Question about Land Rover Range Rover

1 Answer

Have a 2004 range rover with p122b code output speed sensor. Replaced sensor and checked wiring in transmission and going to control unit. Did a transmission service, flush and filter. You can drive all day and nothing will happen or you drive for 10 minutes and it goes in to transmission fail safe mode.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 44 Answers

This might sound odd, but it could be the gearbox output shaft bearing. If the transmission sounds noisier than it did, this could be the issue. Only way to check is to take off the transfer box. Not a major job, but takes a while. Some good fault code readers will read transmission codes, and allow you to see in real time what the sensor is doing - if the sensor suddenly loses signal, then it is very likely to be the a bearing (output shaft bearing most likely) that is at fault, causing the sensor ring to move too far from the sensor. Best guess, but could be other things, so don't go taking that transfer box off without getting a road test with a good fault code reader on it - or find someone with a portable oscilloscope and put that across the sensor - you should be able to see nice square wave pulses - if they get bigger and smaller (variable amplitude), that's your problem. If not, the fault lies elsewhere.

Posted on Aug 03, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

2000. What are the probable causes for DTC P0720?


the output speed sensor is not at fault; check the fluid level in the transmission. If that won't help, the transmission is bad.

Jul 27, 2015 | Honda Odyssey Cars & Trucks

2 Answers

I have a 2004 dakota codes p0052 p0732 p0720 p0731 p0700. Bought non running and had a 3.7 installed got back and it jerks when taking off and won't shift out of 1st gear. Limp mode? Any ideas?


P0700 Transmission control system malfunction
P0720 output speed sensor circuit malfunction
P0731 gear ratio error in first gear
P0732 gear ratio error in second gear

May 24, 2015 | 2004 Dodge Dakota

1 Answer

I am looking for a ECU pinout or a Diagram. I am throwing a "turbine overspeed" code (P0716) on a non turbo car. Also P0721 and P0705 On second ECU with the same issue.


Hello. You are confusing the turbine over speed control sensor module of the car's transmission, with a turbo charger- a forced air induction device, of a car's engine. One has nothing to do with the other.

The turbine over-speed control module is basically a sensor that reads the speed of the transmission's input shaft (torque converter) in relation to the speed of the output shaft- transmission speed ratio/gear.

Simply put- when the P0716 error code displays, it means that the ECM has detected the value(s) of the input sensor as being out of range, like being too high or too low; or that there is some bad wiring issue in the circuit.

When this happens, the subsequent P0721 output speed sensor and P0705 transmission range sensor circuit malfunction error codes appear- and does not necessarily mean that the entire transmission components (electronic modules, sensors, or mechanical parts) have malfunctioned leading to a major transmission overhaul.

It is most likely that the Input Turbine Speed sensor needs to be replaced. Take the car to a well qualified SAE certified transmission specialist who has precise diagnostic and transmission control readers and are able to reset the computerized transmission modules once the repair is made.

Feb 20, 2015 | 2006 Kia Sorento

1 Answer

Speed signal n-ab(output)


the fault code is 32 speed signal n-ab output

Sep 25, 2013 | 2004 Land Rover Range Rover

1 Answer

I need help asap 2003 Expedition code p0171 and code p0712 i have and idea of the 1st code but whats the secound code i really need help i dont want to take it to a shop where there going to charge me alot...


P0700 Transmission Control System

P0701 Transmission Control System Range/Performance

P0702 Transmission Control System -Electrical

P0703 Torque Converter/Brake Switch B Circuit

P0704 Clutch Pedal Position Switch -Circuit Malfunction

P0705 Transmission Range Sensor/Switch Circuit Malfunction (PRNDL Input)

