Toyota Corolla (E120): Inspection procedure
1 Check operation(overdrive)
- Drive the vehicle after the engine warms up.
- check that overdrive on e off occurs by an operation of the o/d switch on–off.


2 Inspect terminal voltage(od)

- Remove the cruise control ecu assy with the connector still connected.
- turn the ignition switch to on.
- disconnect the cruise control ecu assy connector.
- measure voltage between terminal 14 (od) of harness
side connector of cruise control ecu assy and body
ground.
Ok: voltage: 10 – 14 v


3 Inspect terminal voltage(ect)

- Connect the cruise control ecu assy connector.
- perform the test drive after engine warms up.
- check voltage between terminal 6 (ect) of cruise control
ecu assy connector and body ground when o/d switch
is on and off.
Ok:



4 Check harness and connector(between cruise control ecu assy and electronically controlled transmission solenoid)
- Check for open and short circuit in harness and connector between cruise control ecu assy and electronically controlled transmission solenoid


Check and replace cruise control ecu assy
5 Check harness and connector(between cruise control ecu assy and ecm)
- Check for open and short circuit in harness and connector between cruise control ecu assy and ecm


Check and replace cruise control ecu assy
Other materials:
Outside temperature display
The temperature display shows temperatures within the range of -40°F (-40°C)
to 122°F (50°C).
► Type A
► Type B
► Type C
► Type D
■The outside temperature is displayed when
►Vehicles without a smart key system
The engine switch is in the “ON ...
Dtc check/clear
1. Dtc check (normal mode)
Notice:
hand–held tester only:
when the diagnostic system is switched from the normal
mode to the check mode, all the dtcs and freeze frame
data recorded in the normal mode will be erased. So before
switching modes, always check the dtcs and freeze frame
data, and ...
Thermostat
Replacement
1. Remove engine under cover rh
2. Drain coolant
3. Remove fan and generator v belt
4. Remove generator assy
Disconnect the wire clamp from the wire clip on the rectifire
end frame.
remove the rubber cap and nut, and disconnect the alternator
wire.
d ...


