C4 grande picasso electrical faults abs esp service light handbreak fault all on

[Colls10]

Help.
To avoid main dealer I have now visited 3 garages to try solve issue. Warning lights showing esp/asr fault auto handbreak not working and abs failure. To date they have changed the o/s r sensor twice , first non main dealer and now main dealer. Have checked fuses , all codes checked and kicked out loads but they managed to clear all but the abs and esp faults. Battery seems fine . Slowly running out of ideas. Would have probably been cheaper to go main dealer as to date it’s cost around £450 and no further forwards . Apparently there is continuity running from cradle with O/s/r sensor . Can starts fine , runs fine , just no abs or auto handbreak and these fault lights all on as soon as ignition is turned . Car only done 39k on a 2012 plate . Please any suggestions or ideas would really really help

[Dunker]

Its about old enough for wiring to rot somewhere. Either that or a module thats shitting itself. My moneys on water in wiring etc. You need proper diagnistic man not just a scan jockey. Under bonnet fuseboxes are top quality as well (and ABS pumps). They do say you will only ever buy one C4...

Only Iveco rear wheel speed sensors going faulty cause millions of CAN errors BTW...

[peumis]

Hello !

you have a wiring problem between abs wheel sensor and ecu. most cases 10 cm of sensor. just repair the wiring and all faults will be gone.

best regards Tom

[radiosolutions]

Check wiring at rear of battery. The 3 little fuses on top of battery ,wiring corrodes and one is for abs

dont forget to press thanks

[Meat-Head]

The 3 little fuses on top of battery ,wiring corrodes and one is for abs

Just for refernce where about does it corrode?

ON TOPIC:-

can your scan jockey up load tge codes, then clear sbd re upload?

[shadow12]

Wiring corrodes behind battery, where wires attach to fuses, sometimes up to 6-9 inches from fuses on top of battery

[MJRVR]

Check wiring under passenger seat also.

[wbart]

Any engine faulty code?

Wysłane z mojego SM-G390F przy użyciu Tapatalka

[windy1603]

Also check N/S sensor some diagnostics swap sensors in fault codes