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Where do i find the engine sensor data - 2003 Ford Expedition

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The data is stored in the engine management computer, and is read with a scanner. The scanner typically gives codes, you look those up...

Posted on Aug 22, 2010

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Posted on Jan 02, 2017

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I have a 2010 Chevy impala LS instrument cluster and it has a 20 pin plug I'm trying to figure out which wire's on the back of the cluster are for the speed sensor, rpm, gas, and temp wires.


Boy your way off base . All the gauges are inputs from the ECM - engine computer . The VSS - vehicle speed sensor , ETC - engine coolant temp sensor , sending unit in the fuel tank , All this sensors input the engine computer . The PCM then sends this info on the GMLAN serial data bus ,communications network . The Instrument cluster has a microprocessor inside that translates this info an controls the gauges. You probably have an instrument cluster problem or a communication network problem . Your best bet is to take your vehicle to the dealer or some other qualified repair shop. Need to have it checked for DTC'S - diagnostic trouble codes.
Indicators and Warning Messages
Refer to Indicator/Warning Message Description and Operation.
Engine Coolant Temperature Gage
The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine coolant temperature. The IPC receives the coolant temperature information via serial data message from the body control module (BCM). The engine coolant temperature gage defaults to 60?°C (140?°F) or below if:
?€¢
The ECM detects a malfunction in the engine coolant temperature sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.
Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the fuel level percent. The body control module (BCM) sends the fuel level information from the ECM to the IPC via a serial data message indicating the fuel level percent. The fuel gage defaults to empty if:
?€¢
The ECM detects a malfunction in the fuel level sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.
When the fuel level is less than a pre-determined value, the low fuel indicator illuminates in the IPC.
Odometer
The vehicle odometer is calculated and stored electronically in the instrument panel cluster (IPC). The IPC contains a season odometer and trip odometer A or B. Momentarily press the trip/fuel button in order to toggle between the season odometer and the trip odometer. Press the set/reset button for greater than 0.25 seconds, while the trip odometer is displayed, in order to reset the trip odometer. The IPC displays the vehicle mileage and trip mileage as determined by the engine control module (ECM). The IPC calculates the mileage based on the serial data vehicle speed information from the ECM. The odometer will display 'error' if an internal IPC memory failure is detected. The odometer displays either miles or kilometers and can be set through the customization menu in the driver information center (DIC).
PRNDL Display
The instrument panel cluster (IPC) displays the selected gear position as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the gear position. The PRNDL display blanks if:
?€¢
The ECM detects a malfunction in the transmission range switch circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the body control module (BCM).
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed as determined by the engine control module (ECM). The IPC calculates the mileage based on serial data vehicle speed information from the ECM. The IPC receives vehicle speed information from the body control module (BCM) via a serial data message. The speedometer defaults to 0 km/h (0 mph) if the IPC detects a loss of serial data communications with the ECM or BCM.
Tachometer
The instrument panel cluster (IPC) displays the engine speed as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine speed. The IPC receives the engine speed information from the body control module (BCM) via a serial data message. The tachometer will default to 0 RPM if:
?€¢
The ECM detects a malfunction in the engine speed sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.

How to Diagnose Controller Area Network CAN Suggest you read up on C.A.N.

May 14, 2016 | Cars & Trucks

2 Answers

Where is the location of the engine data sensor on a 1994 ford escort hatchback lx


Which sensor? There are several 'engine data' sensors. What particular data is it?

Cam position
Crank position
Coolant temerature
Airflow
Air temperature
Knock sensor
Oil pressure
??

Dec 30, 2014 | Ford Cars & Trucks

1 Answer

Where is the engine data sensor located on a 1994 fordescort lx


There are a bunch of sensors on the engine. Which one? If your looking for the engine control module, it is on the passenger side, mounted in the firewall.

