P0706Transmission Range Sensor A Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- The transmission range sensor (selector or multifunction switch, PRNDL) reports the selected range; it may be a multi-contact switch with a bit pattern per position, an analog sensor with two opposing voltages adding up to 5 V, or a contactless PWM sensor. Its second channel has its own codes (P2801–P2805). P0706 means the signal is present but implausible. Ford uses it per transmission: for its PWM sensor when the frequency leaves 100–175 Hz (nominal 125 Hz), for the 6F digital sensor when it stays in the transition zone between two positions. Saab's 9-5 (9650), whose sensor sits in the transmission module, flags a sum of the two opposing channels more than 0.29 V away from 5 V, with the lamp in the first trip; adaptations are frozen, the gearbox holds 2nd gear in D and the engine may not restart after switch-off.
- What you may notice
- Check engine and/or transmission warning lamp
- Transmission limp mode, fixed gear, harsh shifts
- Starting problems in P/N or start interlock
- Wrong gear indication, reversing light not working
- Likely causes
- LikelyRange sensor or transmission module with integrated sensor faulty
- PossibleSelector cable or sensor misadjusted (position between two ranges)
- PossibleContact resistance in sensor supply or ground
- RareMoisture or oil in harness or connector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.