Mfi System Check Procedure (4Wd A/T); Terminals Of Ecm (4Wd A/T) - Toyota 22R-E Service Manual

Symbol
ENGINE GROUND
ENGINE GROUND
INJECTOR
INJECTOR
FUEL PRESSURE CONTROL VSV
PNP SWITCH
PAIR VALVE
PNP SWITCH
EGR VSV
PNP SWITCH
No.1 SOLENOID
IGNITER
No.2 SOLENOID
SPEED SENSOR
SL .SOLENOID
DISTRIBUTOR
IGNITER
OXYGEN SENSOR HEATER (MAIN)
OXYGEN SENSOR HEATER (SUB)
COLD START INJECTOR
ENGINE GROUND
DLC 1
KNOCK SENSOR
DLC 1
OXYGEN SENSOR (MAIN)
* : California only
ECM Terminals
ENGINE
MFI SYSTEM CHECK PROCEDURE (4WD
A/T)
HINT:
Perform all voltage measurements with the connec–
tors connected.
Verify that the battery voltage is 11 V or more when
the ignition switch is in "ON" position.
Using a voltmeter with high impedance (10 kW/V
minimum), measure the voltage at each terminal of
the wiring connector.

Terminals of ECM (4WD A/T)

Terminal Name
– MFI SYSTEM
Symbol
DLC 1
OXYGEN SENSOR (SUB)
EGR GAS TEMP. SENSOR
ENGINE COOLANT TEMP. SENSOR
THROTTLE POSITION SENSOR
INTAKE AIR TEMP. SENSOR
THROTTLE POSITION SENSOR
VOLUME AIR FLOW METER
VOLUME AIR FLOW METER
THROTTLE POSITION SENSOR
SENSOR GROUND
STARTER SWITCH
CRUISE CONTROL COMPUTER
SPEED SENSOR
DLC 1
4WD SWITCH
TRANSFER POSITION SWITCH
PATTERN SELECT SWITCH
STOP LIGHT SWITCH
MALFUNCTION INDICATOR LAMP
CRUISE CONTROL COMPUTER
SENSOR GROUND
MAIN RELAY
BATTERY POSITIVE VOLTAGE
MAIN RELAY
EG1–159
Terminal Name