Freightliner CORONADO 122SD Driver's Manual

CORONADO

Part Number STI 494 3

Publication Number STI-494-6

Driver’s Manual

Introduction

This manual provides information needed to operate and understand the vehicle and its components. More detailed information is contained in the Owner’s Warranty Information for North America booklet, and in the vehicle’s workshop and maintenance manuals.

Custom-built Freightliner vehicles are equipped with various chassis and cab components. Not all of the information contained in this manual applies to every vehicle. For details about components in your vehicle, refer to the chassis speciﬁcation pages included in all new vehicles and to the vehicle speciﬁcation decal, located inside the vehicle.

For your reference, keep this manual in the vehicle at all times.

IMPORTANT: Descriptions and speciﬁcations in this manual were in effect at the time of printing. Freightliner Trucks reserves the right to discontinue models and to change speciﬁcations or design at any time without notice and without incurring obligation. Descriptions and speciﬁcations contained in this publication provide no warranty, expressed or implied, and are subject to revisions and editions without notice.

Environmental Concerns and Recommendations

Whenever you see instructions in this manual to discard materials, you should ﬁrst attempt to reclaim and recycle them. To preserve our environment, follow appropriate environmental rules and regulations when disposing of materials.

Event Data Recorder

This vehicle is equipped with one or more devices that record speciﬁc vehicle data. The type and amount of data recorded varies depending on how the vehicle is equipped (such as the brand of engine, if an air bag is installed, or if the vehicle features a collision avoidance system, etc.).

This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record data in certain crash or near-crash situations, such as air bag deployment or hitting a road obstacle, that will assist in understanding how a vehicle’s systems

performed. The EDR is designed to record data related to vehicle dynamics and safety systems for approximately 60 seconds. This data can help provide a better understanding of the circumstances in which crashes and injuries occur. Data recorded includes the following items:

•

how various systems in the vehicle were operating

•

engine system information

•

how far (if at all) the driver was depressing the accelerator

•

if the driver was depressing the brake pedal

•

how fast the vehicle was traveling

NOTE: Data is not recorded by the EDR under normal driving conditions. Personal data such as name, gender, age, and crash location are not recorded. However, other parties such as law enforcement could combine the EDR data with the type of personally identifying data routinely acquired during a crash investigation.

To read data recorded by an EDR, special equipment is required, and access to the vehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties that have the special equipment, such as law enforcement, can read the information if they have access to the vehicle or the EDR.

Emissions and Fuel Efficiency Compliance

This vehicle must be regularly inspected and maintained as indicated in the 122SD and Coronado 132

Maintenance Manual, and in the Pre- and Post-Trip Inspections and Maintenance chapter in this manual,

in order to continue satisfactory performance and ensure coverage of the vehicle under the manufacturer’s warranty. Many maintenance procedures ensure that the vehicle and engine continue to comply with applicable emissions standards. Maintenance procedures, using components engineered to comply with greenhouse gas emissions and fuel efficiency regulations, may be performed by an authorized Daimler Trucks North America dealer, an independent outlet, or the vehicle owner or operator.

The vehicle owner is responsible for determining the suitability of replacement components to maintain

Foreword

STI-494-7 (2/15)

Part Number STI 494 3

Printed in U.S.A.

compliance with federal and local jurisdictional regulations. Components including, but not limited to, tires, cab/sleeper side extenders, chassis fairings, bumper, hood, vehicle speed limiters, and idle reduction timers are speciﬁcally designed and manufactured to exacting standards for regulatory fuel efficiency and greenhouse gas emissions compliance. It is important that these components are always replaced with components that meet or exceed the performance of the originally installed components.

Customer Assistance Center

Having trouble ﬁnding service? Call the Customer Assistance Center at 1-800-385-4357 or 1-800-FTLHELP. Call night or day, weekdays or weekends, for dealer referral, vehicle information, breakdown coordination, or Fleetpack assistance. Our people are knowledgeable, professional, and committed to following through to help you keep your truck moving.

Reporting Safety Defects

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Daimler Trucks North America LLC.

If the NHTSA receives similar complaints, it may open an investigation, and if it ﬁnds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or Daimler Trucks North America LLC.

To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at 1-888-327-4236 (TTY: 1-800-424-9153); go to

www.safercar.gov;or

write to: Administrator, NHTSA, 1200 New Jersey Avenue, SE, Washington, DC 20590. You can also obtain other information about motor vehicle safety from

www.safercar.gov.

Canadian customers who wish to report a safetyrelated defect to Transport Canada, Defect Investigations and Recalls, may telephone the toll-free

hotline 1-800-333-0510, or contact Transport Canada by mail at: Transport Canada, ASFAD, Place de Ville Tower C, 330 Sparks Street, Ottawa, Ontario, Canada K1A 0N5.

For additional road safety information, please visit the Road Safety website at:

www.tc.gc.ca/

roadsafety

company.

No part of this publication, in whole or part, may be translated, reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Daimler Trucks North America LLC. For additional information, please contact Daimler Trucks North America LLC, Service Systems and Documentation, P.O. Box 3849, Portland OR 97208–3849 U.S.A. or refer to

www.Daimler-TrucksNorthAmerica.comand www.FreightlinerTrucks.com.

