Question about Jeep Grand Cherokee
Great question and great digging , you have bad 02.
im sad because you didnt post the symptoms or evidence.
real said, so i can get on the same page...
so you found out it has a relay... but which one?
the ASRD relay or the down stream relays (I guess at down)
it is a grand cherokee right and has 4l. good.
wow 16 pages on 02 alone, just schematics.
left bank, or right bank, always post sensor code like this
B1S2, B2S1... see? so i dont have to read all 16 pages.
ill take the wild assumption B1S2. the most important one.
the down stream. relay ,is just a reg. common, SPST relay.
30 and 86 are jumped, (connected) and are 12v key one
or the ASRD is malfing (not saying it is bad) or the fuse is blown
you did check all fuses first , right? with any ohm meter !!!
fuse 16 is pin 30
the output of relay is 87
the control line (coil) is 86, the PCM controls this line using
so bad to CONTEXT
why are you fiddling down stream ?
got P040x errors, got scan errors for CAT is weak?......
these sensors only test the cat for early or late death
why be here, Smog man? context answer this, or were mis directed
by internet bunny's ?????
this is a great post, one of the few that tell what car. what engine in car.very rare here, kudos.
but no context.
car runs bad need help
CEL glows , no scan tool?
Posted on Dec 31, 2013
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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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
Tips for a great answer:
Jul 01, 2016 | 1997 Jeep Grand Cherokee
Mar 16, 2015 | Cars & Trucks
May 14, 2014 | 1991 Jeep Cherokee Briarwood
Jan 06, 2014 | 2004 Jeep Liberty
Nov 22, 2013 | Jeep Wrangler Cars & Trucks
Sep 30, 2013 | 1987 Honda Accord
Aug 28, 2013 | 2004 Jeep Grand Cherokee
Jun 21, 2010 | 2001 Dodge Stratus
72 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: