P0705: Transmission Range Sensor A Circuit (PRNDL Input)
What Does P0705 Mean?
P0705 is a diagnostic trouble code indicating: Transmission Range Sensor A Circuit (PRNDL Input). This code relates to the transmission system. It has been reported in NHTSA complaints across 5 different vehicle models.
The automatic transmission is controlled by the TCM using input from speed sensors, temperature sensors, and pressure sensors. When the TCM detects a fault, it may activate limp mode (2nd or 3rd gear only). Shift solenoids are electromagnetic valves inside the valve body controlling hydraulic fluid flow. Modern transmissions use 4-8 solenoids in combination for each gear. Solenoid failures are often caused by contaminated fluid — worn clutch material and degraded fluid create varnish that sticks solenoids. Always check transmission fluid first: level, color (red/pink good, brown/black bad), and smell (burnt = internal damage). Transmission DTCs escalate fast — a $200 solenoid fix can become a $3000-$5000 rebuild if ignored.
Symptoms of P0705
- ⚠️ Check engine/transmission warning light on
- ⚠️ Harsh, delayed, or erratic shifting
- ⚠️ Transmission stuck in one gear (limp mode)
- ⚠️ No upshift or no downshift
- ⚠️ Transmission slipping
- ⚠️ RPM flares between shifts
Common Causes
- 🔍 Faulty shift solenoid
- 🔍 Contaminated transmission fluid
- 🔍 Wiring issue between TCM and solenoid
- 🔍 Valve body wear
- 🔍 TCM internal failure
P0705 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"AUTOMATIC TRANSMISSION SHIFTER UNABLE TO SHIFT -- BEGINNING IN 2017 (3 YEARS INTO THE NEW CAR), THE TRANSMISSION BEGAN TO EXHIBIT PERIODS WHERE IT WAS VERY DIFFICULT TO SHIFT. MOVING THE TRANSMISSION SHIFTER FROM STATIONARY TO ANY OF THE MOVING POSITIONS (R, D, 3, 2, 1) REQUIRED SIGNIFICANT STRENGT"
— Toyota Tacoma owner, 09/01/2017
"I BOUGHT A NEW NISSAN VERSA 2012 3 YEARS BACK. IT HAS ONLY 50,000 MILES. THE VEHICLE JERKS WHEN I SHIFT FROM 'R" TO "D:. THE SES LIGHT COMES ON FREQUENTLY WITH CODE P0705. THE DEALERSHIP UPDATED SOFTWARE AND ADJUSTED RANGE SWITCH. THE PROBLEM PERSISTS. NOW THE DEALERSHIP SAYS THERE IS A SHORT-CIRCUI"
— Nissan Versa owner, 07/01/2015
"WAS COMING TO A STOP AT A RED LIGHT WHEN MY CAR SUDDENLY STALLED OUT. RE STARTED IT THEN IT WAS SLUGGISH AND MY CHECK ENGINE LIGHT CAME ON, WHEN I CAME TO A STOP AGAIN I FELT A QUICK THUNK LIKE THE TRANSMISSION WAS SLIPPING. FINALLY GOT IT HOME WHEN PUT IT ON CODE READER IT CAME UP WITH CODE P0705 "
— Nissan Versa owner, 11/30/2019
Source: NHTSA Complaints Database
Most Reported Vehicles for P0705
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | NISSAN VERSA | |
| 2 | TOYOTA TACOMA | |
| 3 | HYUNDAI SONATA | |
| 4 | KIA OPTIMA | |
| 5 | KIA SORENTO |
P0705 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Diagnostic Tips
- Check fluid level and condition FIRST
- Multiple codes suggest valve body or internal damage
- Monitor solenoid duty cycle with scan tool
- Solenoids often accessible by removing pan
Common Mistakes to Avoid
- ❌ Replacing solenoid without flushing contaminated fluid
- ❌ Using aftermarket fluid instead of manufacturer-specified
- ❌ Driving in limp mode for extended periods
Frequently Asked Questions
What is a shift solenoid?
Can I drive in limp mode?
How much for solenoid replacement?
Can fluid change fix it?
What To Do Next
Possible Fixes
- 🔧 Replace shift solenoid or pack
- 🔧 Transmission fluid flush with manufacturer fluid
- 🔧 Repair wiring to transmission
- 🔧 Replace valve body
-
1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
-
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
-
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.