Toyota Celica 2005 Repair Manual page 532

TERMINALS OF ECM
E10
Each ECM terminals' standard voltage is shown in the table below. In the table, first follow the information
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 (Terminal No.)
+B (E9−1) − E1 (E12−1)
BATT (E9−3) − E1 (E12−1)
TBP (E9−4) − E1 (E12−1)
TACH (E9−5) − E1 (E12−1)
MREL (E9−8) − E1 (E12−1)
IGSW (E9−9) − E1 (E12−1)
FC (E9−10) − E1 (E12−1)
W (E9−11) − E1 (E12−1)
SIL (E9−18) − E1 (E12−1)
PTNK (E9−21) − E2 (E10−28)
VPA (E9−22) − EPA (E9−28)
VPA2 (E9−23) − EPA2 (E9−29)
VCPA (E9−26) − EPA (E9−28)
VCP2 (E9−27) − EPA2 (E9−29)
ACMG (E8−2) − E1 (E12−1)
+BM (E8−6) − E1 (E12−1)
ST1− (E8−12) − E1 (E12−1)
SPD (E8−17) − E1 (E12−1)
STP (E8−19) − E1 (E12−1)
M+ (E12−3) − E1 (E12−1)
M− (E12−2) − E1 (E12−1)
HT1B (E12−6) − E1 (E12−1)
2005 CELICA (RM1131U)
DIAGNOSTICS
E12
E11
Wiring Color
B−R − BR IG switch ON
W−L − BR Always
IG Switch ON, Disconnect vacuum hose from VSV for pressure
G−O − BR
switching valve
BR−W − BR Idling
GR − BR IG switch ON
B−O − BR IG switch ON
G−R − BR IG switch ON
R−B − BR IG switch ON
W − BR During transmission
Ignition switch ON
L−B − BR
Apply vacuum 4.0 kPa (30 mmHg, 1.18 in.Hg)
IG switch ON, Accelerator pedal released
L−Y − L−R
IG switch ON, Accelerator pedal depressed
IG switch ON, Accelerator pedal released
L−O − LG−R
IG switch ON, Accelerator pedal depressed
L−W − L−R IG switch ON
L − LG−R IG switch ON
A/C switch ON (at idling)
Y−O − BR
A/C switch OFF
W−R − BR Always
Brake pedal is depressed
R−Y − BR
Brake pedal is released
W−R − BR IG switch ON, Rotate driving wheel slowly
Brake pedal is depressed
G−W − BR
Brake pedal is released
B − BR
Idling
W − BR
Idling
Y−G − BR
IG switch ON
− ENGINE (2ZZ−GE)
Condition
531
E8 E9
STD Voltage
9 to 14 V
9 to 14 V
9 to 14 V
Pulse generation
9 to 14 V
9 to 14 V
9 to 14 V
Below 3.0 V
Pulse generation
2.9 to 3.7 V
Below 0.5 V
0.3 to 0.9 V
3.2 to 4.8 V
1.8 to 2.7 V
4.7 to 5.1 V
4.5 to 5.5 V
4.5 to 5.5 V
Below 3.0 V
9 to 14 V
9 to 14 V
Below 1.5 V
7.5 to 14 V
Pulse generation
(See page DI−552)
7.5 to 14 V
Below 1.5 V
Pulse generation
(See page DI−582)
Below 3.0 V
9 to 14 V
DI−333
DIAJY−03
A14471