Toyota 2004 CELICA Electric Troubleshooting Manual page 85

ENGINE CONTROL (2ZZ-GE)
SERVICE HINTS
E8 (E), E9 (F), E10 (G), E11 (H), E12 (I) ENGINE CONTROL MODULE
BATT-E1 : Always 9.0- 14.0 volts
+B-E1 : 9.0- 14.0 volts (Ignition SW at ON position)
VC-E2 : 4.5- 5.5 volts (Ignition SW at ON position)
VTA-E2 : 0.3- 0.8 volts (Ignition SW ON and throttle valve fully closed)
3.2- 4.9 volts (Ignition SW ON and throttle valve open)
THA-E2 : 0.5- 3.4 volts (Ignition SW ON and intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 1.0 volts (Ignition SW ON and coolant temp. 80°C, 176°F)
STA-E1 : 6.0- 14.0 volts (Engine cranking)
W-E1 : 9.0- 14.0 volts (No trouble and engine running)
STP-E1 : 9.0- 14.0 volts (Brake pedal depress)
IGT1, IGT2, IGT3, IGT4-E1 : 0.8- 1.2 volts (Engine cranking or idling)
#10, #20, #30, #40-E01, E02 : 9.0- 14.0 volts (Ignition SW at ON position)
RESISTANCE OF ECU WIRING CONNECTORS
(Disconnect wiring connector)
VTA-E2 : 3.3- 10.0 kΩ (Throttle valve fully open)
0.2- 0.8 kΩ (Throttle valve fully closed)
VC-E2 : 3.0- 7.0 kΩ
THA-E2 : 2.0- 3.0 kΩ (Intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 0.4 kΩ (Coolant temp. 80°C, 176°F)
C/OPN RELAY
5-3 : Closed with the starter cranking and engine running
EFI RELAY
3-5 : Closed with the ignition SW at ON or ST position
E6 ENGINE COOLANT TEMP. SENSOR
1-2 : 10.0- 20.0 kΩ (-20 °C, -4 °F)
4.0- 7.0 k Ω (0°C, 32°F)
2.0- 3.0 kΩ (20°C, 68°F)
0.9- 1.3 kΩ (40°C, 104°F)
0.4- 0.7 kΩ (60°C, 140°F)
0.2- 0.4 kΩ (80°C, 176°F)
: PARTS LOCATION
Code
A17 36
A18 34 (2ZZ-GE)
A19 34 (2ZZ-GE)
A22 34 (2ZZ-GE)
B6 36
C1 34 (2ZZ-GE)
C2 34 (2ZZ-GE)
C3 34 (2ZZ-GE)
C4 34 (2ZZ-GE)
C6 36
C11 36
C12 A 36
C13 B 36
D1 36
E6 34 (2ZZ-GE)
E7 34 (2ZZ-GE)
E8 E 34 (2ZZ-GE)
E9 F 34 (2ZZ-GE)
: RELAY BLOCKS
Code See Page
1 26
86
See Page Code
E10
E11
E12
F17
G2
H8
H9
I2
I3
I4
I5
I6
I7
I8
I9
I10
J1
J3
Relay Blocks (Relay Block Location)
Engine Room R/B No.1 (Engine Compartment Left)
See Page
G 34 (2ZZ-GE)
H 34 (2ZZ-GE)
I 34 (2ZZ-GE)
38
34 (2ZZ-GE)
37
37
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
35 (2ZZ-GE)
37
35 (2ZZ-GE)
37
2004 CELICA (EWD538U)
Code See Page
J6 37
J14 38
K1 35 (2ZZ-GE)
M1 35 (2ZZ-GE)
N1 35 (2ZZ-GE)
O2 35 (2ZZ-GE)
P1 35 (2ZZ-GE)
P2 35 (2ZZ-GE)
S8 37
T1 35 (2ZZ-GE)
V1 35 (2ZZ-GE)
V3 35 (2ZZ-GE)
V4 35 (2ZZ-GE)
V5 35 (2ZZ-GE)
V6 39
V7 39
V8 35 (2ZZ-GE)