About 5 years ago I had a hood unlocked message (even though it was obviously locked) which meant I had to drive 60 miles with the beeping alarm deafening me all the way. As it was under my Volvo Selekt warranty, took it to the dealer. That showed a sensor fault generating an out of position code but the sensor tested OK!
The service manager had a brainwave - pulled back the boot trim to get to the roof computer, pulled the connector and arrrrragh - all green corrosion from presumably moisture ingress. Throughly cleaned the connectors and bingo - all worked fine again. He taped the connector joint to make sure all stayed dry. As I said, that was 5 years ago and no trouble since.
So, you might want to take a look there. He told me that connector issues are not uncommon and can lead to all sorts of sensor errors.
Regards
John
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Past : 96 855 T5 CD ruby red, 98 C70GT T5 coupe Saffron, 04 C70GT T5 convertible Navy
Present : 95 855 T5R Gul Yellow
08 C30SE Lux T5 Polestar
11 C70 Solstice T5 Polestar
19 XC40 T5 R-Design Polestar
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