TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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IN/Introduction — For Vehicles Equipped with Traction Control (TRAC) System, page 17

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For Vehicles Equipped with Traction Control (TRAC) System — MK4 Supra Introduction, page 17
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Page text (OCR transcript)
IN–16

INTRODUCTION – PRECAUTION

FOR VEHICLES EQUIPPED WITH
TRACTION CONTROL (TRAC) SYSTEM

When using a rear wheel two–wheel drum tester such as a
speedometer tester or chassis dynamometer, etc., or jacking
up the rear wheels and driving the wheels, always push in the
TRAC cut ("TRAC OFF") switch and turn the TRAC system
OFF.

TRAC OFF
Indicator Light
TRAC
OFF

TRAC Cut
Switch
TRAC OFF

N08991

CONFIRM TRAC SYSTEM IS OFF
1. Press the TRAC cut ("TRAC OFF") switch.
2. Check that the TRAC OFF indicator light comes on when the
TRAC system is turned off by the TRAC cut switch.
HINT: The TRAC indicator light should always operate right
after the engine is restarted.

N08870

3. Begin measurements.

TRAC

N08990

4. Press the TRAC cut switch again to change the TRAC to
operative and check that the TRAC OFF indicator light goes
off.
HINT: The TRAC indicator light blinks when the TRAC system
is operative.