2005 TOYOTA AVENSIS transmission

G20666
ON
E 13
E 12E 11E10E9
SPT 1(+)
ECM:
C82
160SFTU
E 13E 12E 11E10E9
SFTD
ECM:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −629
AVENSIS Supplement (RM 1045E)
4 CHECK HARNESS AND CONNECTOR(TRANSMISSION CONTROL SWITCH −
ECM)
(a) Connect the transmission control switch connector of shift
lock control unit assy.
(b) Turn the ignition switch to the ON position, and measure
the voltage according to the value(s) in the table below
when the shift lever is moved to each position.
Standard:
Shift PositionTester ConnectionSpecified Condition
S, ”+” and ” −”E 10 − 20 (SPT 1) −
Body ground1 0to 14V
Except S, ”+” and ” −”
Below 1 V
(c) Turn the ignition switch to the LOCK position.
(d) Disconnect the ECM connector.
(e) Measure the resistance according to the value(s) in the
table below when the shift lever is moved to each position.
Standard:
Shift PositionTester ConnectionSpecified Condition
Press continuously
”+”
(Up shift)E 10 − 22 (SFTU) −
Body groundBelow 1
S
10k  or higher
Press continuously
”− ”
(Down shift)E 10 − 21 (SFTD) −
Body groundBelow 1
S
10k  or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05 −545)

G31165
E1
Electronically Controlled
Transmission SolenoidECM
9
E12 SR
9
V
BR
−W
SR +B
CPU
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−619
AVENSIS Supplement (RM1045E)
DTC P0985 SHIFT SOLENOID ”E” CONTROL CIRCUIT
LOW (SHIFT SOLENOID VALVE SR)
DTC P0986 SHIFT SOLENOID ”E” CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE SR)
CIRCUIT DESCRIPTION
Shifting from 1st to 5th is performed in combination with ”ON” and ”OFF” operation of the shift solenoid valves
SL1, SL2, SL3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be
operated smoothly (Fail safe function).
DTC No.DTC Detection ConditionTrouble Area
P0985ECM detects short in solenoid valve SR circuit 2 times when
solenoid valve SR is operated (1 −trip detection logic)S Short in shift solenoid valve SR circuit
S Shift solenoid valve SR
S ECM
P0986ECM detects open in solenoid valve SR circuit 2 times when
solenoid valve SR is not operated (1 −trip detection logic)S Open in shift solenoid valve SR circuit
S Shift solenoid valve SR
S ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ”ON/OFF”. When there is an open or
short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and
stores the DTC. And the ECM performs the fail −safe function and turns the other shift solenoid valves in good
condition ”ON/OFF” (In case of an open or short circuit, the ECM stops sending current to the circuit.)
(see page 05 −560).
WIRING DIAGRAM
05CW5 −03

G26426
Transmission Wire Side:
(Connector Front View):SR
E1
C82158C91565
SR
E13E12E11E10E9
ECM:
05−620−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(SR)
(a) Disconnect t he t r ansm ission wir e c onnect or f r om t he
transaxle.
(b) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
9 − Body ground11 to 15

NG Go to step 3
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE − ECM)
(a) Connect the transmission connector to the transaxle.
(b) Disconnect the connector from the ECM.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
E12 − 9 (SR) − Body ground11 to 15

NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)

C90640
(+) (−)
Shift Solenoid Valve SR:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−62 1
AVENSIS Supplement (RM1045E)
3 INSPECT SHIFT SOLENOID VALVE(SR)
(a) Remove the shift solenoid valve SR.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
Solenoid Connector (SR) − Solenoid
Body (SR)11 to 15

(c) Connect positive (+) lead to the terminal of solenoid con-
nector, negative ( −) lead to the solenoid body.
OK:
The solenoid makes an operating noise.
NG REPLACE SHIFT SOLENOID VALVE(SR)
OK
REPAIR OR REPLACE TRANSMISSION WIRE (SEE PAGE 40 −1 6)

G31765
Electronically Controlled
Transmission SolenoidE12ECM
E12
L
− W
L − R 15
14
SL3+
SL3 −
4
11
R
L
E1
SL3+
SL3 − +B
CPU
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−613
AVENSIS Supplement (RM1045E)
DTC P0798 PRESSURE CONTROL SOLENOID ”C”
ELECTRICAL (SHIFT SOLENOID VALVE
SL3)
CIRCUIT DESCRIPTION
Shifting from 1st to 5th is performed in combination with ”ON” and ”OFF” operation of the shift solenoid valves
SL1, SL2, SL3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be
operated smoothly (Fail safe function).
DTC No.DTC Detection ConditionTrouble Area
P0798
ECM checks for an open or short circuit in shift solenoid valves
SL3 (1−trip detection logic)
S Output signal duty equals to 100%S Open or short in shift solenoid valve SL3 circuit
S Shift solenoid valve SL3
S ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ”ON/OFF”. When there is an open or
short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and
stores the DTC. And the ECM performs the fail −safe function and turns the other shift solenoid valves in good
condition ”ON/OFF” (In case of an open or short circuit, the ECM stops sending current to the circuit.)
(see page 05 −560).
WIRING DIAGRAM
05CW3 −03

G26426
Transmission Wire Side:
(Connector Front View):SL3−
SL3+
E1
C82158C91565SL3+
SL3−
E13E12E11E10E9
ECM:
05−614−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(SL3)
(a) Disconnect t he t r ansm ission wir e c onnect or f r om t he
transaxle.
(b) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
4 (SL3+) − 11 (SL3 −)5.0 to 5.6

(c) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
4 (SL3+) − Body ground10 k
or higher
11 (SL3 −)− Body ground
NG Go to step 3
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE − ECM)
(a) Connect the transmission connector to the transaxle.
(b) Disconnect the connector from the ECM.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
E12 − 15 (SL3+) − E12 − 14 (SL3 −)5.0 to 5.6

(d) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
E12− 15 (SL3+) − Body ground10 k
or higher
E12 − 14 (SL3 −)− Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)

G20767
2
1
(+)
( − )
2
1
Shift Solenoid Valve SL3:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−615
AVENSIS Supplement (RM1045E)
3 INSPECT SHIFT SOLENOID VALVE(SL3)
(a) Remove the shift solenoid valve SL3.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
20_ C (68 _ F)
1 − 25.0 to 5.6

(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 valve.
OK:
The solenoid makes an operating noise.
NG REPLACE SHIFT SOLENOID VALVE(SL3)
OK
REPAIR OR REPLACE TRANSMISSION WIRE (SEE PAGE 40 −1 6)

05−612−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
3 INSPECT TRANSMISSION VALVE BODY ASSY (See chapter 2 in the problem
symptoms table)
(SEE PAGE 05 −545)
OK:
There are no foreign objects on each valve and they operate smoothly. NG REPAIR OR REPLACE TRANSMISSION VALVEBODY ASSY (SEE PAGE 40 −1 9)
OK
4 INSPECT TORQUE CONVERTER CLUTCH ASSY (See Pub. No. RM 1018E,
page 40 −37)
OK:
The torque converter clutch operates normally. NG REPLACE TORQUE CONVERTER CLUTCHASSY
OK
REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSY (SEE PAGE 40 −1)