TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.135

BAT/Brakes, ABS & TRAC Systems — Check sub–throttle actuator., page 136

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p.137
Check sub–throttle actuator. — MK4 Supra Brakes, ABS & TRAC Systems, page 136
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Page text (OCR transcript)
BR–136
BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)

3 Check sub–throttle actuator.

P Disconnect sub–throttle actuator connector.

C Check continuity between each terminal of sub–throttle actuator connector shown below.

OK
Terminals 1 and 2
Terminals 2 and 3
Terminals 4 and 5
Terminals 5 and 6
Continuity
(Reference value 0.9 )

The illustration shows checking for continuity between 4 – 5, and 5 – 6.

R06199

OK
NG Replace sub–throttle actuator.

4 Check for open and short in harness and connector between TRAC ECU and sub–throttle actuator (See page IN–30).

OK
NG Repair or replace harness or connector.

Check and replace TRAC ECU.