Foreword

Contents

Chapter Page

Introduction, Environmental Concerns and Recommendations, Event Data Recorder, Emissions and Fuel Efficiency Compliance,

Customer Assistance Center, Reporting Safety Defects .................... Foreword

1 Vehicle Identiﬁcation ...................................................... 1.1

2 Vehicle Access .......................................................... 2.1

3 Electrical System ........................................................ 3.1

4 Instruments ............................................................. 4.1

5 Driver Controls .......................................................... 5.1

6 Seats and Restraints ..................................................... 6.1

7 Climate Control .......................................................... 7.1

8 Cab Features ........................................................... 8.1

9 Engine Starting, Operation, and Shutdown .................................... 9.1

10 Optional Engine Systems ................................................. 10.1

11 Emissions and Fuel Efficiency ............................................. 11.1

12 Brake Systems ......................................................... 12.1

13 Manual Transmissions and Clutch .......................................... 13.1

14 Automated and Automatic Transmissions .................................... 14.1

15 Drive Axles ............................................................ 15.1

16 Steering System ........................................................ 16.1

17 Fifth Wheels ........................................................... 17.1

18 Trailer Couplings ........................................................ 18.1

19 Pre- and Post-Trip Checklists ............................................. 19.1

20 Pre- and Post-Trip Inspections and Maintenance .............................. 20.1

21 Cab Appearance ........................................................ 21.1

22 Headlight Aiming ........................................................ 22.1

23 In an Emergency ....................................................... 23.1

Index .................................................................. I.1

Vehicle Identiﬁcation

Component Information Label ....................................................... 1.1

Federal Motor Vehicle Safety Standard Labels .......................................... 1.1

Canadian Motor Vehicle Safety Standard Labels ........................................ 1.1

Component GWR Label ............................................................ 1.1

Emissions Labels ................................................................. 1.2

Component Information Label

NOTE: Labels shown in this chapter are examples only. Actual speciﬁcations may vary from vehicle to vehicle.

The component information label lists the vehicle model, identiﬁcation number, and major component models. It also lists the major assemblies and installations shown on the chassis speciﬁcation sheet. One copy of the component information label is attached to the inside of the glove box; another copy is inside the rear cover of the Owner’s Warranty Infor- mation for North America booklet. An illustration of the label is shown in

Fig. 1.1.

Federal Motor Vehicle Safety Standard Labels

NOTE: Due to the variety of Federal Motor Vehicle Safety Standard (FMVSS) certiﬁcation requirements, not all of the labels shown will apply to your vehicle.

Tractors with or without ﬁfth wheels purchased in the U.S. are marked as certiﬁed by means of an FMVSS certiﬁcation label. See

Fig. 1.3. This label is attached

to the driver-side B-pillar, as shown in

Fig. 1.4.

The tire and rim portion of the FMVSS certiﬁcation label certiﬁes suitable tire and rim combinations that can be installed on the vehicle, for the given gross axle weight rating. Tires and rims installed on the vehicle at the time of manufacture may have a higher load capacity than that certiﬁed by the tire and rim label. If the tires and rims currently on the vehicle have a lower load capacity than that shown on the tire and rim label, then the tires and rims determine the load limitations on each of the axles.

Trucks built without a cargo body that are intended for service in the U.S. have an incomplete vehicle certiﬁcation label attached by the ﬁnal-stage manufacturer. See

Fig. 1.5. This label will be attached to

the incomplete vehicle document included with the vehicle, and certiﬁes that the vehicle conforms to all applicable FMVSS regulations in effect on the date of completion.

Canadian Motor Vehicle Safety Standard Labels

In Canada, tractors with ﬁfth wheels are marked as certiﬁed by means of a statement of compliance label with the Canadian National Safety Mark attached to the driver-side door frame B-pillar. See

Fig. 1.6.

Trucks built without a cargo body and tractors built without a ﬁfth wheel that are intended for service in Canada have an incomplete vehicle certiﬁcation label attached to the driver-side B-pillar. After completion of the vehicle, a complete certiﬁcation label must be attached by the ﬁnal-stage manufacturer to certify that the vehicle conforms to all applicable Canada Motor Vehicle Safety Standard (CMVSS) regulations in effect on the date of completion.

Component GWR Label

The component GWR label is located on the passenger-side B-pillar. The label provides maximum GWR ratings for each component.

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Fig. 1.1, Component Information Label

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Fig. 1.2, Component GWR Label

Vehicle Identiﬁcation

1.1

See Fig. 1.2 for a typical component GWR label.

Emissions Labels

Aftertreatment System Indicators Label

Engines and vehicles manufactured after December 31, 2006 and domiciled in the U.S. or Canada are required to meet all EPA regulations effective as of the vehicle build date, and are equipped with an emission aftertreatment system (ATS). Vehicles domiciled outside of the U.S. and Canada may not have aftertreatment equipment, depending upon local statutory emissions guidelines. See

Table 1.1.

A warning label on the driver-side visor contains important warning indicators in the instrument cluster that pertain to the ATS. See

Fig. 1.7.

It is a violation of U.S. federal law to alter exhaust plumbing, ATS, or other components in any way that would bring the engine/vehicle out of compliance with certiﬁcation requirements [Ref: 42 U.S.C. S7522(a) (3)]. It is the owner’s responsibility to maintain the vehicle so that it conforms to EPA regulations.

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Fig. 1.3, Vehicle Certiﬁcation Label

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1. EPA Noise Emission Control Label

2. FMVSS Certiﬁcation Label

Fig. 1.4, Label Locations

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02/28/2012

Fig. 1.5, Incomplete Vehicle Certiﬁcation Label

f080024

10/10/2006

Fig. 1.6, Canadian National Safety Mark

Vehicle Identiﬁcation

1.2

Applicable Emissions System Based on Build Date and EPA Regulations

Build Date Regulation: Emissions Components

January 1, 2010–December 31, 2012

EPA10 (reduce NOx emissions to 0.2 g/bhp-hr): Aftertreatment device (ATD) containing a diesel particulate ﬁlter that traps soot and ash, with selective catalyst reduction (SCR) technology that utilizes diesel exhaust ﬂuid (DEF) to convert NOx to nitrogen and water vapor.

From March 5, 2012

GHG14: Aerodynamic and fuel efficiency components including, but not limited to, tires, cab/sleeper side extenders, chassis fairings, bumper, hood, vehicle speed limiters, and idle reduction timers speciﬁcally designed to meet regulatory fuel efficiency and greenhouse gas emissions standards.

