO MAIN FAN MO- CAUTION: Be careful not to overheat engine during re- 1) Turn ignition switch to OFF. cedure during coolant temperature is 98 — ° C (208 — 214 ° F). 4) Measure voltage between main fan motor connector and chassis ground. Connector & terminal (F17) No. 1 (+) — Chassis ground ( −−−− ): Does the measured value exceed the spec- 10 V 19 CHECK POOR CONTACT. There is poor contact. Repair poor con- 20 CHECK MAIN FAN MOTOR. − ) terminal to terminal No. 4 of main fan motor connector. Rotates. Repair poor con- Replace main fan 21 CHECK POWER SUPPLY TO MAIN FAN RE- holder. 3) Measure voltage between main fan relay 1 terminal and chassis ground. Connector & terminal (F66) No. 8 (+) — Chassis ground ( −−−− ): Does the measured value exceed the spec- 10 V 22 CHECK POWER SUPPLY TO MAIN FAN RE- terminal and chassis ground. Connector & terminal (F66) No. 5 (+) — Chassis ground ( −−−− ): Does the measured value exceed the spec- 10 V 23 CHECK 30 A FUSE. Is the fuse blown-out? Fuse is blown out. Replace fuse. 24 CHECK POWER SUPPLY TO A/C RELAY Connector & terminal (F27) No. 1 (+) — Chassis ground ( −−−− ): Does the measured value exceed the specified 10 V Repair open circuit Repair open circuit Step Value Yes No |