P0706 Transmission Range Sensor/Switch Circuit Range/Performance

P0707 Transmission Range Sensor/Switch Circuit Low Input

P0708 Transmission Range Sensor/Switch Circuit High Input

P0709 Transmission Range Sensor/Switch Circuit intermittent

P0710 Transmission Fluid Temperature Sensor Circuit

P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance

P0712 Transmission Fluid Temperature Sensor Circuit Low Input

P0713 Transmission Fluid Temperature Sensor Circuit High Input

P0714 Transmission Fluid Temperature Sensor Circuit Intermittent

P0715 Input/Turbine Speed Sensor Circuit

P0716 input/Turbine Speed Sensor Circuit Range/Performance

P0717 Input/Turbine Speed Sensor Circuit No Signal

P0718 Input/Turbine Speed Sensor Circuit Intermittent

P0719 Torque Converter/Brake Switch B Circuit Low

P0720 Output Shaft Speed Sensor Circuit

P0721 Output Shaft Speed Sensor Circuit Range/Performance

P0722 Output Shaft Speed Sensor Circuit No Signal

P0723 Output Shaft Speed Sensor Circuit Intermittent

P0724 Torque Converter/Brake Switch B Circuit High

P0725 Engine RPM Input Circuit

P0726 Engine RPM Input Circuit Range/Performance

P0727 Engine RPM Input Circuit No Signal

P0728 Engine RPM Input Circuit Intermittent

P0729 Gear 6 Incorrect Ratio

P0730 Incorrect Gear Ratio

P0731 Gear 1 Incorrect Ratio

P0732 Gear 2 Incorrect Ratio

P0733 Gear 3 Incorrect Ratio

P0734 Gear 4 Incorrect Ratio

P0735 Gear 5 Incorrect Ratio

P0736 Reverse Incorrect Ratio

P0737 TCM Engine Speed Output Circuit

P0738 TCM Engine Speed Output Circuit Low

P0739 TCM Engine Speed Output Circuit High

P0740 Torque Converter Clutch Solenoid Circuit

P0741 Torque Converter Clutch Solenoid Circuit Performance or Stuck Off

P0742 Torque Converter Clutch Solenoid Circuit Stuck On
P0743 Torque Converter Clutch Solenoid Circuit Electrical
Now i dont know a lot about automatics especially modern ones with all this fancy electronics thats used nowdays but i think its a fault with the temperature sensor for the gearbox.But where its located and what it looks like i have no idea it could even be mounted inside the gearbox .Sorry not a very good answer from a mechanic but?? very few of our europeon cars come with auto transmission .Evan when i do know whats wrong i cannot buy the parts for the gearbox as only re-con boxes supplied by the dealer so best advice is to try a specialist in auto box repairs only .PS some of my best students when i used to teach mechanics many moons ago were the girls so no excuses like iam only a girl please

Apr 22, 2013 | Cars & Trucks

1 Answer

2004 Range Rover HSE won't start. Last week i had problem starting the rover. I checked the starter and the relay and was hoping that it could be one or the other. But this week i noticed that the...


Sounds more like a low voltage current flow in the ground circuit(harness).
Or the voltage output from ignition switch.
If No check engine light ever came on, or is not on, then the PCM/ECM is telling us there is No fault anywhere,
TCM-automatic transmission computer- uses VSS- vehicle speed sensor, to know when to shift gears.
A low input power to any of these control modules would result in lack of performance
Rough shifting could be caused by low fluid level

1. Check all fuses
2. ensure the battery cables are tight.
3. Check negative from battery has ground to frame rail
4. Check Transmission Fluid Level.

If you notice other symtoms, or situation continues, please post back

Mar 02, 2017 | 2004 Land Rover Range Rover

3 Answers

Nissan Maxima speedometer reads 20 mph but actual speed is 40-50 mph, is my transmission going bad?


NO, IT'S NOT THE TRANSMISSION! SOUNDS LIKE A SPEEDOMETER PROBLEM! THAT WOULD BE ONE OF THREE THINGS! EITHER THE SPEEDOMETER, THE CABLE, OR THE SPEED SENSOR! THE SPEED SENSOR WILL USUALLY GIVE YOU A P0500 CODE ON AN OBD-II CODE READER! THE SPEED SENSOR IS ELECTRONIC SPEED CONTROL LOCATED ON THE TRANSMISSION! SOME HAVE A SPEEDOMETER CABLE HOOKED TO THEM, AND SOME JUST HAVE A 2 WIRE PLUG THAT HOOKS TO IT!

Mar 04, 2011 | 2000 Nissan Maxima

2 Answers

Po720 code and po733 code plus leaking oil


P0720-OUTPUT SPEED SENSOR ERROR

WHEN MONITORED
The transmission gear ratio is monitored continuously while the transmission is in gear.

SET CONDITION
If there is an excessive change in output RPM in any gear. This DTC can take up to five minutes of problem identification before illuminating the M.I.L.

POSSIBLE CAUSES[*]Output speed sensor signal circuit open[*]Speed sensor ground circuit open[*]Output speed sensor signal circuit short to ground[*]Speed sensor ground circuit short to ground[*]Output speed sensor signal circuit short to voltage[*]Speed sensor ground circuit short to voltage[*]Output speed sensor[*Powertrain Control Module (PCM)[*]Intermittent wiring and connectorsi cen get you a full flow chart on how to check it out if you wish

p0733 Gear 3 Incorrect ratio

Jan 03, 2011 | Chrysler Voyager Cars & Trucks

1 Answer

Transmission Problems on 2001 Elantra


what can i do to fix the output speed sensor

Jun 22, 2010 | 2001 Hyundai Elantra

1 Answer

Transmission will not shift out of low on my chevy 2001 3500 , the code is p0700 and p1781, p1721


P0700 will come up with most all codes or faults to do with a transmission,P1781 is 4X4 switch out of range,I have never heard of a P1721 but a P0721 is trans output sensor range or performance.If the computer isn't getting a output speed it doesn't know that it should shift.I would check all your wiring down around the trans area looking for broken or grounded wires if ok have the speed sensor checked for being opened.

Feb 10, 2010 | 2001 Chevrolet Silverado

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

911 people viewed this question

Ask a Question

Usually answered in minutes!

Top Land Rover Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

yadayada
yadayada

Level 3 Expert

76848 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8582 Answers

Are you a Land Rover Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...