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09 pontiac g6 2.4 has trouble shifting, error message on odometer set a code for output shaft speed sensor performance. Could it be my PCM or the transmission?

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  • Cars & Trucks Master
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The code tells you that it is a sensor so that is what I would be looking at fixing first. Have a pressure test done on the box to remove any pressure problem indicators before you pull the box.

Posted on Jul 25, 2013

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Need to find fuse control for ford five hundred 2004 cruise control


Do you mean 2005 ? Didn't have five hundred in 2004 !
Speed Control The speed control system consists of the following components:
  • speed control switches
  • speed control deactivator switch
  • speed control indicator
  • powertrain control module (PCM)
  • electronically controlled throttle body
  • clockspring
The speed control system is controlled by the powertrain control module (PCM). The speed control system is designed to maintain a selected vehicle speed between 48 and 200 km/h (30 and 124 mph). The speed control system is controlled by the steering wheel mounted switches (ON, OFF, SET+, SET-, CANCEL, and RESUME), and the brake pedal. The steering wheel mounted switches are hardwired to the PCM.
The speed control functions include:
  • turn the speed control system on
  • set and maintain the desired vehicle speed
  • accelerate the vehicle speed
  • decelerate the vehicle speed
  • resume the prior vehicle speed
  • turn off the vehicle speed control system
  • cancel the speed control
  • Smart junction box (SJB) fuse 18 (10A
  • Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index DTC Description Source Action P0579 Cruise Control Multifunction Input A Circuit Range/Performance PCM Go To Pinpoint Test C . P0581 Cruise Control Multifunction Circuit High PCM Go To Pinpoint Test C . P0720 Output Shaft Speed Circuit Fault PCM REFER to Section 307-01A or Section 307-01B . P0721 Output Shaft Speed Circuit Fault PCM REFER to Section 307-01A or Section 307-01B . P1500 Vehicle Speed Error PCM REFER to Section 307-01A or Section 307-01B . P1501 Vehicle Speed Error PCM REFER to Section 307-01A or Section 307-01B . P1572 Brake On/Off Failure PCM Go To Pinpoint Test B . P1703 Brake On/Off Failure PCM Go To Pinpoint Test B . Highly doubt a fuse problem . Take it to a qualified repair shop.

Jul 18, 2017 | Ford Cars & Trucks

4 Answers

How to fix cruise control on a 2006 ford freestar, does not work at all, wont turn on


Note the diagram, at least check the fuse. Check trouble codes, related to cruise control. to check codes yourself, at least, you need an obd2 code reader that will read po codes as well as manufacturer specific codes. It is worth the investment, in my opinion. Make sure the brake lites work.
cruise 1-hvxehrcewwphuchbcyrcpopp-5-0.jpg

cruise 2-hvxehrcewwphuchbcyrcpopp-5-2.jpg

Mar 05, 2017 | Ford Cars & Trucks

1 Answer

2007 Ford five hundred cruise control turns off when you hit a bump


First off the cruise control is computer controlled , need to check for diagnostic trouble code's . Your vehicle has electronic throttle control also . If your don't have a factory or professional grade scan tool your odds of being able to fix this yourself is close to zero ! You could find a wiring diagram an do some voltage drop testing ,mite find lose connection .
Speed Control
The speed control system consists of the following components:
  • Speed control switches
  • Speed control deactivator switch
  • Speed control indicator
  • Powertrain control module (PCM)
  • Electronically controlled throttle body
  • Clockspring
The speed control system is controlled by the PCM. The speed control system is designed to maintain a selected vehicle speed between 48 and 200 km/h (30 and 124 mph). The speed control system is controlled by the steering wheel mounted switches (ON, OFF, SET+, SET-, CANCEL, and RESUME), and the brake pedal. The steering wheel mounted switches are hardwired to the PCM.
The speed control functions include:
  • Turning the speed control system on.
  • Setting and maintaining the desired vehicle speed.
  • Accelerating the vehicle speed.
  • Decelerating the vehicle speed.
  • Resuming the prior vehicle speed.
  • Turning the vehicle speed control system off.
  • Canceling the speed control.
The clockspring provides the electrical interface between the steering column wiring and the speed control switches in the steering wheel.
The inputs to the PCM are:
  • Output shaft speed (OSS) sensor
  • Speed control switches
  • Stoplamp switch
  • Speed control deactivator switch
  • SJB messages
The outputs of the PCM for the speed control system are:
  • Speed control indicator lamp
  • Throttle command
The throttle position is completely controlled by the PCM through the electronically controlled throttle body. Speed control electronics are contained entirely within the PCM.
When the speed control system is active, the PCM corrects for deviations in the actual vehicle speed by proportionally moving the throttle plate. The PCM modulates the throttle to minimize error between actual vehicle speed and the desired speed.
The PCM strategy uses the throttle control for smooth accelerations.
The PCM sends a serial message over the controller area network (CAN) to the instrument cluster whenever the speed control telltale should be turned on or off.
In the event of an OFF command or a deactivation request from the deactivator switch, the speed control system carries out a hard deactivation and immediately returns the throttle to the idle position.
In the event of a CANCEL command input, the system deactivates and the throttle returns to the idle position at a smooth and controlled rate.
The speed control system provides self-diagnostics. The speed control system is disabled anytime an error is detected in the system. No cluster telltale or message center messages are displayed when faults occur. Fault codes are logged by the PCM.
An electronic throttle control (ETC) system fault also causes the speed control system to be disabled. In this case, an ETC system warning indicator or message center message is displayed.
Additionally, the following conditions cause the speed control system to deactivate:
  • Transmission gear selector is put into a position other than D or OD.
  • Parking brake is applied.
  • Speed control set speed is over-ridden with the accelerator pedal for a period longer than 5 minutes.
  • Vehicle speed loss from set speed of greater than 16 km/h (10 mph) occurs.
  • Vehicle speed falls below the minimum allowable limit of 48 km/h (30 mph).
  • Speed control switch is pressed or stuck longer than 2 minutes.
  • Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index DTC Description Action P0579 Cruise Control Multifunction Input A Circuit Range/Performance Go To Pinpoint Test C . P0581 Cruise Control Multifunction Circuit High Go To Pinpoint Test C . P0720 Output Speed Sensor Circuit REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. P0721 Output Speed Sensor Circuit Range/Performance REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. P1500 Vehicle Speed Error REFER to Section 307-01A or Section 307-01B . P1501 Vehicle Speed Error REFER to Section 307-01A or Section 307-01B . P1703 Brake On/Off Failure Go To Pinpoint Test B .


    Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Index DTC Description Action P0720 Output Speed Sensor Circuit REFER to Section 307-01A . P0721 Output Speed Sensor Circuit Range/Performance REFER to Section 307-01A .

Mar 04, 2016 | 2007 Ford Five Hundred Limited Sedan

1 Answer

2000 GMC Jimmy 4×4 The ABS light is on, the speed odometer does not work, and it does shift out of 1st gear, if I manually put it into second gear then it will shift fine, it has a changed VSS


Did you have it check for DTC'S - diagnostic trouble codes ?
Speedometer
The speedometer is an analog gauge that is located in the instrument cluster. The PCM/VCM receives an analog input from the vehicle speed sensor and converts it to a digital signal containing 4,000 pulses per mile (PPM) for the instrument cluster.
The PCM/VCM sends this digital output (4,000 PPM) to the instrument cluster on a designated circuit. These pulses can be measured in Hertz (Hz) using a digital multimeter (DMM) on the AC scale. The PCM/VCM calibration is matched to the final drive and tire size of each vehicle. If the final drive or tire size is changed for any reason, the PCM/VCM must be updated in order to match the new final drive or tire size. If not, the signal will not be accurate for proper speedometer/odometer operation. An incorrect signal can affect the antilock brakes and the cruise control systems.
The speedometer system consists of the instrument cluster, vehicle speed sensor (VSS), PCM/VCM and related wiring. The VSS is a permanent magnet signal generator that sends an analog signal proportional to the propeller shaft speed to the PCM/VCM. The VSS mounts to the transmission tailshaft extension housing on 2-wheel drive (2WD) models and the transfer case output shaft housing on 4-wheel drive (4WD) models.
Repairs to the instrument cluster can only be performed by an authorized instrument cluster service center. DTC P0502 Vehicle Speed Sensor (VSS) Circuit Low Input and DTC P0503 Vehicle Speed Sensor (VSS) Circuit Intermittent in Automatic Transmission - 4L60-E
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit in Engine Controls - 4.3L Important: If the instrument cluster is completely inoperative, refer to Instrument Cluster Inoperative .
Install a scan tool.
Raise the vehicles drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
Start the engine.
Place the transmission into drive for automatic transmission and third gear for manual transmission.
Compare the displayed vehicle speed on the Instrument Cluster with the monitored speed on the scan tool.
Does the vehicles speedometer and the scan tool both display 0 km/h (0 mph)? You really need a Factory scan tool or equivalent to check this . The VSS is an input to the PCM/VCM . engine computer . You can test with a DVOM - digital volt ohm meter , for signal to engine computer .
I know most people don't like hearing this , but I suggest you take it to a ASE certified repair facility .

Feb 21, 2016 | GMC Cars & Trucks

1 Answer

Speed sensor


Hi I'm Peter your code P0720 Output Speed Sensor Circuit Malfunction This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model.
On electronically controlled transmissions, the Output Shaft Speed Sensor (OSS) is located on the end of the transmission before the drive axles or driveshaft to read the speed of the output shaft which may be used to determine shift scheduling, torque converter engagement schedule and Electronic Pressure Control (EPC) inside the transmission. The Powertrain control module / Engine control module (PCM/ECM) has determined there is a malfunction with the OSS sensor. The PCM/ECM may substitute values based on other sensors to determine shift timing, torque converter operation and EPC pressure if the OSS sensor information is unavailable. The OSS sensor is also commonly used for the speedometer. Note: On some vehicles, the OSS sensor is inline with the Transmission Fluid Temperature (TFT) sensor, if there is a failure with the TFT sensor or associated wiring, the OSS sensor may malfunction as well. If there is another code associated with the TFT sensor as well as the OSS sensor, suspect a possible problem with either sensor, or the wiring in between

Apr 19, 2014 | 2002 Nissan Sentra

1 Answer

2001 Hyundai Accent Output shaft speed sensor


output shaft speed sensor on top transmission. just depress the release tab disconnect electrical connector then remove output shaft sensor bolt.remove sensor.

