Question about 2003 Toyota Corolla

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How do i trouble shoot the cruise conrtol? cruise control light activates but does not hold speed

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Only one item on this car will cause this which is the cruise contro module

Posted on Jul 28, 2010

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Where can I find the cruise control fuse on a 2008 hhr


The odds of a fuse being the problem with a non operating cruise control are astronomical . Knowing how the cruise control works is a must in trouble shooting . The different modules involved ,the GMLAN serial data network etc... Here is the factory repair manual description .
Cruise Control Description and Operation
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds.
The following are the main components of the cruise control system:
?€¢
The accelerator pedal


?€¢
The brake pedal position (BPP) sensor


?€¢
The body control module (BCM)


?€¢
The cruise on/off switch


?€¢
The + RES switch (equivalent to resume/accel switch)


?€¢
The - SET switch (equivalent to set/coast switch)


?€¢
The engine control module (ECM)


?€¢
The clutch pedal position (CPP) sensor, if equipped with a manual transmission


?€¢
The throttle actuator control (TAC) motor


?€¢
The vehicle speed sensor

The body control module (BCM) monitors the signal circuit of the cruise control switches, which are located on the steering wheel. The BCM relays the cruise control switch status to the engine control module (ECM) via the GMLAN serial data circuit. The ECM uses the status of the cruise control switch to determine when to capture and maintain the vehicle speed. The ECM monitors the vehicle speed signal circuit in order to determine the desired vehicle speed. The ECM uses the TAC motor in order to maintain the vehicle speed. For further information on the TAC system, refer to Throttle Actuator Control (TAC) System Description for the 2.2L engine or to Throttle Actuator Control (TAC) System Description for the 2.4L engine.
Ignition voltage is supplied to the cruise control switch from the 2-ampere EPS fuse located in the integrated BCM fuse block. The cruise control function switches are arranged in a resistive ladder design, with each cruise control function switch having a different resistance value. The BCM detects a specific voltage value that is associated with the cruise control function switch being activated. When the normally open cruise control on/off switch is turned ON, the switch closes and the BCM sends a GMLAN serial data message to the ECM indicating that the on/off switch is active. Similarly, when the normally open + RES switch or the normally open - SET switch are pressed, the switch closes and the BCM detects the predetermined voltage signal on the cruise control switch signal circuit. The BCM sends a GMLAN serial data message to the ECM indicating that the + RES switch or the - SET switch is active. The + RES switch or the - SET switch will remain inactive when the BCM has not received the predetermined voltage signal from the on/off switch.
Unless the air bag light is lit too , your best bet would be to take your vehicle to a qualified repair shop.

Aug 09, 2016 | 2008 Chevrolet Chevrolet HHR LT

1 Answer

Where is the fuse for cruise control on a 2003 envoy


It is HVAC 1fuse #39 in the rear fuse block ,this powers the on/off switch for cruise control ! Fuse Block - Rear Beneath the left rear seat. What engine does it have ? 4.2 L or 5.3 l There is no vacuum involved in the operation of the cruise control ! Your vehicle has electronic throttle control .
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at vehicle speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds.
The following are the main components of the Cruise Control System:
?€¢
The powertrain control module (PCM)


?€¢
The On/Off switch


?€¢
The Resume/Accel switch


?€¢
The Set/Coast switch


?€¢
The TCC brake switch


?€¢
The stop lamp switch


?€¢
The throttle actuator control (TAC) motor


?€¢
The vehicle speed sensor


Cruise Control Engaged
The cruise control system will engage and adjust the vehicle speed based on the activation of the following cruise control switches:
?€¢
On/Off


?€¢
Resume/Accel.


?€¢
Set/Coast

The cruise control switches are located on the multifunction/turn signal lever.
The powertrain control module (PCM) monitors the signal circuits of the cruise control switches in order to determine when to capture and maintain the selected vehicle speed. The PCM uses the throttle actuator control (TAC) module motor in order to control the vehicle speed. For further information on the TAC System, refer to Throttle Actuator Control (TAC) System Description in Engine Controls - 4.2 L.
Ignition positive voltage is supplied from the 10 ampere HVAC 1 fuse to the cruise control switch via the ignition 3 voltage circuit. When the normally open cruise control On/Off switch is turned On, the switch closes and the PCM detects a high signal voltage on the cruise control on switch signal circuit. When the normally open Set/Coast switch is pressed, the switch closes and the PCM detects a high signal voltage on the cruise control set/coast switch signal circuit. To engage the cruise control system, turn the On/Off switch On and momentarily press the Set/Coast switch. The PCM will confirm that the cruise control enable criteria has been achieved. The PCM will engage the cruise control system and record the selected vehicle speed. The PCM sends a class 2 message to the instrument panel cluster in order to illuminate the cruise control indicator. Pressing the accelerator pedal, while the cruise control system is engaged, will allow the driver to override the cruise control system in order to accelerate the vehicle beyond the current set vehicle speed. When the accelerator pedal is released, the vehicle will decelerate and resume the current set vehicle speed. The driver can also override the current set vehicle speed via the Set/Coast switch and the Resume/Accel switch. When the cruise control system is engaged, pressing and holding the Set/Coast switch will allow the vehicle to decelerate from the current set vehicle speed without deactivating the cruise control system. When the Set/Coast switch is released, the PCM will record the vehicle speed and maintain the vehicle speed as the new set vehicle speed. When the cruise control system is engaged, momentarily pressing the Set/Coast switch will allow the vehicle to decelerate at 1.6 km/h (1 mph) increments for each time that the Set/Coast is momentarily pressed, with a minimum vehicle speed of 37 km/h (23 mph). When the normally open Resume/Accel switch is activated, the switch closes and the PCM detects a high signal voltage on the cruise control resume/accel switch signal circuit. Activating and holding the Resume/Accel switch, when the cruise control system is engaged, will allow the vehicle to accelerate to a greater vehicle speed than the current set vehicle speed. When the Resume/Accel switch is released, the PCM will record the vehicle speed and maintain the vehicle speed as the new set vehicle speed. When the cruise control system is engaged, momentarily activating the Resume/Accel switch will allow the vehicle to accelerate at 1.6 km/h (1 mph) increments for each time that the Resume/Accel switch is momentarily activated, with the maximum acceleration total of 16 km/h (10 mph) over the current set vehicle speed . Momentarily activating the Resume/Accel switch, after the cruise control system has been disengaged by pressing the brake pedal, will recall the previous set vehicle speed that is recorded in the PCM.

