P1046 Fault Code – Vehicle fault code with verified manufacturer evidence

Car Codes diagnostic trouble code

P1046Diagnostic priority

…(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 Contro…

Code interpretation

What P1046 means

This code indicates Vehicle fault code with verified manufacturer evidence Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.

Driver experience

Symptoms you may notice

A stored diagnostic trouble code or a related system warning.

Test, do not guess

Possible causes

The precise cause depends on the reporting module, vehicle specification, circuit condition and software level.

Evidence-led checks

Recommended diagnostic route

Save the complete scan and confirm the code against model-specific technical information before testing.

Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
Prove the basicsTest battery condition, system voltage, power and grounds.
Identify the reporterConfirm the module that logged the code and check circuit integrity.
Compare live dataReview commanded and actual values under the conditions that set the code.
Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
Verify the repairClear the code only after recording evidence, then confirm it does not return.

Vehicle fitment

Vehicle applicability

Fiat 500 Hybrid

Before clearing

Can the code be cleared?

Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.

A DTC is evidence, not a parts order.

Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.

Verified public evidence

Manufacturer and model coverage

13 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.

P1046Fiat 500 Hybrid
500 · 2014 · Powertrain

…(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). ?…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…(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). ?…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…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…

Source

P1046Fiat 500 Hybrid
500 · 2014 · Powertrain

…t 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…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

Source

P1046Fiat 500 Hybrid
500L · 2015 · Powertrain

…ETC Self-Learning Failure. P1523-00 - VVA Low Oil Pressure. P1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0141 - O2 Sensor 1/2 Heater Performance. P1046 - Cylinder…

Source

P1046Fiat 500 Hybrid
500 · 2014 · Powertrain

…(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). ?…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…(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). ?…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…rmance. ? Crank no start condition in extreme cold temperatures of -4F (-20C) partially due to the available fuel blend conditions. Additional Software Improvements Include: ? P1046 - Cylinder 1…

Source

P1046Fiat 500 Hybrid
500 · 2014 · Powertrain

…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 -…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…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 -…

Source

P1046Fiat 500 Hybrid
500 · 2014 · Powertrain

…(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). ?…

Source

P1046Fiat 500 Hybrid
500 · 2015 · Powertrain

…(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). ?…

Source