Toyota 2004 CELICA Electric Troubleshooting Manual page 80

B- W
B- W
FROM POWER SOURCE SYSTEM
(SEE PAGE 52)
10A
STOP
2 IK
G- W
9 IK
2
6 IB
1
G- W
19
STP
MOPS PSW OSW
22 I 10 I 8 I
1 1 1
2 4
H 8
+B E1
HEATED OXYGEN
SENSOR
( BANK 1 SENSOR 1 )
HT OX1A
1 3
5 EA1 8 EA1 2
E 4 H 23 H
HT1A OX1A
E 8 E
ENGINE CONTROL MODULE
EC NE+
30 I 27 G
7 EA3
EB
2004 CELICA (EWD538U)
BR
26
25
2
+B
HT2
1
EA1 10 EA3 9
6 I 29 H
HT1B
, E 9 F , E10 G , E11 H , E12
NE- G22+
34 G 27 I
E 2
2 1
1 2
* 3 : SHIELDED
2F
2F 13 2F
4
H 9
E1
HEATED OXYGEN
SENSOR
( BANK 1 SENSOR 2 )
OX1B
3
EA3 2 EA1
OX1B
I
EKNK KNK1
1 H 2 H
2
A A
A A
1
3 2B
BR
BR
(* 3)
( * 3 )
E1
1 I
A A
A A
(* 3)
( * 3 )
BR
BR
81