Sony 158N5100BT Operating Instructions Manual page 31

For steering wheel remote control
operation:
ERROR: An error occurred during the function
registration.
-+
Register again from the function where the error
occurred (page 19).
TIMEOUT: The function registration failed due to a
timeout.
-+
Try completing the registration while [REGISTER]
is blinking (about 6 seconds) (page 19).
If these solutions do not help improve the situation,
consult your nearest Sony dealer.
If you take the unit to be repaired because of CD
playback trouble, bring the disc that was used at
the time the problem began.
31GB