@MontyChambers did you do the Nanocom check (not while driving) on the two inputs ? No point in replacing the switch unless you're sure it's broke !!

The RAVE procedure had a missing bit between 7 & 8. It should be:

7. Extend switch plunger fully.
7a. Hold brake pedal down.
8. Fit switch & then release brake pedal.

That way the pedal sets the plunger correctly when you release the pedal.

1747757110705.png
 
@MontyChambers did you do the Nanocom check (not while driving) on the two inputs ? No point in replacing the switch unless you're sure it's broke !!

The RAVE procedure had a missing bit between 7 & 8. It should be:

7. Extend switch plunger fully.
7a. Hold brake pedal down.
8. Fit switch & then release brake pedal.

That way the pedal sets the plunger correctly when you release the pedal.

View attachment 341450
Ah good, you have corrected me.
 
When I remove the switch the Nanocom reads sw 1 closed sw 2 open. When depressing the plunger I can feel it switching halfway and again fully depressed.
When I reattach the switch the reading is both closed when depressed,
Very helpful, tomorrow mornings job, by the way nanocom is running as it should, Hope for clear sky's tomorrow, metaphorically as well as weather-wise!
the brake switch was toast, felt like it was full off grit!
Replacement ordered.
 
I fitted the new brake switch as per RAVE
Readings are:
Close/Close
Close/Open
Open/Open
I must be missing something here?
ABS/TC dash lights still on.
Did I fit the bulb correctly🤔
The dash lights only came on after I fitted new ABS sensors, brake calipers, ball joints, dust shields, and track rod to the front wheels.
The MOT has become a distant dream over mountains of cash!
 
Check again with Nanocom, but wait a second or two for both to register. Not sure which is sw-1 & sw-2 from RAVE diagram.

Pedal released - Pin 3 open & pin-2 closed.
Pedal pressed - Pin-3 closed & pin-2 open.

There might be a mid point in the switch travel where you get open-open or closed-closed, but only if the switch is not correctly set.

1747920727790.png
 

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