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Air con switch problem - D40
  #1  
Old 24-09-2019, 08:04 AM
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Default Air con switch problem - D40

My 2009 Navara 4dr 4x4 2.5 diesel has had complete new aircon fitted after the compressor disintegrated.
now the garage has phoned and said they can't get the control switch to turn the compressor on and off. It is a brand new compressor, condenser and radiator.
they tell me if they supply power directly to the compressor it works - it appears to be the switch.

any idea what the problem may be?
Any advice/fixes/etc gratefully received
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  #2  
Old 24-09-2019, 01:41 PM
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The fan has to be running (setting 1, 2, 3 or 4) so if the fan resistor has failed it may prevent the air con compressor from starting. Usually only ONE of those will fail. My own resistor pack failed for fan speed 1, but I could still use it (and have the compressor running) on speeds 2, 3 and 4.


Try changing fan speed and see if that helps? if it works, the resistor pack is in the bottom of the air duct (on the left hand side in right hand drive vehicles, not sure about yours) and costs a bloody fortune from Nissan.


On eBay they're available, I bought one from there and it's lasted a long time. Here's one example, there are plenty more:


https://www.ebay.com.au/itm/Blower-M...kAAOSw4ARcv~6m
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Old 25-09-2019, 05:29 AM
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when you say "bloody fortune" - how much? ...about
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Old 25-09-2019, 12:08 PM
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Well, it's a $20 item that Nissan sell for (if I remember correctly) about $140.
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Old 26-09-2019, 04:11 AM
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OK thanks this is the problem my workshop has......../Users/apple/Downloads/591159804.687251.mp4.zip

that won't work so below is a screen shot

Last edited by kwilko; 26-09-2019 at 04:22 AM.
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video of ECU monitor
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Old 26-09-2019, 04:21 AM
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Default video of ECU monitor

this is the latest..

10:04 petecraft See live data it is on off
10:04 petecraft But no electric to comp
10:04 petecraft Still checking
10:04 petecraft Just update
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Old 27-09-2019, 03:44 AM
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It seems the garage is having no luck whatsoever with this.......I've cut and pasted your post but no luck so far
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Old 27-09-2019, 08:51 AM
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"Intake sensor" - what is an intake sensor? Where is it?
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  #9  
Old 27-09-2019, 08:34 PM
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It's possibly the MAFS. It's about the size of a credit card, it sits in the hard pipe just outside the air filter box on the pipe that heads to the turbocharger. I am not sure this is used in the decision to operate the air conditioning compressor.
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Old 28-09-2019, 04:33 AM
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Yes -seems unlikely - but they need to try anything - the vehicle is sitting there with brand new a/c system that refuses to work.
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air, air-conditioning, aircon

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