System Check Procedure (2Wd); Terminals Of Ecm (2Wd) - Toyota 22R-E Service Manual

Symbol
ENGINE GROUND
ENGINE GROUND
INJECTOR
INJECTOR
STARTER SWITCH
ENGINE GROUND
OXYGEN SENSOR (MAIN)
OXYGEN SENSOR (SUB)
EGR GAS TEMP. SENSOR
DISTRIBUTOR
IGNITER
INTAKE AIR TEMP. SENSOR
IGNITER
THROTTLE POSITION SENSOR
VOLUME AIR FLOW METER
THROTTLE POSITION SENSOR
VOLUME AIR FLOW METER
THROTTLE POSITION SENSOR
ENGINE COOLANT TEMP. SENSOR
*1: California only *2: A/T only
ECM Terminals
ENGINE

SYSTEM CHECK PROCEDURE (2WD)

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 (l0 kΩ/V
minimum), measure the voltage at each terminal of
the wiring connectors.

Terminals of ECM (2WD)

Terminal Name
– MFI SYSTEM
Symbol
SENSOR GROUND
PNP SWITCH
COLD START INJECTOR
OXYGEN SENSOR HEATER (MAIN)
OXYGEN SENSOR HEATER (SUB)
DLC 1
DLC 1
DLC 1
PAIR VALVE
FUEL PRESSURE CONTROL VSV
OD relay
EAR VSV
SPEED SENSOR
STOP LIGHT SWITCH
SENSOR GROUND
BATTERY POSITIVE VOLTAGE
MALFUNCTION INDICATOR LAMP
MAIN RELAY
MAIN RELAY
EG1–123
Terminal Name