Table 1.1, Applicable Emissions System Based on Build Date and EPA Regulations

EPA Noise Emission Control Label

A vehicle noise emission control label (Fig. 1.8)is located on the driver-side B-pillar as shown in

Fig. 1.4. It is the owner’s responsibility to maintain

the vehicle so that it conforms to EPA regulations.

DPF Regen Needed

Hot Exhaust

DEF Refill Needed

Diesel Particulate Filter (DPF) regeneration is needed.

If flashing, regenerate as soon as possible. Engine derate possible.

Hot exhaust can cause fire.

Keep flammables and people away

from exhaust.

Diesel Exhaust Fluid (DEF) level is low. Engine derate likely.

Refill tank with certified DEF.

24−01656−000

IMPORTANT

DEF

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See operator’s manual for complete instructions.

Fig. 1.7, ATS Indicators

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f080026

24−00273−020

VEHICLE NOISE EMISSION CONTROL INFORMATION

FREIGHTLINER CORPORATION THIS VEHICLE CONFORMS TO U.S. EPA REGULATIONS FOR NOISE EMISSION APPLICABLE TO MEDIUM AND HEAVY TRUCKS. THE FOLLOWING ACTS OR THE CAUSING THEREOF BY ANY PERSON ARE PROHIBITED BY THE NOISE CONTROL ACT OF 1972: A. THE REMOVAL OR RENDERING INOPERATIVE, OTHER THAN FOR PURPOSES OF MAINTENANCE, REPAIR, OR REPLACEMENT, OF ANY NOISE CONTROL DEVICE OR ELEMENT OF DESIGN (LISTED IN THE OWNER’S MANUAL) INCORPORATED INTO THIS VEHICLE IN COMPLIANCE WITH THE NOISE CONTROL ACT. B. THE USE THIS VEHICLE AFTER SUCH DEVICE OR ELEMENT OF DESIGN HAS BEEN REMOVED OR RENDERED INOPERATIVE.

DATE OF MANUFACTURE

01/96

Fig. 1.8, Vehicle Noise Emission Control Label

Vehicle Identiﬁcation

1.3

IMPORTANT: Certain Freightliner incomplete vehicles may be produced with incomplete noise control hardware. Such vehicles will not have a vehicle noise emission control information label. For such vehicles, it is the ﬁnal-stage manufacturer’s responsibility to complete the vehicle in conformity to U.S. EPA regulations (40 CFR Part

205) and label it for compliance.

Vehicle Emission Control Information Label

Model year 2013 and later vehicles meet additional requirements as speciﬁed by federal greenhouse gas and fuel efficiency regulations (GHG14). These vehicles are equipped with components that increase fuel efficiency and reduce GHG emissions. Components may include, but are not limited to, low rolling resistance tires; aerodynamic devices such as hood, cab side extenders, and fuel tank fairings; vehicle speed limiters; and idle shutdown timers.

A Vehicle Emission Control Information Label is located on the driver-side door. See

Fig. 1.9.Itisthe

owner’s responsibility to maintain the vehicle so that it conforms to EPA and NHTSA regulations.

Certiﬁed Clean Idle Label

The California Air Resources Board (CARB) requires model year 2008 and newer heavy-duty diesel engines to be equipped with a non-programmable engine shutdown system that automatically shuts down the engine after ﬁve minutes of idling in order to limit emissions of particulate matter and NOx.

Certiﬁed vehicles are equipped with a label placed near the bottom edge of the driver-side door. See

Fig. 1.10.

f080181

02/29/2012

MANUFACTURED BY: VIN: VEH FAMILY CD: GVWR−KG GVWR−LBS

REGULATORY CLASS:

EMISSION CONTROL IDENTIFIERS:

DATE OF MANUFACTURE:

VEHICLE EMISSION CONTROL INFORMATION

THIS VEHICLE COMPLIES WITH U. S. EPA REGULATIONS FOR XXXX HEAVY DUTY VEHICLES. SEE OWNER’S MANUAL FOR PROPER MAINTENANCE OF THIS VEHICLE. U PART NO. 24−01177−060 REV A

Fig. 1.9, Vehicle Emission Control Information Label

CERTIFIED

CLEAN IDLE

02/20/2012 f080179

Fig. 1.10, CARB Clean Idle Label

Vehicle Identiﬁcation

1.4

Vehicle Access

Cab Door Locks and Handles ....................................................... 2.1

Grab Handles and Access Steps ..................................................... 2.1

Cab-to-Sleeper Access ............................................................. 2.3

Sleeper Exit Door ................................................................. 2.3

Sleeper Luggage Door ............................................................. 2.4

Back-of-Cab Access ............................................................... 2.4

Hood Opening and Closing ......................................................... 2.5

Cab Door Locks and Handles

One common key operates the ignition switch and all of the door locks.

IMPORTANT: Each key is numbered. Record the number so a duplicate key can be made, if needed.

To unlock the driver’s door from outside the cab, insert the key in the lockset and turn it one-quarter turn clockwise. See

Fig. 2.1. To remove the key, turn it

counterclockwise to the original position. Pull out on the door pull handle to open the door.

To unlock the passenger’s door from outside the cab, insert the key in the lockset and turn it one-quarter turn counterclockwise. Turn the key clockwise to the original position to remove it.

NOTE: The cab door locks can be operated when the doors are open.

To lock a door from outside the cab, insert the key in the lockset and turn it in the direction opposite to the unlocking direction (counterclockwise for the driver’s door, clockwise for the passenger’s door). Close the door if it is open.

To lock either door from inside the cab, push the lock button downwards. See

Fig. 2.2.

To open the door from the inside, lift up on the door lever. This will unlatch the door whether or not it is locked.

Grab Handles and Access Steps

WARNING

Wet or dirty shoe soles greatly increase the chance of slipping or falling. If your soles are wet or dirty, be especially careful when climbing onto, or down from, the back-of-cab area.

Always maintain three-point contact with the back-of-cab access supports while entering and exiting the back-of-cab area. Three-point contact means both feet and one hand, or both hands and one foot, on the grab handles, steps, and deck plates. Other areas are not meant to support back-of-cab access, and grabbing or stepping in the wrong place could lead to a fall, and personal injury.

