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2005 trailblazer cruise control not working or the cruise control light not working

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  • Brett Duxbury
    Brett Duxbury Dec 24, 2016

    Hi John Stark, we want to help you with your question, but we need more information from you. Can you please add details in the comment box?
    can you check the brake switch wires have the cruise control sense wires connected properly. And check the brake light globes are ok.

  • poontanger Dec 24, 2016

    Brake light switch. Cheap and easy to replace.

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  • Cars & Trucks Master
  • 12,174 Answers

Which engine does your trailblazer have 5.3 or 4.2 L
Cruise Control Description and Operation (5.3L)
Cruise Control Description and Operation (4.2L)
makes a difference ! The best way to start diagnostic's is with a scan tool . May have DTC'S diagnostic trouble codes .
DTC P1574 Stop Lamp Switch Circuit
DTC P0568 Cruise Control Set Switch Circuit
DTC P0567 Cruise Control Resume Switch Circuit
Plus with a scan tool you can see if the cruise control switch is inputing to PCM. Data list .
The cruise control resume/accel switch is an input to the powertrain control module (PCM). The PCM uses the cruise control resume/accel switch signal circuit in order to detect when the driver has requested to accelerate the set vehicle speed or to resume the cruise control system. The PCM detects a voltage signal on the cruise control resume/accel switch signal circuit when the switch is applied. This DTC sets if the PCM senses voltage on the cruise control resume/accel switch signal circuit for longer than 90 seconds.
Cruise Control Indicator Inoperative (4.2L)
Turn OFF the ignition.
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, Command the Cruise Control Lamp Test parameter ON, in the instrument panel cluster (IPC) Output Controls.
Does the Cruise indicator illuminate in the IPC?
YES - Go to Step 3
no - Go to Step 4
3
Inspect for poor connections at the harness connector of the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 6
4
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 5
5
Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
YES - Go to Step 7
--
6
Replace the PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 7
--
7
Operate the system in order to verify the repair.
Does the system operate properly?
System OK
Go to Step 2

Cruise Control Inoperative/Malfunctioning (4.2L)

Install a scan tool.
Turn ON the ignition, with the engine OFF.
Press the cruise ON/OFF switch OFF.
With the scan tool, observe the Cruise ON/OFF switch parameter in the powertrain control module (PCM) Cruise Control Data list.
Does the Cruise ON/OFF switch parameter display OFF?

Your best bet mite be to take your vehicle to the dealer .

Posted on Dec 24, 2016

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Cruise control does not work

On my 05 Wrangler Unlt'd Ruby - The vacuum hose on the drivers side of engine had come off, which disengaged my Cruise and the actuator which determines whether my heater points to the vent, Defrost or feet. Put it back on and secure with a cable tie.

If it is like mine, you will then have idling problems, especially when coming to a stop. You will need to clean the throttle body because the engine has picked up **** through the open port while it was off. Directions for that exist on this site elsewhere.

All of these are easy - i hadn't worked on a car in >25 years and it took me 30 min.

Posted on Sep 16, 2008

  • 512 Answers

SOURCE: 2005 Jeep Wrangler Cruise Control

no fuse ...sounds like the switch may have gone bad

Posted on Nov 13, 2008

  • 22 Answers

SOURCE: MY cruise control on my 03 trailblazer ls works intermittingly

short , loose connection or relay --most likely ---those little green light flicker or come on when generally there is an intermittent short, loose connection or a relay or fuse going to fail soon
and nothing works without a good ground ---one could check if the correct voltage is reaching the cruise contol system and go from there

Just my 2 cents --wiggle the connections --gently ---the cruise control is a complicated sysytem somewhat --you may need another symptom to appear to narrow this down more
but then again --I hate Tow trucks it's a GM --SELL IT Buy a foreign car don't go to ford either

a friend of mine once told me --a 30+yrGM master mechanic that thanks to GM's faulty wiring harnesses and stuff HE will NOT ever want for work and Ford isn't any better --
Get the Toyota if you can that is --unless you are a GM Fan
then sorry my bad no insult intended --
HAWK

Posted on Apr 06, 2009

ryanlutton
  • 1142 Answers

SOURCE: where is the cruise control fuse located on 2005

I take it that it's not working? 1 thing to keep in mind...if there are any check engine codes stored in the computer, te cruise control will be disabled. When this code is cleared out, the cruise control will work again.

Posted on Apr 08, 2011

reyals_666
  • 95 Answers

SOURCE: 2005 buick lesabre cruise control doesn't work

have a look at the cruise control cable that goes next to your throttle cable next to your throttle body for looseness

Posted on Oct 10, 2012

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Cruise controlnot working


Do you have an airbag light lit ? Are your cruise control buttons on the steering wheel . If so the clock spring could have an open circuit. A clock spring is a part inside the steering column , under the steering wheel . Check out this video on clock spring .
https://youtu.be/4jv2DW39drA if no airbag light ,then probably not this part.

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What causes my cruise controll to not work intermittenly


cruise control starts working above 50kmh, so if your under that it wont work. the cruise servo may be at fault, or I have seen battery acid leak down on the vacuum lines causing cruise not to work correctly. cruise control works off of a vacuum so without it, it wont work. if the cruise light doesn't turn on when pressing the set/cruise button intermitantly it may be the switch itself that is starting to fail

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check cruise control fuse and check the brake lights see if brake light working because the brake light switch will deactivate cruise control when brakes is applied.if brake lights dont work either fuse blowed or switch bad.if all is good have vechicle code scan because cruise control control by PCM and vechicle speed sensor and thottle actuator control motor.

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I would check the turn signal switch. The cruise and turn signal are on the same switch. The brake lights go through the switch before going to the brake lights. And the turn signals don't work with the ignition off.

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I have a 2005 Trailblazer EXT. The cruise control all of a sudden stopped working and at the same time my interior light do not come on when I open the door. I am fairly certain it is a fuse. The owners...


I don't believe the two problems are related. For the interior lights check fuses #4 and #40 in the rear fuse panel. Also make sure you didn't inadvertently press the interior light disable button on the left side of the dash.
The cruise control can be disabled for several reasons, such as the check engine light being on, brake lights on continuously, vehicle speed sensor defective or a defect in the turn signal stalk. A technician with a high end scan tool can diagnose the problem easily.

Jul 21, 2011 | 2004 Chevrolet TrailBlazer

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Where is the cruise control fuse located on 2005 chev trailblazer


I take it that it's not working? 1 thing to keep in mind...if there are any check engine codes stored in the computer, te cruise control will be disabled. When this code is cleared out, the cruise control will work again.

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DO NOT DRIVE IT.....Driving it when the check engine is flashing may cause a simple problem to become a major problem if not fixed right away. Cruise control will always disable when the check engine light is on, when cleared, it will work again. Blinking light means serious malfunction, needs to be repaired right away. This can be many things, from simple multiple cylinder misfire, to something more serious.

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1 Answer

Our 2005 trailblazer's cruise control stopped working where is the fuse or does it even have oneit does not say on the fuse box lid..


Look in the owners manual. If you don't have one,how are you going to find fuses,relays,bulbs and know what check light are for?

Helm.Com- to buy one

May 27, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

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for parking brake and abs check for parking brake switch operation, for abs check with scan tool for any trouble code, for your cruise control unit check for any broken vacumm hoses on the engine, for the ac fan, check the fan motor, relay or fuse.

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