DESCRIPTION:
Improper diesel exhaust fluid (DEF) quality.
MONITORED PARAMETER:
DEF quality
TYPICAL ENABLING CONDITIONS:
DEF refill event detected.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Two hours
DASH LAMPS:
1. MIL
2. CEL
3. DEF lamp flash
ENGINE REACTION:
None
VERIFICATION:
Parked regeneration
PROBABLE CAUSES:
1. DEF contaminated, drain & flush system.
2. DEF pressure sensor.
3. DEF pressure sensor connector/harness.
4. DEF supply & air lines leaking/kinked.
5. DEF temperature sensor.
6. DEF temperature sensor connector/harness.
7. Perform stationary regen.
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