Sep 21, 2015, 03:49 PM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: General Overview
- Jeep Grand Cherokee WJ 1999 to 2004 Crash Test and Safety Ratings
Important Information to help you understand your Jeep Grand Cherokee.
Browse all: General Overview
XJ Ask the Question Thread
CF Veteran
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Alrighty...
Code 21: O2 signal- Neither rich nor lean condition is detected from the oxygen sensor input.
I have a 3 month old NTK O2 sensor and the harness is fine... I know the manifold is cracked, any ideas or is it manifold?
Code 35: Radiator fan control relay circuit- open or short detected... I know this one :gunsmile:
Code 41: Charging system circuit-output driver stage for generator field does not respond properly to the voltage regulator control signal
Do what? So something is broke lol?
Code 21: O2 signal- Neither rich nor lean condition is detected from the oxygen sensor input.
I have a 3 month old NTK O2 sensor and the harness is fine... I know the manifold is cracked, any ideas or is it manifold?
Code 35: Radiator fan control relay circuit- open or short detected... I know this one :gunsmile:
Code 41: Charging system circuit-output driver stage for generator field does not respond properly to the voltage regulator control signal
Do what? So something is broke lol?
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by a_shirey
i have an OBDII reader that my dad got from his shop. he said it cost like 75 dollars. but it wont hook up to my jeep...? then a friend told me if i dont have a check engine light on it wont connect to my jeep...?
#2 find a shop and hook a real reader up. It will sniff out the issue
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
CF Veteran
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by a_shirey
well idk if there is an issue, im just curious. i think im gonna go to advanced auto tomorrow after school and ask them to read my codes. its free if you ask right?
CF Veteran
Joined: Jan 2011
Posts: 1,762
Likes: 0
From: Randoph ohio!
Year: 98
Model: Cherokee
Engine: 4.0L
Originally Posted by I Leak Oil
#1 your friend is dumb.
#2 find a shop and hook a real reader up. It will sniff out the issue
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
idk where to take it. ill have to ask the guys that live around me. and he is dumb. he has a TJ on 6.5" short arms and wants to do 3" of body lift. and he has 3 broken control arms that he hasnt fixed in months.
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by a_shirey
idk where to take it. ill have to ask the guys that live around me. and he is dumb. he has a TJ on 6.5" short arms and wants to do 3" of body lift. and he has 3 broken control arms that he hasnt fixed in months.