254 OPERA TION

Instrument Cluster

The aftertreatment icons are located the instrument cluster per the following

Instrument Cluster Icons

Aftertreatment icons are displayed the instrument cluster There are 3 aftertreatment icons:

• Aftertreatment DPF Regeneration Required

• High Exhaust System T emperature (HEST)

• Aftertreatment DEF T ank Low Level Indicator

The Aftertreatment DPF Regeneration exhaust gas temperature during a passive When the HEST icon not park operate the vehicle near any flammable

Required icon flashes when the Diesel Particulate Filter full/overfull and regeneration needed.

W3007444

High Exhaust System T emperature (HEST) Icon

W3007445

Aftertreatment DPF Regeneration Required Icon

The High Exhaust System T emperature icon illuminates when a parked Aftertreatment DPF Regeneration Required also indicates high

W2029416

Aftertreatment DEF T ank Low Level Indicator (DEF)

The Aftertreatment DEF T ank Low Level Indicator icon illuminates when the fluid level low . also Flashes when the level becomes critically low .

Malfunction Indicator Lamp (MIL)

W3031200

MIL Lamp

• MIL indicates government Regulation Board Diagnostics (OBD) faults

• Lamp may r emain active after r epair until system confirms r epair https://www.truck-manuals.net/

Aftertreatment DEF T ank Level - Driver W arning & Inducement

Aftertreatment DEF tanks are sized have less than 2 times the diesel fuel tank mileage hour range

The vehicle instrument cluster has a Aftertreatment DEF T ank Level Gage

Note: V ehicle has stationary before 5 mph RSL becomes

Aftertreatment DEF Quality - Driver W arning & Inducement

Note: V ehicle has stationary before 8 km/h mph RSL) becomes https://www.truck-manuals.net/

Exit conditions for DEF Quality mph r oad speed limit" Inducement:

First Restart: Return 25% torque reduction until proper DEF quality evaluation. poor DEF quality detected during the next monitoring cycle then the 5 mph limit resumed after vehicle stationary for minutes. After the second restart a Service T ool required exit the 8 km/h mph) RSL.

Misfilling Diesel

Aftertreatment DEF T anks

Although diesel fuel and Aftertreatment DEF caps are clearly labeled and filler necks and nozzles are dif ferent accidents can

Contamination fluids - misfilling diesel DEF the wrong tank may result vehicle

Results misfilling DEF Diesel T ank

• Engine may run poorly not all

• Injectors may damaged

• Exhaust system corrosion may occur between turbochar ger and Aftertreatment DPF

• Board Diagnostic (OBD) Diagnostic T rouble Codes (DTC)

• Costly repairs

Results misfilling Diesel Aftertr eatment DEF T ank

• Aftertreatment SCR system may damaged Diesel

• SCR Catalyst may damaged diesel (chemical damage)

• Emissions may non - compliant

• Board Diagnostic (OBD) Diagnostic T rouble Codes (DTC)

• Costly repairs https://www.truck-manuals.net/

Note: DEF tank has a magnetic interlock and fuel station DEF fluid dispensing nozzle with a magnetic valve, have meet prevent from dispensing into anything other than the DEF tanks.

SCR T ampering - Driver W arning & Inducement

Note: Operator can not override the 5 mph road speed limit and that 5mph road speed limit.

Note: V ehicle has stationary before 8 km/h mph RSL) becomes