TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System, page 17

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Body Electrical System — MK2 Supra Body Electrical System, page 17
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Page text (OCR transcript)
BODY ELECTRICAL SYSTEM — Lighting                                BE-17

(b) Connect the negative (—) lead to the terminal 6.
     Check that the test bulb does not light.

If operation is not as specified, replace the relay.

Fog Light Switch
INSPECTION OF FOG LIGHT SWITCH
INSPECT SWITCH CONTINUITY

Inspect the switch continuity between terminals.

Switch         Terminal
position       1       3
ON            O-------O
OFF

If continuity is not as specified, replace the switch.

Fog Light Relay
INSPECTION OF FOG LIGHT RELAY
1. INSPECT RELAY CONTINUITY
   (a) Check that there is continuity between terminals 1
       and 3.
   (b) Check that there is no continuity between terminals 2
       and 4.

   If continuity is not as specified, replace the relay.

2. INSPECT RELAY OPERATION
   (a) Apply battery voltage across terminals 2 and 4.
   (b) Check that there is continuity between terminals 1
       and 3.

   If operation is not as specified, replace the relay.

Light Control Rheostat (Analog Type)
INSPECTION OF LIGHT CONTROL RHEOSTAT
INSPECT RHEOSTAT OPERATION
   (a) Gradually change the brightness of rheostat from
       maximum to minimum, check that the resistance be-
       tween terminals increases from 0 Ω to 10 Ω.

0.0 —→ 10 Ω