Toyota Celica 2005 Repair Manual page 239

DI−40
TERMINALS OF ECM
ECM Terminals
E5
Each ECM terminals standard normal voltage is shown in the table below. In the table, first follow the informa-
tion under "Condition".
Look under "Symbols (Terminals No.)" for the terminals to be inspected.
The standard normal voltage between the terminals is shown under "STD Voltage".
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)
BATT (E2 − 1) − E1 (E4 − 17)
FC (E2 − 3) − E1 (E4 − 17)
PTNK (E2 − 4) − E1 (E4 − 17)
IGSW (E2 − 8) − E1 (E4 − 17)
W (E2 − 15) − E1 (E4 − 17)
+B (E2 − 16) − E1 (E4 − 17)
STP (E3 − 6) − E1 (E4 − 17)
F/PS (E3 − 8) − E1 (E4 − 17)
VSV (E3 − 9) − E1 (E4 − 17)
STA (E3 − 11) − E1 (E4 − 17)
HT1B (E3 − 16) − E03 (E2 − 7)
MREL (E3 − 21) − E1 (E4 − 17)
SPD (E3 − 22) − E1 (E4 − 17)
OX1B (E3 − 25) − E2 (E4 − 18)
TACH (E3 − 27) − E1 (E4 − 17)
VC (E4 − 2) − E2 (E4 − 18)
HT1A (E4 − 3) − E03 (E2 − 7)
EVP1 (E4 − 4) − E01 (E5 − 21)
VG (E4 − 11) − EVG (E4 − 1)
OX1A (E4 − 12) − E2 (E4 − 18)
THW (E4 − 14) − E2 (E4 − 18)
NE+ (E4 − 16) − NE− (E4 − 24)
2005 CELICA (RM1131U)
DIAGNOSTICS
E4
Wiring Color
W − BR Always
IG switch ON
G−R − BR
Idling
L−B − BR IG switch ON, fuel cap taken off
B−O − BR IG switch ON
Idling
R−B − BR
IG switch ON
B−R − BR IG switch ON
IG switch ON, brake pedal depressed
G−W − BR
IG switch ON, brake pedal depressed
P − BR IG switch ON
R−L − BR IG switch ON
L − BR Cranking
Idling
Y−G − W−B
IG switch ON
L−B − BR IG switch ON
W−R − BR IG switch ON, rotate driving wheel slowly
W − BR Maintain engine speed at 2,500 rpm for 2 min. after warning up
BR−W − BR Idling
R − BR IG switch ON
Idling
Y−R − W−B
IG switch ON
G−O − W−B IG switch ON
G−W − Y−G Idling, A/C switch OFF
B − BR Maintain engine speed at 2,500 rpm for 2 min. after warning up
G − BR Idling, Engine coolant temp. at 80 °C (176 °F)
O − W Idling
− ENGINE (1ZZ−FE)
Condition
238
E3 E2
STD Voltage
9 to 14 V
9 to 14 V
0 to 0.3 V
2.9 to 3.7 V
9 to 14 V
9 to 14 V
Below 3.0 V
9 to 14 V
7.5 to 14 V
Below 1.5 V
Below 1.5 V
9 to 14 V
6.0 V or more
Below 3.0 V
9 to 14 V
9 to 14 V
Pulse generation
Pulse generation
(See page DI−112)
Pulse generation
9 to 14 V
Below 3.0 V
9 to 14 V
9 to 14 V
1.1 to 1.5 V
Pulse generation
(See page DI−112)
0.2 to 1.0 V
Pulse generation
(See page DI−178)
DI37V−18
F02094