P106B on 2012-2019 Fiat 500 (Pop, Sport, Lounge, Turbo) — Manufacturer-Specific Powertrain Sensor/Solenoid Fault
1 vehicles · 1 makes · $800-$1,400 repair
Most Reported On
P106B is an OBD-II diagnostic trouble code meaning “Manufacturer-Specific Powertrain Sensor/Solenoid Fault.” P106B is a manufacturer-specific powertrain code whose meaning varies significantly by maker, so it should not be read as a single fixed fault. Reported definitions include a cylinder 4 oil-supply solenoid valve timing fault (Chrysler/Fiat group), a fuel pressure regulator performance issue (some Honda/Toyota references), a throttle valve stuck/hard-to-move condition (some VW references), and pressure-sensor correlation faults on others. Because of this, the specific circuit must be confirmed with make-and-model service data before repair. This code is most commonly reported on 2012-2019 Fiat 500 (Pop, Sport, Lounge, Turbo), with repair costs ranging from $800 to $1,400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P106B does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P106B mean?
P106B stands for "Manufacturer-Specific Powertrain Sensor/Solenoid Fault." P106B is a manufacturer-specific powertrain code whose meaning varies significantly by maker, so it should not be read as a single fixed fault. Reported definitions include a cylinder 4 oil-supply solenoid valve timing fault (Chrysler/Fiat group), a fuel pressure regulator performance issue (some Honda/Toyota references), a throttle valve stuck/hard-to-move condition (some VW references), and pressure-sensor correlation faults on others. Because of this, the specific circuit must be confirmed with make-and-model service data before repair.
What are the most common causes of P106B?
The most common causes of P106B are: Oil supply/control solenoid valve fault (Chrysler/Fiat group), Fuel pressure regulator or fuel system performance issue (some makes), Throttle body/valve sticking or contamination (some VW), Pressure sensor or sensor-correlation fault, Wiring, connector, or ground problems in the affected circuit, Low or dirty engine oil (oil-solenoid variants), Faulty PCM/ECM. The specific cause varies by vehicle.
How much does it cost to fix P106B?
Repair costs for P106B range from $800 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by P106B?
Au7o has documented P106B across 1 vehicle models from 1 manufacturers: Fiat.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.