Lexus SC300 / Lexus SC400. Manual — part 233

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BRAKE SYSTEM

TRACTION CONTROL SYSTEM (TRAC)

BR–183

Location of Connectors in Body
SC300

BR–184

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BRAKE SYSTEM

TRACTION CONTROL SYSTEM (TRAC)

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BRAKE SYSTEM

TRACTION CONTROL SYSTEM (TRAC)

BR–185

WIRING DIAGRAM

IN–33

).

DTC

24

TRAC Sub–Throttle Actuator Circuit

CIRCUIT DESCRIPTION

The sub–throttle actuator operates in accordance with signals from the ECU, controlling the opening and
closing of the sub–throttle valve.

DTC No.

DTC Detecting Condition

Trouble Area

24

Open or short in sub–throttle actuator circuit

TRAC fuse

Open or short in BM circuit.

Sub–throttle actuator.

Open or short in sub–throttle actuatorcircuit.

ECU

DIAGNOSTIC CHART

DIAGNOSTIC CHART

BR–186

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BRAKE SYSTEM

TRACTION CONTROL SYSTEM (TRAC)