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How to reset the ecu


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How do I reset the service light on a 1997 Volvo S90?

Hi,there are lots of hand computers on e-bay that can read the ECU and you can cleer old faults that are stored on the ECU.
hope this was some help.
good luck.

May 01, 2015 | 1997 Volvo S90

1 Answer

I ave a 1997 ford escort LX wagaon. I need the check engine code to reset it?

its no code to reset engine light you need to scann the ecu wjit a scanner and see .. if the light is no its because the ecu see a problem end need to fix the problem to rest the light

Sep 04, 2014 | Cars & Trucks

1 Answer

Check engine is always on how to reset?

Cars have numerous sensors on the engine/drivetrain. The check engine light will come on if the cars electronic control unit (ECU ) detects a fault in a sensor. More often than not - you have to take to to a service place or dealer's service department. They hook up to a port - often inside the car. They then access the ECU memory to see what created the fault. Then - they will recommend a course of action - all at a cost of course unless the car is under warranty.

May 01, 2012 | Cars & Trucks

2 Answers

Reset service light 2001 yukon

the answers above do not work. batter cable off does not work. that turn on 5 pedal thing is BS. also some a holes online are saying undo the fuse cover under the steering wheel and and unplug the ECU - well the fuse panel is not under the wheel, it's on the drv side of the dash. AND even when you pull that there is nothing called a ecu. funny hu. there is not a ECU fuse in the under hood fuse box either. service engine soon light is STILL ON. It was flicked on from the air breather intake being loose. that has been fixed. gas caps on tight. engine oils been changed.

Mar 18, 2012 | 2001 GMC Yukon Denali

3 Answers

Service engine soon light

reset the ECU. Remove the battery lead (black, negative one) for 30 minutes. Refit, clean up the terminal while you are at it with emery paper and fire up the car. Let it idle for 10 mins.

This resets the ECU and the service light will go out.

Please vote for me, 4 thumbs for a free answer from :)

Jul 18, 2010 | 2004 Pontiac Grand Am

1 Answer

We have spent over $5000 in the past year fixing VARIOUS issues w/my 2002 Rendezvous (it was a fantastic car PRIOR to rolling over 100,000 miles) and the "Service Engine Soon" light has NEVER gone off for...

As you have already serviced it, reset the ECU by pulling the large fuse (check diagram for ECU fuse) and/or taking the battery leads off for at least 30-60mins. Reconnect and drive a while. This should reset the ECU and no more engine service light :)

Jul 08, 2010 | 2002 Buick Rendezvous

1 Answer

2006 ford focus reset engine light

the only way is to connect with a ecu analyzer-programmer to a authorized or specialized service garage to find the cause and reset the ecu.

May 20, 2010 | 2005 Ford Focus

1 Answer

What causes Service Engine Soon light to come on? I already change gas cap and O2 oxygen sensors on my Mitsubishi Endeavor 2004.

Any unsolve wrong and the ECU is advise to you. Or forgetted RESET the error codes stored in the ECU.

Unplugged the negative battery few minutes, this operation reset your ECU; if this dont work, visit any auzotone or dealer shope foe reset your OBD codes.

Hope helped.

Apr 09, 2010 | 2004 Mitsubishi Endeavor

1 Answer

My service engine light just came on and i'm wondering what that might mean and what i need to do about it now.

service due light or engine management light??
service light should be a spanner symbol engine light should be amber -yellow colour and looks like a gearbox.
service light.check if your vehicle is due a service if so book it in with your main dealer for a service and they will reset the warning indicator ,or if you know someone local who maintains your car they can reset the service light by holding in the reset trip button whilst turning ignition to pre start position on the display it should count down from ten -0 then reset itself and the light should go out.
management light
this can only be looked at by a suzuki main dealer where they have the correct diagnostic equipment .
dont worry to much if the car feels and drives ok its probably picked up a small fault in the ecu and will be cleared with the diagnostic check .

Dec 22, 2009 | 2001 Suzuki Grand Vitara

3 Answers

Check engine light is on and ECU blings 12 times.

Can't take an OBD-0/pre-OBD car to auto zone as only OBD-2 cars have a hook up for the scanner.

Jun 27, 2009 | Honda Civic Cars & Trucks

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