V40 L4-1.9L Turbo VIN 25 B4204T2 (2000)
Ignition Switch Lock Cylinder: Customer Interest
Ignition Systems - Failed Ignition Key Programming
NO: 36-45
DATE: 7-16-2004
MODEL: S/V40 MY2000-2004; S/V70 MY1999-2000; C70 MY1999-2004
SUBJECT: Failed Ignition Key Programming
REFERENCE: VADIS
DESCRIPTION:
Cases are reported that new correctly cut spare part ignition keys can't be programmed to the immobilizer ECU. VADIS may indicate that one or more
DTC's are present related to the failed programming.
The most frequent cause of failed ignition key programming is that the immobilizer ECU memory has reached its maximum capacity. The memory of the
immobilizer can be cleared by disconnecting the battery negative lead for at least one minute.
This TNN provides some guidelines on the programming of ignition keys with an integrated transponder for the S/V40 MY2000-2004, S/V70
MY1999-2000 and C70 MY1999-2004. These vehicles have a similar immobilizer system and ignition key with integrated transponder.
SERVICE:
Establish the correct vehicle profile, and order the ignition key application software according to the established routine in VADIS.
Obtain radio code.
Disconnect the battery negative lead as described in VADIS Information Manager, Function Group 3, for at least one minute.
Complete the procedure by reconnecting the battery negative lead, downloading the software and programming the key.
Additional tips on ignition key programming
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If you plan to program more than one key and one of the keys fails, perform the battery reset procedure as mentioned above and try to program the
key again.
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To avoid interference, no other ignition key should be near the ignition key being programmed.
