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    03 MACH 1 CCRM BUZZING/ CLICKING

    Pin . . wire color . . . . . . function ================================== 1 - red / orange --- low speed fan 2 - red / orange --- low speed fan 3 - yellow / black - fused battery + 4 - yellow / black - fused battery + 5 - green / yellow - fuel pump 6 - orange / blue -- high speed fan 7 - orange...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    CCRM voltage measurements: Pin 24 (red) battery voltage with key On (PCM power) Pin 12 (red) battery voltage with key On (fuel pump relay) Pin 5 (dark green / yellow stripe) battery voltage with key On (fuel pump) Pin 23 (black / yellow stripe) ~zero (A/C compressor clutch) Pin1 or 2 (red /...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    I'm not sure if the CCRM buzz/click has anything to do with no-start, or is just a coincidence. After all, the car did start and run at least once after the clicking started. When you mentioned 12V and 12.5V, did not mean some fuses measured different than others? A difference of 0.5V with a...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    Your friend gave you some good information. Those were the correct PCM power and ground pins. So the PCM seems to have power OK. Let's start here: Does the starter motor operate and crank the engine? According to the wiring diagrams, the PCM and PATS can prevent the engine from running by...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    The linked fuse diagram matches the one in my '03 shop manual. I am posting one here for the engine compartment fuse/relay box. F2.35 and F2.41 should only have power when the brake pedal is depressed. Removing the ABS sensors should not cause your symptoms. It's interesting you were able...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    I'll admit it is possible that a new PCM/ECU will solve everything. But . . . it's an expensive part and might ot be the answer. I would at least first check all CCRM-related fuses to ensure the PCM/ECU is getting power with the key in the On position. In your first post, you reported this...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    The CCRM is basically an enclosure with relays inside. You could visualize a relay as a coupled electromagnet and switch. A relatively small current (~0.2 Amp) will activate the electromagnet which in turn operates the switch. The switch can handle 20-30 Amps (in some cases, a lot more), so...
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    03 MACH 1 CCRM BUZZING/ CLICKING

    Try those same battery voltage measurements with the headlights on. A bad connection may read normal unless a load current is flowing through it.
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    Electrical Driver's Side Door Lock

    If you bring the old and new locks to a locksmith before installing, he should be able to transfer the pins from old to new and the original key will work in the new lock.
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    Brake light issues

    Take a look at this message thread: http://www.stangnet.com/mustang-forums/threads/turn-signals-hazards-and-brake-lights-not-working.619109/
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    IGNITION PROBLEMS PLEASE HELP!!!

    The key cylinder and ignition switch are two separate parts, with a mechanical linkage between them. Since you can operate the starter with the key, I think your mechanical linkage is OK. I would go back to the original key cylinder and instead replace the ignition switch. The switch...
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    Coil pack question

    A common cause for misfire after engine cleaning is water that seeps past the rubber boots and fills up the spark plug wells. There could be 2" of standing water around some of the plugs and it can take weeks to evaporate. I usually blow it out with compressed air, but a cheap turkey baster...
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    Ignition Problems

    I have the 2001 factory service CD. The wiring diagram shows an inline connector between the PCM and spark coils 4,5,6, & 8 (there is a separate connector near the firewall for the other 4 coils). I am making a leap of faith that coil numbers and cylinder numbers match, but with Ford, who...
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    Electrical Power Window...will Not Work

    There's been at least a dozen similar complaints over the last few years. I don't know why a search wasn't more successful. In any case, before you remove the door trim, here is what has worked for most: -1- Open the door. -2- Operate the switch until you hear the "click". -3- Hold the...
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    Pass Side Window Doesn't Work From The Driver's Side

    How to check your window switch wires for breaks or poor connections. Remove the passenger-side door lock / window trim panel. Remove 2 screws and disconnect the connector from the passenger-side window switch. The window switch connector has the following wire colors: Yellow with red stripe...
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    Pass Side Window Doesn't Work From The Driver's Side

    A question: Did you actually install the complete replacement driver-side switch assembly with no change in symptoms, or did you simply swap the original left and right window switch unit in the driver side assembly? I know it sounds incredulous, but a bad the passenger door switch could be...
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    Alternator Problems

    Burns has won me over (once again). Given the history of multiple alternator replacements with no change in symptoms, his idea is more plausible than mine. Admittedly, I am grasping at straws here. I have seen some Mustang alternators with a right angle adapter that bolts to the output...
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    Alternator Problems

    I may be missing something obvious, but I can only come up with 2 possibilities. Well, perhaps 3. That the lamp turns off but the battery does not charge is an indication that the alternator is developing voltage, but charge current is not flowing. My first choice is a defect (perhaps not a...
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    Urgent! Fire! Help!

    Does this car have an aftermarket "killer stereo" installed? When pulled into a parking space, does it trip the motion sensor alarm on nearby cars? It sounds like you have unusually high alternator current demand, or the lug-to-cable connection at the alternator is corroded and/or damaged...
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    Urgent! Fire! Help!

    Good idea to increase the spacing with another nut. Looks like thee is plenty of clearance in your new pictures. Battery indicator 'on' means undervoltage, overvoltage, or no stator output from the alternator. First, look for a fuse in the box under the hood marked "ALT". I think it is 20A...
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