Question about 2005 Ford Crown Victoria

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Cruise control not working

Where would the speed control deactivation switch be located and/or what else would cause this problem

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Check the redundant brake pedal pressure switch, located under the dash, it's blue, common problem.

Posted on Jan 05, 2009

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The switch is located on the lower side of the master cylinder.It has two wires in the plug. Check for brake fluid seeping through it. The wires are LB/BK and OG. Also check the fuses in the fuse box under the dash. Fuse #5 is a 10 amp fuse that feeds this circuit.Hope this helps.

Posted on Aug 31, 2008

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1 Answer

Where is the cruise control fuse located?


In the SJB - smart junction box , Under the dash ! There are three fuse's - F2.27 10amp - F2.32 10amp - F2.17 15amp . Is your air bag light lit ?
SECTION 310-03: Speed Control 2004 Taurus/Sable Workshop Manual DESCRIPTION AND OPERATION Procedure revision date: 07/02/2003 Speed Control The vehicle speed control system consists of the following components:
  • Brake pedal position (BPP) switch
  • Speed control actuator cable
  • Speed control switches
  • Speed control deactivator switch
  • Speed control indicator
  • Speed control actuator
  • Smart junction box (SJB)
NOTE: The clock spring provides the electrical interface between the steering column wiring and the speed control switches in the steering wheel.
The inputs to the speed control actuator are:
  • Vehicle speed signal
  • Speed control switches
  • Brake pedal position (BPP) switch
  • Deactivator switch
The outputs of the speed control actuator are:
  • Speed control indicator lamp
  • Speed control actuator cable controlling the throttle position

Apr 01, 2016 | 2004 Ford Taurus

1 Answer

2007 Ford five hundred cruise control turns off when you hit a bump


First off the cruise control is computer controlled , need to check for diagnostic trouble code's . Your vehicle has electronic throttle control also . If your don't have a factory or professional grade scan tool your odds of being able to fix this yourself is close to zero ! You could find a wiring diagram an do some voltage drop testing ,mite find lose connection .
Speed Control
The speed control system consists of the following components:
  • Speed control switches
  • Speed control deactivator switch
  • Speed control indicator
  • Powertrain control module (PCM)
  • Electronically controlled throttle body
  • Clockspring
The speed control system is controlled by the PCM. The speed control system is designed to maintain a selected vehicle speed between 48 and 200 km/h (30 and 124 mph). The speed control system is controlled by the steering wheel mounted switches (ON, OFF, SET+, SET-, CANCEL, and RESUME), and the brake pedal. The steering wheel mounted switches are hardwired to the PCM.
The speed control functions include:
  • Turning the speed control system on.
  • Setting and maintaining the desired vehicle speed.
  • Accelerating the vehicle speed.
  • Decelerating the vehicle speed.
  • Resuming the prior vehicle speed.
  • Turning the vehicle speed control system off.
  • Canceling the speed control.
The clockspring provides the electrical interface between the steering column wiring and the speed control switches in the steering wheel.
The inputs to the PCM are:
  • Output shaft speed (OSS) sensor
  • Speed control switches
  • Stoplamp switch
  • Speed control deactivator switch
  • SJB messages
The outputs of the PCM for the speed control system are:
  • Speed control indicator lamp
  • Throttle command
The throttle position is completely controlled by the PCM through the electronically controlled throttle body. Speed control electronics are contained entirely within the PCM.
When the speed control system is active, the PCM corrects for deviations in the actual vehicle speed by proportionally moving the throttle plate. The PCM modulates the throttle to minimize error between actual vehicle speed and the desired speed.
The PCM strategy uses the throttle control for smooth accelerations.
The PCM sends a serial message over the controller area network (CAN) to the instrument cluster whenever the speed control telltale should be turned on or off.
In the event of an OFF command or a deactivation request from the deactivator switch, the speed control system carries out a hard deactivation and immediately returns the throttle to the idle position.
In the event of a CANCEL command input, the system deactivates and the throttle returns to the idle position at a smooth and controlled rate.
The speed control system provides self-diagnostics. The speed control system is disabled anytime an error is detected in the system. No cluster telltale or message center messages are displayed when faults occur. Fault codes are logged by the PCM.
An electronic throttle control (ETC) system fault also causes the speed control system to be disabled. In this case, an ETC system warning indicator or message center message is displayed.
Additionally, the following conditions cause the speed control system to deactivate:
  • Transmission gear selector is put into a position other than D or OD.
  • Parking brake is applied.
  • Speed control set speed is over-ridden with the accelerator pedal for a period longer than 5 minutes.
  • Vehicle speed loss from set speed of greater than 16 km/h (10 mph) occurs.
  • Vehicle speed falls below the minimum allowable limit of 48 km/h (30 mph).
  • Speed control switch is pressed or stuck longer than 2 minutes.
  • Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index DTC Description Action P0579 Cruise Control Multifunction Input A Circuit Range/Performance Go To Pinpoint Test C . P0581 Cruise Control Multifunction Circuit High Go To Pinpoint Test C . P0720 Output Speed Sensor Circuit REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. P0721 Output Speed Sensor Circuit Range/Performance REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. P1500 Vehicle Speed Error REFER to Section 307-01A or Section 307-01B . P1501 Vehicle Speed Error REFER to Section 307-01A or Section 307-01B . P1703 Brake On/Off Failure Go To Pinpoint Test B .


    Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Index DTC Description Action P0720 Output Speed Sensor Circuit REFER to Section 307-01A . P0721 Output Speed Sensor Circuit Range/Performance REFER to Section 307-01A .

Mar 04, 2016 | 2007 Ford Five Hundred Limited Sedan

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

2 Answers

Why wont the cruise control work on a 2005 ford taurus but the cruise light comes on


The first thing to check is the tail lights. The cruise control will not work if any lights are out. Changing to LED tail lights also causes the cruise to not work.

Apr 06, 2014 | 2005 Ford Taurus

1 Answer

CRUISE CONTROL WON'T WORK ON 2005 CHEVY TRAILBLAZER


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.

Apr 17, 2013 | 2004 Chevrolet TrailBlazer

1 Answer

2005 dodge stratus cruise does not work but light comes on.


first check to see if brake lights work, because brake light switch will deactivate cruis control when you press brake pedal to slow down stop.if brake light switch okay, dealership has to check out cruise control since pcm and vechicle speed sensor control the cruise control also.

Sep 21, 2012 | 2000 Dodge Stratus

2 Answers

My cruise control is not working, no lights come on and I've checked all fuses with a meter and all check good, I can't put it in gear without pushing brake so shift interlock is good, all connections...


If the CHML ( Center High Mount Stop Lamp ) is working correctly, the next thing to check is the Cruise Control Deactivation switch on the brake pedal.
6d7cc37.jpg

This is different than the Brake Pedal Position ( BPP ) Switch which is for the stop lamps, and the shift interlock.

The Cruise Control deactivation switch, and the on / set switch are the only external inputs to the Cruise Control, the PCM uses the VSS ( Vehicle Speed Sensor ) to read, set and adjust the speed ( no more vacuum items on the 04+ MY trucks )

Aug 13, 2010 | 2006 Ford F-150

1 Answer

Cruise control for 1994 mercury sable four door sedan not working


There are numerous things that can cause this. A fuse, a vacuum leak, a bad switch in the steering column. The switch in the steering column is usually the culprit but is also the hardest and most expensive to change. Best way to find out is to plug it into a computer and see if it reveals any trouble codes.
Also of the many things that can go wrong outside of replacing the servo controller.
Check the servo deactivation switch. Located on the brake pedal arm under he dash. This will require you to remove the black plastic duct fot shield to expose the under dash area. It only has 4 plastic speed grommets. You will see to switches on this brake arm.
The lower one activates the brake lights. The upper one deactivates the cruise control and is a common failure in 1998-2002 Ford mercury Crown Vics and Marquis. Remove the connector(also known as connector c223), and check the continuity of the switch opened or closed. It should change from infinite to a short using a standard voltage meter set to ohms or continuity and pushing the brake pedal.
Also Fuse number 1 (15amp blue fuse) located there under the dash as well, is the primary fuse for the cruise control servo. In most cases you will see this ok

Sep 08, 2009 | 1994 Mercury Sable

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