Freightliner Sleeper Exit Door
The sleeper door (Fig. 2.5) is not intended for entry or exit. The door is intended only as a convenient means to stow or remove personal belongings in and from the sleeper area. To open the door from inside, push down on the lever handle located inside the sleeper compartment to the right of the door. The door can be opened from the outside by first opening the baggage door, then pulling the release cable strap just inside on the left of the baggage door opening. To close the door, push it closed until it latches.
Sleeper Luggage Door
To open the sleeper luggage door, pull out on the lower T-handle lever located inside the driver’s side or passenger’s side cab door opening. To close the door, push it closed until it latches.
Freightliner Back-of-Cab Access
When trailer air and electrical connections cannot be reached conveniently from the ground, Federal Motor Carrier Safety Regulations require commercial carriers to provide back-of-cab (BOC) access.
Optional grab handles are mounted either on both cab sidewalls, or on the left sidewall only. See Fig. 2.6. Steps are mounted either on the fuel tank(s) or on metal brackets. When a deck plate is necessary, it is mounted across the top of the frame rails.
Hood Opening and Closing
A grab handle at the front of the hood provides a hand-hold for hood tilting. Two tilt-assist struts help to tilt the hood open, and to return it to the operating position. A damper controls the closing rate of the hood and hood straps prevent the hood from overtravel. In the operating position, the hood is secured by a hold-down latch on each side of the hood.
Freightliner Power Distribution
There are four power distribution modules in the vehicle: the main power distribution module (PDM), the auxiliary PDM, the powertrain PDM, and the powernet distribution box (PNDB). The main PDM contains the circuit breakers and fuses required to protect the vehicle. It is located in the top of the right-hand dash, and is accessed by removing the four fasteners in the top of the dash panel.
The auxiliary PDM is located on the B-pillar access door, behind the driver’s seat. It controls power to the HVAC system, the sleeper, and anti-lock braking. The powertrain PDM is mounted off the driver’s-side frontwall in the engine compartment. It controls power to the engine, aftertreatment system, transmission, and other powertrain-related circuits. The PNDB is mounted on the cab frontwall near the steering column. It supplies power to the powertrain PDM, the main PDM and other cab functions, including the clock.
Freightliner Engine Protection System
See Fig. 4.4 for an explanation of the aftertreatment system (ATS) warning indicators, and actions required to avoid further engine protection steps. The STOP engine lamp illuminates when the engine protection system is activated in one of two ways. On some engines, the engine protection system will derate the engine, allowing it to run at lower rpm and slower vehicle speed. Drive the vehicle to a safe location or to a service facility.
IMPORTANT: Safely bring the vehicle to a stop on the side of the road and shut down the engine as soon as the red light is seen. If the engine shuts down while the vehicle is in a hazardous location, turn the key to the OFF position for a few seconds, then restart the engine and move the vehicle to a safer location.
On other engines, the engine protection system will shut down the engine. It will first derate the engine, then shut it down completely 30 to 60 seconds after the indicator illuminates (depending on the critical fault type) if the condition does not improve. Bring the vehicle to a stop on the side of the road before the engine shuts down. Some vehicles may have a shutdown-override switch, which may be used to momentarily override the shutdown sequence. See Chapter 10 for detailed information regarding the shutdown process.
Fuel/Diesel Exhaust Fluid (DEF) Gauge
The fuel and DEF levels are measured in a dual purpose fuel/DEF gauge. See Fig. 4.13. The diesel fuel level is indicated at the top of the gauge, with a low-fuel warning lamp that illuminates when the diesel fuel level registers 1/8th of capacity. The DEF level is indicated in the lightbar on the lower portion of the gauge. There is a low DEF level warning lamp that illuminates when the DEF level reaches 10% of capacity. See Chapter 11 for details of the exhaust aftertreatment system.
Freightliner Ambient Air Temperature
When the ambient air temperature drops below 35°F (1.7°C), the ICU displays a caution text at 1-second intervals for five seconds and a chime sounds if the ambient temperature alarm is enabled. The driver can acknowledge the message by pressing the mode/reset button. The chime will not sound again unless the temperature cycles above 37°F (4°C) and back below 35°F (1.7°C).
When the parking brake is set, the ambient air temperature display can be changed from °F to °C by changing the MI or KM selection in the SETUP menus. The warning message can be disabled or enabled in the SETUP menus.
Freightliner Diagnostic Screens
The diagnostic screens are used by trained technicians to retrieve fault codes and other diagnostic information pertaining to the vehicle. Active faults are current problems that require attention. If active fault codes display during start-up or at any other time, make a note of the fault code and text message, then call an authorized Freightliner service facility for assistance.
During vehicle start-up, with the parking brake set, the ICU4 will display any active fault codes for three seconds each until the parking brake is released. If service cycle screens are enabled and service distance or time has been exceeded, the text SERVICE HOUR/MI (KM) will be displayed to inform the driver that the service interval has been exceeded and vehicle service is required. See Fig. 4.8 for a the diagnostic and engine display screens. To access the diagnostic screens, press and hold the mode/reset button when the DIAG screen is displayed.
If the word SERVICE appears on the diagnostic message display screen, service cycle screens are enabled. Either service miles or hours can be enabled, but not both. Hold the mode/reset button to display miles or hours remaining until the next scheduled service. If MI (KM) appears on the DIAG screen, service miles are enabled; if HOURS appears on the screen, service hours are enabled. If service miles or hours have been exceeded, the number flashes to indicate service is overdue.
Freightliner Truck 22SD Driver Manual PDF For Free