Peugeot 406 (1999 - 2004) - 02 2.0HDi loss of display and electrics

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Sun 18 May 2008 19:45
02 2.0HDi loss of display and electrics - alhj
My 02 2.0 HDi Rapier 90 has a problem while driving along the whole dash goes blank no aelectrics working, that is no indicators, wipers, radio, electric windows etc no display. The engine keeps running and i can keep driving but when I stop you cannot start, engine cranks but due to no dash display of any kind it will not start.

I disconnect battery and reconnect then all display comes back but then a little while later it loses everything again. Any pointers on the cause.

Edited by Dynamic Dave on 18/05/2008 at 20:31

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Fri 23 May 2008 21:27
02 2.0HDi loss of display and electrics - iain90
Hi,

this may be worth a look, but really I just wanted to let folk know about a potentially serious wiring problem. My parents 2000 110 HDi albeit with 233k on the clock, died while in a garage for routine repairs that took a while to turn round - long story short, found that the wiring loom that runs from the ECU across the front of the engine to the 2 large circular connections below the battery has severe chafing due to too many wires for the size of conduit used. It wears away the insulation exposing the copper to the elements (especially if some dumb garage has said "belly pan - you don't need one of them... and hasn't replaced it) which then rots the wires away and black wire rot then proceeds up your wiring. To get the car running I had to splice in 13 new wires. It was amazing that the car ran up to the point it did, I guess the wait at the garage was when the fresh dousing of salt water finished it off.

to prevent this I would remove the protective conduit and then use insulating tape with either self amalgamating tape or bigger conduit as an outer sheath, making sure that the loom is still securely clipped so it doesn't have excessive movement. If any insulation has broken through then cut out the bad section and use adhesive lined heatshrink splices and splice in a new wire - to as far away either end as you can / to fresh copper as wire rot will have started to creep up from the break

As a note the 406 Hdi is OBDII compliant and an elm 327 off ebay with scantool 1.13 freeware ran fine under vista to get basic data.
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