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Service bulletins for the 2015 Fiat 500

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.

187 on file from NHTSA, as of 2026-10-19.

About P1048 on the 2015 Fiat 500: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P1048 are shown. Show all

Bulletins, newest first
18-010-15 REV. D2022-08-08. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. 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).
18-010-15 REV. D2022-07-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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).
18-010-15 REV-D2018-12-17. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. 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 REVB2018-12-03. Service bulletin. POWER TRAIN. 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. Additional DTC Diagnostic Improvements: ? 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.
18-010-15 REVB2018-12-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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-C2018-11-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. 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.
18-010-15 REV-C2018-11-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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).
18-003-16 REV. A2017-11-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; POWER TRAIN. Flash: 1.4L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. 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): · P0141-00 - Oxygen Sensor 1/2 Heater Performance. · Improved reverse lamp activation time. · Cranks fast, as if no compression. · P1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled (2014 Vehicles only). · P1128-00 - Closed Loop Fueling Not Achieved - Bank 1 Upstream (2014 Vehicles only). · P1046-00 - Cylinder 1 Oil Supply Solenoid Valve Overcurrent. · P1048-00 - Cylinder 2 Oil Supply Solenoid Valve Overcurrent. · P104A-00 - Cylinder 3 Oil Supply Solenoid Valve Overcurrent. · P104C-00 - Cylinder 4 Oil Supply Solenoid Valve Overcurrent. · P061A-00 Internal Control Module Torque Performance (2014 Vehicles only). · Improved cold weather starting, below -20 °C (-4 °F). The following powertrain system improvement/enhancement has been released to improve the accuracy of Mode 6 data parameters in generic scan tools.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.