Toyota 2GR-FE Manual page 196

ES–40
ES
Symbols (Terminal No.)
+B (A55-2) - E1 (C55-81)
+B2 (A55-1) - E1 (C55-81)
BATT (A55-20) - E1 (C55-81)
VPMP (A55-42) - E1 (C55-81)
MPMP (A55-34) - E1 (C55-81)
MPMP (A55-34) - E1 (C55-81)
+BM (A55-3) - E1 (C55-81)
MREL (A55-44) - E1 (C55-81)
IGSW (A55-28) - E1 (C55-81)
FC (A55-7) - E1 (C55-81)
FC (A55-7) - E1 (C55-81)
STP ( A55-36 ) - E1 (C55-81)
STP (A55-36) - E1 (C55-81)
ST1- (A55-35) - E1 (C55-81)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
TERMINALS OF ECM
1. SFI SYSTEM
C55
HINT:
The standard normal voltage between each pair of the
ECM terminals is shown in the table below. The
appropriate conditions for checking each pair of the
terminals are also indicated.
The check results should be compared with the standard
normal voltage for that pair of terminals, listed in the
"STD Voltages" column.
The illustration above can be used as a reference to
identify the ECM terminal locations.
Wiring Colors Terminal Descriptions
R - W-B Power source of ECM
R - W-B Power source of ECM
Battery (for measuring the
Y - W-B battery voltage and for the
ECM memory)
Vent valve operation
W - W-B signal (built into pump
module)
Vacuum pump operation
G - W-B signal (built into pump
module)
Vacuum pump operation
G - W-B signal (built into pump
module)
Power source of ETCS
LG - W-B
throttle motor
O - W-B EFI relay operation signal
Y - W-B Ignition switch signal
FC (A55-7) - E1 C/OPEN relay operation
(C55-81) signal (fuel pump control)
FC (A55-7) - E1 C/OPEN relay operation
(C55-81) signal (fuel pump control)
- W-B Stop light switch signal
- W-B Stop light switch signal
Stop light switch signal
GR - W-B
(opposite to STP terminal)
A55
Conditions
Ignition switch on (IG)
Ignition switch on (IG)
Always
Ignition switch on (IG)
Vacuum pump OFF
Vacuum pump ON
Always
Ignition switch on (IG)
Ignition switch on (IG)
Ignition switch on (IG), Engine
stopped
Ignition switch on (IG), Engine
idling
W-Brake pedal depressed
W-Brake pedal released
Ignition switch on (IG), W-Brake
pedal depressed
A107881E29
STD Voltages
9 to 14 V
9 to 14 V
9 to 14 V
9 to 14 V
0 to 3 V
9 to 14 V
9 to 14 V
9 to 14 V
9 to 14 V
9 to 14 V
0 to 1.5 V
7.5 to 14 V
Below 1.5 V
Below 1.5 V