P1647 ECM HO2S Control Malfunction- B Bank
#1
![Default](/forum/images/icons/icon1.gif)
I have Jaguar XJ VDP, 2002 with 76000 miles, last month Istarted having Check engine light. I connected my computer and cleared theerror, few minutes later I got the error again, so I extracted the error.itsays “P1647 ECM HO2S Control Malfunction- B Bank”. Any suggestion what to do?
Please Help.
Thanks
#2
![Default](/forum/images/icons/icon1.gif)
Welcome to the forum trcns,
Good to have you here with us at Jaguar forums.
This particular DTC turns up here fairly regularly. The possible causes are:
1. HO2S heater failure
2. HO2S sensing circuit short circuit to ground or high voltage
3. HO2S sensing circuit open circuit
4. ECM failure
Most times it turns out to be the sensor on the way out.
Follow this link XJ ( X308 ) XJ8 / XJR - Jaguar Forums - Jaguar Enthusiasts Forum to the X308 forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
You can also visit the US North East Region forum by following this link North East US - ME NH VT MA RI CT NJ NY PA - Jaguar Forums - Jaguar Enthusiasts Forum to find other members in your region.
Enjoy the forums.
Graham
Good to have you here with us at Jaguar forums.
This particular DTC turns up here fairly regularly. The possible causes are:
1. HO2S heater failure
2. HO2S sensing circuit short circuit to ground or high voltage
3. HO2S sensing circuit open circuit
4. ECM failure
Most times it turns out to be the sensor on the way out.
Follow this link XJ ( X308 ) XJ8 / XJR - Jaguar Forums - Jaguar Enthusiasts Forum to the X308 forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
You can also visit the US North East Region forum by following this link North East US - ME NH VT MA RI CT NJ NY PA - Jaguar Forums - Jaguar Enthusiasts Forum to find other members in your region.
Enjoy the forums.
Graham
#3
Join Date: Oct 2007
Location: PHX some of the time
Posts: 117,636
Received 6,336 Likes
on
5,521 Posts
#4
Join Date: Nov 2006
Location: Glasgow, Scotland UK
Posts: 47,302
Received 9,011 Likes
on
4,114 Posts
![Default](/forum/images/icons/icon1.gif)
Hey there and welcome aboard....... good to have you here with us here at Jaguarforums
If you need any further help with the site, please just ask any moderator, veteran member and we'll be glad to assist.
In the meantime, any useful site information you may need such as how to post pictures, edit signatures, add videos, using the search facility etc, can be found here within the following link
Helpful_information
Please also take the time to check out the regional section for your area!
There are lots of members local to you with the same interests with info on local dealers and possible meets.
Regional - Jaguar Forums - Jaguar Enthusiasts Forum
I've manually upgraded you to Full forum access so you can better view the site and all its features
Please Jump on in and enjoy the site........
![Icon Beerchug](https://www.jaguarforums.com/forum/images/smilies/icon_beerchug.gif)
See you in the forums....
#5
Join Date: Apr 2012
Location: Summerville, South Carolina
Posts: 24,746
Received 4,323 Likes
on
3,733 Posts
#6
#7
Trending Topics
#8
#9
#11
![Default](/forum/images/icons/icon1.gif)
well i decided to make a guide since this codes bug almost everyone:
jaghelp.com: P1646 and P1647 on your XJ
That way u have part numbers and a clear understanding of what is bank a and bank b. Best of luck!
jaghelp.com: P1646 and P1647 on your XJ
That way u have part numbers and a clear understanding of what is bank a and bank b. Best of luck!
#12
![Default](/forum/images/icons/icon1.gif)
It was easy to change Bank A sensors.
I don't know how to reach to Bank B sensors. I looked from under the car, feels like impossible to reach them. If some body changed O2's for bank B, upper and lower, please advise the best approach? Pictures will be great.
I don't know how to reach to Bank B sensors. I looked from under the car, feels like impossible to reach them. If some body changed O2's for bank B, upper and lower, please advise the best approach? Pictures will be great.
Last edited by trcns; 10-10-2013 at 11:42 AM.
Thread
Thread Starter
Forum
Replies
Last Post
FS[Western US]: FREE- 99 XJR ECM and TCM
XJsc-guy
PRIVATE For Sale / Trade or Buy Classifieds
6
09-25-2015 11:09 AM
zdrapec
PRIVATE For Sale / Trade or Buy Classifieds
0
09-25-2015 05:49 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)