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Activate
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Activate applies to
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Description
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Use
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AC Relay
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Turn Ignition On
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Processor control of the transistor that grounds the output to the relay.
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During fault diagnosis. Checking control module output, electrical circuitry and actuator operation. When output is active, the solenoid clutch should engage. Otherwise, use a test lamp to find the faulty lead/component. The refrigerant circuit must also be OK.
Miscellaneous: Request from ACC/MPC must come before diagnostics are performed.
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EGR Control Valve
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Turn Ignition On
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Processor control of the transistor that grounds the output to the EGR valve.
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During fault diagnosis. Checking control module output, electrical circuitry and actuator operation.
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Glow Request
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Turn Ignition On
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Processor control of the transistor that grounds the output to the Glow control unit.
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Can be used to activate the glow plug control module during fault diagnosis. Check the system voltage while activating to make sure the glow plugs are really working.
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Idle Speed
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Engine running
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A temporarily modified desired value for idle speed control. Engine speed can be modified between 40 rpm and 100 rpm in increments of 10.
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Can be used to run the engine at any speed to detect noise, etc.
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Boost Pressure Solenoid
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Turn Ignition On
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Processor control of the transistor that grounds the output to the solenoid valve.
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During fault diagnosis. Checking control module output, electrical circuitry and actuator operation.
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Fuel Pressure Solenoid 1
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Turn Ignition On
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Processor control of the transistor that grounds the output to the solenoid valve.
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During fault diagnosis. Checking control module output, electrical circuitry and actuator operation.
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Fuel Pressure Solenoid 2
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Turn Ignition On
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Processor control of the transistor that grounds the output to the solenoid valve.
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During fault diagnosis. Checking control module output, electrical circuitry and actuator operation.
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