S60 2.4T - 2002 - check engine light "On" without OBD2 code

rocketeerx · Post by **rocketeerx** » 06 Nov 2009, 11:57

Hi there,

I just got repaired the "cylinder head" because of a coolant leaking problem on cylinder no. 1, I think the OBD2 code was P301.

Just after this succesfull repair and driving the car for about 1 or 2 miles the check engine light pops up again, but this time there's no OBD2 code. I erased the check engine light using the same OBD2 scanner, but the light comes again after a couple of miles.

I went to the Volvo dealer and asked a technitian about the problem and he told me that he has to reset the computer's memory to erase the original OBD2 code (P301), even though the scanner doesn't show any code. Cost of this reset US$250.00.

Do you guys have any idea on how can I do the reset by myself.

Thank you.

Post by **MadeInJapan** » 08 Nov 2009, 13:49

You can try disconnecting the battery for 15~20 minutes and then put the key in position II when reconnecting the battery- don't know if it would clear things or not but worth a try and you might save some $.

rocketeerx · Post by **rocketeerx** » 09 Nov 2009, 14:19

I'll try then I'll let you know what happened. Thanks.

rocketeerx · Post by **rocketeerx** » 11 Nov 2009, 11:55

it doesn't worked