Cruise Control Out - Is part available? to fix

  • Thread starter Thread starter Stanley P. Pickens
  • Start date Start date
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Stanley P. Pickens

Howdy everybody.

I've been without cruise control for @18 months for my 2001 Elantra GT -
great car. Tranny sensor went out the other day but was covered by the
drivetrain warranty - loved that. The cruise part is on Nation BackOrder?
has anybody else had this problem?

I'm at 70,000 miles. what services are critical now and is the timing belt
one of them?
 
Stanley P. Pickens said:
Howdy everybody.

I've been without cruise control for @18 months for my 2001 Elantra GT -
great car. Tranny sensor went out the other day but was covered by the
drivetrain warranty - loved that. The cruise part is on Nation BackOrder?
has anybody else had this problem?

I'm at 70,000 miles. what services are critical now and is the timing belt
one of them?
Click to expand...

The complete list of services required for your warranty and other
recommended intervals is in your owner's manual. If you don't have the
manual, it's available on-line at the Hyundai site. And yes - the timing
belt is one of them. It was due at 60,000 miles.
 
National Back Order means there aren't any in the country.

Before waiting for the dealer, check your brake lamps. If your outer two
are out, replace the bulbs.
 
hyundaitech said:
National Back Order means there aren't any in the country.

Before waiting for the dealer, check your brake lamps. If your outer two
are out, replace the bulbs.
Click to expand...

Curious...What does the brake lights have to do with the cruise?

Rob
 
The cruise module reads the voltage from the brake switch. The outboard
lamps are regular bulbs, but the high mounted stop lamp on the hatch has
LEDs. There is a bias voltage in the cruise module on the brake lamp
switch circuit, so if the bulbs are both burned out, the only path to
ground for the bias voltage is through the solid state lamp, thus making
significant a change in the voltage reading in the cruise module, and
confusing it to the point where it'll disable cruise.

This is one of those things I learned the hard way. I had one of these
with cruise inop and never even thought to look at the brake bulbs. Lots
of diagnosis and a cruise control module later, it still wasn't working.
I'll remember that one for a while.
 
hyundaitech said:
The cruise module reads the voltage from the brake switch. The outboard
lamps are regular bulbs, but the high mounted stop lamp on the hatch has
LEDs. There is a bias voltage in the cruise module on the brake lamp
switch circuit, so if the bulbs are both burned out, the only path to
ground for the bias voltage is through the solid state lamp, thus making
significant a change in the voltage reading in the cruise module, and
confusing it to the point where it'll disable cruise.

This is one of those things I learned the hard way. I had one of these
with cruise inop and never even thought to look at the brake bulbs. Lots
of diagnosis and a cruise control module later, it still wasn't working.
I'll remember that one for a while.
Click to expand...

I repair/build computers on the side, years ago I built one and the bios
would constantly reset. I replaced the motherboard and it did the same
thing. Well, I aint the brightest fellow but even I thought that was long
odds that two would have the exact same problem. After hours of frustration
I find a small dot of paper on the battery, not a pull tab but a little dot
covering the terminal. You had to remove the battery to remove it. A lesson
I will never forget. I check now as I'm sure if I brought my car to you with
a cruise problem you would walk to the rear and have me hit my brakes.

Rob
 
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