TOYOTA AVENSIS 2005 Service Repair Manual

D30684
SPT1 E1
D30684
SFTU
SFTD E1
H42585
SFTD (+)
E (±) SFTU (+)
05±974± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 CHECK ECM
(a) Turn the ignition switch to ON.
(b) Measure the voltage between terminals SPT1 and E1 of
the ECM.
OK:
Shift rangeSpecified condition
Except S positionBelow 1 V
S position7.5 to 14 V
NG Go to step 6
OK
2 CHECK ECM
(a) Measure the voltage between terminals E1 and that
SFTU as well as SFTD of the ECM.
OK:
Shift rangeTester connectionSpecified condition
Shift to º+º
(Up shift)SFTU ± E1Below 1.5 V
S positionSFTU ± E17.5 to 14 V
Shift to º±º
(Down shift)SFTD ± E1Below 1.5 V
S positionSFTD ± E17.5 to 14 V
OK NORMAL
NG
3 INSPECT SHIFT LOCK CONTROL UNIT ASSY(TRANSMISSION CONTROL
SWITCH)
(a) Turn the ignition switch to OFF.
(b) Disconnect the transmission control switch connector.
(c) Measure the resistance between terminals E and SFTU
as well as SFTD of the transmission control switch con-
nector.
OK:
Shift rangeTester connectionSpecified condition
Shift to º+º
(Up shift)SFTU ± EContinuity
S positionSFTU ± ENo continuity
Shift to º±º
(Down shift)SFTD ± EContinuity
S positionSFTD ± ENo continuity
NG REPLACE SHIFT LOCK CONTROL UNIT ASSY
OK

 
H42967
SFTUSFTD
SFTD
SFTU
E11
A
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±975
AVENSIS REPAIR MANUAL (RM1018E)
4 CHECK HARNESS AND CONNECTOR(ECM ± TRANSMISSION CONTROL
SWITCH)
(a) Disconnect the ECM connector.
(b) Check the continuity between ECM and transmission
control switch.
OK:
Tester connectionSpecified condition
SFTU (E11±22) ± SFTU (A±2)Continuity
SFTD (E11±21) ± SFTD (A±1)Continuity
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
5 CHECK HARNESS AND CONNECTOR(TRANSMISSION COTROL SWITCH ± BODY
GROUND)
(a) Check the continuity between body ground and E of the transmission control switch connector (wire
harness side).
OK:
Continuity
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
CHECK AND REPLACE ECM

H42585
IG
S

C91567
E1 (±)
SPT1 (+)
05±976± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
6 INSPECT SHIFT LOCK CONTROL UNIT ASSY(TRANSMISSION CONTROL
SWITCH)
(a) Turn the ignition switch to OFF.
(b) Disconnect the transmission control switch connector.
(c) Check the continuity between terminal IG and S of the
transmission control switch.
OK:
Shift rangeTester connectionSpecified condition
Except S positionIG ± SNo continuity
S positionIG ± SContinuity
NG REPLACE SHIFT LOCK CONTROL UNIT ASSY
OK
7 CHECK HARNESS AND CONNECTOR
(a) Connect the transmission control switch connector.
(b) Disconnect the ECM connector.
(c) Turn the ignition switch to ON.
(d) Measure the voltage between terminal SPT1 and E1 of
the ECM connector.
OK:
Shift rangeTester connectionSpecified condition
Except S positionSPT1 ± E1Below 1 V
S positionSPT1 ± E17.5 to 14 V
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
CHECK AND REPLACE ECM

G25416
ECM
KD
E10 K2
Kick Down SW
IP66
CA
1
2 CJ
IG24
W±BCenter J/B
30
8
IG2
W±B
W W W±B
05±970± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
KICK DOWN SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The kick±down switch is turned ON when the accelerator pedal is depressed to the full throttle and sends
signals to ECM.
When the kick±down switch is turned ON, the ECM controls gear shifting according to the programmed shift
diagrams.
If a short circuit develops in the kick±down switch, the ECM disregards the kick±down signals and controls
shifting at the normal shift points.
WIRING DIAGRAM
05C9J±01

D30684
KD
D02350
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±971
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT TERMINAL VOLTAGE
(a) Turn the ignition switch to ON.
(b) Measure the voltage between terminal KD of ECM and
body ground when accelerator pedal is fully depressed or
not.
OK:
Accelerator pedalVoltage
Fully depressed
(Kick±down switch is ON)Below 1 V
Released
(Kick±down switch is OFF)10 to 14 V
OK PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
NG
2 INSPECT KICK DOWN SWITCH
(a) Disconnect the kick±down switch connector.
(b) Check the continuity between terminals 1 and 2 of the
kick±down switch when kick±down switch is ON and OFF.
OK:
Kick±down switchContinuity
ONContinuity
OFFNo continuity
NG REPLACE KICK DOWN SWITCH
OK
3 CHECK HARNESS AND CONNECTOR
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
CHECK AND REPLACE ECM

