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Windshield wiper issues

Tiny
TOPGUN63
  • MEMBER
  • JEEP
1986 Jeep CJ-7, 4.2L 5-speed. The windshield wipers will not turn off when the key is turned to the on position. I have replaced the switch, intermittant wiper governor, and motor. The switch ground wire is attached. Using a volt/ohm meter, I have determined that power is being shunted to the pink wire on the main harness plug that corresponds to the red wire on the W/W motor. The switch has no effect at all. The washer pump works appropriately. If I am reading the wiring diagram correctly, this pink wire is to the park switch on the motor. What would cause this problem if the only wire coming into the circuit is the main power and the only one leaving is the washer pump?
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Friday, April 13th, 2007 AT 6:12 PM

5 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Sounds like you have some knowledge of electrical. Might need to do a continuity test of wires to be sure none of them have melted together or shorted. Is that a Multi-function switch on the column?
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Saturday, April 14th, 2007 AT 8:56 AM
Tiny
TOPGUN63
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Wires are all intact with no apparent shorts. There is no multifunction switch on the column, it is on the dash. The wiring doesn't go through the column it has an independant circuit. That is why I am puzzled. There is a white wire on the switch, which I am assuming is the ground wire. What else can it be?
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Saturday, April 14th, 2007 AT 10:13 PM
Tiny
TOPGUN63
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After going back and rechecking everything, I took the switch out of the dash and disconnected the ground wire. The windshield wipers still turn on with the key in the on position irrespective of the switch position. I don't understand this senerio. I have replaced all of the parts and the system still doesn't work. Could it be possible that I got a bad switch? I double checked the ground and no luck. What would you do in this situation?

Steve
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Sunday, April 15th, 2007 AT 2:19 PM
Tiny
TROUBLE CODE
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Is there a relay in the circuit? It could have a bad/ rusty ground. Ohm the switch. :Idea:
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Tuesday, July 17th, 2007 AT 12:25 AM
Tiny
PAVEHK
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I have the same problem with my 86 cj7. Did you fix it?
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Wednesday, July 25th, 2007 AT 11:29 PM

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