Be careful not to get hands or feet tangled in hoses or other back-of-cab equipment. Carelessness could cause a person to trip and fall, with possible injury.

Entering the Driver Side

When entering the cab from the driver side, use the grab handle and access steps as follows:

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f602388

1. Lockset 2. Door Pull Handle

Fig. 2.1, Exterior Door Handle

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1. Lock Button

2. Integral Door Upper Grab Handle

3. Electric Door Lock

4. Interior Door Handle

Fig. 2.2, Door Interior

Vehicle Access

2.1

Open the driver side door, and place anything that you are carrying in the cab.

Using both hands, grasp the grab handle that is on the B-pillar, or use your left hand on the integral door lower grab handle. See

Fig. 2.3. Reach

up as far as is comfortable.

Place your right foot on the bottom step, and pull yourself up. Move your left hand to the integral door upper grab handle.

Place your left foot on the top step.

Grasp the steering wheel with your left hand, and step up.

Step into the cab with your right foot ﬁrst, and grasp the steering wheel with your right hand.

Exiting the Driver Side

Exit the cab from the driver side as follows:

IMPORTANT: Do not attempt to exit the cab while carrying any items in your hands.

Grasp the steering wheel with both hands, place your left foot on the top step, then stand on the threshold facing into the cab.

Using your right hand, grasp the grab handle, located on the B-pillar.

Move your right foot to the bottom step.

Move your left hand to the integral door lower grab handle.

Step to the ground with your left foot ﬁrst.

Entering the Passenger Side

When entering the cab from the passenger side, use the grab handles and access steps as follows:

Open the passenger-side door, and place anything that you are carrying in the cab.

Using your left hand, grasp the grab handle that’s on the rear of the door opening. See

Fig. 2.4.

Using your right hand, grasp the integral door lower grab handle.

Place your right foot on the bottom step, and step up to the upper step with your left foot.

Place your right foot on the top step, and step up.

Move your right hand to the upper grab handle on the windshield post.

Step into the cab with your left foot ﬁrst.

Exiting the Passenger Side

Exit the cab from the passenger side as follows:

IMPORTANT: Do not attempt to exit the cab while carrying any items in your hands.

Using both hands, grasp the grab handle thats on the windshield post, and place your right foot on the top step while standing up from the seat facing inward.

Place your left foot on the bottom step.

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f602390

1. Integral Door Lower Grab Handle

2. Integral Door Upper Grab Handle

3. Steering Wheel

4. B-Pillar Grab Handle

Fig. 2.3, Driver-Side Steps and Grab Handle

Vehicle Access

2.2

Move your left hand to the lower grab handle located at the rear edge of the door opening. See

Fig. 2.4.

Move your right hand to the integral door lower grab handle.

Step to the ground with your right foot ﬁrst.

Cab-to-Sleeper Access

To open the sleeper access on vehicles with vinyl sleeper curtains, unzip the sleeper curtains. If desired, unsnap the curtains all the way around the sides and top, and remove the curtains.

To open the sleeper access on vehicles with velour sleeper curtains, unfasten the snaps at one side, then push the curtain to the opposite side.

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.

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1. Lower Grab Handle

2. Upper Grab Handle

3. Integral Door Upper Grab Handle

4. Integral Door Lower Grab Handle

Fig. 2.4, Passenger-Side Steps and Grab Handles

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09/21/2009

1. Sleeper Door

2. Luggage Compartment Door

Fig. 2.5, Sleeper Doors

Vehicle Access

2.3

IMPORTANT: The sleeper doors are two-stage latching. When closing the doors, ensure that they are completely latched to prevent wind noise and water intrusion.

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.

Back-of-Cab Access

WARNING

External surfaces of the exhaust system remain hot after the engine has been shut down. When accessing the back of the cab or sleeper, do not touch any part of the exhaust system, or severe burns could occur.

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.

IMPORTANT: Climb onto, and down from, backof-cab access facing in toward the vehicle, as you would on a ladder. Do not climb up or down facing out away from the vehicle.

WARNING

Wet or dirty shoe soles greatly increase the chance of slipping or falling. If your soles are wet or dirty, be especially careful when climbing onto, or leaving, the back-of-cab area.

ping in the wrong place could lead to a fall, and personal injury.

Be careful not to get hands or feet tangled in hoses or other back-of-cab equipment. Carelessness could cause a person to trip and fall, with possible injury.

Climbing Up to Back-of-Cab

When climbing onto the deck plate, do the following:

Grasp the BOC grab handle with both hands. Reach up as far as is comfortable.

Place one foot on the bottom step and pull yourself up.

Place your other foot on the top step.

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1. Lower Step

2. Upper Step

3. Left-Hand BOC Grab Handle

4. Right-Hand BOC Grab Handle

5. Deck Plate

Fig. 2.6, Back-of-Cab (BOC) Access

Vehicle Access

2.4

Move your lower hand to a higher position on the grab handle.

Step onto the deck plate.

Climbing Down from Back-of-Cab

To climb down from the back-of-cab area:

Grasp the BOC grab handle with both hands.

Step one foot at a time onto the top step.

Move your upper hand to a lower position on the grab handle.

Move one foot to the bottom step.

Move your upper hand to a lower position on the grab handle.

Step to the ground with your upper foot ﬁrst.

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.

To Tilt the Hood

Apply the parking brakes.

Release both hood hold-down latches by pulling the ends outward.

NOTICE

Do not let the hood free-fall to the full-open position. To do so could cause damage to the hood or hood straps.

Using the bumper step and grab handle, slowly tilt the hood until the straps support it. See

Fig. 2.7.

To Return the Hood

Grasp the grab handle, and lift the hood to the just-over-center position.

Make sure the hood is ﬂush with the cowl, then secure the hood by engaging both hood holddown latches.

IMPORTANT: Make sure that both hold-down latches are fully engaged before operating the vehicle.

