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
To diagnose P106B, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (1)
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.