-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/25/2015 09:06 PM, jim bell wrote:
*From:* Razer <Rayzer@riseup.net> On 07/24/2015 07:25 PM, Steve Kinney wrote:
Need some volunteers and/or a funding angel to create a corpus of howto docs that identify the RF receiver parts in automotive ECM units and their associated wiring harnesses, including which pins to cut to assure radio silence in both directions.
RF sniffers are common electronic equipment. Keychain wireless networks detectors and all that. Just pay attention to where your hands wander attempting to pinpoint the rf source's location, HEI ignition systems, fan belts , whirling parts etc, maim and kill.
[ ... ] Any bench tech with access to publicly available documentation - and the physical hardware - should be able to identify the RF components in any automotive control system without too much trouble. ECM units are fairly well RF isolated, so those that talk to the world should normally have easily identified connections to external antennas. High frequency transceiver components usually have their own RF shielded areas on the board as well. Cutting one wire or IC pin per unit (antenna or IC power) should isolate it from remote access. If necessary functions fail, undo the mod and try elsewhere until the desired results are obtained. In the U.S., getting hold of ECMs to play with presents some inconveniences: Junk yards pull ECMs and sell them back to their manufacturers - some nonsense about "intellectual property" seems to be involved - so there aren't many available on the open market to play with. But where there's a will, a few dollars and a small pile of pointy tools, there's a way. :o) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVtWSRAAoJEDZ0Gg87KR0LoLkP/Rdod+ZI9btH2wCJK19VGkYy RoXdALV49AtAxMWJ+iTxVowTSNpX2aD5rCer3IAC48HbS6GWT46g0t6zwfp0gF1r Erg+Cr2ezSvzfhepcWAMGTxM6KkvkK2roDAzXW88lD5FPSNb9SWoC/MJ9qXb2VMX OZW8AIbPrcV1Q8UWChbQlI8YIASAfH0+w+EVq7oimynauwlPfBTQP365UW/aLk4Q rzanQoEOIKtwU7hWVfNBlCisLVWpQwXQiRrg3a+nTa1Px/ZeVJPiG2Kw8w3GLFJS CIoOdwVAGKeJKW4oGCmegqAIwlrqzH5Qo5LXvkGK+I5vdG8IttLeYqTksfgmkBpu p9rHr+TPTMr/4KaPDC7ZA6424B3Yf6C1pcrQ95hk5pBD5zVShroP4yYXF6rkryX4 LMKf+9pPG7uKJy9hI7c/8QnSzg55LK4h5/5kVe6dVbU4lvQIORhGFVk8pIP3HR7o N/+9Thbdk/eYk/x2iB+EcCmTSehc1elCHNrkZllzG4m0wSLXpLF5Jj0nzBZWgspP UN1QanHNOeydzgsxTOkzxHuU8RlsXxhZMUXCGP+Ynd38MuwQl+jt4SVcmTFvoC/p akEz8reODtNfVLAlCCLh1Eu7MxHRByFyV4kAkiUagAfw9JNpDzMtHycC6wqw24B0 0DNAlMG3kj/leuzF9gZS =aNZ0 -----END PGP SIGNATURE-----