2008 mondeo diesel dashboard problem - Electrical (Mk4 Mondeo) - TalkFord.com

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2008 mondeo diesel dashboard problem


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5 replies to this topic

#1 stevebs58

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Posted 01 October 2020 - 02:00 PM

I am familiar with instrument cluster problems having already replaced one however I have a new problem that I am not sure if it is the cluster or not and have not been able to find an answer within the forums.

 

Whilst driving I experience intermittent total instrument power failure simultaneously with loss of display on the climate control and the steering wheel control illumination, this lasts from a few seconds up to a few minutes. the instruments lose all the dials digital screen and illumination and I also appear to lose the indicators although this may be just because the repeater on the dash and the audible click has also stopped working.

 

This seems more like a  power supply/canbus? problem.

 

I do not want to replace the instrument cluster again if the problem actually lies elsewhere. Does anyone have any experience of this issue or suggestions on how to diagnose without getting a garage to start replacing parts one by one.

 

I have also replaced the battery within the last 12 months.



#2 TheAntman

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Posted 02 October 2020 - 08:02 AM

Sounds to me like you are having general connectivity issues. Could even be a connector somewhere not fully plugged in (I had something similar with another vehicle a few years ago. The stereo just died. When I took it out to inspect, I found that one of the connectors had come out)



#3 gjovano011

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Posted 03 October 2020 - 09:06 AM

Hi,

Same problem on my mondeo MK4, 2009, 1.8TDCi,

my IPC (panel) and HVAC are dead. Car start regularly, everything works but no signalization.

I check CAN-bus resistance on OBDII connector, cca 150 Ohm. Correct is 60 Ohm.

Release IPC connector, CanBus resistance is 0 Ohm? Is this correct?

Pull connector again, "shake a little" connector on IPC and everything works fine.... but not for a long time. Problem persist. Car work good.

How can I find wiring diagram? Does anyone have idea what to do?



#4 mike4369

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Posted 03 October 2020 - 10:54 AM

Try dismantling the connector to check for corrosion or loose connection/ broken wire.



#5 gjovano011

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Posted 06 October 2020 - 09:26 AM

I

Try dismantling the connector to check for corrosion or loose connection/ broken wire.


Ido this all. Dismount IPC, resolder all pin. Problem persist.

I check Pinpoint test AI (PINPOINT TEST AI : FAULTY COMMUNICATIONS BETWEEN THE MODULES - MM CAN BUS), and must to "LOCATE and RECTIFY the break in circuit VDB14F (VT/GY) between soldered connection SP353 and DLC with the aid of the the Wiring Diagrams. CHECK system operates correctly".

I do not know where is SP353 (and SP348), please if somebody know position of this SP I would be grateful.

#6 gjovano011

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Posted 17 October 2020 - 07:16 PM

Any idea?




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