2011 C4 Grand Picasso A/C sensors
Moderator: RichardW
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
2011 C4 Grand Picasso A/C sensors
Hi guys,
I really need some help and advice. My C4 Grand Picasso's A/C diagnostics says: 1. Driver's side blown air temperature : 658°C , 2.Passengers side blown air temperature: 658°C, 3 Carbon monoxide (CO) concentration/air quality sensor value : 6236, Concentration of nitrogen oxide: 6236... Do you know where these sensors are located? The only sensor I found inside the A/C big blower body is a temp sensor that works well as it shows the correct value (located driver's side down bottom). The weird point is that they call this sensor "Air quality sensor" which is strange as that sensor is just a simple thermo couple (simple temp sensor). I can't find any other sensors looking over diagrams? Any advice and information is highly appreciated. Thanks in advance.
I really need some help and advice. My C4 Grand Picasso's A/C diagnostics says: 1. Driver's side blown air temperature : 658°C , 2.Passengers side blown air temperature: 658°C, 3 Carbon monoxide (CO) concentration/air quality sensor value : 6236, Concentration of nitrogen oxide: 6236... Do you know where these sensors are located? The only sensor I found inside the A/C big blower body is a temp sensor that works well as it shows the correct value (located driver's side down bottom). The weird point is that they call this sensor "Air quality sensor" which is strange as that sensor is just a simple thermo couple (simple temp sensor). I can't find any other sensors looking over diagrams? Any advice and information is highly appreciated. Thanks in advance.
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
The temperature sensors on the first generation of Picassos are located in the air piping at feet level:
(111) The temperature sensor of the air entering the passenger compartment from the driver's side.
(112) Passenger air temperature sensor.
(111) The temperature sensor of the air entering the passenger compartment from the driver's side.
(112) Passenger air temperature sensor.
Please Don't PM Me For Technical Help
Marc
Marc
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
Thank you very much for your help! Will check them sensors and will get back here. Cheers.GiveMeABreak wrote: ↑07 Jul 2021, 00:03 The temperature sensors on the first generation of Picassos are located in the air piping at feet level:
(111) The temperature sensor of the air entering the passenger compartment from the driver's side.
(112) Passenger air temperature sensor.
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
Hello there,
I looked for the sensors but looks like my car doesn't have them on the places shown... I have looked exactly on these locations, but I have only a 90 degrees angle white plastic vents with no sensors on them... Probably my Picasso configuration is different? Cheers.
I looked for the sensors but looks like my car doesn't have them on the places shown... I have looked exactly on these locations, but I have only a 90 degrees angle white plastic vents with no sensors on them... Probably my Picasso configuration is different? Cheers.
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
Very possible as there are various options on these with various climate ‘zones’ , and additional heating / blower units for these. Best to pop your VIN up so I can see exactly which system and option you have.
Please Don't PM Me For Technical Help
Marc
Marc
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
Thank you very much for your time and attention! Here's the VIN: VF7**************[VIN obfuscated, can be read by forum staff]GiveMeABreak wrote: ↑09 Jul 2021, 08:16 Very possible as there are various options on these with various climate ‘zones’ , and additional heating / blower units for these. Best to pop your VIN up so I can see exactly which system and option you have.
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
I’ll have a look as soon as I can as I’m out at present.
Please Don't PM Me For Technical Help
Marc
Marc
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
Perhaps you can explain what the particular problem is with your vehicle to save some time?
Please Don't PM Me For Technical Help
Marc
Marc
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
When the A/C is on - it blows cold only when the fan is at max ( a/c compressors switches on only then). The fan works perfectly at any level position. The a/c is fully serviced (filled, filters, etc..) When diagnosed with Lexia/DiagBox says- driver's and passenger's blown air temperature - above 6K degrees, and the air quality above 6k...
When decrease the fan level with just one click - the A/C stops working - that's the problem. So I assume a sensors needs replacing, but can't find them. Thank you.
When decrease the fan level with just one click - the A/C stops working - that's the problem. So I assume a sensors needs replacing, but can't find them. Thank you.
Last edited by myglaren on 11 Jul 2021, 09:14, edited 1 time in total.
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
So to clarify:
The A/C only works when the fan is on full speed.
The fan works on any speed for hot or warm air or cool air, but not for cold air?
So you should have climate control. What happens when you leave the system on AUTO and set the temperature to say 14. Does the fan speed increase and the temperature change, or does the fan not work and secondly does the temperature start to decrease?
As above, but when you turn the temperature up to say 28, does the fan speed and temperature increase?
What is the outside temperature reading displayed on the multifunction display? The temperature inside the wing mirror affects the A/C system - if that is reading incorrectly it will impact on the system.
As you have Diagbox, have you run the Global Test and are there any fault codes returned?
The A/C only works when the fan is on full speed.
The fan works on any speed for hot or warm air or cool air, but not for cold air?
So you should have climate control. What happens when you leave the system on AUTO and set the temperature to say 14. Does the fan speed increase and the temperature change, or does the fan not work and secondly does the temperature start to decrease?
As above, but when you turn the temperature up to say 28, does the fan speed and temperature increase?
