ICU4M

Functions

ICU4M settings and the driver message center are controlled with the + and – switches and the MY INFO switch, mounted on the dash. See Fig.. Tap the MY INFO switch to drill down from each main screen to the submenus contained within it. Use the + and – switches to scroll through screens and select options. Tap the MY INFO switch again to exit each change screen.

Fig. 1, MY INFO Switch

With the parking brake off, only the odometer and alert messages can be displayed. Park the vehicle and set the parking brake to access the parked screens and menus.

Alert Messages

The driver message center displays alert messages when certain conditions occur. They are warnings, cautions, or other messages that require the driver's attention, but not all of them are critical to the operation of the vehicle.

More important messages take priority over less important messages. The order of priority is:

1. parking brake set (with the vehicle moving)

2. parking brake off (with the door open)

3. low oil pressure or high coolant temperature

4. hard brake warnings (if equipped with roll stability advisor)

5. low battery voltage

6. ambient temperature below 35°F (1.7°C)

7. turn signal on

8. incoming instant or Qualcomm messages

9. service warnings

10. no datalink activity

Incoming Message

On vehicles with a Qualcomm onboard communications system, a notification appears on the driver message center whenever a message is received.

This message displays for a preset time period, then returns after a preset interval until it is dismissed by the + and – switches or the MY INFO switch.

Parking Brake On

This warning message and an audible warning come on whenever the parking brake is applied and the vehicle is moving faster than 2 mph (3 km/h). See Fig.. The screen and audible warning go away only when the parking brake is released, or speed is reduced below 2 mph.

Fig. 2, Parking Brake On Alert Message

Low Oil Pressure

This warning message and an audible warning come on whenever the oil pressure falls below the minimum oil pressure, whether the vehicle is idling or in motion. Tap the + and – switches or the MY INFO switch to dismiss the message.

If low oil pressure is detected during the ignition sequence, it displays as an active fault instead of an alert message. After 30 seconds, the message displays again.

High Coolant Temp

This message and an audible warning come on whenever the engine coolant temperature exceeds the maximum allowable temperature.

If high coolant temperature is detected during the ignition sequence, it displays as an active fault instead of an alert message. After 30 seconds, the message displays again.

Low Air Pressure

A pop-up message stating "Brake Air Supply Pressure Low" displays on the ICU4Me screen and an audible warning buzzer sounds when the air pressure in the primary or secondary reservoir has dropped below approximately 70 psi (483 kPa).

Low Voltage

On some vehicles, this optional message and an audible warning come on whenever a low voltage condition is detected.

Turn Signal On

This warning message and audible warning come on whenever the turn signal remains on for four minutes or five miles of travel. To dismiss this message, either turn off the turn signal or tap the + and – switches or the MY INFO switch.

Air Temperature

When the outside air temperature drops below 35°F (1.7°C), a warning text is displayed at one-second intervals for five seconds, and an audible warning will sound. Tap the + and – switches or the MY INFO switch to acknowledge the warning. The alert message will not occur again unless the temperature cycles above 37°F (4°C) and back below 35°F (1.7°C). This warning only occurs while the ignition is on and the parking brake is off.

Service Warnings

Service warning alerts display during the ignition sequence and indicate if a service interval has been reached or exceeded and maintenance is required. The messages may indicate the number of miles (km) or hours until the next required service or, once passed, the number of miles (km) or hours since maintenance should have been performed.

Automated Transmission Display

The ICU4M can display current gear information for vehicles with an automated transmission. The last three digits at the far right on the lower line of the driver message center are reserved for this information.

When a shift request is made by the driver, an up or down arrow is also displayed, depending on the shift direction.

For more information about specific models of automated transmissions, see Chapter 15.

Driving Screens

The following screens are available when the parking brake is off (when the vehicle is mobile).

Tap the MY INFO switch to drill down from each main screen to the submenus contained within it. Use the + and – switches to scroll through screens and select options. Tap the MY INFO switch again to exit each change screen. See Fig..

• Fasten seat belt (rpm<100)

• Fuel economy (rpm>100)

Fig. 3, ICU4M Driving Screens

• Odometer

• Trip distance/hours

• Trip advisory

• Leg distance/hours

• Leg advisory

• Fuel used/average MPG (KM/L)

• Outside air temperature

Favorite Screen

The driver can set a favorite driving screen using the MY INFO switch. Press and hold the lower half of the MY INFO switch for just over one second to set the current screen as the favorite screen. A chirp will sound to verify the screen has been set.

Tap the lower half of the MY INFO switch to access the favorite screen. Tap the MY INFO switch again to leave the favorite screen.

Parked Screens/Menus

Tap the MY INFO switch to drill down from each main screen to the submenus contained within it. Use the + and – switches to scroll through screens and select options. Tap the MY INFO switch again to exit each change screen. Press and hold the + switch or the upper half of the MY INFO switch to reset the counters for trip and fuel information.

The following screens are available when the parking brake is on (when the vehicle is parked). See Fig..

• Odometer

Fig. 4, ICU4M Idle Hours, Trip Information, Fuel Information, and Engine Information Screens

• Trip information including trip miles/hours, idle hours, average speed, leg miles/hours

• Fuel information including fuel used, fuel economy, idle/PTO fuel usage

• Engine information including engine miles/hours, engine/PTO gallons, oil level

• Diagnostic information

• Service information including mileage or time to next service

• Setup information

• Vehicle information including Datalink status, ICU serial number, software version

• Outside air temperature

• Fasten seat belt warning

Trip Information

Trip Information displays the trip miles, trip advisories, idle hours, leg miles, and leg advisories, in that order.

Fuel Information

Fuel information displays total fuel usage since the last reset, fuel mileage, and fuel consumed while idling or running the PTO, in that order.

Engine Information

Engine information displays engine mileage and hours, and total fuel consumption, in that order.

Diagnostic Information

If active fault codes are displayed on the diagnostic information screens, make a note of the fault code and text message, then take the vehicle to an authorized Freightliner service facility See Fig. for a diagram of the diagnostic information screens.

Fig. 5, ICU4M Diagnostic Information and Service Information Screens

Service Information

The Service Information menu displays the next service interval, expressed in either miles or hours. See Fig.. Service intervals can also be deactivated. For programming service intervals, see Setup Information , below.

Setup Information

The Setup Information menu allows the driver to program various features of the ICU4M. See Fig..

Fig. 6, ICU4M Setup Information Screens

The setup features include:

• Service intervals (OFF/MILES/HOURS)

• Outside temperature warning (ON/OFF)

• Target MPG

• LCD lamp (ON/OFF)

• Driver message center brightness

• Language (English/French/Spanish)

• Units of measurement (English/Metric)

• Driver select (ON/OFF)

• Reset parameters to original settings

• Vehicle Information Screens

The vehicle information screens display hardware and software information, including the Freightliner part number and switch ID of the ICU. See Fig..

Fig. 7, ICU4M Vehicle Information Screens