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Re: 02 echo ac issue
I assume that the 7.5 amp fuse blew again, yes? If so, it looks like you may have a locked up A/C compresser, or too much freon in the system (if somebody tried to add some to make the A/C come on). If the compressor is locking up, the engine will turn slow, at least until the drive belt or the fuse fails.
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I would trace the fault first. Could be a shorted chafed wire. Could be the motor, not very likely though, they usually go open circuit, unless you mean the compressor in which case it could be jammed.
when a fuse keeps blowing it can only be one of two causes. either the consumer is loading the circuit too much due to a bearing problem or rusty component, or there could be a short circuit to ground. disconnect the blower motor plug connector and turn your a/c on like normal. if it blows the fuse again, replace the blower fan motor. if not, start checking the wiring for any exposed copper that might touch the ground-negative.also inspect all the plug connectors for water damage and corrosion.
Inside your instrument fuse panel look for fuse #31 which powers up the light control module and the main light switch, also while there be sure and check fuses 1, 3, 5, 7, and 9 to be sure they're not blown.
For the New Body style 2004 ( not a Heritage or Lightning model )
If both Stop / Turn pins & the parking lamps, might want to check the ground pin to make sure it is good ( or what you are using for ground on the test light / meter ).
The trailer tow parking lamp circuit is fuse #10 to the parking lamp relay
The stop / turn circuits also have fuses on each one, Fuse #36 & Fuse # 42 ( R & L ).
The 7 pin has fuses for the battery charge pin ( hot in run position ) and the reverse circuit ( hot in run & when in reverse ), Reverse is also fuse # 10 to the trailer tow reversing lamp relay & the battery charge pin is fuse # 106 to the trailer tow battery charge relay.
Could be all the fuses are blown, or what you are using for ground on the meter / test light is not a good ground.
If the left turn signal blinks fast and the rear one does not light up (working in a dealership i see this All the time) almost always it is dew to one of the other bulbs that is burned out. in your case the LF one works fast and the LR one is out. You say you already replaced the bulb- but i would recheck that area again-make sure the bulb you installed was the correct one- it should most likely be a 3157 or 1157 bulb- but i dont know off hand it may be a 3156 or a 1156 bulb. If it is the right bulb make sure it is not blown itself.- make sure you did not accidently install the bulb backwards. finally check the socket- make sure it is free from corrosion and make sure the metal is making contact with the bulb. I hope this works. check if there is power ond ground going to the socket if not with a test light to make sure you dont have a broken wire. This failure will not be caused by a blown fuse.
This seems to be a common problem with this series of radio. If you
open the drivers door and pop the fuse panel cover off the side of the
dash, then locate fuse number 42 ( should be 25 amp). Remove the fuse,
check to see if it is blown(it usually isn't), if it isn't blown leave it out for
about 30 seconds to 1 minute and then reinstall. Hope this helps it
worked on my 02 Jetta TDI.
Take all the fuses out and check them one by one and re install them and replace the blown fuse .
Tap on the relays to unstuck them .
Clean the batery terminals with sand paper .
Check the rear light and brake bulbs and sockets.