#1: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: fribby, Posted: Fri Apr 01, 2016 6:10 am ---- Hi Folks,
Just joined up here, recently bought my daughter a nice little 206 for her first car. Unfortunately it has developed the overheating / temp gauge jumping issue.
Up to now, I have fitted a new Radiator (the old one was almost shot anyway), new Thermostat, flushed the whole system. New Temp sensor, new Radiator Fan Switch, and a new cooling fan as the old one had seized.
The engine is now cooling fine, but when sat idling the fan isn't coming on and it throws up the Temp Gauge fault.
Looked all over online, it seems a common issue and the likely suspects are the low speed relay and/or the fan resistor. However, I just canot find them on the Car! I've check loads of photos online and wiring diagrams but none seem to match the vehicle. There are no relays on or near the fan housing, the cabling just goes back to the under bonnet fuse box!
The fan does start on full speed when I link out the Rad Fan switch, so I know it is at least getting power.
Any suggestions on where to look or any ideas would be much appreciated.
Cheers, fribby
#2: Re: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: FrankAteMyName, Location: TewkesburyPosted: Fri Apr 01, 2016 6:27 am ---- Hello and Welcome!
First off it would be useful if you could supply details of the car:
Year, engine, mileage, pre or MUX, A/C or no
As for the location; you have to remove the front bumper to get to them really. they are attached to the fan panel behind a cover.
#3: Re: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: Edward, Location: In the garagePosted: Fri Apr 01, 2016 11:18 am ---- Don't these have two coolant sensors as well? Radiator fan switch? What's that? The ECU is the switch.
#4: Re: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: fribby, Posted: Sat Apr 02, 2016 10:42 am ---- Hi Fellas,
As it is a '98 plate I believe it is pre-mux and it is the non AC model, with about 50K miles on the clock. I've had all the front stripped off and there is nothing there at all, just a fan and it's connector...
Edward, yes this does have two sensors, the one in the Thermostat manifold which is an RTD temp sensor and one in the radiator which is a switch.
From tracing it out it looks like the fan only has one speed and that is controlled by this Rad switch, according to the datasheet I finally managed to find for it this should activate at 92-97degC. As yet I've been unable to get it to come on despite the temp gauge jumping up into the red (from 90 to red in a flash)...
#5: Re: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: mtempsch, Location: Gothenburg, SwedenPosted: Sat Apr 02, 2016 1:33 pm ----
fribby wrote:
From tracing it out it looks like the fan only has one speed and that is controlled by this Rad switch, according to the datasheet I finally managed to find for it this should activate at 92-97degC. As yet I've been unable to get it to come on despite the temp gauge jumping up into the red (from 90 to red in a flash)...
A '98 would deffo be pre-plex. Looks like the diagram agrees with you. Fused 12V continuously to the fan motor, negative lead through the switch to ground.
If it runs when you bridge the switch - then the switch, new or not, is suspect. Could test it by pulling it and putting it in boiling water and see if it closes (multimeter/test light)
#6: Re: 206 1.4 LX '98 plate Rad Fan / Temp issue... Author: fribby, Posted: Sun Apr 03, 2016 11:02 am ---- Thanks for that, the fan does start when shorted, taken the switch out and placed in boiling water and it isn't switching. Went and bought a second switch and that isn't switching either! Either 2 dodgy switches or I'm not getting enough heat into it...
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