Quote:
Originally Posted by GrahamHR
Let us know how you get on please. I removed and dismantled mine in the Spring, alarm battery voltage seemed fine. Main battery on the car went flat when it was off the charger for about 5 days. God, I wouldn't leave it at an airport if I was on a business trip like I used to do with my 2006 Mondeo. When I used a jump start, the siren went off. If I disconnect the main battery and reconnect, it seems to reset the alarm service required message for a few days. The electronics on these cars are very strange and unreliable!
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So got the unit opened up and the battery had leaked all over the circuit board and corroded the components. Some of the pins coming out of the microchips had broken/corroded away.
Fitted a new battery after cleaning up the board but it was no use, the malfunction was still on the dash. Ordering a new complete unit now from Volvo as it’s damaged beyond repair. If you get it on time before the board gets corroded then it’s easily fixable.
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Oct 10th, 2021, 01:39
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