Dec 30, 2014 | 1994 Ford Escort

1 Answer

Fan not working


the engine computer grounds the fan relay based on data from that sensor. if the sensor is unplugged the computer turns the fan on to protect the engine from overheating. so that part of the system is working.
for some reason the sensor is not telling the computer the engine is hot enough to need the fan.
you would need to use a scanner to watch the data signal coming from the sensor as the engine warms up to check it.

Jan 31, 2014 | 2000 Hyundai Sonata

1 Answer

Can a o2 sensor keep engine from starting


Generally speaking, no.
The sensor gives the computer data to adjust the fuel mixture.
You could unplug the sensor and run the engine but the check engine light would be on.
The computer uses a default data reading in place of the sensor, and there would be a risk of damage to the engine and catalytic converter.

Jan 14, 2013 | Mitsubishi Endeavor Cars & Trucks

1 Answer

Insufficient data from O2 sensor for smog


To review - - after you disconnect the battery you need to drive the vehicle at highway speed for 20 - 50 miles to allow the computer to "re-learn" the data parameters. This means getting the engine up to operating temp and speeds of at least 50 mph.
If the engine does not reach operating temp some of the sensors will not be active yet.

Jun 26, 2012 | 2004 Chrysler PT Cruiser

1 Answer

How do I fix 04 Jeep grand Cherokee has a code P01281


Diagnostic Trouble Code (DTC) P01281 has a generic description of "Engine Coolant Temperature Cold Too Long".

The Powertrain Control Module (PCM) collects data from the Engine Coolant Temperature (ECT) sensor at engine startup. After more than 3 minutes of engine operation and less than 1 hour of engine operation, it will again monitor the ECT data. DTC P01281 sets when the ECT data does not indicate sufficient engine warm-up during this time.

The possible causes are:

> Faulty Engine Coolant Temperature (ECT) sensor
> ECT circuit malfunction
> Engine coolant thermostat stuck open

If you are also not getting much heat from your heater lately, the problem is MOST LIKELY the thermostat.

Otherwise, ECT operation should be verified using a scanner that can read live data from the ECT at the PCM and comparing this reading with the actual engine temperature as it is measured near the ECT sensor with an infrared thermometer. If the thermometer does not agree with the ECT data, then the ECT sensor and circuit must be diagnosed to find the cause. If the thermometer DOES agree with the ECT data, then replace the thermostat.

Nov 20, 2011 | 2004 Jeep Grand Cherokee

3 Answers

I have 2003 Lincoln LS. I left my lights on and I think I killed the battery. Because when I tried to start the engine it barely turned over. So I setup the trickle charger and let it charge for like 3...


2 things come to mind. first a trickle charg will take about 8 to 10 hours to fully charge the battery, so you might need to charge it longer to see if the battery takes a full charge. did you try jumping the car with another.
second is it possible the charger was hooked up backwards (pos to neg and vice versa)

Jan 16, 2011 | 2002 Lincoln LS

1 Answer

Tach data error and engine temp data error lights are on, engine wont turn over, but acts like it wants to start.... what do i do?!


you say the engine won't turn over yet it acts like it wants to start which sounds like it is turning over. Please clarify. If it is turning over but not actually starting it could be related to the temp data error. for most cars the two main sensors for fuel delivery are the oxygen sensor and the engine temp sensor. It would help you alot to get a scanner to read the computer. this would reveal a code which says where the problem really is. good luck

Apr 25, 2010 | 1995 Lincoln Continental

3 Answers

TOYOTA TACOMA 2001 PROBLEMS


That code is for your Air/Fuel Sensor Heater Circuit Malfunction (Bank
1 Sensor 1). Basically that circuit is either getting to much current or not enough. That can be cause by a couple things i can think of off the top my head like open or short in that circuit, or a faulty Engine control Module (ECM), Or Possibly your A/F sensor heater could be faulty. Without looking at the data and testing your truck its hard to be exact but i hope this helps.

Jun 14, 2009 | 1999 Toyota Camry

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