TOYOTA AVENSIS 2005 Service Repair Manual

G23367
Tester menu flow: 05±930
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
11. RESET MEMORY
CAUTION:
Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine
assy or ECM.
NOTICE:
Hand±held tester only
(a) Turn the ignition switch to OFF.
(b) Connect the hand±held tester to the DLC3.
(c) Turn the ignition switch to ON.
(d) Perform the reset memory procedure from the ENGINE menu.
CAUTION:
After performing the RESET MEMORY, be sure to perform the ROAD TEST described earlier.

0567O±11
Transmission Control
System Check SheetInspector 's
Name:
Customer 's Name
Registration No.
Registration Year
Frame No.
Date Vehicle
Brought InOdometer Readingkm
mile / /
/ /
Date Problem
Occurred
How Often Does
Problem Occur?/ /

Continuous
Intermittent ( times a day)
Symptoms

Vehicle does not move (
Any range
Particular range)

No up±shift (
1st
2nd
2nd
3rd
3rd
O/D )

No down±shift (
O/D
3rd
3rd
2nd
2nd
1st )

Lock±up malfunction

Shift point too high or too low

Harsh engagement (
N
D
Lock±up
Any drive range)

Slip or shudder

No kick±down

Others
DTC Check1st Time
2nd Time Check Item
Normal codeMalfunction code (DTC )
Normal codeMalfunction code (DTC )
MILNormal
Remains ON

No up±shift (S range)

No down±shift (S range)
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±919
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05CBY±01
05±918± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
PRECAUTION
CAUTION:
Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine
assy or ECM.
HINT:
Initialization can not be completed by only removing the battery.

0567N±12
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FSE))05±915
AVENSIS REPAIR MANUAL (RM1018E)
ELECTRONIC CONTROLLED AUTOMATIC TRANSAXLE
[ECT](U241E(1AZ±FSE))
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
The ECM of this system is connected to the multiplex communication system. \
Therefore, before starting trou-
bleshooting, make sure to check that there is no trouble in the multiplex communicat\
ion system.
1Vehicle Brought to Workshop
2Customer Problem Analysis (See page 05±919)
3 Connect the hand±held tester to DLC3
4Check and Clear DTC and Freeze Frame Data (See page 05±920)
5 Visual Inspection
6Setting the Check Mode Diagnosis (See page 05±920)
7 Problem Symptom Confirmation
Symptom does not occur: Go to step 8
Symptom occur: Go to step 9
8Symptom Simulation (See page 01±22)
9DTC Check (See page 05±920)
DTC is not output: Go to step 10
DTC is output: Go to step 17

05±916±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
1 0 Basic Inspection ( See page 40±2, 40±8 and 40±69 )
NG Go to step 19
OK
1 1 Mechanical System Test ( See page 05±920 )
NG Go to step 16
OK
1 2 Manual Shifting T est ( See page 05±920 )
NG Go to step 14
OK
1 3 Problem Symptoms T able Chapter 1 ( See page 05±935 )
NG Go to step 18
OK
1 4 Problem Symptoms T able Chapter 2 ( See page 05±935 )
NG Go to step 16
OK
1 5 Problem Symptoms T able Chapter 3 ( See page 05±935 )
NG
16 Part Inspection
Go to step 19
17 DTC Chart ( See page 05±931 )
1 8 Circuit Inspection ( See page 05±938)

± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±917
AVENSIS REPAIR MANUAL (RM1018E)
19 Identification of Problem
20 Repair
21 Confirmation Test
End

05±910± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
TRANSMISSION CONTROL SWITCH CIRCUIT
CIRCUIT DESCRIPTION
When shifting the shift lever into S range using the transmission control switch, it is possible to shift in 1 to
4 positions.
Shifting º+º once changes up 1 shift range position, º±º once changes down 1 shift range position respective-
ly.
05C93±01

D30750
ECM
SPT1
SFTD
SFTU L
B
R20
21
22 E10
7
1
2
5J17
J/C
W±B(*1)
(*2) A
A S
SFTD
SFTU
E SCT 3 R±WT7
Transmission Control SW
Center J/B
Driver Side J/B
I13
Ignition SW
Engine Room J/B No.4
FL MAIN
Battery
*1: LHD
*2 RHDIJIK IPJ15
J/C A AM1 IG1R±W
W±B B±G
G±Y7
1
CA
7
DB
9
DA
1
DH AM1 GAUGE1 IG1 Relay
5
13
2 DN
31
1
4D1
4B ALT
21E9
E9
W±B
W±B
CG
R±W 1
5
DH
G±R
G±Y
W±B
B±G R±W
B±G
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±911
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

H42584SPT1 E1
H42584
SFTU
SFTD E1
H42585
SFTD (+)
E (±) SFTU (+)
05±912± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
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 positionSpecified 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 positionTester 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 LOCK.
(b) Disconnect the transmission control switch connector.
(c) Check the continuity between terminals E and that SFTU
as well as SFTD of the transmission control switch con-
nector.
OK:
Shift positionTester 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

H42586
SFTD
SFTU
SFTD
SFTU
E6
A
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±913
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 (E6±22) ± SFTU (A±2)Continuity
SFTD (E6±28) ± 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