2005 TOYOTA AVENSIS Service Repair Manual

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Page 4513 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual C90646
(+)
( − )
Shift Solenoid Valve DSL:
05
−588−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
3 INSPECT SHIFT SOLENOID VALVE(DSL)
(a) Remo

Page 4514 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−582− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
DTC P0741TORQUE CONVERTER CLUTCH SOLENOID
PERFORMANCE (SHIFT SOLENOID VALVE
DSL)
SYSTEM DESC

05−582− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
DTC P0741TORQUE CONVERTER CLUTCH SOLENOID
PERFORMANCE (SHIFT SOLENOID VALVE
DSL)
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, Air−flow meter, turbine (input) speed sensor,
intermediate (counter) shaft speed sensor and crankshaft position sensor to monitor the engagement condi-
tion of the lock−up clutch.
Then the ECM compares the engagement condition of the lock−up clutch with the lock−up schedule in the
ECM memory to detect a mechanical problems of the shift solenoid valve DSL, valve body and torque con-
verter clutch.
DTC No.DTC Detection ConditionTrouble Area
P0741
Lock−up does not occur when driving in lock−up range (normal
driving at 80 km/h[50 mph]), or lock−up remains ON in lock−
up OFF range (2−trip detection logic)
SShift solenoid valve DSL remains open or closed
SValve body is blocked
SShift solenoid valve DSL
STorque converter clutch
SAutomatic transaxle (clutch, brake or gear etc.)
SLine pressure is too low
SECM
MONITOR DESCRIPTION
Torque converter lock−up is controlled by the ECM based on speed sensor (NT), speed sensor (NC), engine
rpm, engine load, engine temperature, vehicle speed, transmission temperature, and gear selection. The
ECM determines the lock−up status of the torque converter by comparing the engine rpm (NE) to the input
turbine rpm (NT). The ECM calculates the actual transmission gear by comparing input turbine rpm (NT) to
counter gear rpm (NC). When conditions are appropriate, the ECM requests ”lock−up” by applying control
voltage to shift solenoid DSL. When the DSL is turned on, solenoid DSL applies pressure to the lock−up relay
valve and locks the torque converter clutch.
If the ECM detects no lock−up after lock−up has been requested or if it detects lock−up when it is not re-
quested, the ECM interprets this as a fault in the shift solenoid valve DSL or lock−up system performance.
The ECM will turn on the MIL and store the DTC.
Example:
When any of the following is met, the system judges it as a malfunction.
(a) There is a difference in rotation between before and after torque converters even when the ECM com-
mands lock−up.
(Engine speed is at least 75 rpm greater than input turbine speed.)
(b) There is no difference in rotation between before and after torque converters even when the ECM com-
mands lock−up off.
(The difference between engine speed and input turbine speed is less than 35 rpm.)
05JLJ−01

Page 4515 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual G23400G29214
Accelerator Pedal
Opening Angle
Lock−up OFF
Lock−up ON
time Engine Speed
Accelerator Pedal
Fully Released
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−5

Page 4516 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual G26426DSL
Transmission Wire Side:
(Connector Front View):E1
C82158C9 1565
DSL
E 13E 12E 11E10E9
ECM:
05 −584−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Suppleme

Page 4517 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual C90646
(+)
( − )
Shift Solenoid Valve DSL:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −585
AVENSIS Supplement (RM 1045E)
4 INSPECT SHIFT SOLENOID VALVE(DSL)
(a) Re

Page 4518 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−580−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
DTC P0724 BRAKE SWITCH ”B” CIRCUIT HIGH
CIRCUIT DESCRIPTION
The purpose of this circ

Page 4519 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual E65594
Free Pushed in2
3
4 1
G26289
STP(+)
E
13E 12E 11E10E9
ECM:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −58 1
AVENSIS Supplement (RM 1045E)
INSPECTION PROCEDURE

Page 4520 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual G31161
THO
E2 BRE12
28 32
7 E1
Electronically Controlled
Transmission Solenoid
E13 O
1
OVECM
E2 THO5V 05−574
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement

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