Both turn singnals blink once then stop ? - JeepForum.com
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post #1 of 25 Old 01-07-2012, 08:37 PM Thread Starter
Candymancan
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Both turn singnals blink once then stop ?

My moms 4.0 is having an issue with the blinkers. The right and left turn signal turn on for a second then just stop blinking. If i flip the switch up and down they blink again once or twice. The other day 1 bulb stopped working and the right blinker was blinking really fast, but then when i got to the store it started working again..

The hazards work fine tho..

Any idea's ?

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post #2 of 25 Old 01-07-2012, 09:36 PM
Falkon
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They blink, both at the same time?
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post #3 of 25 Old 01-08-2012, 09:07 AM Thread Starter
Candymancan
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No., When i turn the left signal on it blinks once and makes that clicking noise and then it just goes black and stops. The right turn signal does the same thing. The emergency lights stay on tho when i hit the button.
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post #4 of 25 Old 01-08-2012, 09:10 AM
TJRUSSELL
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Check for dirty ground wires

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post #5 of 25 Old 01-08-2012, 09:16 AM Thread Starter
Candymancan
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where would i look ? Im not that great with electrical. Im thinking it could be the relay but then wouldnt the hazards not work ?

Where is the relay for the blinkers ? Maybe i could swap the one in my 5.9 out for it to check if it is the relay before i start buying parts
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post #6 of 25 Old 01-08-2012, 09:21 AM
ratmonkey
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COMBINATION FLASHER
The combination flasher is a smart relay that functions
as both the turn signal system and hazard
warning system flasher. The combination flasher is
designed to handle the current flow requirements of
the factory installed lighting.
If supplemental lighting is added to the turn signal
lamp circuits, such as when towing a trailer with
lights, the combination flasher will automatically
compensate. This allows the flash rate to remain the
same, regardless of electrical load increases. However,
if a bulb fails in the turn signal lamp circuits,
the flash rate of the remaining bulbs in that circuit
will increase to 120 flashes per minute, or higher.
While the combination flasher shares the terminal
orientation (footprint) of a International Standards
Organization (ISO)-type relay, the internal circuitry is
much different. The combination flasher contains active
electronic integrated circuitry elements. Do not substitute
any other relay for the combination flasher.
ZJ TURN SIGNAL AND HAZARD WARNING SYSTEMS 8J - 1
The combination flasher cannot be repaired and, if
faulty, it must be replaced. Also, because of the combination
flasher’s active elements, it cannot be tested
with conventional automotive electrical test equipment.
If the flasher is believed to be faulty, test the
turn signal and hazard warning system circuits as
described in this group. Then, replace the combination
flasher with a known good unit to confirm system
operation.



REMOVAL AND INSTALLATION
COMBINATION FLASHER
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS,
REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS
COULD RESULT IN ACCIDENTAL AIRBAG
DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the fuse access panel by unsnapping it
from the right cowl side trim panel.
(3) Remove the nut securing the right cowl side
trim to the junction block stud (Fig. 3).
(4) Remove the two screws securing the right cowl
side trim to the right front door opening trim.
(5) Remove the right cowl side trim panel.
(6) Unplug the combination flasher from the junction
block.
(7) To install the flasher, align the terminals with
the cavities in the junction block and push the
flasher firmly into place.
(8) Connect the battery negative cable.
(9) Test the combination flasher operation.
(10) Install the right cowl side trim panel and the
fuse access panel.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #7 of 25 Old 01-08-2012, 09:31 AM
TJRUSSELL
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I beleave theirs a ground on each side of the radiator support

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post #8 of 25 Old 01-08-2012, 09:32 AM Thread Starter
Candymancan
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Ok, but which one of the square relays is the one for the flasher ratmonkey ??


