For the benefit of the archives: There is an error in the FSM wiring diagram for the turn signal circuit in the 1996 ZJ, at least compared to the actual wiring in my Jeep. The diagram shows the power for the turn signal flasher going through the fuse in the junction box to the #2 terminal on the flasher. It also shows the output to the turn signal switch on terminal #4. These are reversed!!!!! I have had the junction box apart and done all the pin out work to prove it.
If you are testing for a faulty flasher (it is not just a flasher according to the FSM - it's a special DC only part that can't be replaced w/ a standard flasher -$40) it makes sense to check to make sure it is receiving power.
The actual #4 power supply is the vertical terminal at the very bottom center of the flasher plug. The #2 to the turn signal switch and turn signals is the horizontal connection at the very top of the flasher plug. If you follow the FSM and find power on both sides of the #6 fuse and none to the #2 terminal you will conclude that the problem is in the junction box as I did - don't - check the #2 terminal for power and read on.
The hazard warning connections are as follows (in case that is somebodys problem) the vertical terminal on the very front center is the power supply. The output to the hazard switch is the very rearward center vertical connection.
The center connection (vertical) in the flasher plug is a ground.
The junction box in my ZJ is of very heavy duty construction and is very unlikely to be the source of any electrical problems internally. There are no solder joints or other connections to cause problems. Just metal busses carrying current. Check something else if you think the problem is in there - it's not , unless you have submerged it in salt water or something.
Hope this saves somebody the work I went through pulling it out and thoroughly checking it just because the FSM is WRONG.
HTH
Mike
If you are testing for a faulty flasher (it is not just a flasher according to the FSM - it's a special DC only part that can't be replaced w/ a standard flasher -$40) it makes sense to check to make sure it is receiving power.
The actual #4 power supply is the vertical terminal at the very bottom center of the flasher plug. The #2 to the turn signal switch and turn signals is the horizontal connection at the very top of the flasher plug. If you follow the FSM and find power on both sides of the #6 fuse and none to the #2 terminal you will conclude that the problem is in the junction box as I did - don't - check the #2 terminal for power and read on.
The hazard warning connections are as follows (in case that is somebodys problem) the vertical terminal on the very front center is the power supply. The output to the hazard switch is the very rearward center vertical connection.
The center connection (vertical) in the flasher plug is a ground.
The junction box in my ZJ is of very heavy duty construction and is very unlikely to be the source of any electrical problems internally. There are no solder joints or other connections to cause problems. Just metal busses carrying current. Check something else if you think the problem is in there - it's not , unless you have submerged it in salt water or something.
Hope this saves somebody the work I went through pulling it out and thoroughly checking it just because the FSM is WRONG.
HTH
Mike
