Mfi System Check Procedure; Engine Control Module (Ecm) Terminals - Toyota 22R-E Service Manual

EG2–184

Engine Control Module (ECM) Terminals

Terminal Name
Symbol
DISTRIBUTOR
DISTRIBUTOR
DISTRIBUTOR
DISTRIBUTOR
IGNITER
VEHICLE SPEED SENSOR
TCM SOLENOID
PARK/NEUTRAL POSITION SWITCH
TCM SOLENOID
PARK/NEUTRAL POSITION SWITCH
TCM SOLENOID
PARK/NEUTRAL POSITION SWITCH
TCM SOLENOID
TRANSFER POSITION SWITCH
VSV (for EG R)
IGNtTER
COLD START INJECTOR
VSV (for EG R)
HEATED OXYGEN SENSOR
VSV (for PAIR)
ENGINE GROUND
VSV (for A/C)
INJECTOR
INJECTOR
ENGINE GROUND
ENGINE GROUND
*1: A/T only *2: 4WD A/T only *3: California only *3: California and C & C
Engine Control Module (ECM) Terminals
ENGINE – MFI SYSTEM

MFI SYSTEM CHECK PROCEDURE

HINT:
Perform all voltage measurements with the con–
nectors 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 (110 kW/V
minimum), measure the voltage at each terminal of
the wiring connectors.
Terminal Name
Symbol
VOLUME AIR FLOW METER
SENSOR GROUND
VOLUME AIR FLOW METER
HEATED OXYGEN SENSOR
INTAKE AIR TEMP. SENSOR
THROTTLE POSITION SENSOR
ENGINE COOLANT TEMP. SENSOR
THROTTLE POSITION SENSOR
KNOCK SENSOR
EGR GAS TEMP. SENSOR
HEATED OXYGEN SENSOR
T/F FLUID TEMP. SENSOR
4WD OIL TEMP. SENSOR
D LC1
D LC 1
DLC1
Symbol Terminal Name
BATTERY B+
EFI MAIN RELAY
EFI MAIN RELAY
A/T OIL TEMP. WARNING LIGHT
SENSOR GROUND
MALFUNCTION INDICATOR LAMP
O/D MAIN SWITCH
STOP LIGHT SWITCH
PATTERN SELECT SWITCH
4WD SWITCH
A/C AMPLIFIER
VEHICLE SPEED SENSOR
DLC1
A/C MAGNET SWITCH
CRUISE CONTROL ECU
STARTER SWITCH
*4: 4WD only *5: California 2WD only