S1 33 Check Control question

[keith_h]

The Check Control coolant level sensor erroneously indicates the coolant level is low. Two possibilities exist, either the sensor has failed or the check control unit has failed. My money is on the sensor.

Can anyone advise on a testing technique or a way to bypass the signal or if this is a common problem and the solution. If the sensor is disconnected, the light stays on. If the connection is shorted the light also stays on. The wiring diagram indicates the sensor is just a switch directing an earth to the Check Control itself.

Appreciate any advice.

[keith_h]

Solved. Swapped the washer bottle sensor (and broke it in the process) which caused the coolant circuit to work and concluded the sensor (really a switch) was faulty. Shorted out each and no more red indicator lights.

[alfa-arna]

I have the big light on and the coolant is on its been change for one without the sensor you havnt got a spare? ciao daz

[Serpent33]

You mean every other of your alfa control light actually works!?!?

[alfa-arna]

Yip even tells me what mileage per gallon iam getting but icant put the wipers and the headlights on at the same time ciao daz