The cruise control on my Grand Am seems to be malfunctioning. I can set the cruise control at a certain speed, but it seems to go off after about a minute or so. Also, I cannot seem to get it set at certain speeds. Any idea what the first steps might be in diagnosing this problem? Thanks in advance!
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It's probably a problem with cruise control module , located under the hood in engine compartment . Or a bad connection somewhere . Do you know how to do electrical testing ? Is the air bag light lit on the instrument cluster ?
Could have DTC'S - diagnostic trouble code's stored .
The powertrain control module (PCM) inhibits cruise control operation when certain conditions are not appropriate for cruise control operation. The PCM removes the ground from the cruise control inhibit signal circuit in order to disengage cruise control operation.
Output driver modules (ODMs) are used by the powertrain control module (PCM) in order to turn on many of the current driven devices that are needed to control various engine and transaxle functions. DTC P1558 set indicates that an improper voltage level has been detected on the signal circuit which controls the cruise control inhibit circuit.
Action Taken When the DTC Sets
• The PCM will not illuminate the malfunction indicator lamp (MIL).
• The PCM will store the conditions present when the DTC set as Failure Records data only.
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions. However, steep grades may cause variations in the selected speeds. The electronic cruise control system has the capability to CRUISE, COAST, RESUME SPEED, ACCELERATE, and TAP-UP or TAP-DOWN.
The main parts of the cruise control system are:
• The cruise control module assembly
• The function control switches
• The cruise control release switch
• The clutch pedal position switch (CPP), if equipped
• The stop lamp switch assembly
• The vehicle speed sensor
The cruise control system uses the cruise control module assembly to maintain the desired vehicle cruise speed and operation. The cruise control module assembly has an electronic controller and an electric stepper motor to vary the throttle in each different cruise control mode. The electric controller monitors vehicle speed and operates the electric stepper motor. The stepper motor operates in response to the electronic controller, to maintain the desired cruise speed. The electric stepper motor moves a strap that is attached to the cruise control cable which moves the throttle linkage. The cruise control module assembly contains a low speed limit which will prevent system engagement below a minimum speed of 40 km/h (25 mph). The module assembly is not serviceable.
Cruise control only maintains speed by utilizing the accelerator. To speed up it increases it and during slowing is removes it. The cruise control will not apply brakes in the event of a steep downhill run. In this case the vehicle will start to accelerate in the same manner as if the cruise control was not engaged. But in theses cases, most cruise controls, once the speed exceeds a certain amount above the set speed, will auto-disengage as a safety feature.
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.
P0582 is the Chrysler Diagnostic Trouble Code (Error Code) for:
Speed control vacuum or vent solenoid circuits open or shorted
If you do not have cruise control on your vehicle, you can ignore this code. If you do, you've probably noticed it is no longer working or only works intermittently. The code is saying it's an electrical problem to the servo.
cruise control on your escape will work at 30 mph and up. Press 'on 'button, then press gas pedal 'til u reach desired speed, press 'set acc' and you'll be cruisen. You can also do it this way, press 'on' button, then press and hold 'set/acc' button, car will accelerate, let go of button when u reach desired speed. Putting on brakes will deactivate cruise, u can then press 'RSM' to resume speed.
Depending on the speed, there might not be a problem. All the cars that I have owned do not allow you to set the cruise control below about 35 mph. If its at a higher speed then I am not sure what the problem is and you can take it to most car repair shops to get it fixed. As far as I know there is not a high speed limit to set a cruise control (I have set them at 90mph).