DESCRIPTION:
Selective catalyst reduction (SCR) inlet NOx sensor – Error.

MONITORED PARAMETER:
SCR inlet NOx.

TYPICAL ENABLING CONDITIONS:
1. 1000-1800 rpm.
2. 35-100% load.
3. Steady cruise.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
Eight minutes

DASH LAMPS:
MIL

VERIFICATION:
1. 1000-1800 rpm.
2. 35-100% load.
3. Steady cruise.
4. Eight minutes.

NOTE: If codes 5357-16 or 5357-18 present, fix those first.

PROBABLE CAUSES:
1. Perform a stationary regen.
2. SCR outlet NOx sensor.