Question about 2000 Volvo V40

1 Answer

I have a fault in engine electronic system light come on this morning and has been going on and off, what could it be

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,400 Answers

You need to stop by any good parts store or shop and have an OBII scan (fault scan) done. Most will do it free. They will pull stored codes which will identify what problem is.

Posted on Apr 05, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Spanner showing on dash when engine running vauxhall vectra c

VECTRA CAR WITH SPANNER WARNING LIGHT This Vauxhall Vectra car with spanner warning light illuminates or flashes yellow. Light will illuminate for around 3 seconds when the ignition is switched on. If the fault light illuminates whilst the engine is running, this signifies a fault within the engine or gearbox electronics system. The system will switch to emergency mode where fuel consumption may increase and the vehicles drivability reduced. A Vauxhall workshop must be consulted. If the light flashes whilst the engine is running, this signifies a fault within the electronic immobiliser system and the engine will not be able to be restarted.

Oct 25, 2015 | Vauxhall Cars & Trucks

1 Answer

Van starts hard, then runs fine, fan is loud, service engine liht on

This is all tied to the service engine soon light.

When the Check Engine light (or Service Engine Soon or small picture of an engine) is turned on, the systems computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible system faults (the gas cap is just one of them) that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen/Oriley and Autozone parts stores (USA only) do this testing for free.

Jan 29, 2012 | 1999 Dodge Caravan

3 Answers

My check engine light came on this morning. Wondering if the reason could be that I have 66,500 miles on it and I haven't had my timing belt changed? Would that cause it? How many miles can you usually go...


The check engine light/service engine soon (yellow light) comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system u will seldom feel the car engine run any different, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.

Sep 29, 2010 | Kia Sorento LX Cars & Trucks

1 Answer

2000 Ford Mustang- Just had new tires, brakes ,tuneup and gas cap. Service engine light keeps going on.. never has before. Any ideas?

this light has NOTHING TO DO WITH MAINTAINENCE, what it means is that a malfunction has occurred in the electronic fuel injection system or the engines electronic emission control system, there are well over 200 such faults that trun this light on,when the light is turned on a fault code is set in the memory of the computer that controls the system, to find out what this code may be you must have a shop test the system, this is called an OBD2 fault code test, you may also have it tested by any Kragen or Autozone Parts store for free in most area's. This willgive u a code but not any info oon how to fix the problem that turned on the check engine light, for that u need a qualified technician

Jul 29, 2010 | 2000 Ford Mustang

2 Answers

Should my check engine light have came on to warn me that my crankshaft was going to crack?

check engine lights are only there to monitor electronic control problems with the engine fuel injection system ande the emission control systems, they have no way to monitor mechanical faults, only electronic ones.

Mar 22, 2010 | 2004 Chevrolet Cavalier

1 Answer

Check engine light on 2009 dodge challenger

when the check engine light is on it means that one or more of over 200 poss faults has occured in the electronic engine or emission controls systems, to find out what the fault code is for the problem u will need to run a fault code test of the OBD 2 electronic control system, most Discount auto parts stores lioke Kragen do this for free.

Dec 03, 2009 | 2009 Dodge Challenger

1 Answer

The engine light came on and wont go off.

the check engine light is on to alert you that a fault has occured in the electronic engine or emission system controls, the system will need to be tested by a shop to see what code was stored when the computer turned the light on, there are over 200 different faults that cause the light to be turned on.

Nov 23, 2009 | 2004 Jeep Grand Cherokee

2 Answers

Service engine soon light came on this morning. The car is running fine, all other gauges are normal.

the engine light is on to alert you to the fact that a fault has occired in the electronics of the engine or emission control system, any time this ligfht is turned on a troulbe code is set n the cmputer memory, there are over 200 such codes, so the only thing to do is have the system tested for the trouble code(s) to determine which of the over 200 poss problems has occured.

Oct 05, 2009 | 2002 Chevrolet Venture Passanger

1 Answer

Electronic Ignition Fault Light On

It is probably due to a faulty sensor somewhere, but without proper diagnostic equipment it is virtually impossible to tell which one.

A modern fuel injected engine will have sensors to monitor throttle position, manifold pressure, coolant temperature, air temperature, crank speed, camshaft position, exhaust gas oxygen, pre-ignition, etc, etc, etc.

Diagnostic equipment will be able to read the fault code from the vehicles computer and tell you where the fault lies.

The light cannot be reset manually. It will go out once the fault has been rectified.

Hope this helps!

Jun 20, 2009 | 1998 Volvo S70

1 Answer

Orange engine symbol on dashboard with check in the middle

this is the check engine light, it indicates that a fault exists in the electronic engine controls, have a test of the system run to get the fault code for the light.

Apr 03, 2009 | Daewoo Lanos Cars & Trucks

Not finding what you are looking for?
2000 Volvo V40 Logo

Related Topics:

346 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts


Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides