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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Volvo 760 absViews : 330 Replies : 5Users Viewing This Thread : |
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Jul 28th, 2019, 13:34 | #1 |
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Volvo 760 abs
My car failed mot this week due to there being no abs light when starting the car as well as this after the break test all breaks locked up but I put that down to the car being sat a long time and lack of use...what and where do I need to start looking at to get the bulb to illuminate and the light being dead indicates a fault somewhere so could that be a reason that all the breaks locked themselves up?
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Jul 28th, 2019, 15:00 | #2 | |
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Does the speedo work and do you recall the ABS light ever working since you've owned it? Also, when was the brake fluid last changed? Just a few questions to start ^^^^^ with, will be loads more, hopefully something as simple as a blown fuse or two and perhaps a blown warning light bulb as it should light up during the self-test of the other warning lights.
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Jul 28th, 2019, 19:38 | #3 |
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Does the light actually illuminate when you turn ignition on ?
Could be simply a blown bulb... Or...a previous owner removed the bulb, in which case.....why?? |
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Jul 28th, 2019, 19:55 | #4 | |
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Two or three fuses on the system, depending on the year, if the old brake fluid is contaminated with air that means there will also be moisture in it that may have killed the ABS modulator pump and possibly the modulator block too.
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Sep 10th, 2019, 18:33 | #5 |
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still not got to the bottom of this if anyone else has any input iv put new bulb in cluster to find I still have nothing..but iv fount the over voltage relay with the 10amp fuse to find that has blown I thought changing it would be the problem but still getting nothing coming on the cluster,,so the things left are relays and sensors now also the abs module but I’m thinking that the over voltage relay could be shot if it’s got hot enough to blow the fuse
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Sep 10th, 2019, 18:42 | #6 |
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It's not a thermal fuse. If the relay had got hot enough to melt the fusible link in the fuse, the car would have been on fire and would have melted the plastic of the over-voltage relay. Something as simple as jump starting can pop an over-voltage relay fuse.
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