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Fig. 2.7, Hood Tilting

Vehicle Access

2.5

Electrical System

Vehicle Power Supply ............................................................. 3.1

Vehicle Power Supply

WARNING

Do not attempt to modify, add, splice, or remove electrical wiring on this vehicle. Doing so could damage the electrical system and result in a ﬁre that could cause serious personal injury or property damage.

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.

Load Disconnect Switch

WARNING

Turning the load disconnect switch to the OFF position does not disconnect the connection between the battery and the starter. To work on the vehicle safely, the negative leads must be disconnected from the battery.

The load disconnect switch is used to avoid excessive draw on the battery when the vehicle is parked for an extended period of time. See

Fig. 3.1. When

the load disconnect switch is set to OFF, it signals the PNDB to disconnect battery power to powertrain and accessory loads. The power to the

aftertreatment-system control module is disconnected after the DEF purge function is completed.

The load disconnect switch is mounted in one of two locations:

•

inside the cab on the left side of the driver’s seat (left-hand-drive vehicle);

•

on the battery box

IMPORTANT: The ignition should be turned OFF before turning the load disconnect switch to ON or OFF.

Low Voltage Disconnect, Optional

The optional Sure Power Low Voltage Disconnect (LVD) system monitors battery power when accessories are being used while the engine is shut down. The system automatically turns off cab and sleeper accessories when voltage drops to 12.3 volts, to ensure that there is enough battery power to start the vehicle. An alarm sounds for one minute before accessories are turned off. If no action is taken within that minute, the LVD module will shut off power to predetermined cab and sleeper circuits. These circuits will remain off until the LVD measures 13.0 volts applied to the system, which can be achieved by starting the engine. After the engine is started, the system will reset.

Vehicles are equipped with an LVD label on the drivers-side sun visor, indicating the presence of the system.

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Fig. 3.1, Load Disconnect Switch

Electrical System

3.1

Battery Access

The batteries may be located below the driver’s door, underneath the steps. To access the batteries located under the steps, turn the latch on the front of the battery-box cover clockwise to release the catch, then lift the cover and step assembly upwards and outwards to expose the plastic battery box. Release the catch on the plastic cover, then remove it to access the batteries. See

Fig. 3.2.

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1. Latch

Fig. 3.2, Battery Compartment (under driver’s door)

Electrical System

3.2

Instruments

Instrumentation Control Units ....................................................... 4.1

Warning and Indicator Lights ........................................................ 4.1

Standard Instruments .............................................................. 4.8

Optional Instruments ............................................................. 4.10

Driver Message Center ........................................................... 4.11

Roll Stability System ............................................................. 4.25

Overhead Instrument Panel ........................................................ 4.27

Instrumentation Control Units

The instrument control unit (ICU) provides the driver with engine and vehicle information. It is comprised of standard and optional gauges, an audible warning, a driver message center, and a lightbar containing warning and indicator lamps (also known as telltales). Warning and indicator lamps illuminate in red (danger), amber (caution), green (status advisory), or blue (high-beam headlights active).

122SD and Coronado vehicles are equipped with an ICU4, ICU4M, or ICU4Me. See

Fig. 4.1, Fig. 4.2,

and

Fig. 4.3 for typical ICU layouts.

The following headings in this chapter provide additional information and operating instructions for ICU components:

•

"Warning and Indicator Lights"

•

"Standard Instruments"

•

"Optional Instruments"

•

"Driver Message Center"

Ignition Sequence

When the ignition is turned on, the ICU runs a selfcheck. Observing the ignition sequence is a good way to ensure the ICU is functioning properly.

IMPORTANT: Do not crank the engine until the ICU self-check is complete.

NOTE: Air gauges do not complete a sweep of their dials during the ignition sequence.

When the ignition is turned on, the following actions should occur:

•

electronic gauges complete a full sweep of their dials

•

warning and indicator lamps illuminate, then are extinguished

•

audible alert sounds for approximately four seconds or until sufficient air pressure builds up in the primary and secondary air systems

•

DEF level indicator illuminates all segments green, then turns them off one at a time before turning the leftmost segment amber and then red

•

Freightliner logo displays on the ICU4Me driver message center for two seconds.

•

software revision level of the ICU is displayed under the Freightliner logo on the driver message center, followed by any active faults

NOTE: If active faults are present, take the vehicle to an authorized Freightliner service facility as soon as possible.

If the ICU receives active fault codes, it displays them one after the other until the parking brake is released or the ignition is turned off. Once the parking brake is completely released, the ICU displays the odometer. If there are no active faults, the ICU displays the odometer after the self-check completes.

When the self-check is complete on an ICU4M, the fasten seat belt screen displays if the engine is off. If the engine is running, the idle hours screen displays.

Audible Alerts

An audible alert sounds during the ignition sequence and whenever one of the following conditions exists:

•

Engine oil pressure falls below the minimum preset value.

•

Coolant temperature rises above the maximum preset value.

•

Air pressure falls below approximately 70 psi (483 kPa).

•

Parking brake is set with the vehicle moving faster than two miles per hour.

•

System voltage falls below 12 volts.

•

Door is open with the parking brake off.

•

Headlights are on with the door open and the ignition off.

•

Occupied seat belts are not fastened and the parking brake is not set (optional).

•

Outside temperature falls below 35°F (1.7°C) (optional).

Warning and Indicator Lights

The ICU lightbar has three to four rows of warning and indicator lights with icon symbols (also known as telltales). The positions of the lights may vary for the different ICUs, but the symbols are standard for all applications. See

Table 4.1 for a listing of standard

and commonly used warning and indicator lamps.

Instruments

4.1

Warning and indicator lamps illuminate in red (danger), amber (caution), green (status advisory), or blue (high-beam headlights active).

IMPORTANT: Depending upon local jurisdictional emissions guidelines, vehicles and/or engines that are domiciled outside of the U.S. and Canada may not be compliant with EPA10 or GHG14 regulations. Noncompliant vehicles may not be equipped with all of the lamps shown in

Table 4.1.

