Question about Passport 8500 Radar Detector

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It seems that the fuse in my coiled smart cord is blown. Do you know the manufacturer or have a cross reference for the fuse? It has F2A written on it.

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That fuse is a 2Amp fuse. ANY 2 Amp fuse that fits will do. Look even a single strand of wire will work in a pinch, simply twist it around body of old fuse and your good to go. As an aside here make sure you know what "Blew" the fuse before you simply "Replace it". Otherwise it will happen again. A Garage or electronics shop should have them.,

Posted on Feb 08, 2010

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I have had my 8500 about 4 years and now it does not turn on..will the led's on the power cord light up if not plugged into the unit? I have opened up the power point adapter and did not notice any fuse.. Not sure if my old model has a fuse in cord.. I have also heard there is a built battery internally of the unit??? Is this True..

Posted on Sep 04, 2010


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My marantz pm 7200 blows fuse at random on the amp stage. Lights remain on and no obvious noise from speakers, just audio cuts out when 3.15A fuse fails. Any ideas, not a speaker issue. Thanks

There are only a couple of other things that this could be. One is that you are over driving the amp. If you are sending a signal into it that is too high then it will blow the fuse. The other is that something is over heating and causing the component to fail and that blows the fuse. It still could be the speakers too. There could be a bad cross over in the speakers or there could be a thermal issue with them or the voice coil could be bad and when it gets hot it is shorting out.

Oct 30, 2014 | Audio Players & Recorders

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Horn is not functioning on my 2006 Ford Taurus. I have checked the fuses listed in the owners manual. I however can't seem to locate the Horn Relay. I found a secondary relay box stuck between the battery...

Is the air bag light lit on the instrument cluster ? The horn relay isn't under the hood in the engine compartment , it's in the SJB - smart junction box located inside the passager compartment . Under the dash panel left side . You can take the relay back to autozone because it's not the right one ! The relay is inside the smart junction box ,soldered to the printed circuit board !
Horn Horn
The vehicle is equipped with dual horns. The horns are mounted in the LF frame rail corner behind the front bumper.
The horn system consists of the following components:
  • steering wheel horn switches
  • clockspring
  • horns
  • smart junction box (SJB)
Horn Switch, Steering Wheel Mounted
The horn switches are incorporated within the driver side air bag module in the steering wheel. The switches are grounded and control the horns through the clockspring. For removal and installation of the driver side air bag module, refer to Section 501-20B .
Visual Inspection Chart Mechanical Electrical
  • Horn
  • Horn switch
  • Battery junction box (BJB) fuse 1 (60A)
  • Smart junction box (SJB) fuse 38 (15A).
  • Circuitry
  • Speed control actuator
  • Clockspring
  • SJB

Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
DTC Description Source Action B1217 Horn relay coil circuit failure Smart junction box (SJB) If the horn is inoperative, Go To Pinpoint Test A . If horns sound continuously, Go To Pinpoint Test B . B1218 Horn relay coil circuit short to battery Smart junction box (SJB) Go To Pinpoint Test A .
Any codes ?
Symptom Chart NOTE: Refer to Wiring Diagrams for connector numbers stated in the pinpoint test. Condition Possible Sources Action
  • The horn is inoperative
  • Battery junction box (BJB) fuse 1 (60A).
  • Smart junction box (SJB) fuse 38 (15A).
  • Circuitry.
  • SJB.
  • Horn switch.
  • Horn.
  • Speed control actuator.
  • Go To Pinpoint Test A .

Your best bet , take it to a qualified ford service center .

May 19, 2017 | 2006 Ford Taurus

2 Answers

2009 ford escape turn signals and brake lights work but no taillights checked bulbs look good no where in owners mannual does it list tailight fuse or location

I think your problem locating the fuse may be because Ford refers to the lights you are describing as "PARK" lamps, instead of "TAIL" lamps. The PARK fuse is Fuse #22 (15 Amp) located in the Smart Junction Box (SJB) in the center of the dash.

HINT: This same fuse also protects the circuits your front park lamps, if they are working, the fuse is not blown.

Jun 02, 2012 | 2009 Ford Escape

1 Answer

I have a sharp carousel microwave with a blown fuse can i fix this myself?

There is usually a 125V, 20 AMP line fuse inside the microwave, mounted at the point where the power cord enters the back of the unit. It will either be in line with the power cord, or on a small circuit card called a line filter. You will need to uninstall the oven (if this is an over the range model), UNPLUG it and remove the exterior case to access. The case comes off in various ways depending on manufacturer and model. Parts are available at any of the following websites: The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.

If the line fuse is blown, you can usually purchase a box of fuses at a hardware store for just a little more than what the manufacturer charges for a single fuse. 125V, 20AMP Ceramic Slow Blow fuses are recommended.

If the model number you listed this question under is correct, there are some excellent parts illustrations and a wiring diagram listed at The line fuse is listed as item 1-3 under the Oven/Cabinet parts section. FYI: If you cannot find your model number listed on some websites, use the part numbers from the Sears website as your search criteria. Some model numbers do not cross reference, but the part numbers may.
If you have any questions, or need additional assistance troubleshooting, please post and let me know. I hope you find this information helpful.

