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DIAGNOSTICS
MULTI--MODE MANUAL TRANSMISSION SYSTEM
05--181
COROLLA Supplement (RM1129E)
Component
Outline
Clutch Stroke Sensor (Clutch Actuator)
Detects the amount of the clutch stroke from rotational angle of the worm wheel in the clutch ac-
tuator and relays and sends information to the transmission control ECU in the form of feedback
signals.
LCC (Load Controlled Clutch cover)
Actuated by the clutch motor, the pressure plate height of the LCC is adjusted to a predetermined
position, in order to apply a constant load to the clutch motor.
Transmission Revolution Sensor
Detects the input shaft speed of the transaxle and outputs it to the transmission control ECU.
Pattern Select [Es] Switch
Outputs the driving pattern (Normal [E] pattern or Sporty [Es] pattern) in E--mode from the ON/
OFF condition to the transmission control ECU.
Kick Down Switch (only for LHD)
Detects beyond the full--throttle opening and outputs it to the transmission control ECU.
Neutral Position Switch
Detects the neutral position and outputs it to the transmission control ECU.
Back Up Lamp Switch
Detects the reverse position and outputs it to the transmission control ECU, and illuminates the
back--up lamps.
Stop Lamp Switch
Detects the brake pedal being depressed and outputs it to the transmission control ECU and illu-
minates the stop lamps.
Parking Brake Switch
Detects the parking brake lever being pulled and outputs it to the transmission control ECU.
Transmission Control ECU
S
Controls the multi--mode transmission system; in addition, requests the ECM to effect fuel injec-
tion control during up--shift or downshift via CAN (Controller Area Network) communication.
S
When the transmission control ECU detects a malfunction, the transmission control ECU makes
a diagnosis and memorizes the failed section. Furthermore, the multi--mode manual transmission
warning light and check engine warning light illuminate or blink to inform the driver.
Transmission Control ECU (Buzzer)
Sounds a built--in buzzer during system warning.
ECM
S
Outputs each sensor information via CAN communication to transmission control ECU.
S
Effects fuel injection control per request from transmission control ECU.
Air Flow Meter (Intake Air Temp. Sensor)
Detects the external air temperature and outputs it to the transmission control ECU via the ECM.
Accelerator Pedal Position Sensor
Detects the accelerator pedal position and outputs it to the ECM.
Crankshaft Position Sensor
Detects the engine speed and outputs it to the transmission control ECU via the ECM.
Water Temp. Sensor
Detects the water temperature and outputs it to the transmission control ECU via the ECM.
Starter Relay
The transmission control ECU restricts operation of the starter relay in accordance with the gear
position and the braking conditions, in order to control operation of the starter.
3.
MULTI--MODE MANUAL TRANSMISSION SYSTEM CONTROL
(a)
System start:
The multi--mode manual transmission system starts when the ignition switch is turned on. The shift
lever can be operated with the ignition switch on and the brake pedal depressed. The engine starts
when the ignition switch is turned on with the brake pedal depressed and the gear in neutral.
(b)
Take off/reverse control:
If the brake pedal is not depressed with the gear in 1st, 2nd, or reverse, the clutch is half--engaged,
even if the accelerator pedal is not depressed.
[Take off assist control]
If the brake pedal is not depressed with the gear in 1st, 2nd, or reverse, the clutch is half--engaged, even
if the accelerator pedal is not depressed. This will assist the vehicle in preparing to move.
The take off assist control is cancelled while the parking brake switch is on.
HINT:
When shifting to reverse at a vehicle speed of 9 km/h (5.59 mph) or more, the reverse warning buzzer
sounds, but the gear is not shifted to reverse.
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E