Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Interior/Exterior/Visual

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 01-06-2014, 07:05 PM
ENFORCER's Avatar
Premium Member
My Jeep: 2014 6.4L WK2
 
Join Date: May 2011
Location: Sydney, Australia
Posts: 2,184
Thanks: 29
Thanked 139 Times in 112 Posts
Rep Power: 322928
ENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond reputeENFORCER has a reputation beyond repute
Re: Resistors vs led electronic flashers??

From my understanding, there is no individual flasher unit. All the indicator flashing is controlled by the BCM (Body Control Module) and cannot be changed to accommodate LED turn signals. The only way I have seen, is to use the resistors to trick the BCM into thinking that the standard globe is being used.

Being the car is CANBus, you need to be very careful not to upset the electronics of the car. Gone are the old school days of just replacing the flasher can to a LED compatible unit.

The resistor method is the only simple way of achieving a normal operation of LED turn signals.
__________________

__________________
Previous Ride = 2011 JGC CRD Overland
Current Ride = 2014 Silver JGC SRT with Pano, HK and Spider monkeys.
Mods = CLSTech Ribbon Mod

Best 1/4 13.4@102Mph
Reply With Quote
  #14  
Old 08-24-2014, 09:36 AM
Mozzie's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Jan 2014
Location: Sydney, Australia
Posts: 404
Thanks: 22
Thanked 92 Times in 68 Posts
Rep Power: 1395
Mozzie is on a distinguished road
Re: Resistors vs led electronic flashers??

I was also very 'disappointed' that the 2014 JGC had LEDs everywhere except the rear. I have changed to LED reverse and turn indicators. The indicators do require load resistors to stop the hyperflash.

My initial ebay purchase provided some useless dull lights that we much dimmer than the factory bulbs. I have now purchased some amber LEDS to be proud of. The 30W LED units are a bit brighter than the factory bulbs. They draw 400mA (4.8W) and with 8 ohm/50W resistors, they match the factory bulbs specs (22W).

I have attached a video with the 30W LED on the left and the factory bulb on the right.
Attached Files
__________________

Reply With Quote
The Following User Says Thank You to Mozzie For This Useful Post:
  #15  
Old 09-27-2016, 12:59 PM
DrSpeed's Avatar
Member
My Jeep: 2014 5.7L WK2
 
Join Date: Jan 2016
Location: PDX
Posts: 191
Thanks: 147
Thanked 49 Times in 34 Posts
Rep Power: 462
DrSpeed is on a distinguished road
Re: Resistors vs led electronic flashers??

Quote:
Originally Posted by Mozzie View Post
I was also very 'disappointed' that the 2014 JGC had LEDs everywhere except the rear. I have changed to LED reverse and turn indicators. The indicators do require load resistors to stop the hyperflash.

My initial ebay purchase provided some useless dull lights that we much dimmer than the factory bulbs. I have now purchased some amber LEDS to be proud of. The 30W LED units are a bit brighter than the factory bulbs. They draw 400mA (4.8W) and with 8 ohm/50W resistors, they match the factory bulbs specs (22W).

I have attached a video with the 30W LED on the left and the factory bulb on the right.
We need to figure out how to reprogram the BCM to allow the turn signals to flash amber under the brake lights, and have the red lights be dedicated to the brakes....

Jealous of the non-US models with this feature...
Reply With Quote
  #16  
Old 09-27-2016, 01:19 PM
Member
 
Join Date: Aug 2016
Posts: 15
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 64
text is on a distinguished road
Re: Resistors vs led electronic flashers??

Quote:
Originally Posted by DrSpeed View Post
We need to figure out how to reprogram the BCM to allow the turn signals to flash amber under the brake lights, and have the red lights be dedicated to the brakes....

Jealous of the non-US models with this feature...
Well I learned something today. So US models have reverse lights on the bottom row of the lights? Where the non us models have half turn signal, half reverse light on bottom? Interesting.
Reply With Quote
  #17  
Old 09-27-2016, 01:24 PM
Jim_in_PA's Avatar
Super Moderator

My Jeep: 2012 5.7L WK2
 
Join Date: Jul 2012
Location: SE PA (central Bucks County)
Posts: 4,069
Thanks: 722
Thanked 502 Times in 399 Posts
Rep Power: 95447
Jim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond repute
Garage
Re: Resistors vs led electronic flashers??

'JeepNut, keep in mind that everything is computer controlled in current generation JGC, so "centralizing" load resistors isn't quite that simple. Things like traditional "flashers" are a thing of the past The load resistors are to make up for the fact that the computer cannot detect most LEDs properly on flashing circuits and thinks they are 'burnt out', resulting in hyper-flashing.
__________________

__________________
2012 GC Overland Summit - Winter Chill with New Saddle interior. 5.7L HEMI V8 - Pirelli Scorpion Verde Plus "shoes" - LED fogs and DRLs



Day-job...Telecom Technical Sales
Avocations...Woodworking, Equestrian, Food, Photography
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Plazma (LEP) or LED lights? Load Resistors needed? Laredo2006 Interior/Exterior/Visual 0 05-22-2013 09:54 PM
led resistors ? jeremyc653 Interior/Exterior/Visual 2 07-01-2012 04:31 AM
Led bulb resistors too hot!!! carioca Troubleshooting/Problems 5 04-25-2012 09:09 PM
Turn signals and Flashers - Help!?!? mack470 Troubleshooting/Problems 14 12-09-2010 09:09 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:51 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.