Citroen C3 1.4 Fault Code P0598 What is the Cause?
Moderator: RichardW
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Citroen C3 1.4 Fault Code P0598 What is the Cause?
Pretty much as per the title, my daughter's C3 1.4, 2006 41,000 miles has developed the above fault code in combination with prior/rough running when cold as in hesitation/poor performance etc. The above code relates to "Controlled Thermostat Signal short circuit to earth or open circuit" so I replaced the coolant sensor (only one temperature sensor on this car) yet the fault remains.
Using Lexia datastream readings show coolant temperature and air temperature as you'd expect them to read, cooling fan works OK when actuated via Lexia so I've run into a brick wall so to speak especially as I can't get a specific wiring diagram relating to this car. I bought a Haynes manual (bloody paperback now ) but the diagram in there shows an additional sensor which isn't fitted to this car. I've had a good look around Citroen Service using the subscription service but can't find a wiring diagram there either and as there appears to be something like 100 wires going into the the three plugs on the ECU pinning out is a complete lottery ATM. The fault wasn't there previously so something would appear to have gone wrong but what exactly is proving a mystery. I've spent several days Googling but drawn up a blank after making good use of their translation service Any ideas?
Using Lexia datastream readings show coolant temperature and air temperature as you'd expect them to read, cooling fan works OK when actuated via Lexia so I've run into a brick wall so to speak especially as I can't get a specific wiring diagram relating to this car. I bought a Haynes manual (bloody paperback now ) but the diagram in there shows an additional sensor which isn't fitted to this car. I've had a good look around Citroen Service using the subscription service but can't find a wiring diagram there either and as there appears to be something like 100 wires going into the the three plugs on the ECU pinning out is a complete lottery ATM. The fault wasn't there previously so something would appear to have gone wrong but what exactly is proving a mystery. I've spent several days Googling but drawn up a blank after making good use of their translation service Any ideas?
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
- GiveMeABreak
- Forum Admin Team
- Posts: 37300
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5711
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Post up your VIN Dickie, I can probably help with wiring diags for you.
Please Don't PM Me For Technical Help
Marc
Marc
- myglaren
- Forum Admin Team
- Posts: 25454
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4917
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Nice to see you posting again Mr G. Shame about the circumstances
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Thanks Marc, VF7**************[VIN obfuscated, can be read by forum staff]GiveMeABreak wrote:Post up your VIN Dickie, I can probably help with wiring diags for you.
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
- GiveMeABreak
- Forum Admin Team
- Posts: 37300
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5711
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
In the interim whilst I'm digging these out, have a squiz at this on C3 owners:
https://citroenc3owners.com/petrol-citr ... t1871.html
https://citroenc3owners.com/petrol-citr ... t1871.html
Please Don't PM Me For Technical Help
Marc
Marc
-
- Forum Treasurer
- Posts: 10865
- Joined: 07 Aug 2002, 17:12
- Location: United Kingdom
- My Cars: MK2 '17 C4GP 1.6 BlueHDi 120
'13 3008 1.6 HDi GripControl - x 994
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Welcome back!
These have an electric thermostat, which I'm sure has come up before as giving problems. Could be worth sticking a new one in, to see if it fixes things. Little bit pricey from Citroen....
Part Number Description Quantity Price excl. VAT Price incl. VAT Total incl. VAT Selection
00001336Z2 THERMO FITTING 48.44 GBP 58.13 GBP 58.13 GBP
These have an electric thermostat, which I'm sure has come up before as giving problems. Could be worth sticking a new one in, to see if it fixes things. Little bit pricey from Citroen....
Part Number Description Quantity Price excl. VAT Price incl. VAT Total incl. VAT Selection
00001336Z2 THERMO FITTING 48.44 GBP 58.13 GBP 58.13 GBP
Richard W
- GiveMeABreak
- Forum Admin Team
- Posts: 37300
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5711
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Dickie - I've emailed you the diagrams (sent one with SVGA files by mistake , then another with the PDFs)!
Here's the part Richard is referring to: Part 6
Here's the part Richard is referring to: Part 6
Please Don't PM Me For Technical Help
Marc
Marc
- demag
- (Donor 2016)
- Posts: 1441
- Joined: 18 Oct 2004, 05:03
- Location: Black Country, aye it ar kid.
- My Cars: "H" Citroen Bx Tgs Automatic.
2006 Toyota Prius T4 Gen 2. - x 102
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
I'm sure these manufacturers have secret development departments. "Rene, how can we screw the motorists with this vehicle?"
"Yes Claude, how about an electric thermostat?"
"We can give it a limited lifespan and charge an extortionate price for replacements."