NOTE: Make sure you take any resistance readings with the microwave UNPLUGGED and the component under test isolated (removed) from the circuit. These ovens can blow a fuse by simply sitting idle. This can occur from any power fluctuations, brown outs, voltage spikes, etc. Or, it could be the symptom of a component that may have failed. If you find the internal fuse blown and replace it, only to have it blow again, you have a more significant problem than a simple blown fuse.

Nov 19, 2010 | Sharp R-303CW Convection / Microwave Oven

1 Answer

Dell 3010cn is of course a Lexmark in crappy Dell shell. But which Lexmark printer is it exactly ?

The 3010CN is Manufactured by Dell, Inc. so no affiliation with Lexmark. I know this because 1, I am in the printer service business and I have a cross reference for just about every printer made. The 3010CN has no cross reference therefor it is Made by Dell. Second the CNET review of this printer states that the Manufacturer is Dell.

Aug 25, 2010 | Dell 3010cn Laser Printer

1 Answer

Seat belt chime not working

I bet its a fuse. Look under your drivers side belly pan for a fuse box door. Pull the door open/off and look at the fuse diagram to see which one might be related to the seat belt and autol ock. Cross reference it and check the fuse to see if it isn't blown. If you dont see anything that relates to it or dont find any blown fuses, check the engine bay as often cars feature a second fuse box. Check that one for blown fuses as well. This is a very easy thing to do yourself, your randma could do it.

Mar 31, 2009 | 2003 Ford Expedition

1 Answer

Tail lights wont come one

Do you know what a smart junction box is ? This fords BCM - body control module .( computer )
The smart junction box (SJB) monitors the headlamp switch position by sending multiple voltage reference signals to the headlamp switch. When the headlamp switch is in any given position, that input signal is routed to ground.
When the SJB receives an input from the headlamp switch indicating a request for the parking lamps, the SJB energizes the parking lamp relay, which supplies voltage to the exterior lamps.

Visual Inspection Chart Mechanical Electrical
  • Headlamp switch
  • Smart junction box (SJB) fuse 4 (15A) (parking lamps)
  • SJB
  • Rear lamp assembly
  • Bulb(s)
  • Circuitry

NOTE: Make sure the headlamp switch is in the OFF position.
NOTE: Make sure the multifunction switch is in the LOW BEAM position.
  1. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
  1. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
  1. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
    • CAN or ISO circuit fault; all electronic control units no response/not equipped, refer to Section 418-00 .
    • No response/not equipped for SJB, refer to Section 419-10 .
    • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the SJB.
  1. If the DTCs retrieved are related to the concern, go to the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index.
  1. If no DTCs related to the concern are retrieved, GO to Symptom Chart .

Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1342 ECU is Faulted SJB CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved again, INSTALL a new SJB. REFER to Section 419-10 . B1578 Lamp Park Input Circuit Short to Ground SJB Go To Pinpoint Test R .
Symptom Chart
Symptom Chart Condition Possible Sources Action
  • No communication with the smart junction box (SJB)
  • Circuitry
  • SJB
  • REFER to Section 419-10 .
  • One or more parking, rear or license plate lamps is inoperative
  • Fuse
  • Circuitry
  • Rear lamp assembly
  • SJB
  • Go To Pinpoint Test Q .
  • The parking, rear or license plate lamps are on continuously
  • Circuitry
  • SJB
  • Go To Pinpoint Test R .
Do you know how to do automotive electrical circuit testing ?

Pinpoint Test Q: One Or More Parking, Rear or License Plate Lamps Is Inoperative
Normal Operation Voltage is supplied to the smart junction box (SJB) from the battery junction box (BJB) fuse 23 (60A) through circuit SBB23 (WH/RD).
When the headlamp switch is placed in the PARKING LAMPS ON position, the SJB provides a ground for the parking lamp relay coil (internal to the SJB). When the parking lamp relay is energized, voltage is sent through circuit CBP08 (GY/YE) to the rear and front parking lamps. Ground is provided to the rear parking and license plate lamps through circuit GD171 (BK/GY). Ground is provided to the front parking and side marker lamps through circuits GD121 (BK/GY), GD121 (BK/RD), GD121 (BK/YE), GD121 (GY/YE), GD123 (BK/YE) or GD123 (BK/GY).
    Possible Causes
  • Fuse
  • Circuit CBP08 (GY/YE) open
  • Circuit GD121 (BK/GY) open
  • Circuit GD121 (BK/RD) open
  • Circuit GD121 (BK/YE) open
  • Circuit GD121 (GY/YE) open
  • Circuit GD123 (BK/YE) open
  • Circuit GD123 (BK/GY) open
  • Circuit GD171 (BK/GY) open
  • Circuit SBB23 (WH/RD) open
  • Rear lamp assembly
  • SJB

Apr 25, 2017 | 2006 Ford Fusion

2 Answers

Dryer not working

Assuming the problem is associated with you changing the cord, it sounds like you have a wire crossed on the power cord. Double check how you have the cord installed first. If that is correct check your power to the dryer. Since you changed the type of cord, I assume you have had outlet replaced or have just moved to new house. If you have a fuse box instead of a breaker box, check your fuses. It takes two fuses for the dryer. If one of them blows, the motor will run but you wont get heat. The motor runs on 120 but it needs 240 for the element. I can't count how many people have bought a new dryer just to find out they only had a house fuse blown and nothing was wrong with their old dryer. If you have had wall outlet changed there could be a wire crossed in it.

Oct 05, 2007 | Roper REX3614KW Electric Dryer

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