Question about 2002 Cadillac Escalade

1 Answer

02 escalade wont start now code p1631 on scanner how do i fix

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 150 Answers

This is the theft deterrent system --- the body control module (BCM) and power train control module (PCM) have conflicting codes. The codes between the two must match. If you've replaced one, you need to 're-learn' them so the codes match.

Posted on May 03, 2014


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Car wont start

Any new component needs to be paired with the existing components or the ECU wont recognize the new part.

Aug 02, 2014 | 1998 Buick Park Avenue

1 Answer

N o revs p1639 p1631

My generc code list says:
P1631 - Theft deterrent start enable signal incorrect/Main relay malfunction (Power hold)
P1639 - Vehicle ID block corrupted or not programmed.

Scan the immobiliser system and if necessary re-code/program.

Sep 26, 2013 | Cars & Trucks

1 Answer

Alternator p1631

Four digit codes are brand specific, for Kia the code means the main circuit for the alternator is open, or it is not charging the battery.

Jul 01, 2013 | 2004 Kia Sorento

1 Answer

Chevlolet astro van 09/98 P1631

hello sir how r u .. i have a problam on my car.GMC ENVOY . where r showing trobol code p1631.and this car is not working.. plz telll me how to solbe this problam.

Apr 16, 2013 | 1998 Chevrolet Astro

1 Answer

While pulling a small utility trailer with our 2008 Cadillac escalade we get off the freeway and start slowing down and suddenly, without warning the engine cuts out. When we try starting it again it...

1st check the spark plugs & wires
2nd check the alternator or starter
3nd check all sensors (crank shaft sensor, 02,)
finally the "brain" of the vehicle may be going out...

Jan 05, 2012 | 2008 Cadillac Escalade Esv

2 Answers

2002 escalade service stability system. Is there a quick fix w/o a dealer checking it out?

Any high end scanner will be able to access the system. It dosen't have to be a dealer.

Jan 10, 2011 | 2002 Cadillac Escalade

1 Answer

Check engine light is on and when the code scanner is hooked up it dose not read at all. I put the code scanner on my 2008 pontiac G6 GXP and it works fine. What is the most common problem with the 2002...

I had the same trouble with my 2002 Escalade and it was really ease to fix. Check the cigarette lighter fuse for its condition. If this fuse is bad, the scanner will not work. Hope this helps

Nov 30, 2010 | 2002 Cadillac Escalade

1 Answer

My 6 cd changer on my cadillac escalade 2004 model suddenly stopped working.... i went to the electronics shop and after taking it out and trying to fix it...they couldnt manage to fix...when they decided...

Put a scanner on the car and see if there is a code set. I believe the car thinks the radio was stolen so it won't recognize it. If you can find a code reset it and you maybe ok.

May 25, 2017 | 2004 Cadillac Escalade Ext

1 Answer


If you mean that a scanner will not connect to the computer to read codes. most likely the fuse supplying 12 Volts to the OBD II plug is blown. Usually on GM cars it is the same fuse as lighter. Labeled LTR on fuse block Driverside of dash between door and dash. door has to be open to see it. on end of dash

Oct 09, 2009 | 2000 Cadillac Escalade

1 Answer

Code meaning Mazada 97 Pres


Mar 02, 2009 | 2005 Chevrolet Colorado

Not finding what you are looking for?
2002 Cadillac Escalade Logo

222 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8516 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides