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9. Powertard Brake System
• The Powertard is activated when all of the following conditions are met with the combination switch placed in the
first stage or second stage.
• Engine speed: 800 to 2400 rpm
• Clutch pedal released (clutch pedal switch: OFF)
• Accelerator pedal released (accelerator pedal switch: ON)
• Transmission in gear (transmission neutral switch: ON)
• Anti-lock brake system not activated (ABS) (Control unit: OFF) (See Gr35E.)
• If any of the above conditions are not met, operation of the Powertard system will be temporarily canceled.
If the engine speed is less than 700 rpm or higher than 2500 rpm although all the other conditions (clutch pedal,
accelerator pedal, and transmission conditions) are met, operation of the Powertard system will be canceled.
• When the vehicle speed exceeds the auto cruise set vehicle speed during driving with the auto cruise engaged,
the Powertard is activated by the control of the engine electronic control unit even if the Powertard switch (combi-
nation switch) is not turned ON. (See Gr13.)
• When the Powertard switch is placed in the first stage, the Powertard is activated to enhance the engine braking
power.
• When the Powertard switch is placed in the second stage, the turbocharger magnetic valve is activated to control
the turbocharger and generate stronger braking power than the first stage.
STRUCTURE AND OPERATION
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