P0705: Transmission Range Sensor "A" Circuit (PRNDL Input)
P0705 means Transmission Range Sensor "A" Circuit (PRNDL Input). The transmission range sensor tells the computers which gear the selector is in (P, R, N, D, L). The control module has detected a fault in the circuit itself, such as an open circuit, a short, or a signal outside the electrical limits it expects.
Can I keep driving? Drivable with care. Diagnose soon: performance, economy or other components can be affected.
Common symptoms
- Check engine light on
- Harsh, delayed or erratic shifts
- Limp mode
- Possibly incorrect gear display or speedometer issues
Possible causes
- Failed sensor
- Wiring or connector fault (check the transmission connector for fluid)
- Low or contaminated transmission fluid
- Misadjusted range sensor or shift linkage (range sensor codes)
How to diagnose P0705
- Check fluid level and condition.
- Inspect the transmission connector and wiring.
- Check the sensor signal on a scan tool.
- For range sensor codes, check the gear display matches the selector in each position.
What the code means, digit by digit
Generic codes have the same definition on every OBD-II vehicle (petrol cars from model year 1996 in the US, 2001 in the EU; diesels later). Manufacturers can add their own enhanced codes; those are not listed here.
Related codes
- P0710 Transmission Fluid Temperature Sensor "A" Circuit
- P0711 Transmission Fluid Temperature Sensor "A" Circuit Range/Performance
- P0712 Transmission Fluid Temperature Sensor "A" Circuit Low
- P0713 Transmission Fluid Temperature Sensor "A" Circuit High
- P0715 Input/Turbine Speed Sensor "A" Circuit
- P0717 Input/Turbine Speed Sensor "A" Circuit No Signal
- P0720 Output Speed Sensor Circuit
- P0725 Engine Speed Input Circuit
General guidance only. Fault codes describe what the engine computer saw, not which part failed: confirm with testing before replacing parts, and follow the vehicle's service information.