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ESP/ASR system, ABS braking system, parking brake, tyre under inflation faults |
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Tronic
 
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  Member No: #54354
Joined: Aug 05 2019Location: Larne |
Hi all. Driven my 2013 C4 GS for over 2 years now with no bother, it has over 90K on her. Last week a load of messages popped up all at the same time. ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed Cruise condo will not work Sat nav froze at the point this all came on. These seam to clear itself but can take with a few miles or a few trips. They all kept popping up on various trips and have seemed more common / always pop up during a “hard left” turn (tight 30mph turn making the car tilt slightly). I’m thinking speed sensor but am I right. Any ideas please! Aaron |
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rusky
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   Member No: #27768
Joined: Oct 13 2012Location: Hove |
Possibly an ABS sensor but you need to get the fault codes read. | ||||
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Tronic
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Member No: #54354
Joined: Aug 05 2019Location: Larne |
Would that cause the sat nav fault too? Thanks. |
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Citroguy
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Member No: #56602
Joined: Jul 30 2020Location: Leeds |
Forgive me if this post is in too much detail as some will know how to do what I’m explaining already and some may need more info. So I had the exact same faults as this one on my 2015 gc4p, ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed Cruise control will not work Sat nav frozen. at first it was intermittent, and would reset after I switched off and restarted the car. After a couple of months it then showed these faults all the time Then COVID hit and I just dealt with it annoying me all the time. Once I could get it booked in for its service the garage hooked it up for me and told me it was showing a fault on the rear offside ABS sensor which they then tested and showed 0v. I done a bit more research and found something on the auto handbrake unit which the guy showed you where the cable had broken (different circuit, but I thought maybe the same area) so I stripped the back wheel off and proceeded to check the voltage (pin 1 is 11v supply) on the ABS connector - sure enough 0v, I then removed the clips on the plastic conduit leading from the rear wheel to just before the fuel tank. Then pulled the conduit off and checked the cables, the twisted pair is for the ABS sensor, the yellow in the twisted pair should show 11v dc when the car is on (press the start button without pressing the brake pedal and leave on while testing) there is another yellow cable which is for the auto brake unit - this is NOT twisted and you don’t need to touch that one. Once you have the twisted pair showing, check along the twisted yellow cable for any green spots (Copper oxidisation), it may not look overly obvious, but if it’s there you should see it. If you find it you will know by pulling on that little bit - mine just separated once the rest of the insulation broke. Once found strip a little of the insulation back on the cable coming from the front of the car and test, if you have 11v then you know the rest of the cable is ok then you can strip and connect using a shrink connector or personally I just twisted the cable the correct way and soldered and used heat shrink to cover the joint and then tested the connector - 11v was there. I recovered the cable with the conduit and connected everything back together etc using electrical tape where the fabric material had been, (I'll keep checking this and get something longer lasting if needed). Tested the car and all faults are gone. Happy days! 😀 |
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Noworries2004
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 Member No: #49875
Joined: Nov 15 2017Location: ireland |
I have a very similar problem on 2014 Grand picasso Exclusive plus. ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed All alarms come on when engine is started. Codes displayed on OBD scanner = P1445 additive adding U1213 Intersystems CAN. Anyone have any idea where i start? Do i get my voltmeter and start checking the ABS sensors? If so where are they located? |
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Ap0qalypto
 
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 Member No: #52161
Joined: Sep 21 2018Location: Republic of Serbia |
Are your brake lights working when u press brake pedal? | ||||
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Noworries2004
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Member No: #49875
Joined: Nov 15 2017Location: ireland |
Yes Brake lights working when pedal is pressed. Error description U1213 Intersystems CAN One of the parameters present in a datastream sent by the ABS/ ESP is invalid. Maybe once every 6 months the errors dont occur but that doesnt last long before they are back again. |
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Noworries2004
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Member No: #49875
Joined: Nov 15 2017Location: ireland |
Plugged it in again with a better OBD and got the following errors: C0037 + C003A pointing to left and right ABS sensors on the rear. Does anyone know where i can get a wiring diagram for a 142 C4 Grand picasso exclusive + ? Looks like there is a problem with wiring from ECU to rear ABS sensors. |