What is the outside temperature reading displayed on the multifunction display? The temperature inside the wing mirror affects the A/C system - if that is reading incorrectly it will impact on the system.
As you have Diagbox, have you run the Global Test and are there any fault codes returned?
Please Don't PM Me For Technical Help
Marc
Marc
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
I've just had another look and have you disconnected the battery recently? If so these are complex systems and it is stated:
"MANDATORY: After disconnecting the battery, move for 5 minutes in automatic mode with a set temperature of 21 ° C on the left / 21 ° C on the right to ensure normal system synchronization."
There's little I can do to help on the systems in these vehicles with the multiple configurations available, they are so complicated and the systems change from one model to the other with multiple versions according to number of cooling zones which makes it extra hard.
The systems also can take time to reinitialise (they even talk about parking it in a garage out of the sun for 5 hours to reset the memorised settings!)
I think you may be better off getting it to a dealer and let them work it out - they may know instantly what the issue is.
"MANDATORY: After disconnecting the battery, move for 5 minutes in automatic mode with a set temperature of 21 ° C on the left / 21 ° C on the right to ensure normal system synchronization."
There's little I can do to help on the systems in these vehicles with the multiple configurations available, they are so complicated and the systems change from one model to the other with multiple versions according to number of cooling zones which makes it extra hard.
The systems also can take time to reinitialise (they even talk about parking it in a garage out of the sun for 5 hours to reset the memorised settings!)
I think you may be better off getting it to a dealer and let them work it out - they may know instantly what the issue is.
Please Don't PM Me For Technical Help
Marc
Marc
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
The fan always works properly- it works when a/c is switched on, but A/C blows cold only when the fan is on full speed- if I decrease it the A/C stops to blow cold ( the A/C compressor stops). Tried with Auto mode- works with same behavior- depending on the fan speed- it blows cold or not- when set on low temp (14 deg) the fan is on max and blows cold once the internal temp is reached and the fan speed decreased automatically- cold air stops (otherwise as described above the fan is working perfectly on all speeds). The outside temperature is correct- both the display shown and the diagnosed readings. Everything is ok except the reading of the driver's and passenger's blown air temp- if the readings are out of range the cold air will come only on min. temp (14) and max fan speed which is absolutely logical for me. The important is why I can't locate them sensors, are they exists on my Picasso system. Thank youGiveMeABreak wrote: ↑11 Jul 2021, 09:55 So to clarify:
The A/C only works when the fan is on full speed.
The fan works on any speed for hot or warm air or cool air, but not for cold air?
So you should have climate control. What happens when you leave the system on AUTO and set the temperature to say 14. Does the fan speed increase and the temperature change, or does the fan not work and secondly does the temperature start to decrease?
As above, but when you turn the temperature up to say 28, does the fan speed and temperature increase?
What is the outside temperature reading displayed on the multifunction display? The temperature inside the wing mirror affects the A/C system - if that is reading incorrectly it will impact on the system.
As you have Diagbox, have you run the Global Test and are there any fault codes returned?
-
- Posts: 11
- Joined: 06 Jun 2020, 17:47
- Location: Somerset
- My Cars: 2011 C4 Grand Picasso 1.6 hdi
Re: 2011 C4 Grand Picasso A/C sensors
Hello,
Is it can you check my VIN number when its possible please? Thank you.
- GiveMeABreak
- Forum Admin Team
- Posts: 37005
- 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 5646
Re: 2011 C4 Grand Picasso A/C sensors
Unfortunately it doesn't help me determine whether you have the same sensors as the other member's system.
AIR CONDITIONING: WITH AUTO RECIRCULATION HEATER MATRIX
ADDITIONAL HEATING: AUTOMATIC ADDITIONAL HEATING
ADDITIONAL AIR CONDITIONING: WITHOUT ADDITIONAL AIR CONDITIONING
REFRIGERATION: AUTOMATIC AIR CONDITIONING
SUPPLEMENTARY HEATER: WITHOUT ADDITIONAL HEATING
AIR CONDITIONING: WITH AUTO RECIRCULATION HEATER MATRIX
ADDITIONAL HEATING: AUTOMATIC ADDITIONAL HEATING
ADDITIONAL AIR CONDITIONING: WITHOUT ADDITIONAL AIR CONDITIONING
REFRIGERATION: AUTOMATIC AIR CONDITIONING
SUPPLEMENTARY HEATER: WITHOUT ADDITIONAL HEATING
Please Don't PM Me For Technical Help
Marc
Marc
-
- New User
- Posts: 1
- Joined: 02 Jun 2023, 10:25
- Location: Czech Republic
- My Cars: Citroen C4 Grand Picasso
Re: 2011 C4 Grand Picasso A/C sensors
Hi,
have you been able to solve the problem?
It seems my C4 Grand Picasso has exactly the same problem - it starts cooling only at lowest temp set (14°) and full fan speed (or "auto", which drives the fan again to the max).
I would really welcome a short feedback. Thanks!
have you been able to solve the problem?
It seems my C4 Grand Picasso has exactly the same problem - it starts cooling only at lowest temp set (14°) and full fan speed (or "auto", which drives the fan again to the max).
I would really welcome a short feedback. Thanks!