Page text (OCR transcript)
EG–542
ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING
WIRING DIAGRAM
B-R
Engine Control Module
GR
GR
24
B+
E10
M-REL
8
EA1
2
2
R/B No. 2
5
Main Relay
B-R
5
EA2
B-R
W
48
OX1
E9
2
3
Main Heated
Oxygen Sensor
E1
B-R
EF1 Main Relay
3
20 J1
B-R
71
HT1
E9
1
4
B-L
EO1
2
2
R-L
9
R-L
14
C1
J2
W
R-L
47
OX2
E9
Data Link
Connector 2
ENG 7
LG
R/B No. 2
4
C1
B-R
2
3
EFI No.1
E1
Sub Heated
Oxygen
Sensor
13 J1
12A
BR-W
5
72
HT2
E9
5 V
1
4
BR-W
C1
BR-W
J2
BR-W
8
W-B
4
15
LG
L3
OX1 OX2
29
VF1
E9
EO1
BR
8
BR
18
BR
C1
J1
VF1 13
Battery
BR
E1
Data Link
Connector 1
FI6918
INSPECTION PROCEDURE
HINT: When other codes are output in addition to 27 at the same time, check the circuits for other codes first.
1
Check voltage between terminal HT2 of engine control module connector
and body ground.
ON
P
(1) Connect SST (check harness "A").
(See page EG–510)
SST 09990–01000
(2) Turn ignition switch ON.
SST
ECM
C
Measure voltage between terminal HT2 of
engine control module connector and body
ground.
OK
Voltage: 9 — 14 V
B 72
HT2
BE6853
FI6948
NG
OK
Go to step 4.
