TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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CO/Cooling System29 / 30
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No.2 Radiator Fan Relay ("A.B.S. (TRAC) RELAY") RADIATOR FAN RELAY INSPECTION — MK4 Supra Cooling System, page 29
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ENGINE – COOLING SYSTEM EG–357 B. Inspect relay operation (a) Apply battery voltage across terminals 3 and 4. (b) Using an ohmmeter, check that there is continuity between terminals 1 and 2. If operation is not as specified, replace the relay. 5. REINSTALL RADIATOR FAN RELAY 6. w/ Auto Spoiler: REINSTALL LH HEADLIGHT 7. w/o Auto Spoiler: REINSTALL ENGINE UNDER COVER No.2 Radiator Fan Relay ("A.B.S. (TRAC) RELAY") RADIATOR FAN RELAY INSPECTION 1. w/ Auto Spoiler: REMOVE LH HEADLIGHT 2. w/o Auto Spoiler: REMOVE ENGINE UNDER COVER 3. REMOVE RADIATOR FAN RELAY No. 2 Radiator Fan Relay 4. INSPECT RADIATOR FAN RELAY A. Inspect relay continuity (a) Using an ohmmeter, check that there is continuity between terminals 1 and 6. (b) Check that there is continuity between terminals 3 and 5. (c) Check that there is no continuity between terminals 2 and 5. If continuity is not as specified, replace the relay. Ohmmeter Ohmmeter Continuity Ohmmeter No Continuity Continuity B. Inspect relay operation (a) Apply battery voltage across terminals 1 and 6. (b) Using an ohmmeter, check that there is no continuity between terminals 3 and 5. (c) Check that there is continuity between terminals 2 and 5. If operation is not as specified, replace the relay. 5. REINSTALL RADIATOR FAN RELAY 6. w/ Auto Spoiler: REINSTALL LH HEADLIGHT 7. w/o Auto Spoiler: REINSTALL ENGINE UNDER COVER Ohmmeter Ohmmeter Continuity Battery Continuity