I have a 1994 Volvo 850 Wagon Non-Turbo. I check my A codes fairly regularly but I have never checked my B codes. My questions are, can you check B codes, and if you can, how do you check B codes? As you can see in the attachment, the A side has a light and a button, but the B side has neither. I've tried putting the jumper in the B side and pressing the button on the A side, but the light never lights. Anybody able to check for B codes? If you do, how do you do it?
Thanks
1994 850 How to read B codes
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RickHaleParker
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Are you holding the button down long enough?
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1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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