200 Quattro 20V Sedan L5-2226cc 2.22L DOHC Turbo (3B) (1991)
First display: "00 82" or "00 C3" Second display: "01 0A" Third display: "02 16" Fourth display: "03 F7" ESN = 820A16 F7 or C30A16 F7
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press "*" key to advance from display to display
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repeated pressing of "*" button will cycle displays (00 to 03) continuously
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write down each part of ESN (two characters) at each step
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press "# " key to exit test mode
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handset readout displays an apostrophe (') in the upper right hand corner
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switch phone OFF and remove test connector
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compare displayed ESN to ESN printed on bar-code label on rear of transceiver
If displayed ESN does not match printed ESN by one or two digits
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contact Cellular Phone Company and make arrangements to activate correct (displayed) ESN
If displayed ESN is scrambled and does not resemble printed ESN
^
replace transceiver
CAUTION
Each transceiver has its own electronic serial number (ESN). ALWAYS register a new transceiver with the Cellular Telephone Company before
placing a call.
SECURITY CODE, IDENTIFYING (DIAGNOSTIC TEST COMMAND 55 # )
Use the following procedure when phone programming is not possible due to an unknown or forgotten six-digit security code. This procedure is also
used to determine a forgotten lock code or phone number.