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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Brake Pressure SensorsViews : 13301 Replies : 56Users Viewing This Thread : |
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Jan 28th, 2016, 10:16 | #21 |
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Brilliant intel on this area people - thanks!
So my code disappeared really suddenly on the very next journey which I thought was odd. The guys who scanned the codes told me it was the sensors and then quoted me around £700 to have it fixed. But since then Ive done nothing and the codes have NOT reappeared. So Im inclined to put it down to a glitch (maybe a slight voltage drop or something?) and wait to see if the warning message comes back. The thing nagging at the back of my mind is that the mechanic gave me war and peace about how lots of things will be disabled if the pressure sensors have failed such as 4 wheel drive, abs, bending xenons, cd player etc..... Cheers! |
Jan 28th, 2016, 11:26 | #22 | |
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Quote:
However, when the ABS rings were knackered, there were def other faults
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Aug 12th, 2019, 13:23 | #23 | |
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Does any one knows how to calibrate the pressure sensors using Vida please. I've cleaned the ABS pump connectors mo ths ago but abs warning light comes on intermenatly. Checked it with Sensor 2 low signal and pressure sensors 1 and 2 outside permitted range. Thank you.
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Aug 12th, 2019, 17:59 | #24 |
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what's the pressure difference between both sensors max is one bar when the pedal is not pressed .When pressed hard they should read the same ish within couple of bar.
to reset them in vida is the next screen after the test sensor screen .
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Aug 12th, 2019, 18:29 | #25 | |
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[IMG][/IMG]
Quote:
Iam not expertise in Vida. I use it clear codes and fi finding fault. Could you please kindly let me know how to check it using Vida. Below is the code I took out this morning but cleared it straight away. I think it wil come back again soon, it is an on going issue. Thank you.
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Aug 13th, 2019, 23:46 | #26 |
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Quote:
Hope you find it ok when I did mine 1 & 2 were giving strange reading so had to replace one.
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Aug 16th, 2019, 13:28 | #27 | |
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Quote:
Mine showing 10 and 1 bar. Could that low reading be only sensor fault or do I have leakage some where, which affects the pressure. How to identify which one is sensor 1 and 2 please. Thank you.[IMG][/IMG]
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Aug 16th, 2019, 16:49 | #28 |
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pesky sensors
The 1 bar reading is minus, so makes me think perhaps the sensor is disconnected or completely open circuit perhaps ?, have you tried cleaning the terminals up, also use a dvm to simply measure the voltage across each sensor, should be very similar, also with the brake pedal pressed..
if you want to confirm which sensor is showing the low reading just disconnect one and see which shows a different reading...if your using vida. |
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Aug 16th, 2019, 17:34 | #29 | |
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I will clean the terminals with contact cleaner when I get home. I have multimeter, I will check the voltage. Biut Sorry to ask a dumb question .Do I have to check the voltage when the engine running or in key position 2. Also with brake pedals pressed at the same time. Thank you.
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Aug 16th, 2019, 17:53 | #30 |
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ideas and questions
Try some fine wet & dry (its a grey coloured 'sandpaper'), but also use some folded into a spade shape to clean inside the push on connector (dont go too mad and remove the plating from either side).
You can measure the voltage with key in pos 2, to check if you measure any voltage, but to see a full pressure (and full voltage) reading have the engine running and get so someone to press the brake pedal, compare readings on both with (pedal released & pedal pressed) to see what signal the bcm is seeing. no worries no question is stupid, as you always learn something asking questions |
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