Chrysler Repair: 07 Pacifica: LEDs vs. Conventional, flasher problem, load levelers, parallel resistor


Question
QUESTION: I have 2007 Pacifica...Is the high mount rear brake lights made up of LED or normal type bulbs, I know that they are not servicable and that the whole "light bars needs to be replaced if needed....also exactly where is turn signal/hazard flasher located, I know that they are combined into one

ANSWER: Hi Scott,
My '05 manual for the Pacifica says that it is an LED unit and as noted cannot be serviced. As I read the wiring diagrams the turn signal/hazard flasher no longer exists as a plug in unit but rather its function has been subsumed into the body control module. What exactly is the symptom and which system is the problem showing up? There is a troubleshoot manual for the bcm so I have to approch the issue that way.
Roland

---------- FOLLOW-UP ----------

QUESTION: Thanks for the reply Roland....the issue is self inflecting, I have replaced most of the exterior light bulds with LED lights, I knew that this might cause the lights to "hyper" flash....thus, this has happen. I read that if I install an "LED approved" or "Heavy Duty" flasher that this might correct the hyper issue and was wondering where it was located (also informed about "load levelers" would fix too).....I was hoping to take the flasher route to fix the issue but your informing me that there is no true flasher on the car and that the "body control module" controls the flashing.....FYI, the turn signals are hyper flashing, the hazard lights flash normal....THANKS for any addtional advise.....Scott

Answer
Hi Scott,
I am not knowledgeable about substituting LED's for conventional bulbs so can't offer any advice to you. But because there is no flasher apparently to substitute for I can't think of any solution other than possibly adding a parallel resistor to the circuit which will draw an amount of current equal to that which is not being drawn as the result of the reduced draw of the LED's compared to that of the incandescent bulbs that were substituted for. If you know the comparitive total reduction based upon the specs of the bulbs vs the LED's, that would tell you how much to add using the basic law V=IR.
Roland