TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.028

CO/Cooling System — No.2 Radiator Fan Relay ("A.B.S. (TRAC) Relay") Radiator Fan Relay Inspection, page 29

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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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Page text (OCR transcript)
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