Strange fault with Mercedes VITO instrument cluster?
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Mercedes VITO
Strange fault with Mercedes VITO instrument cluster?
Hi guys,
I was wondering if anyone could possibly help me with anelectrical fault on my 2000 Mercedes Vito 112 CDI?
It has recently developed a strange fault with theinstrument cluster:
With the ignition off, and the key out of the car, there isthis constant noise from the cluster. Icould best describe it as that sound a PC printer makes when you first turn iton, and it’s preparing for use.Theclock set makes this noise constantly, and as it is doing this, all of theneedles (speedo, rev counter, temp and fuel gauges etc) flicker and jump alongwith the noise.Also, the odometerdisplay flashes on and off with the sound.It’s almost as though the power is constantly being flipped on andoff.
This continues constantly, and does eventually drain thebattery if left long enough.
When the ignition is turned on.. the battery light comes on,but initially no other warning lights are illuminated. But, they then all begin to flash on and off intermittently,along with this sound.. as I described before.. it’s just as though someone isflipping the power to the instrument cluster on and off.
Once the vehicle is started.. the speedo and rev counter dooperate correctly, but the temperature gauge continues to flicker at the bottomof the scale.. and that noise continues.
I’ve scanned the ECU, but with it being an older vehicle,there isn’t really much information available. The only fault code which I thought could possibly be a suspect was ‘P0600CAN’, but this may be absolutely nothing to do with the issue.. I’m really notsure?
I’ve also removed the instrument cluster from the vehicle.. that strange sound isdefinitely coming from within this unit.. and I then stripped the back off totake a look at the internal printed circuit.There are no visual signs of damage or overheating, but I’m obviously notsure if any of the components have become faulty.
So I’m kinda suspecting that it may either be a fault withinthe instrument cluster itself, or possibly an issue with the control module, orwhatever it is which supplies the signal to the clocks.
I’d be very grateful if anyone could offer me someassistance with this fault, as I’m not much of an auto electrician, and so I’mrapidly running out of ideas to move forward.
Thank you in advance for your time, it is very muchappreciated
Russ
I was wondering if anyone could possibly help me with anelectrical fault on my 2000 Mercedes Vito 112 CDI?
It has recently developed a strange fault with theinstrument cluster:
With the ignition off, and the key out of the car, there isthis constant noise from the cluster. Icould best describe it as that sound a PC printer makes when you first turn iton, and it’s preparing for use.Theclock set makes this noise constantly, and as it is doing this, all of theneedles (speedo, rev counter, temp and fuel gauges etc) flicker and jump alongwith the noise.Also, the odometerdisplay flashes on and off with the sound.It’s almost as though the power is constantly being flipped on andoff.
This continues constantly, and does eventually drain thebattery if left long enough.
When the ignition is turned on.. the battery light comes on,but initially no other warning lights are illuminated. But, they then all begin to flash on and off intermittently,along with this sound.. as I described before.. it’s just as though someone isflipping the power to the instrument cluster on and off.
Once the vehicle is started.. the speedo and rev counter dooperate correctly, but the temperature gauge continues to flicker at the bottomof the scale.. and that noise continues.
I’ve scanned the ECU, but with it being an older vehicle,there isn’t really much information available. The only fault code which I thought could possibly be a suspect was ‘P0600CAN’, but this may be absolutely nothing to do with the issue.. I’m really notsure?
I’ve also removed the instrument cluster from the vehicle.. that strange sound isdefinitely coming from within this unit.. and I then stripped the back off totake a look at the internal printed circuit.There are no visual signs of damage or overheating, but I’m obviously notsure if any of the components have become faulty.
So I’m kinda suspecting that it may either be a fault withinthe instrument cluster itself, or possibly an issue with the control module, orwhatever it is which supplies the signal to the clocks.
I’d be very grateful if anyone could offer me someassistance with this fault, as I’m not much of an auto electrician, and so I’mrapidly running out of ideas to move forward.
Thank you in advance for your time, it is very muchappreciated
Russ
