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Code p0720 output speed sensor for a 2001 hyundai elantra gt with an automatic transmission. What does that particular speed sensor look like, and where does it go?
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code P105 is manifold absolute pressure barometric pressure circuit. code P0445 evaporative emission system purge control valve circuit shorted. code PO720 AT output speed sensor circuit open or short ground.HAVE MANY CODES COULD BE ECM FAILING HAVE DEALERSHIP CHECK OUT ECM.ECM COULD HAVE SHORT OUT PC BOARD.
Hi there, I live in Colombia South America and I have a HYUNDAI Elantra 2001 automatic transmission and it behaves exactly like yours. I have the best mechanic guy intown and also the dealer garage take down the whole transmission and nothing changed. It seems now to be something with the electric wiring system.
I would recommend you to have the electric system checked.
P0720 almost always points to a problem with the output speed sensor itself. The sensor is located on the top of the transmission near the rear. It's held in place with one 10mm bolt. You may be able to access with a long extension and a 10mm swivel-socket. If not, you'll need to remove the air box. You'll find the sensor semi-hiding under the wiring harness that runs across the rear portion of the top of the transmission.
P1529 is simply an indicator that the transmission control module (TCM) requested the engine control module (ECM) to turn on the check engine lamp. Let me know if this helps or if you need mor help.
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
First of all, these codes are what are called "Powertrain Trouble Codes' (that's what the "P" means P=Powertrain). TCM Request (Transmission Control Module = TCM). The request was to turn on the 'Check Engine" light.
P0720 - output speed sensor circuit malfunction
P0715 - Input speed sensor (turbin speed) circuit malfunction
P0442 - Evaporative Emission System Leak (Small Leak)
P0455 - Evaporative Emission System Leak (Large Leak)
Check fuel filler cap problems - for Evap Emiss leaks
Replace the pulse generators & have the trans fluid replaced/flushed.
The Main Catalyst System Efficiency Bank 1 Is P0420, not P0442
If you had P0420 code, the catalytic converter is shot... and that's an expensive component.
YES!... There are many sensors on an automatic transmission which could pose a problem -- depending on what the problem actually is. For example, there are 'input' and 'output' speed sensors, there is a fluid temperature sensor, there is a vehicle speed sensor, and there are several solenoid valves located inside the transmission connected to the valve body. Each and every one of these items can be a problem -- again -- depends on what the problem ACTUALLY is. Agreed?
dear friend:the code P0720 stands for out put shaft speed sensor.the following items need to be checked.wiring- vehicle speed sensor-ECM-PCM- TCM and the code P0705 stand for transmittion range sensor.plse check the TR sensor.
If your Vehicle Spped Sensor has gone bad, it can cause loss of anti-lock brakes, "anti-lock" or "brake" warning lamps on the dash, the speedometer or odometer may not work properly (or at all), your vehicle's RPM limiter may be decreased or automatic transmission shifting to be erratic.
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