IMPORTANT: If any red or amber warning and indicator lamps do not illuminate during the ICU self-check or do not go out after the self-check completes, take the action outlined in

Table 4.1,

or take the vehicle to an authorized Freightliner service facility as soon as possible.

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DEF

10 11

1. Engine Oil Temperature Gauge

2. Lightbar

3. Engine Oil Pressure Gauge

4. Coolant Temperature Gauge

5. Forward Drive Axle Oil Temperature Gauge

6. Battery Voltage Gauge

7. Rear Drive Axle Oil Temperature Gauge

8. Driver Message Center

9. Mode/Reset Button

10. Tachometer

11. Speedometer

12. Transmission Oil Temperature Gauge

13. Primary Air Pressure Gauge

14. Secondary Air Pressure Gauge

15. Fuel/DEF Level Gauge

16. Application Air Pressure Gauge

17. Application Air Pressure Gauge

Fig. 4.1, Typical ICU4 Layout

Instruments

4.2

f611069

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DEF

910

1. Engine Oil Temperature Gauge

2. Lightbar

3. Engine Oil Pressure Gauge

4. Coolant Temperature Gauge

5. Forward Drive Axle Oil Temperature Gauge

6. Battery Voltage Gauge

7. Rear Drive Axle Oil Temperature Gauge

8. Driver Message Center

9. Tachometer

10. Speedometer

11. Transmission Oil Temperature Gauge

12. Primary Air Pressure Gauge

13. Secondary Air Pressure Gauge

14. Fuel/DEF Level Gauge

15. Application Air Pressure Gauge

16. Application Air Pressure Gauge

Fig. 4.2, Typical ICU4M Layout

Instruments

4.3

Common Warning and Indicator Lamps

Lamp Description Color

STOP

STOP Engine

Indicates a serious fault that requires engine shutdown immediately. The engine protection system will reduce the maximum engine torque and speed, and, if the condition does not improve, will shut down the engine within 30 to 60 seconds.

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.

Red

02/20/2013 f611204

1. Application Air Pressure Gauge

2. Suspension Air Pressure Gauge

3. Transmission Oil Temperature Gauge

4. Turbo Pressure Gauge

5. Lightbar

6. Driver Message Center

7. Tachometer and Coolant Temperature Gauge

8. Fuel/DEF Level Gauge

9. Speedometer and Engine Oil Pressure Gauge

10. Primary Air Pressure Gauge

11. Secondary Air Pressure Gauge

12. Front Axle Temperature Gauge

13. Rear Axle Temperature Gauge

Fig. 4.3, ICU4Me Instrument Cluster

Instruments

4.4

Common Warning and Indicator Lamps

Lamp Description Color

High Coolant Temperature

Indicates the coolant temperature is above the maximum allowable temperature.

Red

Low Air Pressure

Indicates air pressure in the primary or secondary reservoir has dropped below approximately 70 psi (483 kPa).

Low Engine Oil Pressure

Indicates the engine oil pressure is below the minimum allowable pressure.

Transmission Overheat Indicates high transmission temperature.

Parking Brake Indicates the parking brake is engaged.

Low Battery Voltage Indicates that battery voltage is 11.9 volts or less.

Unfastened Seat Belt

Activates with an audible alert when the system detects that the parking brake is off and the driver seat belt is not fastened on some vehicles. On other vehicles, this lamp illuminates for 15 seconds when the ignition is ﬁrst turned on.

CHECK

CHECK Engine

Indicates an engine condition (low oil pressure, low coolant level, high coolant temperature, high DPF soot level, or uncontrolled DPF regeneration) that requires correction. Correct the condition as soon as possible. If the condition worsens, the STOP engine lamp will illuminate.

Amber

High Exhaust System Temperature (HEST)

Slow (10-second) ﬂashing indicates a regeneration (regen) is in progress.

IMPORTANT: When the HEST lamp is illuminated, do not park the vehicle near ﬂammable material.

Solid illumination indicates high exhaust temperatures at the outlet of the tail pipe when speed is below 5 mph (8 km/h).

Diesel Particulate Filter (DPF) Status

Solid illumination indicates a regen is required. Change to a more challenging duty cycle (such as highway driving ) to raise exhaust temperatures for at least twenty minutes, or perform a parked regen.

Blinking indicates that a parked regen is required immediately. An engine derate and shutdown will occur.

Malfunction Indicator Lamp (MIL)

Indicates an emissions-related fault. See the engine operation manual for details.

Instruments

4.5

Common Warning and Indicator Lamps

Lamp Description Color

Vehicle ABS

Momentary illumination indicates the vehicle ABS is engaged.

Solid illumination indicates a problem with the vehicle ABS. Repair the ABS immediately to ensure full braking capability.

Amber

Trailer ABS

Momentary illumination indicates the trailer ABS is engaged.

Solid illumination indicates a problem with the trailer ABS. Repair the ABS immediately to ensure full braking capability.

CHARGE

No Charge

Indicates the alternator is not properly powering the electrical system.

Water in Fuel

Indicates the fuel may contain water. Drain any water collected in the fuel/water separators.

Fuel Filter Restriction Indicates the fuel ﬁlter is clogged and requires service.

IDLE

MGMT

Optimized Idle Indicates optimized idle is enabled.

Check Transmission Indicates an undesirable transmission condition.

WAIT

TO START

Wait To Start (EPA10)

Indicates that the system is preventing the starter from cranking. This can occur when the ignition switch is turned to START before the gauge sweep has completed, or if the starter has overheated.

Turn the ignition switch back to ON, wait for the lamp to go out, then turn the ignition switch to START again.

START

BLOCKED

Start Blocked (GHG14)

Indicates that the system is preventing the starter from cranking. This can occur when the ignition switch is turned to START before the gauge sweep has completed, or if the starter has overheated.

