What Repairs can Fix the P0706 Code?
- If necessary, flush and fill transmission fluid.
- Repair or replace any damaged or faulty wiring or connectors.
- Check battery voltage levels.
- Repair or replace any damaged or defective circuits or connectors.
- Repair or replace damaged or defective transmission range sensors.
What does trouble code P0706 mean?
Engine Code P0706: Transmission Range Sensor Circuit Range/Performance It means the transmission range circuit is not communicating data properly to the PCM. Flush and fill transmission fluid. Repair or replace faulty or damaged connectors or wirings.
Where is the transmission range sensor located?
Depending on the car in question, the Transmission Range Sensor may often be referred to as the neutral safety switch or PRNDL (Park-Reverse-Neutral-Drive-Low) input and can be found outside the transmission box or on the valve body.
How do you test a transmission range sensor?
CHECKING THE TRANSMISSION RANGE SENSOR: TROUBLESHOOTING
- Check the sensor.
- Check the encoder wheel.
- Read out fault memory.
- Measure the resistance of the inductive sensor using an ohmmeter.
- Check the supply voltage to the Hall generator using a voltmeter.
How do I fix code P0706? – Related Questions
What happens when a transmission range sensor goes out?
The Transmission Range Sensor tells the PCM the position of the transmission shifter. The PCM uses this information to control which gears of the transmission to enable or disable. When the TR sensor fails it can cause wrong gear starts, no upshifts, or what feels like a falling-out-of-gear condition.
What causes a transmission range sensor to fail?
Issues with the transmission range sensor circuit, such as damaged wires or poor connections. Defective valve body. Defective shift linkage. Faulty TCM or PCM.
How do you test a transmission range sensor with a multimeter?
Disconnect the sensor from the housing on the transmission, as indicated in the repair manual for your car. Disconnect the sensor’s wire coupling. Using the multimeter’s voltmeter connect the probes to the ground and reference wires in the connector. If no voltage is received, the sensor is faulty.
How many ohms should a transmission speed sensor read?
The typical reading for a passive wheel speed sensor is between 1,000 and 2,500 ohms. This is a normal range for all passive sensors. The specification for active sensors is between 1,000 and 2,500 ohms.
How do you test a faulty sensor with a multimeter?
Turn on your multimeter and set it to DC.
Locate the DC setting on the dial of the sensor and turn the dial to select it, or select the DC setting if your multimeter doesn’t have a manual dial. The DC setting will give you a voltage reading that you can use to test your sensor.
Is a neutral safety switch the same as a transmission range sensor?
Sometimes called a neutral safety switch, the TRS is an electrical switch that tells your vehicle’s powertrain control module what gear your transmission is in when you turn the ignition key to the “on” position.
What are symptoms of a faulty neutral safety switch?
Here is the list of symptoms that can help you identify a failing neutral safety switch.
- Check Engine Lights.
- The Engine Doesn’t Start in Park but Starts in Neutral Mode.
- The Engine Doesn’t Start in Neutral but Starts in Park Mode.
- The Engine Does Not Start at All.
- The Engine Starts in Any Gear.
Can you drive with a faulty transmission range sensor?
No, but the behaviour you get when it’s bad might feel like a transmission problem. If that sensor isn’t working properly, all the computers will be completely confused about what is going on. The engine won’t be producing the torque it should be, and the transmission will be shifting early.
What happens when a neutral safety switch goes out?
Common signs of a faulty neutral safety switch include the engine not cranking in park or neutral, not cranking at all, or cranking in any gear.
How do I reset my neutral safety switch?
Adjusting the Neutral Switch
- Loosen the switch’s mounting bolts just enough so that you can move the unit sideways.
- Ask an assistant to turn and hold the ignition key in the start position, as if trying to fire up the engine.
- Then, slide the switch towards the Park or Neutral position.
Can you drive without a neutral safety switch?
The neutral safety switch is built into the transmission selector switch, and the power from the ignition switch goes straight through the switch when you are in park and neutral to the starter motor solenoid. There is no good reason to bypass the selector switch since the vehicle may start and run in any gear.
Can you bypass a neutral switch?
Yes you can by connecting the purple wire and the purple with white stripe wire on the clutch switch. This should be done temporarily only for testing.
How do you test a neutral switch?
Put the gear to Park, then try to start. If you notice the engine not cranking, step on the brake, then try starting in Neutral. If the engine starts, then the neutral safety switch has gone bad.
Is there a fuse for the neutral safety switch?
Yes, every vehicle has a fuse for its neutral safety switch.
They also have varying amperage ratings. You must use one compatible with your car’s neutral safety switch’s amperage rating to avoid more circuit and electrical issues.
Can a switch work without a neutral wire?
Absolutely! Even if you have a smart switch no neutral, you can install it. That’s because most modern smart switch brands don’t require a neutral wire. Older homes typically don’t have a visible neutral wire in the wall socket.
What happens if the neutral wire is not connected?
Without the neutral wire, all sorts of instabilities occur in the system like unstable voltages, unexpected currents and even dangers of electric shock.