Sep 11, 2015 | Cars & Trucks

4 Answers

2005 Chevy trailblazer ext problems 1. Cruise will not set.worked last on 4/12/15 2. While checking fuses for CC problemdome lights stopped working, but worked fine before checking fuses. PLEASE HELP!


Bummer deal! This may be a way to tell you some tail lights are burnt out. Some cruise controls have a fuse in a second location.
The fuse is not in right or is blown. Check with a new fuse. Hope this helps. ...gc http://www.auto-tune-up-and-repair-options.com/

Apr 20, 2015 | 2005 Chevrolet Trailblazer Ext

1 Answer

How do you activate the cruise control on a Mercedes ML 270 cdi.


If you know how to set your speed limiter. To set your cruise control, press the stalk in (to the right). The orange light on your dash should go out and you're ready to set your cruise control. You can start the cruise control by either moving the cruise control stalk up or down. Once you start the cruise control you can move the stalk up or down to increase or decrease your cruise speed. You can move it toward you to shut off the cruise control. You can press it in again to go back to the speed limiter. I hope this helps.

Oct 20, 2014 | Cars & Trucks

1 Answer

Cruise control trouble shooting


The cruise control depends upon input from the speed sensor to determine when to engage. The sensor may be erratic.

Jun 26, 2014 | 2005 Mercury Mountaineer

1 Answer

How can i activate my cruise control in my 2004 grand cherokee


The cruise control switches are located on the steering wheel. When the cruise control is turned on there will be a green light luminated on the dash that says "cruise". When at the desired speed press "set" to set the cruise control at that speed.

Oct 09, 2010 | Jeep Cherokee Cars & Trucks

1 Answer

How to use cruise control


Here are the steps in using cruise control:

  1. Get on a road you will be traveling at the same speed for a long period of time, such as a freeway.
  2. Reach your desired speed. Choose a speed that allows you to move with the flow of traffic and not go over or under the designated speed limit for that road.
  3. Locate the ON and SET buttons on your steering wheel. Press ON first and SET after. Your cruise control is now activated. Most vehicles must be traveling at least 30 miles per hour to set the cruise control.
  4. Press and hold the SET button if you wish to use cruise control at a higher speed. Hold until your desired speed is reached.
  5. Decrease speed by pressing the COAST button.
  6. Push the brake pedal to disengage the cruise control function. If you wish to return to the previous set speed, use the RES (resume) button. You must be traveling at least 30 miles per hour for this function to resume.
  7. Erase any previous speed by pressing the OFF button.

Feb 11, 2010 | 2000 Nissan Maxima

1 Answer

Cruise control how to use


Most cruise controls are designed to disengage when you press the brake pedal. I always mention this first because people tend to try to press the clutch pedal while the cruise control is engaged and this startles them when the engine revs up all the way...

Anyway, to use your cruise control:

1) Press the Cruise control button to on.
2) Drive up to the speed you need to go.
3) Press the "Set/Coast" button.
4) let go of the accelerator pedal

If the cruise control system is operating correctly, your vehicle will continue to travel at the same speed until you either press the brake pedal or you cancel the cruise setting with the cancel button of the cruise control.

Remember: Your civic is not equiped with a radar system for your cruise control, so if you are aproaching an intersection or traffic in front of you, do not expect the car to know it needs to stop. Also, cruise control only operates the accelerator pedal i your car, it is not autopilot, so it will not steer your car for you.

(you think it sounds silly that I am writing this? You should see my friend's car... He thought Cruise control was like autopilot, so he smashed his brand new civic into a tree...)

Happy Motoring!

May 21, 2009 | 2002 Honda Civic

3 Answers

1991 Celica GTS Cruise Control Problem


You may have a faulty brake lamp switch at the brake pedal. If the brake lights come on (via a bad switch), the cruise will cut off.

Aug 18, 2008 | 1991 Toyota Celica

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