Jul 15, 2013 | 2001 Hyundai Accent

1 Answer

Engine stalls, p0720 engine light on. Runs ok than goes sporadic.


There are 2 possibilities here:
1.- There may be a problem with the new speed sensor, the electrical wiring between the speed sensor and the PCM, or an internal PCM problem. To see if VSS signal is present at the PCM a scan tool capable of displaying live data is required.

2.- There is a recall action on this model year for erroneous speed sensor signals; the cure is an updated software calibration. If your truck has not yet had the updated calibration installed, you should call your local Dodge dealership with your VIN number and ask the service department to check to see if there are any open recall actions on your vehicle. If the software calibration has not been updated yet, they will perform this procedure free of charge for you. If you do not have the current software calibration in your PCM to correct the VSS issue, you need to have this done before proceeding any further with attempting to diagnose this problem

This sensor is located at the rear of the transmission.

Symptom: P-0720 LOW OUTPUT SPEED SENSOR RPM, ABOVE 15 MPH
When Monitored and Set Condition: P-0720 LOW OUTPUT SPEED SENSOR RPM, ABOVE 15 MPH

When Monitored: Continuously with the key on, engine running, and gear selector not in park or neutral.
Set Condition: This code is set if the vehicle speed (as determined from the vehicle speed sensor), is above 15 MPH, and the output shaft speed is below 60 RPM for 2.6 seconds.

POSSIBLE CAUSES DTC CODE RETURNS:
OUTPUT SPEED SENSOR DEFECTIVE
PARK/NEUTRAL SWITCH CODE PRESENT
OUTPUT SPEED SENSOR GROUND CIRCUIT OPEN
OUTPUT SPEED SENSOR GROUND CIRCUIT SHORT TO GROUND
OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN
OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND
PCM DEFECTIVE (DRB SHOWS > 60 RPM)
OUTPUT SPEED SENSOR HARNESS OBSERVABLE DEFECT
OUTPUT SPEED SENSOR WIRING HARNESS INTERMITTENT DEFECTIVE

Hope helps.

Sep 14, 2011 | Dodge Ram 1500 Cars & Trucks

2 Answers

No overdrive or speedo


Gearbox speed sensor unit has failed .

Aug 23, 2009 | 1993 Isuzu Trooper

1 Answer

The green overdrive light on the dash keeps flashing and the transmission jerks into gear. Any suggestions on how to solve this. The test codes that come are P1747, PO156, and PO161. I have already...


not an oxygen sensor



vehicle speed sensor or oss is most likely cause.


Output Shaft Speed Sensor (OSS) 7H103: The output shaft speed (OSS) sensor is a magnetic pickup, located at the output shaft ring gear that sends a signal to the powertrain control module to indicate transmission output shaft speed. The powertrain control module uses this signal for torque converter clutch control, shift scheduling, used in determining EPC pressure. Symptoms: No converter engagements, harsh shifts, abnormal shift schedules. DTC: P0720, P0721 std~us~en~file=d14110a.gif~gen~ref.gif


Vehicle Speed Sensor (VSS) 9E731: The vehicle speed sensor is a magnetic pickup that sends a signal to the powertrain control module. This VSS signal tells the PCM vehicle speed. The PCM uses this signal to modify upshift schedules. Symptoms: Shift engagement/disengagement (hunting) on grades. DTC: P0500, P0503, P1500, P1501, P1503

Mar 15, 2009 | 1996 Ford Thunderbird LX

1 Answer

Speed sensor on 2000 ford f150 4x4 triton 4.6


if this helps, please rate as fixya. thanks.

Vehicle Speed Sensor The vehicle speed sensor (VSS) (Figure 43) is a variable reluctance or Hall-effect sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling.


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For the 4R70W trans vehicles

Vehicle Speed Sensor (VSS)

The vehicle speed sensor (VSS) is model dependent. Possible sources of vehicle speed input are, anti-lock brake sensor (ABS), a gear-driven vehicle speed sensor (VSS), or the transmission output shaft speed (OSS) sensor. On 4x4 applications with a manual shift transfer case, the transfer case speed sensor is the source of vehicle speed. The VSS signal is either an AC signal whose frequency changes with vehicle speed, or an SCP data message depending on the source. Some vehicles have both. The vehicle speed signal is an input to various vehicle sub-systems such as the powertrain control module (PCM), instrument cluster (speedometer and odometer), speed control systems, etc. The vehicle speed source must be operational to enter output state control mode for diagnostics.

If you have a 4R100 trans, it is different.

Mar 12, 2009 | 2000 Ford F150 Flareside SuperCab

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