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Nissan almera 1.8 sport 5door 02
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Kevin H View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin H Quote  Post ReplyReply Direct Link To This Post Topic: Nissan almera 1.8 sport 5door 02
    Posted: 16 Feb 2017 at 7:04pm
Hi hope i can get some help my nissan almera rear heated window
Switch works on and of fuses are ok I Think it might be the
Relay switch it clicks when the heater switch lights up cant find
The relay switch i hear a click right hand side beside fuses so dont know if it is switch on dash or relay gratefull for any help
Cheers kevin H
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keithSRI View Drop Down
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Points: 2401 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keithSRI Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 7:58pm
Welcome to the forums. Can't provide any advice myself but sure someone will be able to help soon.
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Kevin H View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin H Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 8:02pm
Thanks keith any way hope you are right
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Electrolyte View Drop Down
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From 2001 service manual

The rear window defogger system is controlled by the time control unit. The rear window defogger operates
only for approximately 15 minutes.
Power is supplied at all times
+ through 20A fuse [No. 7, located in the fuse block (J/B)]
+ to rear window defogger relay terminal 5 (B7 relay models) or 3 (B6 relay models)
+ through 10A fuse [No. 13, located in the fuse block (J/B)]
+ to rear window defogger relay terminal 6 (B6 relay models).
+ through 15A fuse [No. 5, located in the fuse block (J/B)]
+ to time control unit terminal 9.
With the ignition switch in the ON or START position, power is supplied
+ through 10A fuse [No. 10, located in the fuse block (J/B)]
+ to the rear window defogger relay terminal 1 and
+ to time control unit terminal 1.
Ground is supplied to terminal 5 of the rear window defogger switch through body grounds M28 and M67.
When the rear defogger switch is turned ON, ground is supplied
+ through terminal 3 of the rear defogger switch
+ to time control unit terminal 3.
Terminal 13 of time control unit then supplies ground to the rear window defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
+ through terminals 5 and 7 of the rear window defogger relay (B6 relay models) or
+ through terminal 3 of the rear window defogger relay (B7 relay models)
+ to the rear window defogger and door mirror defogger.
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
switch.
REAR WINDOW DEFOGGER
System Description

The relay is behind the dash side lower RH finisher.
The time control unit is behind the lower instrument panel close to the steering wheel column.
If in doubt give it a clout!
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p11primeragt View Drop Down
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Points: 18750 		Post Options Post Options   Thanks (0) Thanks(0)   Quote p11primeragt Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 8:52pm
To find which relay it is,touch them one at time while you operate the switch,you will be able to feel it working.
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Electrolyte View Drop Down
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Points: 1368 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Electrolyte Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 9:08pm
B6 relay is for cars with heated mirrors and B7 is for without.
If in doubt give it a clout!
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Kevin H View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin H Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:03pm
Thanks Electrolyte i will look at that still not shure if
The switch is faulty or it is the relay is their any way
Of testing switch
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Electrolyte View Drop Down
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Points: 1368 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Electrolyte Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:36pm
Looking at the diagram, if the switch lights up then that would rule out the switch, the time control unit and the relay as the relay powers both the light in the switch and the window heating element.
I would suspect a bad connection at the glass itself.
Look for blackening at the spade terminal where it connects to the glass.
You could also meter the connection to check for 12 volts.
If in doubt give it a clout!
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Electrolyte View Drop Down
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Points: 1368 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Electrolyte Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:49pm
Another possibility is a break in the wiring harness where it passes from the roof to the tailgate.
The wires can become brittle and break with constant opening and closing.
If in doubt give it a clout!
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Kevin H View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin H Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 1:02pm
Thank you very much mate i will give that a try thank you so much
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