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What does a input and output sensors do on a 05 ford expedition and will they make the o/d light come on and flash

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Input and output sensors could refer to a few systems on your vehicle, if you get the OBD codes read the code number will identify which sensors are faulty, they could refer to the over drive function but also exhaust, fuel injection

Posted on Jan 12, 2019

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Posted on Jan 02, 2017

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SOURCE: reset ems (check engine light) on ford expedition

Try to remove positive baterry terminal for 20 minutes and install it nack. That will reset your ECU and it will run little rought tilll learn new change in 02 sensor.

Posted on Feb 20, 2010

yossogoth
  • 21 Answers

SOURCE: I have a 05 Ford expedition my brake lights and

bad ground or relay. emergency lights run on a separate system

Posted on May 18, 2012

  • 103 Answers

SOURCE: 05 ford expedition air bag light flashes

It may appear if there is a particular sensor fails.
Try stopping the indication using the following technique.
Sometimes the problem could be solved.

If you can get an OBD 2 scanner off eBay (US$ 6), you could be able to communicate with your car ECU (Electronic Control Unit) using the smart-phone app.

So that, there is a chance to CLEAR all the error indications.

After that, if problem still persists, it means the vehicle need full scan (you can't do this at home, probably seek a vehicle garage).

Clarification:
gnaveendra@gmail.com

Posted on Oct 22, 2015

  • 1153 Answers

SOURCE: 05 expedition I changed the filter and the output shaft speed sensor and it still don't want to drive have to keep revung up the gas until it catches I'm lost

What filter did you change? How about the fuel filter. Sounds like fuel starvation. What prompted the speed sensor change. They rarely go bad. I recommend an ODBII scan, with a print out of the stored fault history. Let the OBDII scan be your guide to any parts replacement, to avoid buying parts you don't need. All filter replacement should be done every 30,000 miles.

Posted on May 19, 2017

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1 Answer

What is the problem when on 2006 Ford expedition overdrive light flashes and will not shift out while driving?


run the fault codes to check for OD servo/solenoid problems or a problem TCM/ speed sensor unit.

Sep 08, 2014 | 2006 Ford Expedition

1 Answer

I have a 2003 Ford Expedition 5.4L...My air bag light flash 4 time and right after 9 times so I think it means code# 49.....Thanks


never saw a 49 code ,a weak battery or faulty battery connection
perhaps.
12=Low Battery Voltage
13=Air Bag Circuit Shorted to Ground
14=Primary Crash Sensor Circuit Shorted to Ground
21=Safing Sensor Not Mounted to Vehicle Properly
22=Safing Sensor Output Shorted to Battery Voltage
23=Safing Sensor Circuit Input Feed/Return Circuit Open
24=Safing Sensor Output Feed/Return Circuit Open
32=Driver Side Air Bag Circuit High Resistance or Open
33=Passenger Side Air Bag Circuit High Resistance or Open
34=Driver Side Air Bag Circuit Low Resistance or Shorted
35=Passenger Side Air Bag Circuit Low Resistance or Shorted
41=RH Primary Crash Sensor Feed/Return Circuit Open
42=LH Primary Crash Sensor Feed/Return Circuit Open
44=RH Primary Crash Sensor Not Mounted to Vehicle Properly
45=LH Primary Crash Sensor Not Mounted to Vehicle Properly
51=Air Bag Diagnostic Monitor Internal Thermal FuseFuse Blown Due to Intermittent Short to Ground
52=Backup Power SupplyVoltage Boost Fault
53=Primary Crash Sensor Circuits Resistance to Ground or Air Bag Diagnostic Fault

Feb 22, 2013 | Cars & Trucks

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P0720 speedometer and car speed problems


if it worked for a short time then check the wiring around the sensor you would have moved them around changing the sensor

Aug 12, 2012 | 2002 Ford Escape

1 Answer

1997 expedition PO503 code, 4WD, 4.6 motor, changed coil pack and spark plug


The code is specific to the engine speed sensor located on the side of the transmission near the output shaft. This device measures the output shaft rotation speed and allows the Electronic Control Unit (ECU - power control module) to program gear shifts as well as when to engage anti lock braking or traction control (by monitoring the output shaft speed sensor and comparing this with inputs from the wheel hub sensors). Locate the speed sensor connection and make sure the all the electrical contacts are free of dirt and corrosion. Remove the speed sensor and make sure that it looks physically OK and is clean, especially its tip. Check that all the wires are intact and that there is electrical continuity back to the ECU. The error code is consistent with an intermittent connection but if you suspect that the sensor itself is at fault it is not a very expensive item to replace.

Nov 25, 2010 | 1998 Ford Expedition

1 Answer

Engine light on-trouble code P0452


EVAP fuel tank pressure sensor low output. It sounds like the charcoal -filled canister, it's near the gas tank in a cylinder shape.The canister may have cracks or a hose is leaking around the area and it will give a fault code of PO452. Are you smelling any odors or emission smell from the car?

Feb 26, 2010 | 2002 Ford Expedition

3 Answers

1999 ford expedition - transmission slip?


the flashing O/D light usually means you have a bad speed sensor that sends speed info to the engine & trans computer.

Vehicle Speed Sensor The vehicle speed sensor (VSS) (Figure 42) 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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Vehicle Speed Sensor The vehicle speed sensor (VSS) (Figure 42) 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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Some trans use an OSS, Output Shaft Sensor instead of a VSS. Depends on which trans you have, 4R100 or 4R70W

Transmission Control Switch (TCS) and Transmission Control Indicator Lamp (TCIL)
The transmission control switch (TCS) is a momentary contact switch. When the switch is pressed, a signal is sent to the powertrain control module (PCM) to allow automatic shifts from first through fourth gears or first through third gears only. The PCM energizes the transmission control indicator lamp (TCIL) when the switch is off.

The TCIL indicates overdrive cancel mode activated (lamp on) and electronic pressure control (EPC) circuit shorted (lamp flashing) or monitored sensor failure.

Output Shaft Speed (OSS) Sensor
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 (PCM) to indicate transmission output shaft speed. The OSS is used for torque converter clutch control, shift scheduling and to determine electronic pressure control.

Apr 18, 2009 | 1998 Ford Expedition

2 Answers

05 ford expedition air bag light flashes


Time to take the vehicle to your local Ford dealer to have the system diagnosed and have the needed repairs completed. Do not try to fix the system yourself as you may deploy the sir bag by accident and injury may occur. Not to mention that replacement of an air bag is very expensive. Let the techs that are trained to deal with these systems take care of the problem for you.

Mar 11, 2009 | 2005 Ford Expedition

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