2005 TOYOTA AVENSIS Service Repair Manual

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Page 1057 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual C58536
C95812
NT+
NT±
05±1020± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT SPEED SENSOR(NT)
(a) Disconnect t

Page 1058 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05±1018±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP1520STOP LIGHT SWITCH CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
The purpose of this ci

Page 1059 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual D26539
E1
ECT Solenoid
R
E12SLECM
13
LG
4
SL
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1015
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0773 SHIFT SOLENOID ºEº ELECTRICAL

Page 1060 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual C54864
SL
C95812SL E1
05±1016± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(SL)
(a) Disconnec

Page 1061 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual D30680
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1017
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT SHIFT SOLENOID VALVE(SL)
(a) Remove the shift solenoid valve SL.
(b) Me

Page 1062 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual D30680
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1013
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0770 SHIFT SOLENOID ºEº MALFUNCTION
(SHIFT SOLENOID VALVE SL)
SYSTEM DESCR

Page 1063 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05±1014± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT TORQUE CONVERTER CLUTCH ASSY
NG REPLACE TORQUE CONVERTER CLUTCH
ASSY
OK
REPAIR

Page 1064 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual Range
NORMALSHIFT SOLENOID VALVE
S1 MALFUNCTIONING
Solenoid valveS1 S2GearSHIFT SOLENOID VALVE
S2 MALFUNCTIONINGBOTH SHIFT SOLENOID
VALVES MALFUNCTIONINGSolenoid valve
S1 S2GearSolenoid valve
S1 S2G

Range
NORMALSHIFT SOLENOID VALVE
S1 MALFUNCTIONING
Solenoid valveS1 S2GearSHIFT SOLENOID VALVE
S2 MALFUNCTIONINGBOTH SHIFT SOLENOID
VALVES MALFUNCTIONINGSolenoid valve
S1 S2GearSolenoid valve
S1 S2GearGear when shift selector is
manually operated
D
2
1ON
ONON
OFF
OFF
OFF
OFF ON
ON
ONON
OFF
OFF OFF
ON
ON OFFON1st
2nd
3rd
O/D
1st
2nd
3rd
1st
2ndX
X
X
X
X
X
X
X
XOFF
OFF
ON
OFFOFF
OFF
OFF3rd 3rd
O/D
3rd
3rd
O/D
3rdX
X
X
X
X
X
X
X
X ON
ON OFF OFF
OFF
ON
ON2nd
2nd
2nd2nd3rd 3rd
3rd
2nd
2nd3rd 3rd 3rd
3rd
3rd 3rd
3rd
3rd
3rd
X: MalfunctionsOFF
OFF3rd
3rdON
ON
(S range)
(S range)
05±1010± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0753 SHIFT SOLENOID ºAº ELECTRICAL (SHIFT
SOLENOID VALVE S1)
DTC P0758 SHIFT SOLENOID ºBº ELECTRICAL (SHIFT
SOLENOID VALVE S2)
CIRCUIT DESCRIPTION
Shifting from 1st to O/D is performed in combination with ON and OFF operation of the shift solenoid valves
S1 and S2 controlled by ECM. If an open or short circuit occurs in either of the solenoid valves, the ECM
controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly (Fail safe func-
tion).
Fail safe function:
If either of the solenoid valve circuits develops an open or short, the ECM turns the other solenoid valve ON
and OFF to shift to the gear positions shown in the table below. The ECM also turns the shift solenoid valve
ST OFF at the same time. If both solenoids malfunction, hydraulic control cannot be performed electronically
and must be done manually.
Manual shifting as shown in the above table must be done (In the case of a short circuit, the ECM stops send-
ing current to the short circuited solenoid).
DTC No.DTC Detection ConditionTrouble Area
P0753
P0758
ECM checks for an open or short circuit in shift solenoid valve
S1 or S2 circuit when it changes
ECM records DTC P0753 or P0758 if condition (a) or (b) is
detected:
(a) When solenoid is energized, solenoid resistance is 8 or
less and it is counted
(b) When solenoid is not energized, solenoid resistance is 100
k or more and it is counted
Open or short in shift solenoid valve S1/S2 circuit
Shift solenoid valve S1/S2
ECM
HINT:
Check the shift solenoid valve S1 when DTC P0753 is output and check the shift solenoid valve S2 when
DTC P0758 is output.
05C8I±01

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