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Edddie
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Member No: #53156
Joined: Feb 20 2019Location: Newcastle upon Tyne |
Hi all, new to the group. My c4 has developed the same abs problem that tronic had. The fault code indicates that the right rear speed sensor is at fault. I changed the sensor but the fault is still there. I am thinking that the abs sensor wiring is at fault. Can anyone tell me where the sensor wires terminate? Is it possible to get a wiring diagram. Many thanks Ed |
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svickery
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Member No: #57695
Joined: Feb 15 2021Location: Plymouth, UK |
Hi, My 2014 C4 is having the same problem I had problems a few months back with the car not recognising the drivers doors was open, this in turn was stopping the car locking, I was also getting the following faults, ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed it went to the garage and they found some broken wires in the door, which they repaired the car then came back and seemed fine, a few months later it started developing the faults again, but very randomly, I thought I had traced it to the OSF ABS sensor, as if you fiddled with the wire to this one the fault would clear after stopping and restarting. The sensor was changed and again it was ok for a month, it has now developed the faults again, but only when it is wet on the roads, today I left home and there was no faults, after driving 30 miles I hit some wet roads and shortly after that the faults appeared, give the car a few hours to dry out and they will disappear. It may also be worth mentioning that when the car went for MOT at the end of last year, they changed the rear brake pads, and had real problems resetting the auto handbrake(it would not automatically go on when the engine was stopped, however they managed to get it working). I would appreciate any guidance/pointers as where to go from here. Thanks in advance Steve |
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Wutang
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 Member No: #46858
Joined: Nov 24 2016Location: London |
Tronic wrote ... Hi all. Driven my 2013 C4 GS for over 2 years now with no bother, it has over 90K on her. Last week a load of messages popped up all at the same time. ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed Cruise condo will not work Sat nav froze at the point this all came on. These seam to clear itself but can take with a few miles or a few trips. They all kept popping up on various trips and have seemed more common / always pop up during a “hard left” turn (tight 30mph turn making the car tilt slightly). I’m thinking speed sensor but am I right. Any ideas please! Aaron I had all these faults on mine and as others have said it was the wireing to the rear abs sensors at fault. yes it will knock out the satnav at the same time. get this checked first as the wireing is check last by main dealer unless you state you want it checked first. Richard |
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Rob72
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Member No: #58614
Joined: Aug 11 2021Location: Morayshire |
Evening all, Seems to be a popular thread here with multiple replies, so unsure if there is a definitive solution but any assistance would be greatly appreciated please. 2015 C4 Grand Picasso A couple of weeks ago the following warning lights appeared. ABS/ESR Tyre Inflation Anti Roll Back Parking Brake Service Light In addition to this Cruise Control/Speed Limiter fail to engage. Had the car looked at & the OBD reader threw up a RH rear ABS sensor......easy win. Unfortunately the faults remained after the sensor change. Next port of call was a wiring fault. Currently booked into a local garage ( non Citroen) who lets just say are not filling me with confidence. Considering taking it to a main dealer but to reduce costs would like to direct them to the root cause from the outset. Any help would be appreciated. Cheers Rob |
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Darragh
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Member No: #58629
Joined: Aug 15 2021Location: Ireland |
Citroguy wrote ... Forgive me if this post is in too much detail as some will know how to do what I’m explaining already and some may need more info. So I had the exact same faults as this one on my 2015 gc4p, ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed Cruise control will not work Sat nav frozen. at first it was intermittent, and would reset after I switched off and restarted the car. After a couple of months it then showed these faults all the time Then COVID hit and I just dealt with it annoying me all the time. Once I could get it booked in for its service the garage hooked it up for me and told me it was showing a fault on the rear offside ABS sensor which they then tested and showed 0v. I done a bit more research and found something on the auto handbrake unit which the guy showed you where the cable had broken (different circuit, but I thought maybe the same area) so I stripped the back wheel off and proceeded to check the voltage (pin 1 is 11v supply) on the ABS connector - sure enough 0v, I then removed the clips on the plastic conduit leading from the rear wheel to just before the fuel tank. Then pulled the conduit off and checked the cables, the twisted pair is for the ABS sensor, the yellow in the twisted pair should show 11v dc when the car is on (press the start button without pressing the brake pedal and leave on while testing) there is another yellow cable which is for the auto brake unit - this is NOT twisted and you don’t need to touch that one. Once you have the twisted pair showing, check along the twisted yellow cable for any green spots (Copper oxidisation), it may not look overly obvious, but if it’s there you should see it. If you find it you will know by pulling on that little bit - mine just separated once the rest of the insulation broke. Once found strip a little of the insulation back on the cable coming from the front of the car and test, if you have 11v then you know the rest of the cable is ok then you can strip and connect using a shrink connector or personally I just twisted the cable the correct way and soldered and used heat shrink to cover the joint and then tested the connector - 11v was there. I recovered the cable with the conduit and connected everything back together etc using electrical tape where the fabric material had been, (I'll keep checking this and get something longer lasting if needed). Tested the car and all faults are gone. Happy days! 😀 Excellent advice. Found the exact problem from your Excellent description, these alarms have been driving me mad for months. Thanks for the guidance. I owe you a pint!! |
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Lawty999
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Member No: #54498
Joined: Aug 27 2019Location: Salford |
Rob72 wrote ... Evening all, Seems to be a popular thread here with multiple replies, so unsure if there is a definitive solution but any assistance would be greatly appreciated please. 2015 C4 Grand Picasso A couple of weeks ago the following warning lights appeared. ABS/ESR Tyre Inflation Anti Roll Back Parking Brake Service Light In addition to this Cruise Control/Speed Limiter fail to engage. Had the car looked at & the OBD reader threw up a RH rear ABS sensor......easy win. Unfortunately the faults remained after the sensor change. Next port of call was a wiring fault. Currently booked into a local garage ( non Citroen) who lets just say are not filling me with confidence. Considering taking it to a main dealer but to reduce costs would like to direct them to the root cause from the outset. Any help would be appreciated. Cheers Rob |
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Kyser143
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Member No: #51523
Joined: Jun 30 2018Location: Bradfodd |
Darragh wrote ... Citroguy wrote ... Forgive me if this post is in too much detail as some will know how to do what I’m explaining already and some may need more info. So I had the exact same faults as this one on my 2015 gc4p, ESP/ASR system ABS braking system parking brake tyre under inflation fault Anti roll back failed Cruise control will not work Sat nav frozen. at first it was intermittent, and would reset after I switched off and restarted the car. After a couple of months it then showed these faults all the time Then COVID hit and I just dealt with it annoying me all the time. Once I could get it booked in for its service the garage hooked it up for me and told me it was showing a fault on the rear offside ABS sensor which they then tested and showed 0v. I done a bit more research and found something on the auto handbrake unit which the guy showed you where the cable had broken (different circuit, but I thought maybe the same area) so I stripped the back wheel off and proceeded to check the voltage (pin 1 is 11v supply) on the ABS connector - sure enough 0v, I then removed the clips on the plastic conduit leading from the rear wheel to just before the fuel tank. Then pulled the conduit off and checked the cables, the twisted pair is for the ABS sensor, the yellow in the twisted pair should show 11v dc when the car is on (press the start button without pressing the brake pedal and leave on while testing) there is another yellow cable which is for the auto brake unit - this is NOT twisted and you don’t need to touch that one. Once you have the twisted pair showing, check along the twisted yellow cable for any green spots (Copper oxidisation), it may not look overly obvious, but if it’s there you should see it. If you find it you will know by pulling on that little bit - mine just separated once the rest of the insulation broke. Once found strip a little of the insulation back on the cable coming from the front of the car and test, if you have 11v then you know the rest of the cable is ok then you can strip and connect using a shrink connector or personally I just twisted the cable the correct way and soldered and used heat shrink to cover the joint and then tested the connector - 11v was there. I recovered the cable with the conduit and connected everything back together etc using electrical tape where the fabric material had been, (I'll keep checking this and get something longer lasting if needed). Tested the car and all faults are gone. Happy days! 😀 Excellent advice. Found the exact problem from your Excellent description, these alarms have been driving me mad for months. Thanks for the guidance. I owe you a pint!! Hi wonder if you or anyone managed to resolve this. I have a 2015 C4GP and exact same errors you mention ..in turn they all come on. Had a auto electrician check another issue and he confirmed this one was pointing to the Rear LH abs sensor...wondering of replacing that will fix or abs rings mentioned in another thread. Any help what fixed yours would be appreciated. |
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