DESCRIPTION:
DEF Tank Level 0 – Empty (Speed limited).

MONITORED PARAMETER:
DEF tank level.

TYPICAL ENABLING CONDITIONS:
DEF tank level less than 2.5%.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
10 minutes

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
Engine Idle: 5 minutes.

NOTE: This fault indicated that the DEF tank level is empty and the warning lamps have been ignored. A 25% engine date and 5 mph speed limit is in effect. DEF must be added to DEF tank (Minimum 1/4 tank). After refill, idle engine for five minutes.