K45941512
Service Bulletin Details
Public Details for: K45941512
Mack chassis - diagnostic trouble code ( dtc ) P0128, diagnostic and repair - us14 +obd13 us14+obd15 and us14+obd16, commonly model year 2015 through 2017
Models from 2017
2017 MACK CHU |
2017 MACK CXU |
2017 MACK GU |
2017 MACK LEU |
2017 MACK LR |
2017 MACK MRU |
2017 MACK TD |
Models from 2016
2016 MACK CHU |
2016 MACK CXU |
2016 MACK GU |
2016 MACK LEU |
2016 MACK LR |
2016 MACK MRU |
2016 MACK TD |
Models from 2015
2015 MACK CHU |
2015 MACK CXU |
2015 MACK GU |
2015 MACK LEU |
2015 MACK LR |
2015 MACK MRU |
2015 MACK TD |
Solution K45941512 Thursday, May 3, 2018 10:22:24 PM CEST NA_MACK_Vehicle_Range NA_MACK_Vehicle_Ran ge LR , LEU , MRU , CHU , CXU , GU , TD Engine family Engine family MP7 , MP8 , MP10 Emission Standard Emission Standard US16 , US15 , US13 OBD , US14 GHG ** SOLUTION ** Title (customer effect) Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD13 US14+OBD15 And US14+OBD16, Commonly Model Year 2015 Through 2017 Cause P0128-00 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) may log in OBD13 and newer chassis; Guided Diagnostics (GD) may result in No Fault Found (NFF). Solution Verify the chassis emissions level • Details can be found in the Product Details box on the Product tab in PTT as seen below: Review the Detailed Status Information for the relevant code on the DTC Readout. For US14+OBD13 Chassis With An MP7 Engine - Refer to Tech Tip TT-002-2015. For US14+OBD13 Chassis With An MP8 Engine - EMS Software should be verified to be current. - The DTC readout and customer complaint should be reviewed to ensure there are no other codes in the EMS or symptoms reported that may be related to P0128A. • Any other codes or symptoms should be diagnosed with normal procedures - The code confirmation status for P0128 should show as TRUE when code details are reviewed on the DTC Readout in Premium Tech Tool ( PTT ) as shown above. • If the confirmed status is TRUE, proceed with diagnostic procedures as normal. - Ensure the engine is warming up properly to verify the thermostat is not stuck open. - If the unit is functioning properly and there are no other symptoms, clear the code and release the chassis. • If the confirmed status is FALSE, no further diagnosis should be performed and no parts should be changed. Clear the code and release the chassis. For US14+OBD15 Chassis: - Software improvements have been released to address this code. Refer to the table below: For US14+OBD16 Chassis: - EMS Software should be verified to be current. - The DTC readout and customer complaint should be reviewed to ensure there are no other codes in the EMS or symptoms reported that may be related to P0128A. • Any other codes or symptoms should be diagnosed with normal procedures - The code confirmation status for P0128 should show as TRUE when code details are reviewed on the DTC Readout in Premium Tech Tool ( PTT ) as shown above. • If the confirmed status is TRUE, proceed with diagnostic procedures as normal. - Ensure the engine is warming up properly to verify the thermostat is not stuck open. - If the unit is functioning properly and there are no other symptoms, clear the code and release the chassis. • If the confirmed status is FALSE, no further diagnosis should be performed and no parts should be changed. Clear the code and release the chassis. Internal comments (BO) FSB284-064 Solution visibility Dealer distribution Function(s)/component(s) affected Function affected FSB , cooling , 1 1 0 EMS , Diagnostic tool Function Group Function Group 26 cooling system , 284 control system, fuel supply Customer effect Main customer effect calibration/programming/pairing/missing operation , diagnostics/methodology , fault code/display Fluid implicated coolant Lights/Messages on information display Fault code(s) Driver's information warning pictogram OBD 2013 Diagnostic P0128 Trouble Codes Conditions Vehicle operating mode Frequency of occurrence of problem when driving , when stationary random Administration Author a175606 Last modified by RU4469V Creation date 06-04-2016 16:04 Date of last update 18-04-2018 17:04 Status Published