Service bulletin 18-010-15 REV-C

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10148991
Published by NHTSA	2018-11-26
Manufacturer's number	18-010-15 REV-C
Manufacturer's date	2015-08-27
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

Flash:1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P0141 Oxygen Sensor 1/2 Heater Performance (software has been updated to better address this DTC, for EAB engines). ? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. ? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. ? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. ? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent. ? P061A Internal Control Module Torque Performance (2014 Vehicles only). ? Improved reverse lamp activation time (2015 auto trans only). ? Improved cold weather starting, below -4 °F (-20 °C).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Starter, Transmission control module

Trouble codes named

P0141, P061A, P1046, P1048, P104A, P104C

Vehicles listed
FIAT 500	2014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
15V291000	2015-05-18. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1806914	2023-02-21. Service bulletin. Powertrain Control Module (PCM)
18-010-15 REV. D	2022-07-25. Service bulletin. Flash: 1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? Cranks fast, as if no compression. ? P1524 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled (2014 Vehicles only). ? P1128 - Closed Loop Fueling Not Achieved - Bank 1 Upstream (2014 Vehicles only). ? P0141 - Oxygen Sensor 1/2 Heater Performance (2015 Vehicles only). ? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. ? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. ? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. ? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent. ? P061A Internal Control Module Torque Performance (2014 Vehicles only). ? Improved reverse lamp activation time (2015 auto trans only). ? Improved cold weather starting, below -4 °F (-20 °C).
0812215	2022-07-05. Service bulletin. This bulletin involves performing a wiTECH Misc-Function routine, for proper operation of
18-010-15 REV-D	2018-12-17. Service bulletin. Flash: 1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? Cranks fast, as if no compression. ? P1524 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled (2014 Vehicles only). ? P1128 - Closed Loop Fueling Not Achieved - Bank 1 Upstream (2014 Vehicles only). ? P0141 - Oxygen Sensor 1/2 Heater Performance (2015 Vehicles only). ? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. ? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. ? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. ? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent. ? P061A Internal Control Module Torque Performance (2014 Vehicles only). ? Improved reverse lamp activation time (2015 auto trans only). ? Improved cold weather starting, below -4 °F (-20 °C).
18-032-15 REVA	2018-12-10. Service bulletin. Flash: 1.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a crank no start condition in extreme cold temperatures of -4°F (-20°C) partially due to the available fuel blend conditions, They may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that Diagnostic Trouble Code P0141 - O2 SENSOR 1/2 HEATER PERFORMANCE has been set in the PCM.
18-032-15	2018-12-10. Service bulletin. Flash: 1.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a crank no start condition in extreme cold temperatures of -4°F (-20°C) partially due to the available fuel blend conditions, They may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that Diagnostic Trouble Code P0141 - O2 SENSOR 1/2 HEATER PERFORMANCE has been set in the PCM.
18-010-15 REVB	2018-12-03. Service bulletin. Flash:1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find Diagnostic Trouble Codes (DTCs): ? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. ? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. ? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. ? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent. ? P0141 Oxygen Sensor 1/2 Heater Performance. ? P061A Internal Control Module Torque Performance (2014 Vehicles only). ? Improved reverse lamp activation time (2015 auto trans only). ? Improved cold weather starting, below -4 °F (-20 °C).
18-032-15 REV-C	2018-11-26. Service bulletin. Flash: 1.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience one of the following conditions or a a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find a Diagnostic Trouble Code has been set in the PCM. ? P0141 - O2 Sensor 1/2 Heater Performance. ? Crank no start condition in extreme cold temperatures of -4°F (-20°C) partially due to the available fuel blend conditions. Additional Software Improvements Include: ? P1046 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. ? P1048 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. ? P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. ? P104C - Cylinder 4 Oil Supply Solenoid Valve Overcurrent.
21-036-15	2018-11-26. Service bulletin. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience or notice harsh shifts.
18-010-15	2018-11-19. Service bulletin. Flash:1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find Diagnostic Trouble Codes (DTCs): ? P0141 Oxygen Sensor 1/2 Heater Performance. ? P061A Internal Control Module Torque Performance (2014 Vehicles only). ? Improved reverse lamp activation time (2015 auto trans only).