BALLSTUD 8D4281 - Caterpillar

Resolution
Changed code to be persistent active when tripped for better troubleshooting.Display Names Data Health Monitor
Issue
ECM #1 and ECM #2 is being displayed and causing confusion during troubleshooting.Resolution
Updated ECM columns to read device ID's.Fixes
Hot Shutdown Factory Password
Issue
During hot shutdown, event drives level three code is causing a factory password to clear. The results from the level three code causes long down time for customers.Resolution
Changed Hot Shutdown under certain circumstance to be a level 1 which requires no factory passwords.High DEF Pressure Fault During Prime
Issue
False tripping code 4334-16 Aftertreatment #1 DEF #1 Pressure (absolute) : High - moderate severity (2) during prime.Resolution
Updated to eliminate false trips.DEF Tank & Coolant Temperature Kick Out
Issue
During aftertreatment function test immediately aborts if conditions are not met.Resolution
Changed initiate requirements to allow preconditions of coolant temperature to meet the DEF conditions. If DEF conditions do not meet the aftertreatment function, the test will abort.Caterpillar Regeneration System (CRS) Nozzle Heater
Issue
CRS nozzle heater shortens the cycle was causing heater nozzle plugging.Resolution
CRS nozzle heater timer resets and timer durations have been updated to correct this issue.Post Regen Main fuel Spritz
Issue
Popping sound is noticed during post regeneration main fuel spritz.Resolution
Spark has been disabled during main fuel spritz action.Maintenance Timer (MTB)
Issue
Forced MTB regenerations with auto regeneration capability disabled on application are unable to reset the regeneration trigger request. This is leading subsequent regeneration request without trigger getting reset. This can lead to operator confusion in the field.Resolution
Logic updated to go from MTB to Non-MTB at the end of the regeneration, which will allow reset.Low Battery Voltage Diagnostic
Issue
False trip battery diagnostic during operator forced shutdown. This creates derate without active fault code.Resolution
Diagnostic was improved to reduce false tripping and derate issue.DPF #1 Intake Pressure Sensor Out of Calibration
Issue
False trip code 3464-13 under cold ambient temperature.Resolution
Changed minimum DPF inlet temperature condition set point for DPF Intake Pressure Sensor Code 3465-13.SCR Inducement Def Control Unit Faults
Issue
DCU faults were considered tampering faults which caused downtime and loss of productivity.Resolution
DCU faults have been categorized into tampering and no-tampering. This new change will trigger final inducement in 20 hours and is applicable for EPA regulations.NOx Sensor J1939 Datalink Faults
Issue
Logged 5856-9 SAE J1939 Data Link #3: Abnormal Update Rate being logged.Resolution
Changed ECM request for NOx sensor reading to match J1939 requests.Fuel Pressure Sensor False Trip
Issue
During sudden engine speed drops or key cycles the after fuel filter pressure sensor experiences momentary vacuum that created a false trip of 460-21 code.Resolution
Debounce time was extended to allow sensor recover.Low Fuel Pressure Events
Issue
Level 1 low fuel pressure events are unavailable for DOC protection.Resolution
Added Level 1 low fuel pressure event.Low EGR Delta Pressure Event
Issue
False during on Low EGR delta P.Resolution
Improved diagnostics for EGR absolute pressure sensor and EGR differential pressure sensor.EGR (ABS) & (DP) Sensor out of Calibration
Issue
EGR Absolute (ABS) and EGR Differential Pressure false tripping in cold ambient conditions.Resolution
Changed minimum conditions at cold ambient and zero engine speed to reduce false tripping.Level 1 Coolant Derate
Issue
Level 1 Coolant Temperature event comes up when EGR protection derates occur.Resolution
Separated EGR derates from PMS level 1