Mack MP8 - Malfunction Indicator Lamp (MIL); Aftertreatment Diesel Exhaust Fluid (DEF) Tank Level

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Malfunction Indicator Lamp (MIL)

W3031200

MIL Lamp

• MIL indicates government regulation on board diagnostics (OBD) faults

• Lamp may remain active after repair until system confirms repair

Aftertreatment Diesel Exhaust Fluid (DEF) Tank Level - Driver Warning &

Inducement

Aftertreatment DEF tanks are sized to have no less than 2 times the diesel fuel tank mileage or hour range.

The vehicle instrument cluster has a Aftertreatment DEF Tank Level Gage.

Triggers Aftertreatment DEF Tank

Low Level Indicator

Amber Warning Lamp Inducement

>12% Aftertreatment DEF

Tank Level Gauge

None None None

<=12% Aftertreatment DEF

Tank Level Gauge

W2029-

416

None None

0% Aftertreatment DEF Tank

Level Gauge (~4% DEF

Remaining)

W2029415

None 25% torque reduction

0% Aftertreatment DEF Tank

Gauge Insufficient DEF

Pump Pressure Diesel Fuel

Refueling >15%

W2029415

None 8 km/h (5 mph) Road Speed

Limit (RSL)

Note: Vehicle has to be stationary before 5 mph road speed limit (RLS) becomes active.

Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR

USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 33 (43)

Mack MP8 - Malfunction Indicator Lamp (MIL); Aftertreatment Diesel Exhaust Fluid (DEF) Tank Level - Driver Warning & Inducement