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05L47--02
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DIAGNOSTICS
MULTI--MODE MANUAL TRANSMISSION SYSTEM
05--219
COROLLA Supplement (RM1129E)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuit for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
Inspect the ”Fuse” and ”Relay” before confirming the suspected areas as shown in the chart below.
Inspect each suspected area for the corresponding symptom in numerical order.
NOTICE:
When removing the following parts, perform the operations correctly by following the precautions
on the relevant pages.
Symptom
Suspected Area
See page
No up--shift
No down--shift
1. Transmission
2. Clutch disc (Clutch disc cover)
3. Clutch stroke sensor
4. Clutch actuator assy
5. Shift stroke sensor
6. Select stroke sensor
7. Shift and select actuator
8. Shift lever position sensor
9. Shift lever assy
10.Speed sensor
11.Transmission control ECU
L
1
42--29
42--23
42--20
41--25
41--27
L
1
Multi--mode manual transmission warning light is defective.
1. Multi--mode manual transmission warning light circuit
2. IG signal circuit
3. ECU power source circuit
4. Transmission control ECU
Shift position indicator light is defective.
1. Multi--mode manual transmission warning light circuit
2. IG signal circuit
3. Transmission control ECU
DTC check cannot be performed.
1. Multi--mode manual transmission warning light circuit
2. TC terminal circuit
Transmission control ECU buzzer does not sound when an incor-
rect operation occurs. (Built in ECU)
1. Transmission control ECU
Multi--mode manual transmission system buzzer does not sound
when an incorrect operation occurs. (Built in combination meter)
1. Multi--mode manual transmission warning light circuit
(Buzzer in combination meter)
2. IG signal circuit
3. Transmission control ECU
Unable to shift to any gear.
1. Transmission
2. Shift stroke sensor
3. Select stroke sensor
4. Shift and select actuator
5. Shift lever position sensor
6. Clutch disc (Clutch disc cover)
7. Clutch stroke sensor
8. Clutch actuator assy
9. Transmission control ECU
L
1
L
1
41--11
42--29
42--23
42--29
41--33
It takes too much time to change gear position.
1. Transmission
2. Clutch disc (Clutch disc cover)
3. Clutch stroke sensor
4. Clutch actuator assy
5. Shift stroke sensor
6. Select stroke sensor
7. Shift and select actuator
8. Shift lever position sensor
9. Shift lock solenoid circuit
10.Shift lever assy
11.Speed sensor
12.Transmission control ECU
L
1
42--29
42--23
42--20
41--25
41--27
L
1
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E