Here is a pic i stole of inside the panel. Which one is the right one ? Is it the fat black one on the bottom corner, or one of the rectangle ones in the middle ? Or is it the big grey one

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post #9 of 25 Old 01-08-2012, 09:44 AM
TJRUSSELL
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its inside the steering column

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post #10 of 25 Old 01-08-2012, 09:46 AM
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my bad im thinking on tjs

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post #11 of 25 Old 01-08-2012, 09:54 AM
ratmonkey
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it's the large gray one there

DESCRIPTION AND OPERATION
ELECTRONIC FLASHER RELAY
The electronic flasher relay in the junction block
supplies battery voltage to the turn signal/hazard
switch circuitry in the multi-function switch. When
the ignition switch is OFF, the hazard flashers will
operate but the turn signals will not.
Circuit A7 from fuse 15 in the Power Distribution
Center (PDC) powers the electronic flasher through
fuse 13 in the junction block.
In the RUN position, the ignition switch connects
circuit A1 from fuse 8 in the Power Distribution Center
(PDC) to circuit A22. Circuit A22 feeds the flasher
relay through fuse 6 in the junction block. Circuit Z1
provides ground for the relay.
Circuit L5 from the flasher relay connects to the
multi-function switch to supply power to the turn signal
circuits. The multi-function switch connects to
the right rear turn signal lamps on circuit L60 and
the left rear turn signal lamp on circuit L61. Circuit
L64 from the switch feeds the right front turn signal
lamp and side marker lamp. Circuit L65 feeds the
left front turn signal lamp and side marker lamp.
Circuit L12 from the flasher relay connects to the
multi-function switch to supply power to the hazard
flasher circuits. The multi-function switch connects
to the rear turn signal lamps on circuits L60 and L61
and the front turn signal and side marker lamps on
circuits L64 and L65.
TURN SIGNALS
When the operator selects the right turn signal,
the multi-function switch connects circuit L5 from
the flasher relay to circuits L60 and L64. Circuit L64
feeds the right front turn signal lamp and side
marker lamp. Circuit L60 feeds the right rear turn
signal lamp. Circuit L64 also splices to power the
right turn signal indicator lamp in the instrument
cluster.
When the operator selects the left turn signal, the
multi-function switch connects circuit L5 from the
flasher relay to circuits L61 and L65. Circuit L61
feeds the left rear turn signal lamp and side marker
lamp. Circuit L65 feeds the left front turn signal
lamp. Circuit L65 also splices to power the left turn
signal indicator lamp on the instrument cluster.
Circuit Z1 provides ground for the turn signal
lamps.
HAZARD FLASHERS
When the operator selects the hazard flashers, the
multi-function switch circuit L12 from the flasher
relay circuits L60, L61, L64 and L65.
Circuit L61 feeds the left rear turn signal lamp.
Circuit L60 feeds the right rear turn signal lamp.
Circuit L65 feeds the left front turn signal lamp, side
marker lamp and the instrument cluster indicator
lamp. Circuit L64 feeds the right front turn signal
lamp, side marker lamp and the instrument cluster
indicator lamp.
Circuit Z1 provides ground for the hazard flasher
lamps.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #12 of 25 Old 01-08-2012, 09:57 AM Thread Starter
Candymancan
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I need to take some electrical class's or something, im so bad when it comes to understand all that lol.

So i'll check the fuse, and the relay then if its the big grey one.

Thanks ratmonkey

Found a few pictures just now showing the fuses and the relay



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post #13 of 25 Old 01-08-2012, 12:32 PM Thread Starter
Candymancan
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K it wasnt the fuses, it was the flasher relay. Got a new one from advance auto parts for $15 works fine now, sounds a little different tho but whatever
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post #14 of 25 Old 01-08-2012, 12:44 PM
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Did you ensure you got one of the active ones? It's not just a generic flasher relay and the guys at Advance Auto most likely won't know that.

I just checked their site and they don't list the turn signal flasher specifically for a ZJ. They list the generic Tridon one.

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post #15 of 25 Old 01-08-2012, 12:56 PM Thread Starter
Candymancan
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The one i got is from Tridon yes. What do you mean by active ones ? Whats the problem with a generic relay ? because im not spending $60+ for one at a dealership
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