TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Brake Fluid Level Warning Inspection, page 52

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p.053
Brake Fluid Level Warning Inspection — MK4 Supra Body Electrical Systems, page 52
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Page text (OCR transcript)
BE–52
BODY ELECTRICAL SYSTEM – COMBINATION METER

BRAKE FLUID LEVEL WARNING INSPECTION
1. INSPECT SWITCH
(a) Remove the reservoir tank cap and strainer.
(b) Disconnect the connector.
(c) Check that there is no continuity between terminals with the switch OFF (float up).
(d) Use syphon, etc. to take fluid out of the reservoir tank.
(e) Check that there is continuity between terminals with the switch ON (float down).
(f) Pour the fluid back in the reservoir tank.
If operation is not as specified, replace the switch.
2. INSPECT WARNING LIGHT
(a) Disconnect the connector from the brake fluid warning switch.
(b) Release the parking brake pedal.
(c) Connect terminals on the wire harness side of the level warning switch connector.
(d) Start the engine, check that the warning light lights up.
If the warning light does not light up, test the bulb or wire harness.

N09955

Warning Light
Ignition Switch
Battery
BE1217

PARKING BRAKE WARNING INSPECTION
1. INSPECT SWITCH
(a) Check that there is continuity between terminal and switch body with the switch ON (switch pin released).
(b) Check that there is no continuity between terminal and switch body with the switch OFF (switch pin pushed in).
If operation is not as specified, replace the switch or inspect ground point.
2. INSPECT WARNING LIGHT
(a) Disconnect the connector from the parking brake switch and the brake fluid warning switch.
(b) Ground terminal on the wire harness side connector.
(c) Start the engine, check that the warning light lights up.
If the warning light does not light up, test the bulb or inspect wire harness.

N09510

Warning Light
Ignition Switch
Battery
BE0044