NOTE: Illumination of the Start Blocked lamp does not indicate a problem with the starter.

Turn the ignition switch back to ON, wait for the lamp to go out, then turn the ignition switch to START again.

WHEEL

SPIN

Wheel Spin

Flashing indicates the ATC system is active, or the ATC button has been pressed to allow wheel slip.

Solid illumination indicates a problem with the ATC system. Repair the ATC system immediately to ensure full braking capability.

Instruments

4.6

Common Warning and Indicator Lamps

Lamp Description Color

Roll Stability

Momentary illumination indicates that a stability event has occurred.

On vehicles that are also equipped with ATC, ﬂashing indicates the ATC button has been pressed to allow wheel slip.

Amber

Hill Start Aid (HSA) Override

Indicates the HSA switch has been pressed to override the hill start assist feature.

Engine Brake Indicates the engine brake is enabled.

Green

Left-Turn Signal

Flashing indicates the outside left-turn signal lights are activated.

Right-Turn Signal

Flashing indicates the outside right-turn signal lights are activated.

Cruise Control

Indicates the cruise control is enabled.

NOTE: The ICU4Me does not have a green cruise control telltale.

High-Beam Headlights Indicates the high-beam headlights are on. Blue

See Fig. 4.4 for an explanation of the aftertreatment system (ATS) warning indicators, and actions required to avoid further engine protection steps.

Table 4.1, Common Warning and Indicator Lamps

Engine Protection System

WARNING

When the red STOP engine lamp illuminates, most engines are programmed to shut down automatically within 30 seconds. The driver must immediately move the vehicle to a safe location at the side of the road to prevent causing a hazardous situation that could cause bodily injury, property damage, or severe damage to the engine.

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 der-

ate 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.

Instruments

4.7

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.

IMPORTANT: Do not attempt to restart the engine while the vehicle is moving. Bring the vehicle to a safe stop, then restart the engine.

To restart the engine, turn the ignition to OFF, leave it there a few seconds, then turn the ignition to START. The engine will run for a short period and shut down again if the condition does not improve.

Standard Instruments

Standard instruments are present on every vehicle. They are listed here in alphabetical order, to make the information easier to ﬁnd.

Some gauges have an LED warning light that indicates when values have exceeded their preset minimum or maximum values.

Gauges with a warning light include:

•

engine coolant temperature;

•

engine oil pressure;

•

fuel and DEF level;

•

transmission ﬂuid temperature;

•

voltmeter.

Coolant Temperature Gauge

NOTICE

A sudden increase in coolant temperature may indicate engine or cooling system failure. Bring the vehicle to a safe stop and investigate the cause to prevent further damage. Do not operate the engine until the cause has been determined and corrected.

During normal engine operation, the coolant temperature gauge should read between 175 and 195°F (79 and 91°C). If the temperature remains below 160°F (71°C) or exceeds the maximum temperature shown in

Table 4.2, inspect the cooling system to

determine the cause.

Maximum Coolant Temperature

Engine Make Temperature: °F (°C)

Cummins 225 (107)

f080156

EXHAUST AFTERTREATMENT SYSTEM INFORMATION

Switch.

Level 1 Level 3Level 2 Level 4

Filter Regeneration Recommended.

Filter is reaching

Bring vehicle to highway speeds to

Filter Regeneration

Filter is now reaching maximum capacity

To avoid engine derate, bring vehicle

Parked Regeneration Required − Engine Derate

Filter has reached maximum capacity

Vehicle must be parked, and a Parked

Service Regeneration Required. Engine Derate To Idle Only.

Filter has exceeded maximum capacity.

Vehicle must be parked, and a Service Regeneration must be

(Solid)

(Flashing) (Flashing)

CHECK

INDICATOR LAMP(S)

Indicator Lamp Message(s)

Diesel Particulate Filter Condition

Required Action

capacity

STOP

allow for an Automatic Regeneration or perform a Parked

to highway speeds to allow for an Automatic Regeneration, or perform a Parked Regeneration as soon as possible.

Regeneration must be performed. Engine will begin derate.

performed. Check engine operator’s manual for details. Engine will shut down.

For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.

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ARNING

HEST (High Exhaust System Temperature)

Exhaust components and exhaust gas are at high temperature. When stationary, keep away from people and flammable materials or vapors.

A regeneration is in progress.

Flashing

Solid

Regeneration.

Necessary

Fig. 4.4, ATS Warning Lamps

Instruments

4.8

Maximum Coolant Temperature

Engine Make Temperature: °F (°C)

Detroit Diesel 215 (101)

Table 4.2, Maximum Coolant Temperature

Engine Oil Pressure Gauge

NOTICE

A sudden decrease or absence of oil pressure may indicate mechanical failure. Bring the vehicle to a safe stop and investigate the cause to prevent further damage. Do not operate the engine until the cause has been determined and corrected.

The engine oil pressure gauge displays the current engine oil pressure. If engine oil pressure falls below the minimum levels shown in

Table 4.3, the CHECK

engine lamp will illuminate. If the condition does not improve, the STOP engine lamp will illuminate and an audible warning will sound. The engine will then derate or shut down, depending on the type of engine protection system installed.

Minimum Engine Oil Pressure

Engine Model

At Idle Speed:

psi (kPa)

At Rated RPM:

psi (kPa)

Cummins 15 (103) 35 (241) min. Detroit Diesel 14 (97) min. 55 (350) min.

Pressures apply with the engine at operating temperature. Oil pressure may be higher on a cold engine. Observe and record pressures when the engine is new to create a guide for checking engine condition.

Table 4.3, Minimum Engine Oil Pressure

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.

Primary and Secondary Air Pressure Gauges

WARNING

If air pressure falls below minimum pressure, the braking ability of the vehicle will be limited. Slow the vehicle down and bring it to a gradual stop. Do not attempt to move the vehicle until air pressure has risen above the minimum level. Moving a vehicle without adequate braking power could cause an accident resulting in property damage, personal injury, or death.

