Technical Red light

[djclumsy]

First trip out and this red light came came on, does anyone know what it's for?
it's B694 fiat 1997 p reg
2.5td
I'm fairly sure it's not the step warning

 

[Greasytrucker]

Ducato 1996 2.5 Diesel warning light | FIAT Ducato

Hi all I have a Ducato Bus, 1996 2.5 diesel. I have some problems with the electricity in the bus, like this red light that is constant all the time. I have not been able to find out what this light means as I do not have a owners manual. Is there somone who can help me along here? Best wishes...

www.fiatforum.com

Have a read of that

 

[djclumsy]

Ducato 1996 2.5 Diesel warning light | FIAT Ducato

Hi all I have a Ducato Bus, 1996 2.5 diesel. I have some problems with the electricity in the bus, like this red light that is constant all the time. I have not been able to find out what this light means as I do not have a owners manual. Is there somone who can help me along here? Best wishes...

www.fiatforum.com

Have a read of that

I'll check

Ducato 1996 2.5 Diesel warning light | FIAT Ducato

Hi all I have a Ducato Bus, 1996 2.5 diesel. I have some problems with the electricity in the bus, like this red light that is constant all the time. I have not been able to find out what this light means as I do not have a owners manual. Is there somone who can help me along here? Best wishes...

www.fiatforum.com

Have a read of that

Wow that's confusing ,are they talking about the earth on the alternator?

 

[Greasytrucker]

If you’ve got a multimeter you could check the voltage of the battery, then start the engine and check whilst running, this should either point to or eliminate an alternator fault of some description

 

[Communicator]

I'll check

Wow that's confusing ,are they talking about the earth on the alternator?

@djclumsy are you referring to my post #4 in linked thread? The alernator body, and engine block are all "earth" or battery negative.

 

[djclumsy]

@djclumsy are you referring to my post #4 in linked thread? The alernator body, and engine block are all "earth" or battery negative.

Or maybe I did understand it
So I should check all the earths ?

 

[djclumsy]

@djclumsy are you referring to my post #4 in linked thread? The alernator body, and engine block are all "earth" or battery negative.

Also just bit of info when I turn the ignition on the amber glow plug light comes on and when that goes out the red lights goes out then comes on straight after, if that helps

 

[Communicator]

Or maybe I did understand it
So I should check all the earths ?

I would be more concerned about checking the battery voltage, as suggested by @Greasytrucker .

 

[djclumsy]

I would be more concerned about checking the battery voltage, as suggested by @Greasytrucker .

I'll check that in the morning

If you’ve got a multimeter you could check the voltage of the battery, then start the engine and check whilst running, this should either point to or eliminate an alternator fault of some description

Thanx I'll check that in the morning
So just to clarify check volts when switched off then turn engine on and volts should increase ?

 

[Greasytrucker]

I'll check that in the morning

Thanx I'll check that in the morning
So just to clarify check volts when switched off then turn engine on and volts should increase ?

Yep, resting voltage should be around 12.8v (if healthy) and when running should be upwards of 13.8v (roughly)

 

[djclumsy]

Yep, resting voltage should be around 12.8v (if healthy) and when running should be upwards of 13.8v (roughly)

Thanx

 

[Communicator]

I'll check that in the morning

Thanx I'll check that in the morning
So just to clarify check volts when switched off then turn engine on and volts should increase ?

Yes, should go up to over 14V when engine revved. If red warning light comes on when driving, it may be that the alternator has failed, and you are running on the battery...... On 2.5TD, if you minimise the use of electrical devices you could probably keep going for quite some time, until there is insufficient power left to keep the stop solenoid operated.

 

[djclumsy]

Yep, resting voltage should be around 12.8v (if healthy) and when running should be upwards of 13.8v (roughly)

So resting voltage was13.9
And running voltage was 14.5

 

[Communicator]

So resting voltage was13.9
And running voltage was 14.5

That is good news. Did the red light go out?

 

[djclumsy]

Yes, should go up to over 14V when engine revved. If red warning light comes on when driving, it may be that the alternator has failed, and you are running on the battery...... On 2.5TD, if you minimise the use of electrical devices you could probably keep going for quite some time, until there is insufficient power left to keep the stop solenoid operated.

So I've just checked all the voltages and they seem ok ,
Then I decided to change the twin cooling fan as one of mine had seized
Put it back together again with new fan and shroud
Start van up again and the light was on but went out when van was started

 

[djclumsy]

So resting voltage was13.9
And running voltage was 14.5

So I've just checked the all the voltages and they seem ok ,
Then I decided to change the twin cooling fan as one had seized
Put it back together again with new fan and shroud
Start van up again and the light was on but went out when van was started

 

[djclumsy]

Yep, resting voltage should be around 12.8v (if healthy) and when running should be upwards of 13.8v (roughly)

So I've just checked the all the voltages and they seem ok ,
Then I decided to change the twin cooling fan as one had seized
Put it back together again with new fan and shroud
Start van up again and the light was on but went out when van was started

 

[djclumsy]

That is good news. Did the red light go out?

yeah no idea why though
I decided to change the twin cooling fan as one had seized
Put it back together again with new fan and shroud
Start van up again and the light was on but went out when van was started

 

[Communicator]

yeah no idea why though
I decided to change the twin cooling fan as one had seized
Put it back together again with new fan and shroud
Start van up again and the light was on but went out when van was started

If as we think, the red light is the battery/alternator warning light, then that is what it should do. Get worried if it stays on when the engine is running.