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Unread 12-27-2012, 04:18 PM   #1
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1999 XJ Cherokee 
Join Date: Jan 2007
Location: ohio
Posts: 65
How to test rear defroster

Ok, '99 xj, rear defroster switch lights up when switched on. Rear glass does not defrost. Where do I check next ?

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Unread 12-27-2012, 04:26 PM   #2
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2000 XJ Cherokee 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
Posts: 23,538
- Fuses.
- Test for 12 volts at the wires that connect to the window glass.
- Inspect the defrost stripes on the window glass for damage.

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Unread 12-27-2012, 05:26 PM   #3
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1996 XJ Cherokee 
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Location: SoCal
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Mine did the same thing. On the back window in each corner at the bottom of the window there are 2 wires (one on each side). On mine, the passenger side wire broke free from the glass. All I had to do was close the door with myself in the back hatch area and re-solder the lead onto the window.
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Unread 12-27-2012, 06:58 PM   #4
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2000 XJ Cherokee 
Join Date: Nov 2012
Location: Louisville, CO
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My rear defrost also doesn't work. I can see the wires in the hatch opening are broken. They need to be repaired. I don't have any play in the wires so I'll need to open up the headliner and the back hatch and replace some wiring.
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Unread 12-27-2012, 07:45 PM   #5
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Engine Bay Fuse Box (PDC)

Kick Panel Fusebox
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