A/C Relay

Special Functions/ Output Controls

Important: The A/C Relay Command parameter may not change states when using this output control.

This function activates the A/C compressor relay. The normal commanded state of the A/C relay is OFF. The A/C compressor will turn ON/OFF when commanded ON/OFF. The system remains in the commanded state for approximately 5 seconds. The engine control module (ECM) will inhibit the operation of the A/C relay when the ambient air temperature is low.

Aux Heater Relay 1

Special Functions/Output Controls

This function controls the aux heater relay 1.

Aux Heater Relays 2 & 3

Special Functions/Output Controls

This function controls the aux heater relays 2 and 3.

Boost Solenoid

Special Functions/Output Controls

Increases or decreases the turbocharger boost solenoid valve. The device control will not change unless changed or cancelled by the scan tool.

Cooling Fan Relay 1

Special Functions/Output Controls/Cooling Fan

This function controls the low speed cooling fan relay. When commanded ON, the cooling fan will turn ON at low speed for approximately 5 seconds.

Cooling Fan Relays 2 & 3

Special Functions/Output Controls/Cooling Fan

This function controls the high speed cooling fan relay. When commanded ON, the cooling fan will turn ON at high speed.

Cooling Fan Relays 1, 2 & 3

Special Functions/Output Controls/Cooling Fan

This function controls the high speed cooling fan relay. When commanded ON, the cooling fan will turn ON at high speed.

EGR Solenoid

Special Functions/Output Controls

This function opens or closes the exhaust gas recirculation (EGR) solenoid. The EGR solenoid increases or decreases in 10 percent increments. The device control will not change unless changed or cancelled by the scan tool.

Fuel Heater Relay

Special Functions/ Output Controls/ Fuel Heater

Activates the fuel heater relay ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool.

Fuel Pump Relay

Special Functions/ Output Controls/ Fuel Pump

Activates the fuel transfer pump or prime pump (depending on application) ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool.

Gen L-Terminal

Special Functions/ Output Controls

Controls system voltage. Command states include NONE, ON, and OFF. When commanded ON, normal system voltage output is present. When commanded OFF, system voltage output is no longer present, Ignition 1 signal continues to drop, Gen L-Terminal goes to OFF and Gen F-Terminal continues to drop.

Glow Plug Lamp

Special Functions/Output Controls/Dash Lamps & Gauges

Activates the glow plug indicator lamp. The glow plug indicator lamp will remain illuminated until cancelled by the scan tool.

Glow Plug

Special Functions/Output Controls

Activates the Glow Plug Controller ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. Device control is inhibited if the engine is running.

MIL

Special Functions/Output Controls/Dash Lamps & Gauges

Activates the malfunction indicator lamp (MIL). The MIL will remain illuminated until cancelled by the scan tool.

Throttle Blade Control

Special Functions/Engine Speed/Throttle

This function opens or closes the throttle blade. The throttle blade increases or decreases in 10 percent increments. The scan tool initiates the test when the following conditions are met:

Fuel Pump Relay Test

Engine/Actuator Test

This function controls the fuel pump relay.

ACTIVE / INACTIVE.

EGR Solenoid Test

Engine/Actuator Test

This function controls the EGR Solenoid.

ACTIVE / INACTIVE.

Boost Pressure Valve Test

Engine/Actuator Test

This function controls the A/C relay.

ACTIVE / INACTIVE.

A/C Relay Test

Engine/Actuator Test

This function controls the Glow Time relay.

ACTIVE / INACTIVE.

Glow Time Relay Test

Engine/Actuator Test

This function controls the Cooling Fan speed 1, 2 and 3.

ACTIVE / INACTIVE.

Cooling Fan Test

Engine/Actuator Test

This function controls the Cooling Fan speed 1, 2 and 3.

ACTIVE / INACTIVE.

Throttle Solenoid Valve Test

Engine/Actuator Test

This function controls the Throttle Solenoid Valve.

ACTIVE / INACTIVE.

Malfunction Indicator (MI) Test

Engine/Actuator Test

This function controls the malfunction indicator lamp (MIL).

ON / OFF.

Glow Time Telltale Test

Engine/Actuator Test

This function controls the Glow Time Telltale.

ACTIVE / INACTIVE.

Fuel Filter Heater Relay Test

Engine/Actuator Test

This function controls the Fuel Filter Heater Relay.

ACTIVE / INACTIVE.

Add. Heater Relay 1 Test

Engine/Actuator Test

This function controls the ADD Heater relay 1.

ACTIVE / INACTIVE.

Add. Heater Relay 2 Test

Engine/Actuator Test

This function controls the ADD Heater relay 2.

ACTIVE / INACTIVE.