this is the only info for the code. was the regen successfull?? did you monitor the last 5 minutes?? the inlet and outlet temp sensors should be within 50 degrees of each other. also, what was the conversion percentage???
SPN 5246/FMI 15
DescriptionRegulatory Fault Ignored - Derate On.
Monitored ParameterSCR and DPF sensors
Typical Enabling ConditionsAlways enabled
Execution FrequencyAlways enabled
Typical Duration2 seconds
Engine Reaction25 percent derate
Parked SCR efficiency test for extended SCR faults
High idle regeneration for DPF and NOx faults
Check as follows:
- Connect DiagnosticLink® . Go to step 2.
- Check for other emission-related fault codes. Are there any Selective Catalyst Reduction (SCR) or Diesel Particulate Filter (DPF) related fault codes present?
- Yes; diagnose and repair the emission-related fault codes first. Verify repair.
- No; perform the Selective Catalyst Reduction (SCR) efficiency test or high idle regeneration. Use DiagnosticLink to clear the code.
Printed Fri Sep 15 2017 17:44:41 GMT-0400 (Eastern Daylight Time)
Copyright © 2017 by Detroit Diesel Corporation. All rights reserved.