Air pressure gauges register the pressure in the primary and secondary air systems. Normal pressure with the engine running is 100 to 120 psi (689 to 827 kPa) in both systems.

A low air pressure warning lamp and audible warning, connected to both the primary and secondary systems, activate when air pressure in either system drops below a minimum pressure of 64 to 76 psi (441 to 524 kPa).

When the engine is started, the warning light and buzzer remain on until air pressure in both systems exceeds minimum pressure.

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f611045

1. Diesel Fuel Level Indicator

2. DEF Level Indicator

3. Low DEF Warning Lamp (amber below 10% DEF)

4. Low Fuel Warning Lamp (amber at 1/8 tank of fuel)

Fig. 4.5, Fuel/DEF Gauge

Instruments

4.9

Speedometer

Two speedometer face options are available. The U.S. version of the speedometer registers speed in both miles per hour (mph) and kilometers per hour (km/h), with mph in larger numbers.

The metric version of the speedometer face reverses this arrangement, with km/h in larger numbers.

Tachometer

The tachometer indicates engine speed in revolutions per minute (rpm) and serves as a guide for shifting the transmission and keeping the engine in the appropriate rpm range. For low idle and rated rpm, see the engine identiﬁcation plate.

Voltmeter

The voltmeter indicates the vehicle charging system voltage when the engine is running and the battery voltage when the engine is stopped. By monitoring the voltmeter, the driver can stay aware of potential battery charging problems and have them ﬁxed before the batteries discharge enough to create starting difficulties.

The voltmeter will normally show approximately 13.7 to 14.1 volts when the engine is running. The voltage of a fully charged battery is 12.7 to 12.8 volts when the engine is stopped. A completely discharged battery will produce only about 12.0 volts. The voltmeter will indicate lower voltage as the vehicle is being started or when electrical devices in the vehicle are being used.

If the voltmeter shows an undercharged or overcharged condition for an extended period, have the charging system and batteries checked at a repair facility.

On a vehicle equipped with a battery isolator system, the voltmeter measures the average voltage of all the batteries when the engine is running. When the engine is stopped, the voltmeter shows only the gel cell battery voltage and does not indicate the voltage of the engine-starting batteries.

NOTICE

Gel cell batteries can be damaged if the battery voltage is allowed to drop below 12.0 volts or if the charging voltage is more than 14.1 volts. Start the engine to recharge the gel cell before

the battery becomes fully discharged. If an external charger is needed, disconnect the gel cell battery and use only an external battery charger that has been approved for gel cell batteries.

Optional Instruments

Optional instruments are not found on every vehicle. They are listed here in alphabetical order, to make the information easier to ﬁnd.

Air Restriction Gauge

The air intake restriction gauge measures the vacuum on the engine side of the air cleaner. On standard installations, it is mounted on the air intake duct in the engine compartment. As an option for easier viewing, an air intake restriction gauge may be located in the ICU.

NOTE: Rain or snow can wet the air ﬁlter, causing a temporarily higher than normal reading.

Air intake restriction vacuum is measured in inches of water (inH2O). For vehicles equipped with a graduated indicator (see

Fig. 4.6) or a restriction

gauge on the dash, check the gauge with the engine off. If the air restriction value equals or exceeds the value shown in

Table 4.4, the air cleaner element

needs to be replaced.

Maximum Air Intake Restriction Values

Engine Make Initial inH

Service inH

Cummins 10 25

08/07/2007 f090452

Fig. 4.6, Manual-Reset Air Restriction Indicator with

Graduations

Instruments

4.10

Maximum Air Intake Restriction Values

Engine Make Initial inH

Service inH

Detroit Diesel 10 22

Table 4.4, Maximum Air Intake Restriction Value

Brake Application Air Pressure Gauge

The application air pressure gauge registers the air pressure being used to apply the brakes, and should be used for reference only. The gauge will not register until the foot pedal is depressed or the hand brake lever is applied.

Drive Axle Oil Temperature Gauges

NOTICE

A sudden increase in oil temperature that is not caused by a load increase may indicate mechanical failure. Bring the vehicle to a safe stop and investigate the cause to prevent further damage. Do not operate the vehicle until the cause has been determined and corrected.

During normal operation, drive axle oil temperature gauges should read as follows:

•

160 to 220°F (71 to 104°C) for Detroit™and Meritor™drive axles

•

180 to 200°F (82 to 93°C) for Dana Spicer® drive axles

Under heavy loads, such as when climbing steep grades, temperatures that exceed the normal oil temperature range for a short period are not unusual. If the temperature returns to normal when the load decreases, there is no problem.

Engine Oil Temperature Gauge

NOTICE

A sudden increase in oil temperature that is not caused by a load increase may indicate mechanical failure. Bring the vehicle to a safe stop and investigate the cause to prevent further damage. Do not operate the engine until the cause has been determined and corrected.

During normal operation, the engine oil temperature gauge should read from 200 to 260°F (93 to 126°C).

Transmission Fluid Temperature Gauge

The transmission ﬂuid temperature gauge measures the transmission lubricant operating temperature. Transmission temperatures vary by application, but the transmission ﬂuid temperature gauge reading should not exceed 250°F (121°C).

NOTICE

A sudden increase in transmission ﬂuid temperature that is not caused by a load increase may indicate mechanical failure. Bring the vehicle to a safe stop and investigate the cause to prevent further damage. Do not operate the vehicle until the cause has been determined and corrected.

Turbocharger Boost Pressure Gauge

The turbocharger boost pressure gauge measures the pressure in the intake manifold being created by the turbocharger, in excess of atmospheric pressure.

Driver Message Center

ICU4

Functions

The mode/reset button, located on the right side of the lightbar, controls the driver message center. Press the mode/reset button to advance one screen; hold the button down to select a menu choice or reset the display. When the display is reset, an audible chirp sounds.

Direct Access Screens

When the parking brake is not set, pressing the mode/reset button will scroll through the direct access screens.

Instruments

4.11

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