D02290
Line Pressure
Control Pressure
Current Flow to Solenoid
BE4056
ON
OFF
1 cycle
D26542
E1
ECT SolenoidECM
13
SLT+ E12 P±L
2 O
12
SLT± E12 P
7 SLT+
SLT± G
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±967
AVENSIS REPAIR MANUAL (RM1018E)
DTC P2716 PRESSURE CONTROL SOLENOID ºDº
ELECTRICAL (SHIFT SOLENOID SLT)
CIRCUIT DESCRIPTION
The throttle pressure that is applied to the primary regulator
valve (which modulates the line pressure) causes the solenoid
valve SLT, under electronic control, to precisely and minutely
modulate and generate the line pressure according to the ex-
tent of the accelerator pedal depressed or the output of engine
power.
This controls the line pressure and provides smooth shifting.
Upon receiving a signal of the throttle valve opening angle, the
ECM controls the line pressure by sending a predetermined (*)
duty ratio to the solenoid valve, modulating the line pressure
and generating throttle pressure.
(*): Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle.
For example, if A is the period of continuity in one cycle, and B
is the period of non±continuity, then
Duty Ratio=A/(A+B) x 100 (%)
DTC No.DTC Detection ConditionTrouble Area
P2716
Condition (a) or (b) below is detected 1 sec. or more:
(1±trip detection logic)
(a) SLT±
terminal: 0V
(b) SLT±
terminal: 12V

Open or short in shift solenoid valve SLT circuit

Shift solenoid valve SLT

ECM
WIRING DIAGRAM
05C9I±01

D25234
SLT+
SLT±

C91565
SLT+
SLT±
05±968± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(SLT)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure the resistance between terminals SLT+ and
SLT±.
OK:
Resistance: 5.0 to 5.6 at 20
C (68
F)
(c) Measure the resistance between terminals SLT+ and
SLT± of the transmission wire connector and body
ground.
OK:
Resistance: 1M or higher
NG Go to step 3
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE ± ECM)
(a) Connect the transmission wire connector to the transaxle.
(b) Disconnect the ECM connector.
(c) Measure the resistance between terminals SLT+ and
SLT± of ECM connector.
OK:
Resistance: 5.0 to 5.6  at 20
C (68
F)
(d) Measure the resistance between terminals SLT+ and
SLT± of the ECM connector and body ground.
OK:
Resistance: 1M or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM

D25466
12
12
(+)
(±)
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±969
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT SHIFT SOLENOID VALVE(SLT)
(a) Remove the shift solenoid valve SLT.
(b) Measure the resistance between terminals of the shift so-
lenoid valve SLT.
OK:
Resistance: 5.0 to 5.6
at 20
C (68
F)
(c) Connect the positive (+) lead with a 21 W bulb to terminal
2 and the negative (±) lead to terminal 1 of the solenoid
valve connector, then check the movement of the sole-
noid valve.
OK:
The solenoid valve makes an operating noise.
NG REPLACE SHIFT SOLENOID VALVE(SLT)
OK
REPAIR OR REPLACE TRANSMISSION WIRE

D26541
C3
Counter Gear Speed
SensorECM
26
E12 NC+ LG
2
34
E12 NC± LG±B 1
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±965
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0793 INTERMEDIATE SHAFT SPEED SENSOR
ºAº
CIRCUIT DESCRIPTION
This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal (NC)
with the direct clutch speed sensor signal (NT), the ECM detects the shift timing of the gears and appropriate-
ly controls the engine torque and hydraulic pressure according to various conditions. Thus smooth gear shift-
ing is performed.
DTC No.DTC Detection ConditionTrouble Area
P0793
ECM detects conditions (a), (b), (c) and (d) continuity for 5 sec.
or more: (1 trip detection logic)
(a) Vehicle speed: 50 km/h (20 mph) or more
(b) 2nd, 3rd or O/D gear
(c) Solenoid valves and park/neutral position switch are normal
(d) NC < 300 rpm

Open or short in speed sensor (NC) circuit

Speed sensor (NC)

ECM
WIRING DIAGRAM
05C9H±01

C58536

C91565
NC+
NC±
05±966± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT SPEED SENSOR(NC)
(a) Disconnect the speed sensor (NC) connector from the
transaxle.
(b) Measure the resistance between terminals of the speed
sensor.
OK:
Resistance:
TOYOTA made: 500 to 620
at 20
C (68
F)
AISIN made: 560 to 680
at 20
C (68
F)
NG REPLACE SPEED SENSOR(NC)
OK
2 CHECK HARNESS AND CONNECTOR(SPEED SENSOR ± ECM)
(a) Connect the speed sensor (NC) connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance between terminals NC+ and
NC±.
OK:
Resistance:
TOYOTA made: 500 to 620
at 20
C (68
F)
AISIN made: 560 to 680
at 20
C (68
F)
(d) Measure the resistance between terminals NC+ and NC±
of the ECM connector and body ground.
OK:
Resistance: 1M
or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM