| | Ways to read out error codes | | | | |
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| | Volvo 850 ECM Motronic 4.3 | | | | |
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| | ECM | LED BLINK CODE | | DIY | |
| | A/C | LED BLINK CODE | | DIY | |
| | CRUISE CONTROL | LED BLINK CODE | | DIY | |
| | AW50-42 | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | ABS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | INSTRUMENTS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | IMMOBILIZER II | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | POWER SEAT | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | SRS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | Reset Service Light | VOL-FCR + | VAG KKL FTDI | --- | |
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| | Volvo 850 ECM Motronic 4.4 | | | | |
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| | ECM | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | A/C | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | CRUISE CONTROL | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | AW50-42 | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | ABS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | INSTRUMENTS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | IMMOBILIZER II | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | POWER SEAT | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | SRS | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
| | Reset Service Light | VOL-FCR + | VAG KKL FTDI | iCarsoft i906 Volvo/Saab | |
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| | VOL_FCR: | http://www.ilexa.co.uk/acatalog/volfcr.html | | |
| | iCarsoft i906: | | Google: iCarsoft i906 Volvo/Saab | | |
| | VAG KKL: | | Google: blue vag kkl obd2 cable with ft232rl chip | | |
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| | Volvo 850 ECM Siemens / Fenix | | | | |
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| | https://www.scandcar.com/volvo-850-error-codes/ | | | | |
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| | More info: | | | | |
| | https://www.matthewsvolvosite.com/forums/viewtopic.php?t=85982&start=90 | | | | |
