3 Codes pulled
Thread Starter
Junior Member
Joined: Feb 2014
Posts: 66
Likes: 0
From: South Texas
Year: 2001
Model: Cherokee
Engine: 4.0
3 Codes pulled
I just copied and pasted my last post from the other thread b/c the original thread got moved to the introductions page.
Well this weekend I was able to pull some codes with the scanner....
1)P01491-Rad Fan Control Relay Circuit An open or shorted condition detected in the radiator fan control relay control circuit. This includes PWM solid state relays.
2)P01494- Leak Detection Pump Sw or Mechanical Fault Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch.
3)P01555-O2 Sensor Heater Failure Oxygen sensor heater element malfunction
The descriptions I just got from the stickies so I don't completely understand what they mean but obviously something is wrong with my cooling system..... maybe a hose is broken somewhere? and the water pump is bad? any help?
Well this weekend I was able to pull some codes with the scanner....
1)P01491-Rad Fan Control Relay Circuit An open or shorted condition detected in the radiator fan control relay control circuit. This includes PWM solid state relays.
2)P01494- Leak Detection Pump Sw or Mechanical Fault Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch.
3)P01555-O2 Sensor Heater Failure Oxygen sensor heater element malfunction
The descriptions I just got from the stickies so I don't completely understand what they mean but obviously something is wrong with my cooling system..... maybe a hose is broken somewhere? and the water pump is bad? any help?
Thread
Thread Starter
Forum
Replies
Last Post
Tcq192
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
Dec 30, 2025 02:21 PM
NM-XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
Oct 23, 2018 04:21 PM
jeeplover45
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
Sep 4, 2015 01:07 PM
jeeplover45
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
Sep 4, 2015 06:44 AM
TNXJsleeper
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
Sep 2, 2015 05:31 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)