Lexus LFA Owner's Manual page 294

4-3. Do-it-yourself maintenance
Fuse
IG2
23
D/C CUT
24
HORN
25
ETCS-RH
26
ETCS-LH
27
BI XENON
28
292
Ampere
20 A IGN, E/G IG, ECU-IG2, GAUGE
MPX-B, DOME, P-MPX-B
20 A
(for suppressing parasitic current)
15 A Horn
Multiport fuel injection system/
10 A sequential multiport fuel injection sys-
tem
Multiport fuel injection system/
10 A sequential multiport fuel injection sys-
tem
10 A Headlight low/high beams
Circuit