90 Nissan Maxima No cruise control

1990 Nissan Maxima V6, Auto. The cruise conrtol has stopped working. Any
ideals on what to check? Don't see anything disconnected.
Thanks in advance. Jim

JR wrote:
> 1990 Nissan Maxima V6, Auto. The cruise conrtol has stopped working. Any
> ideals on what to check? Don't see anything disconnected.
> Thanks in advance. Jim

First off, does the cruise light on the switch illuminate when you turn
the switch "on"? Does it remain lit while you drive and attempt to set
the cruise speed with the steering wheel "set" button? Or does it
begin to flash, and what event(s) cause it to flash?

Things to check if cruise indicator light works as it is supposed to:
*Power to the cruise actuator under the hood.
*This system has a cruise vacuum pump / solenoid assembly - get a
wiring diagram - temporarily run B+ to the B+ terminal, and ground the
other three wires to see if the pump, hold, and vent functions operate.
*Make sure the actuator moves when you power the pump and the hold
solenoid, and retracts when you either remove all power -or- ground the
vent solenoid input.
*The cruise switch has two wires going to the cruise computer. B+ on
the first wire occurs when pressing "set/coast". B+ on the second wire
is "resume/accelerate". B+ on both at the same time is "cancel". This
switch can go bad. Make sure the "set/coast" input works and the
"cancel" signal isn't stuck on.
*The brake switch can fail or be out of adjustment and cause no cruise
(telling computer that you are braking when you aren't)
*I believe there is a park/neutral input from the automatic trans; if
you have a manual trans then there is a clutch cancel switch on the
pedal braket that can fail much like the brake switch.

Toyota MDT in MO

Thanks for the info. I may need it in the future. At this point NO lights
come on. Any ideads?
Thanks, Jim
"Comboverfish" > wrote in message
ups.com...
>
> JR wrote:
> > 1990 Nissan Maxima V6, Auto. The cruise conrtol has stopped working. Any
> > ideals on what to check? Don't see anything disconnected.
> > Thanks in advance. Jim
>
> First off, does the cruise light on the switch illuminate when you turn
> the switch "on"? Does it remain lit while you drive and attempt to set
> the cruise speed with the steering wheel "set" button? Or does it
> begin to flash, and what event(s) cause it to flash?
>
> Things to check if cruise indicator light works as it is supposed to:
> *Power to the cruise actuator under the hood.
> *This system has a cruise vacuum pump / solenoid assembly - get a
> wiring diagram - temporarily run B+ to the B+ terminal, and ground the
> other three wires to see if the pump, hold, and vent functions operate.
> *Make sure the actuator moves when you power the pump and the hold
> solenoid, and retracts when you either remove all power -or- ground the
> vent solenoid input.
> *The cruise switch has two wires going to the cruise computer. B+ on
> the first wire occurs when pressing "set/coast". B+ on the second wire
> is "resume/accelerate". B+ on both at the same time is "cancel". This
> switch can go bad. Make sure the "set/coast" input works and the
> "cancel" signal isn't stuck on.
> *The brake switch can fail or be out of adjustment and cause no cruise
> (telling computer that you are braking when you aren't)
> *I believe there is a park/neutral input from the automatic trans; if
> you have a manual trans then there is a clutch cancel switch on the
> pedal braket that can fail much like the brake switch.
>
> Toyota MDT in MO
>

JR wrote:
> Thanks for the info. I may need it in the future. At this point NO lights
> come on. Any ideads?
> Thanks, Jim

Check in this order: fuses, cruise system relay, and cruise power
switch.

Toyota MDT in MO