× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2002 Jeep Grand Cherokee Laredo 4.0L Radiator Fan
Posted to Chrysler Engine on 11/11/2007 12 Replies

The only thing that wierd is that the PWM sig. from ECM to the electronic relay is an "Square A/C Wave Form". Is that wrong or do I have another bad relay. The fan never worked when relay was replaced twice. It works if I unplug the relay and jumper the #3 and...

12 Replies Received (View Replies)

  Related Documents & Media  2002 Jeep Grand Cherokee Laredo

 
Message Closed w/Summary

car Vehicle Data

2002 Jeep Grand Cherokee Laredo

VIN 1J4GW48S72
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedRadiator Fan
ConditionsNot Working
Message Closed w/Summary

car Vehicle Data

2002 Jeep Grand Cherokee Laredo

VIN 1J4GW48S72
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedRadiator Fan
ConditionsNot Working