Question about 2000 BMW 5 Series

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I have done a diagnostic on a 5 series BMW and the following codes came up:P0720 STALL SPEED,065 GEAR MONITORING4(LIMP-HOME PROGRm). please help

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Error is due to a conflict of engine revs versus car speed. The control module for reasons of safety has imposed a safe home mode to prevent any further damage. The car is programmed with the data that at a certain rev output in a certain gear the car should have a certain speed. Check the following: a) The crank sensor detects engine revs. b) The transmission speed sensor detects prop rotation (there may be one on the rear differential) c) The gear selector indicates which gear has been selected. Check that all are clean, that the wiring is intact and that connections are clean and tight

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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My BMW 2002 starts out good in morning but when it gets warm or hot my transmission failsafe light comes on what can I do


BMW has been using electronically controlled automatic transmissions in most models since the late '80s. These transmission systems employ a transmission control unit which controls electrical solenoids to manipulate the various control and shift valves and functions in the transmission valve-body. When the transmission control unit detects a problem that it "thinks" could be damaging to the transmission or engine, it goes into a fail-safe or "limp" mode. In this mode, the transmission will function in reverse normally, but in forward it will operate in only one gear (whether you have the shifter in D, or any of the lower gears). This will typically be 3rd or 4th gear, depending on the model. It will start in this gear and stay in this gear with no shifting. You would experience this as sluggish acceleration and higher than normal engine speed at about 40-mph and above.
If you must drive the vehicle when the transmission is in the fail-safe mode, accelerate gently and keep the road speed lower than full highway speed.
Earlier models do not employ fault codes and must be diagnosed manually. Late models do employ fault codes and a diagnostic/scan machine can be used to check and read the faults to assist in diagnostics. Note that this is not your common OBD-II engine management fault code tool. This is what A BMW dealer or a properly equipped independent shop would have for full vehicle system diagnostics and coding operations.

Jun 15, 2017 | BMW Cars & Trucks

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What are the probable causes of DTC P0720?


According to the database the code means OUTPUT SPEED SENSOR CIRCUT MALFUNCTION.

Dec 12, 2015 | Cars & Trucks

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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

2 Answers

Luck off power trasmission safe mode cames on code p0720


p0720 is usually a speed sensor. Newer BMWs have a speed sensor at each wheel, which also sends information to your traction control. If one of the sensors is giving a wrong reading, the vehicle thinks you are losing traction and it cuts power.
If you need further assistance, please let me know. I will need your vehicle year and model.

Mar 27, 2011 | BMW 750 Cars & Trucks

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1996 bmw 328i automatic seems to be stuck in first gear. What should I check first?


You probably will have a check engine light coming up on your dashboard.The best option is to have a diagnostic test done which will give you some codes. Once you get these codes you can start troubleshooting the car. Hope this helps.

May 02, 2010 | 1996 BMW 3 Series

1 Answer

Check engine light with following codes p 1529 p0720 p0715


P1529 indicates that your TCM asked the ECM to turn on the check engine lamp.

The range switch and the output speed sensors are the items that are abnormally affecting the operation of the transmission. The diagnostic logic in your computer can distinguish these issues from one another, so you'll definitely want to do both. You have no diagnostic code for the input speed sensor (P0715) listed, so I have made no recommendation to replace it. In my opinion, it's not a labor-intensive repair, so I wouldn't recommend replacing it unless you have reason to believe it's bad.

DTC - P0720 (OUTPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0720 Output shaft speed sensor system
If the output from the output shaft speed sensor is continuously 50% lower than the vehicle speed for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h or more, it is judged to be an open circuit or short-circuit in the output shaft speed sensor and diagnostic trouble code No. P0720 is output. If diagnostic trouble code No. P0720 is output four times, the transmission is locked into 3rd gear or 2rid gear as a fail-safe measure.
Probable cause
Malfunction of the output shaft speed sensor
Malfunction of the transfer drive gear or driven gear
Malfunction of connector
Malfunction of the TCM

DTC - P0715 (INPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0715 input shaft speed sensor system
If no output pulse is detected from the input shaft speed sensor for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h (19 mph) or more, it is judged to be an open circuit or short-circuit in the input shaft speed sensor and diagnostic trouble code No. P0715 is output. If diagnostic trouble code P0715 is output four times, the transaxle is locked into 3rd gear or 2nd gear as a fail-safe measure.
Probable cause
Malfunction of the input shaft speed sensor
Malfunction of the underdrive clutch retainer
Malfunction of connector
Malfunction of the TCM

Is needed replace.

Nov 04, 2009 | 2001 Hyundai Elantra

1 Answer

Where do I find speed sensors on a 2003 Nissan Murano?



P1574 is the ASCD Vehicle Speed Sensor so it would be relative to your speedo problem.

P0720 is the out put speed sensor, And the sensor is going to be towards the out put shaft to the axle. 
Good luck and hope this helps.

May 02, 2009 | 2003 Nissan Murano

1 Answer

1991 bmw 520i transmission goes into 'safe' mode


quoted from BMWE34.network
" Transmission locks in "limp" mode - 3rd gear so you can "limp" home or to your nearest dealer."

"Things to check before even contemplating a transmission overhaul:
Check electrics - Alternator and battery.
Replace DME Relay and Fuel Pump Relay - not expensive.
Remove disassemble, clean and reassemble gear selector switch - If it looks beyond saving, replace ($200)
Service the transmission ($130 from a specialist) and check/replace transmission speed sensor ($90)"

Feb 24, 2009 | 1991 BMW 5 Series

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