TransmissionModerate✅ DIY Friendly

P0705

Q: What does OBD2 code P0705 mean?

P0705 means: Transmission Range Sensor Circuit Malfunction. The ECM has detected an implausible or erratic signal from the Transmission Range (TR) sensor, which tells the ECM/TCM which gear (Park, Reverse, Neutral, Drive) the shifter is in.

Transmission Range Sensor Circuit Malfunction

The ECM has detected an implausible or erratic signal from the Transmission Range (TR) sensor, which tells the ECM/TCM which gear (Park, Reverse, Neutral, Drive) the shifter is in.

SeverityModerate

CategoryTransmission

Est. Repair Cost$100–$400

Code TypePowertrain

DIY RepairYes

⚡ Common Causes

›Faulty neutral safety switch
›Wiring fault
›Misadjusted selector lever
›Failed TR sensor

⚠️ Symptoms

›Vehicle does not start in park
›Wrong gear indicated
›Erratic shifting

✅ How to Fix — Step by Step

Step 1:Check TR sensor adjustment
Step 2:Inspect wiring
Step 3:Replace TR sensor
Step 4:Adjust shift linkage

🔧 Diagnostic Tools Required

✔OBD-II Diagnostic Scanner
✔Transmission Pressure Gauge
✔ATF Temperature Reader
✔Digital Multimeter
✔Basic Hand Tools

Using the correct diagnostic tools helps identify the root cause of P0705 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Confirm the vehicle actually starts only in Park/Neutral before replacing the sensor — if it starts in other gears too, the fault is almost certainly the sensor or its adjustment, not the shifter cable.

Frequently Asked Questions

What does OBD2 code P0705 mean?+

P0705 stands for Transmission Range Sensor Circuit Malfunction. The ECM has detected an implausible or erratic signal from the Transmission Range (TR) sensor, which tells the ECM/TCM which gear (Park, Reverse, Neutral, Drive) the shifter is in.

What causes code P0705?+

Faulty neutral safety switch; Wiring fault; Misadjusted selector lever; Failed TR sensor

How do I fix code P0705?+

Check TR sensor adjustment; Inspect wiring; Replace TR sensor; Adjust shift linkage

How much does it cost to fix P0705?+

Estimated repair cost for P0705 is $100–$400.

Is P0705 DIY-friendly?+

Yes — P0705 is generally DIY-friendly with basic tools.