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PACCAR MX (2004 Emissions) Fault Code: U1137 CAN Communication – Message (A1SCRDSI2) Out of Range, DEF Pipe Heater 4 State from Aftertreatment System
PACCAR MX (2004 Emissions) Fault Code: U1137 CAN Communication – Message (A1SCRDSI2) Out of Range, DEF Pipe Heater 4 State from Aftertreatment System
CORRESPONDING OBD READINESS MONITOR:
None
REPAIR VERIFICATION:
1. Clear all DTCs.
2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.
3. Did the DTC come back?
– No, repair successful
– Yes, repair unsuccessful