Volvo Owners Club Forum - View Single Post - V70:

Chris_Rogers · Dec 27th, 2010, 20:40

P1xxx codes are manufacturer specific.

P1550 for your car means, speed signal missing at the engine ECU.

The speed signal comes from the ABS unit which is faulty.

Have a search for DIY ABS module repairs on this forum.

Dec 27th, 2010, 20:40	#2
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	P1xxx codes are manufacturer specific. P1550 for your car means, speed signal missing at the engine ECU. The speed signal comes from the ABS unit which is faulty. Have a search for DIY ABS module repairs on this forum.