"Excellent idea Rene."
Sent from my Wileyfox Swift using Tapatalk
"Yes Claude, how about an electric thermostat?"
"We can give it a limited lifespan and charge an extortionate price for replacements."
"Excellent idea Rene."
Sent from my Wileyfox Swift using Tapatalk
Dave
2011 Peugeot 3008 1.6hdi Exclusive EGS.
'04 C5 auto estate 2.2 hdi. Gone.
Bx 1.6 TGS Auto 50k A rare beast by all accounts. A bit tired but getting better by the day. Gone.
'96 XM 2.5TD VSX.......Sadly sold. What an idiot! I should have held on to that.
2011 Peugeot 3008 1.6hdi Exclusive EGS.
'04 C5 auto estate 2.2 hdi. Gone.
Bx 1.6 TGS Auto 50k A rare beast by all accounts. A bit tired but getting better by the day. Gone.
'96 XM 2.5TD VSX.......Sadly sold. What an idiot! I should have held on to that.
- GiveMeABreak
- Forum Admin Team
- Posts: 37300
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5711
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Love it - so true!
This is the third variation on a C3 today I've dealt with and just to top it all - the diagram supposedly for another member's VIN was not the same as the Water Coolant housing and Thermostat on the vehicle!
This is the third variation on a C3 today I've dealt with and just to top it all - the diagram supposedly for another member's VIN was not the same as the Water Coolant housing and Thermostat on the vehicle!
Please Don't PM Me For Technical Help
Marc
Marc
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Thanks for the help chaps, electric thermostat, what on earth is the point of that on a 1.4 C3? I could understand it on a performance car, I'm lost for words! Anyway the car is currently with my daughter who is due back later this week, after which I'll report back with my latest findings, many thanks.
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
I had the opportunity to have a quick look at the car last night and yes as mentioned it does have the additional sensor on the thermostat housing located on the underside. Having never heard of such a thing I didn't notice it there, especially with the connection loom being hidden by the top hose, anyway I picked up a new one from my dealer yesterday and intend to fit it at some point this weekend, will report back once done.
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
-
- Donor 2023
- Posts: 13743
- Joined: 01 Apr 2012, 09:47
- Location: Reading
- My Cars: C5 Mk2 VTX+ estate.
- x 3006
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Fingers crossed.
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Update on this issue, I fitted the new thermostat yesterday and then did a diagnostic session, whereas previously the fault was shown as permanent and wouldn't clear, with the new thermostat fitted the fault now showed as temporary then allowed me to clear it completely so hopefully it's now sorted.
I'll get the Dremel out at some point and section the housing to show how this sensor/electric thermostat works.
A big thank you to Marc and Richard for their help
I'll get the Dremel out at some point and section the housing to show how this sensor/electric thermostat works.
A big thank you to Marc and Richard for their help
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
- DHallworth
- Donor 2023
- Posts: 2387
- Joined: 20 Nov 2005, 17:05
- Location: Glasgow
- My Cars:
- x 125
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Great news you got it sorted.
Just for reference, if you pay for access to service.citroen.com, type the fault code into the search box on the top right and it'll give you a list of common causes for that code and what to check
I only found out when messing around when quiet at work one day. Quite interesting
David.
Just for reference, if you pay for access to service.citroen.com, type the fault code into the search box on the top right and it'll give you a list of common causes for that code and what to check
I only found out when messing around when quiet at work one day. Quite interesting
David.
'98 Xantia Activa V6
'00 XM V6 Exclusive
'09 C5 2.7 HDi Exclusive
‘10 C5 3.0 HDi Exclusive
'12 C6 3.0 HDi Exclusive
'15 C4 BlueHDi Feel
'00 XM V6 Exclusive
'09 C5 2.7 HDi Exclusive
‘10 C5 3.0 HDi Exclusive
'12 C6 3.0 HDi Exclusive
'15 C4 BlueHDi Feel
- DickieG
- Monaco's youngest playboy
- Posts: 4877
- Joined: 25 Nov 2006, 09:15
- Location: Buckinghamshire
- My Cars:
- x 38
Re: Citroen C3 1.4 Fault Code P0598 What is the Cause?
Nice one David, I wasn't aware of that.DHallworth wrote:Just for reference, if you pay for access to service.citroen.com, type the fault code into the search box on the top right and it'll give you a list of common causes for that code and what to check
I only found out when messing around when quiet at work one day. Quite interesting
David.
13 Ram 1500 Hemi
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH
14 BMW 535D Tourer
19 BMW i3s
06 C3 Desire 1.4
72 DS 21 EFi Pallas BVH