DESCRIPTION:
This code sets when the Aftertreatment Control Module (ACM) detects a short to voltage or open on the Diesel Exhaust Fluid (DEF) Pressure Sensor Circuit.

MONITORED PARAMETER:
Diesel exhaust fluid (DEF) pressure sensor.

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
Engine Idle: One minute.

PROBABLE CAUSES:
1. DEF pressure sensor.
2. DEF pressure sensor connector/harness.