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Re: Speed control not working, where is the fuse located?
There are three fuses that have to work for the cruise to operate, including the brake lights.Check fuse numbers 53,54, and 59. It can also be affected by the brake switch (and clutch switch - if equipped). The cruise also needs a connection through the brake light bulbs, which means that it will not work if the bulbs are burnt out or if you have LED tail lights. Try pulling up on the brake pedal to see if it is the brake switch. Please post your results. Thanks.
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There are three fuse's in the smart junction box , do you know where it is ? It's under the dash panel left side ! The fuse's are F2.27- 10amp , F2.32 - 10amp , F2.17 - 15 amp . They power the speed control servo ! Maybe the control switch's on the steering wheel don't work.
A little back ground on the system !
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)
Principles of Operation
The speed control system is designed to maintain vehicle a set speed above 48 km/h (30 mph). After the speed control ON switch is pressed, pressing the speed control switch SET/ACCEL will activate the speed control actuator. To increase a set speed, either press and hold for continuous acceleration, or momentarily tap the speed control switch SET/ACCEL for 1.6 km/h (1 mph) acceleration increments. To decrease a set speed, press and hold the speed control switch COAST until the target speed is reached, or momentarily tap the speed control switch COAST for 1.6 km/h (1 mph) deceleration increments. When the speed control system has been disabled by tapping the brake pedal, the speed control switch RESUME can be pressed and the vehicle will return to the original set speed if the vehicle is traveling over 48 km/h (30 mph) and the speed control switch OFF has not been pressed.
NOTE: The deactivator switch is provided as an additional safety feature. Normally, when the brake pedal is pressed, an electrical signal from the brake lamp circuit to the speed control actuator will deactivate the system. Under increased brake pedal effort, the deactivator switch will open and remove power to the speed control actuator, releasing the throttle independently of the speed control actuator.
NOTE: The clockspring 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
The outputs of the speed control actuator are:
Speed control indicator lamp
Speed control actuator cable controlling the throttle position
Inspection and Verification
NOTE: If any concerns are noted with the speedometer, stoplamps, or horn, address those concerns by referring to the appropriate sections before continuing speed control diagnosis.
Verify the customer concern by operating the speed control system.
NOTE: Any aftermarket modifications, including but not limited to those listed below, may cause the speed control to not operate correctly:
Any wiring or lamp modifications affecting the brake lamp operation
LED brake lamps
Non-factory installed trailer wiring
Radios (speed sensitive, auto mute)
Remote starters and alarms
Lighting and electrical accessory modifications
Visually inspect for obvious signs of mechanical or electrical damage:
Visually inspect the speed control actuator and accelerator controls.
Visually inspect the speed control cable without removing it and ensure smooth cable operation. Inspect the speed control cable connection to the throttle body.
Visually inspect the accelerator cable without removing it and ensure smooth cable operation. Inspect the accelerator cable connection to the throttle body. Also check for cable interference with the carpet, bulkhead grommet, insulation and instrument panel wiring.
Visually inspect for obvious signs of mechanical and electrical damage.
I believe these are found in the Power Distribution Box located under the hood towards the front of the engine compartment.
There's a Low Speed Fan Relay (24) and
A High Speed Fan Relay (32) with
A 40A Fuse (9) that controls both Relays.
I hope this helps.
I suggest check in the Passenger Compartment Fuse Panel the position 28, 15AMP for Brake Shift Interlock, DRL Relay Coil, Speed Control Module, Backup Lamps, Trailer Tow Backup Lamp Relay Coil, Electronic Shift On The Fly Hub Lock Solenoid, Vacuum Pump Motor...
The fuse panel is located below and to the left of the steering wheel by the brake pedal. Remove the panel cover to access the fuses.
There is a resistor located by the blower. It's purpose is to control the lower speeds. If you get the high speed and no lower speeds I would replace it. But if you are not getting any speeds then look at the control panel. I believe in yours you can replace just the speed switch and not the whole control panel.
2001 Pontiac Grand Am 2.4L SFI DOHC 4cyl Vehicle Speed Sensor - Location: The speed sensors are built right into the wheel bearings of your vehicle, at the front and rear locations. They work
both with the anti-lock brakes and with the traction control systems on
I hope help you with this (remember rated this help) Have a nice day, good luck.
Speed control for the ac blower motor is maybe transistorized and has been shorted. Take that speed control out or unplug it. It is usually located on the blowere housing itself. If the fuse stops blowing when you unplug that speed control then it is the problem. Anyways the speed control may have three or more wires going into it. Comment back on it and I will try to help you on this one.
Sounds like a short circuit here ? You will need to locate the short circuit . Most probable is the tail lamps and their connections , then number plate lights , then any hinged wiring going from body to a door or trunk (ie No plate illum lights) area . Sometimes the dash dimmer can be a problem . Good luck
Fuse is marked "ASC" 10A Speed Control (passenger compartment fuse box), most likely this will not be the problem, and if th fuse blew then there is a short and it won't work, the most common cause is the cruise control switch circuit.
Which fuse are you looking for? There are six fuse panels for an E39 BMW Fuses F1 - F45, fuse panel 1, glove compartment. Twist white plastic retainers 90 degrees and pull down from top of glove compartment. Fuse 22 (30 amp) is aux fan high speed relay(K22) Fuse 7 (20 amp) is engine cooling fan normal speed relay(K21)