2007 Jeep Grand Cherokee tail light problem. When the lights are turned on the rear right tail light and blinkers do not work. When the lights are turned off they work like normal. A ground issue maybe?...
battery charged, fuses good, F10 is RR. park
trailer wring hacks? (inspections find that) and collision damage there RR.
does RF work with RR fails>? both ends of car have park and blink.
I avoid Tail word for that one fact.
if you scan the PCM with a scan tool, are there DTC errors.
not scanning makes work 10x harder.!
"rear right tail light and blinkers do not work."
both are dead? "and"
then turn off parks and blinks start working?
maybe the parks and blink wires shorted to gether.
what does not work mean, dead, or stuck on?
all key facts in diagnosis. all that.
i have 2007 GC FSm.
there are 4 elements (lamps actual there)
park is seperate from blink , totally.
the MIP module under hood drives turns off sperate drivers.
LF, RF ,LR, RR. so RR is bad. and not related to front like old cars.
all park lines go to a single point, the park relay 7 output.
so if something shorts to park all parks mess up.
each line has a fuse. so each can die by self.
There is only 1 park relay #7
so my question is, do any other park lamps mess up.
you said the blinks and parks (tail) do not work.
so? what about all park lamps. side and front.
if only RR fails, no other symptoms, i concur, bad ground. there.
a volt meter can measure bad grounds
with wire to battery neg,
and red meter at ground on lamp base.
if not 0v, or less than (0.5v) a 1/2 volt, its bad.
Jun 10, 2010 |
2007 Jeep Grand Cherokee Overland