Transmission Range Sensor Circuit Malfunction (PRNDL Input)
The sensor that tells the computer which gear position (P/R/N/D/L) the selector is in has failed, which can prevent the car from starting in park/neutral as a safety measure.
Code names are compiled from open/standardized SAE and ISO references. Explanations, symptoms, causes and fixes are original. Covers generic (P0/C0/B0/U0) codes only — manufacturer-specific codes are planned for a future update.
Frequently asked questions
Can I drive with P0705?
You can usually keep driving with P0705, but don't put it off — the underlying cause can get worse or lead to further damage the longer it goes unaddressed. Get it diagnosed as soon as you reasonably can.
How much does it cost to fix P0705?
The cost varies too much by cause and vehicle to give a single figure here — a diagnosis will narrow it down.
Code names compiled from open SAE/ISO references; explanations and repair guidance are original editorial content Last verified: 09 Jul 2026 · Our methodology