Page 1065 of 5135
G22782
5
10P±L
PE1215
14S1
S2 E1
ECT Solenoid
S1
S2 W
BECM
E12
D25234
S1
S2
C95812
S1 S2
E1
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1011
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(S1/S2)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure the resistance between terminal S1/S2 of trans-
mission wire connector and body ground.
OK:
Resistance: 11 to 15 at 20C (68F)
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.
OK:
Resistance:
S1 ± E1: 11 to 15 at 20C (68F)
S2 ± E1: 11 to 15 at 20C (68F)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM
Page 1066 of 5135
D30679
S1
S1
S2
S2
05±1012± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT SHIFT SOLENOID VALVE(S1/S2)
(a) Remove the shift solenoid valve S1/S2.
(b) Measure the resistance between the solenoid valve con-
nector and the solenoid valve body.
OK:
Resistance: 11 to 15 at 20C (68F)
(c) Connect the positive (+) lead to the terminal of solenoid
valve connector and the negative (±) lead to the solenoid
valve body.
OK:
The solenoid valve makes an operating noise.
NG REPLACE SHIFT SOLENOID VALVE(S1/S2)
OK
REPAIR OR REPLACE TRANSMISSION WIRE
Page 1067 of 5135
![TOYOTA AVENSIS 2005 Service Repair Manual ± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1007
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0750 SHIFT SOLENOID ºAº MALFUNCTION
(SHIFT SOLENOID VALVE S1)
DTC P0755 SHIFT SOL TOYOTA AVENSIS 2005 Service Repair Manual ± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1007
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0750 SHIFT SOLENOID ºAº MALFUNCTION
(SHIFT SOLENOID VALVE S1)
DTC P0755 SHIFT SOL](/manual-img/14/57441/w960_57441-1066.png)
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1007
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0750 SHIFT SOLENOID ºAº MALFUNCTION
(SHIFT SOLENOID VALVE S1)
DTC P0755 SHIFT SOLENOID ºBº MALFUNCTION
(SHIFT SOLENOID VALVE S2)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor and speed sensor NT to detect the actual gear position
(1st, 2nd, 3rd or O/D gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect the mechanical
trouble of the shift solenoid valves, the valve body or automatic transaxle (clutch, brake or gear etc.).
DTC No.DTC Detecting ConditionTrouble Area
P0750
The gear required by the ECM does not match the actual gear
Shift solenoid valve S1 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
P0755
The gear required by the ECM does not match the actual gear
when driving (2±trip detection logic)Shift solenoid valve S2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
05C8H±01
Page 1068 of 5135
D30679
S1
S1
S2
S2
05±1008± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT SHIFT SOLENOID VALVE(S1/S2)
(a) Remove the shift solenoid valve S1/S2.
(b) Measure the resistance between the solenoid connector
and the solenoid valve body.
OK:
Resistance: 11 to 15 at 20C (68F)
(c) Connect the positive (+) lead to the terminal of solenoid
valve connector and the negative (±) lead to the solenoid
valve body.
OK:
The solenoid valve makes an operating noise.
NG REPLACE SHIFT SOLENOID VALVE(S1/S2)
OK
Page 1069 of 5135
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1009
AVENSIS REPAIR MANUAL (RM1018E)
2 INSPECT TRANSMISSION VALVE BODY ASSY(See chapter 2 in the problem
symptoms table)
NG REPAIR OR REPLACE TRANSMISSION VALVE
BODY ASSY
OK
REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSY
Page 1070 of 5135
05±1005
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0711TRANSMISSION FLUID TEMPERATURE
SENSOR CIRCUIT RANGE/PERFORMANCE
CIR TOYOTA AVENSIS 2005 Service Repair Manual C54864
THOE2
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)05±1005
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0711TRANSMISSION FLUID TEMPERATURE
SENSOR CIRCUIT RANGE/PERFORMANCE
CIR](/manual-img/14/57441/w960_57441-1069.png)
C54864
THOE2
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)05±1005
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0711TRANSMISSION FLUID TEMPERATURE
SENSOR CIRCUIT RANGE/PERFORMANCE
CIRCUIT DESCRIPTION
The ATF temperature sensor converts the fluid temperature into a resistance v\
alue which is input into the
ECM.
DTC No.DTC Detection ConditionTrouble Area
P0711
Both (a) and (b) are detected: (2±trip detection logic)
(a)After 12 sec. of engine start, temp. of atmosphere and that
of engine coolant is more than ±10 C
(b)After normal driving for over 20 min. and 10 km, ATF temp.
is less than 10 C
Open or short in ATF temp. sensor circuit
Transmission wire (ATF temperature sensor)
ECM
WIRING DIAGRAM
See page 05±1003.
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(ATF TEMPERATURE SENSOR)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure the resistance between terminals THO and E2.
OK:
Temperature: C ( F)Resistance: k
10 (50)6.4
110 (230)0.2
(c) Check the continuity between the wire harness side con-
nectors.
OK:
Standard (Check for a short):
SymbolsSpecified condition
THO ± Body groundNo continuityE2 ± Body groundNo continuity
NG REPAIR OR REPLACE TRANSMISSION WIRE
OK
05C8G±01
Page 1071 of 5135
C95813THOE2
05±1006± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
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 THO and E2.
OK:
Temperature: C (F)Resistance: k
10 (50)6.4
110 (230)0.2
(d) Check the continuity between the wire harness side con-
nectors.
OK:
Standard (Check for a short):
SymbolsSpecified condition
THO ± Body groundNo continuityE2 ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM
Page 1072 of 5135
D26545
THO E2 BR
30
V E2 E1
ECT Solenoid
E13 O
THO OECM
28
E13
6
1
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1003
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0710 TRANSMISSION FLUID TEMPERATURE
SENSOR CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
The ATF temperature sensor converts the fluid temperature into a resistance value which is input into the
ECM.
DTC No.DTC Detection ConditionTrouble Area
P0710
Either (a) or (b) is detected for 0.5 sec. or more:
(1 trip detection logic)
(c) Temp. sensor resistance is less than 79
(d) After engine has been operating for 15 min. or
more, resistance at temp. sensor is more than 156 k
Open or short in ATF temp. sensor circuit
Transmission wire (ATF temperature sensor)
ECM
WIRING DIAGRAM
0567Z±06