Toyota COMPUTER-CONTROLLED SYSTEM Training Manual page 34

ELECTRONIC CONTROL SYSTEM - G and NE Signal Generator s
3 G1 and G2 signals (2 pickup coils, 1 tooth) 5 G signal
( 1 pickup coil, 1 tooth )
NE signal (1 pickup coil, 24 teeth )
Engine EC U
OHP 1 8
F
G1 signal ' ~
G2 signal
720° CA
I
NE signal (1 pickup coil, 4 teeth )
Engine ECU
OHP 1 9
G signa l
NE signa l
NE signal
IVU U
U
180° CA OHP 18
4 NE signal (1 pickup coil, 4 teeth )
Engine EC U
M
1
Igniter
a
-1\
OHP 1 8
NE signal
180° CA
OHP 18
180 0
6~ NE signal (2 pickup coils, 4 teeth )
Engine EC U
NE signal
180° CA
~
720° CA
OHP 1 9
OHP 1 9
OHP 1 9
This type of circuit has two NE pickup coils
connected in series . This is for the purpose of
preventing noise in the NE signal during
operation of the ignition coil .
26