P17B4: Transmission Range Sensor Correlation
1 vehicles · 1 makes · $800-$2,000 repair
P17B4 is an OBD-II diagnostic trouble code meaning “Transmission Range Sensor Correlation.” The transmission range sensor reading does not match the expected gear selection. May prevent shifting. This code appears across 1 vehicle models from 1 manufacturers, with repair costs ranging from $800 to $2,000.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P17B4, 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
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P17B4 mean?
P17B4 stands for "Transmission Range Sensor Correlation." The transmission range sensor reading does not match the expected gear selection. May prevent shifting.
What are the most common causes of P17B4?
The most common causes of P17B4 are: Faulty range sensor, Misadjusted shift linkage, Corroded connector, Wiring fault, Internal transmission switch pack issue. The specific cause varies by vehicle.
How much does it cost to fix P17B4?
Repair costs for P17B4 range from $800 to $2,000, depending on the vehicle and root cause.
Which vehicles are affected by P17B4?
Au7o has documented P17B4 across 1 vehicle models from 1 manufacturers: BMW.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.