Mechanics

ASCD DOES NOT SET WHEN PRESSED.

1992 Nissan Maxima • 295,000 miles

1992 Nissan Maxima 300se Aut. Ascd does not work. When SET button is pressed green light comes on but will not hold and light goes of immediately. I have checked all relays and swapped them out. I have also swapped out the control box. I have performed all the checks as shown in the manual and everything is OK. I am at wits end and need some advice Thanks.
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Bredie
September 25, 2012.



I would say at least the ones mentioned in your previous list of recommendations plus any others that may be of help with this problem. Thanks again.


Tiny
Bredie
Sep 26, 2012.
Let me have an email so I an send them to you.


KHLow2008
Sep 26, 2012.
My e-mail: bredie2@telkomsa. Net

Thanks.


Tiny
Bredie
Sep 26, 2012.
File has been sent to you. Hope it is helpful.


KHLow2008
Sep 26, 2012.
Thanks I will study it and try to effect checks. I do however notice that it states 'Maxima GXE' as well as '300ZX' My model is '300 SE' and I dont know if it is the same. Also numerous references to "Fig." Is there somewhere that I can view these plates/drawings?


Tiny
Bredie
Sep 26, 2012.
Should be similar no matter what the model says.

I have sent a new file with the diagrams.


KHLow2008
Sep 26, 2012.
Thanks for information. However I have again gone through the whole system and chacked every fuse, relay, switch, actuator, Sensor, pump etc and can not find the fault. What is evident is that when I switch the car on and switch the ASCD main switch on and off one can clearly hear the relay under the hood swtched on (Activated) and off (deactivated. It seems the problem lies beyond this point in the system.

There is one item that I can not identify from the repair manual and no one can tell me what it is and what it does. It looks like a small relay but has only two connectors. There is no continuity when tested with a meter. It is connected to the sysyem with a Pink and a Red wire. Could it be faulty? See my attached photos


Tiny
Bredie
Oct 8, 2012.
The schematic does not show any connectors for a Pink and Red wire. The component you have shown seems like a Diode. Did you test for continuity by reversing the polarity of the ohm meter?

If you have gone through the repair procedures, you should have come to a conclusion, I don't understand why you can't find the fault. A certain result should be be wrong or it tells you to replace the control module.


KHLow2008
Oct 8, 2012.
I have given up in disgust with the cruise control. You were right in your assesment that the 'unidentified' unit was a diode. It works in the door entry light system However I have another request please. Have you got a schematic drawing that shows the assemly breakdown of the air (throttle) control valve return spring assembly. Thanks (See image)


Tiny
Bredie
Oct 24, 2012.
Thanks I have sorted out the assembly and car is running fine. Regards


Tiny
Bredie
Oct 24, 2012.
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