Electrical dead obd2 scanner

Dave4.6

Member
Feb 6, 2016
21
1
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51
Houston
obd2 scanner wont turn on,port has power at #16 pin the scanner works with other vehicles my pcm was removed could this cause a problem
 
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wmburns

SN Certified Technician
Aug 14, 2009
5,505
451
164
Houston Texas
Are you saying that the PCM is removed right now? If there's no PCM or the PCM isn't getting power or ground for what ever reason, the the ODB2 scanner won't be able to talk to it.

OBTW, did you check the grounding pins of the ODB2 DLC port?
 

wmburns

SN Certified Technician
Aug 14, 2009
5,505
451
164
Houston Texas
Does the mileage show up in the cluster during key on?

Does the check engine light come on at key on?

If not there's a possibility that the PCM is either dead or not being powered up.

Does the PATS system "prove out"?

Is there key on power in Fuse F2.34, F2.2, and F2,8?

1996+ Crank with no start check list

1999-2004 BJB CJB fuse panel layout:

Did you check the PCM/CCRM ground that goes around the battery onto the radiator core support?