2005 TOYOTA AVENSIS Service Repair Manual

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Page 4537 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05JLD−01
G23403
Hand −Held Tester
DLC3
BR3904
ON
OFF 0.
13 sec.
0.13 sec.
05
−558
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
CHECK M

Page 4538 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual − DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−559
AVENSIS Supplement (RM1045E)
2. DTC CLEAR
(a) When using the hand−held tester:
Clearing the DTCs.
(1) Connect the hand�

Page 4539 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05JLB−01
G23403
Hand −Held Tester
DLC3
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −553
AVENSIS Supplement (RM 1045E)
DIAGNOSIS SYSTEM
1. DESCRIPTION for EURO −

05JLB−01
G23403
Hand −Held Tester
DLC3
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −553
AVENSIS Supplement (RM 1045E)
DIAGNOSIS SYSTEM
1. DESCRIPTION for EURO −OBD (European spec.)
S When troubleshooting Euro −OBD vehicles, the only dif-
ference from the usual troubleshooting procedure is that
you c onnect an O BD scan t ool com plying wit h I SO
1 503 1− 4 or a hand −held tester to the vehicle, and read
the various data output from the vehicle’s ECM.
S Eur o −O BD r egulat ions r equir e t hat t he v ehicle’s on −
board computer illuminates the check engine warning
light (CHK ENG (MIL)) on the instrument panel when the
computer detects a malfunction in: 1) the emission control
system / components, or 2) the powertrain control compo-
nents (which affect vehicle emissions), or 3) the comput-
er. In addition, the applicable Diagnostic Trouble Codes
(DTCs) prescribed by ISO 1503 1− 4 are recorded in the
ECM memory (see page 05 −564).
If the malfunction does not reoccur in 3 consecutive trips, the
CHK ENG (MIL) goes off automatically but the DTCs remain re-
corded in the ECM memory.
S To check the DTCs, connect the OBD scan tool or hand −
held tester to Data Link Connector 3 (DLC3) on the ve-
hicle. The OBD scan tool or hand −held tester also en-
ables you to erase the DTCs and check the freeze frame
data and various forms of engine data. (See the instruc-
tion manual for the OBD scan tool or the hand −held tes-
ter).
S DTCs include ISO controlled codes and manufacturer
controlled codes. ISO controlled codes must be set ac-
cording to the ISO, while manufacturer controlled codes
can be set by a manufacturer within certain restrictions
(see the DTC chart on page 05 −564).
S The diagnosis system operates in normal mode during
normal vehicle use. In ”normal mode”, 2 trip detection log-
ic* is used to ensure accurate detection of malfunctions.
A ”check mode”, is also available to technicians as an op-
tion. In ”check mode”, 1 trip detection logic is used for sim-
ulating malfunction symptoms and increasing the sys-
tem’s ability to detect malfunctions, including intermittent
malfunctions (hand −held tester only)
(see page 05 −557).
S*2 trip detection logic:
When a malfunction is first detected, the malfunction is
temporarily stored in the ECM memory ( 1st trip). If the
ignition switch is turned OFF and then ON again, and the
same malfunction is detected again, the CHK ENG (MIL)
will illuminate (2nd trip).

Page 4540 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual FI2547
G23403
Hand−Held Tester
DLC3
05 −554−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
S Freeze frame data:
The freeze frame data record

FI2547
G23403
Hand−Held Tester
DLC3
05 −554−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
S Freeze frame data:
The freeze frame data records the engine conditions (fuel
system, calculated load, engine coolant temperature, fuel
trim, engine speed, vehicle speed, etc.) when a malfunc-
tion is detected. When troubleshooting, freeze frame data
can help determine if the vehicle was running or stopped,
if the engine was warmed up or not, if the air −fuel ratio
was lean or rich, and other data from the time the malfunc-
tion occurred.
2. DESCRIPTION for M −OBD (Except European spec.)
S When troubleshoot Multiplex OBD (M −OBD) vehicles, the
only difference from the usual troubleshooting procedure
is that you connect the hand −held tester to the vehicle,
and read the various data output from the vehicle’s ECM.
S The vehicle’s on −board computer illuminates the check
engine warning lamp (CHK ENG (MIL)) on the instrument
panel when the computer detects a malfunction in the
computer itself or in drive system components. In addi-
tion, the applicable Diagnostic Trouble Codes (DTCs) are
recorded in the ECM memory (see page 05 −564).
If the malfunction does not recur, the CHK ENG (MIL) goes off
be disappeared by turning the ignition switch to OFF, but the re-
corded DTCs remain in the ECM memory.
S To check the DTCs, connect the hand −held tester to the
Data Link Connector 3 (DLC3) on the vehicle or connect
terminals TC and CG on the DLC3(DTCs will be displayd
on the multi −information display).
S The diagnosis system operates in normal mode during
normal vehicle use. In ”normal mode”, 2 trip detection log-
ic* is used to ensure accurate detection of malfunctions.
A ”check mode”, is also available to technicians as an op-
tion. In ”check mode”, 1 trip detection logic is used for sim-
ulating malfunction symptoms and increasing the sys-
tem’s ability to detect malfunctions, including intermittent
malfunctions (hand −held tester only)
(see page 05 −558).
S*2 trip detection logic:
When a malfunction is first detected, the malfunction is
temporarily stored in the ECM memory ( 1st trip). If the
ignition switch is turned OFF and then ON again, and the
same malfunction is detected again, the CHK ENG (MIL)
will illuminate (2nd trip).

Page 4541 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 3 2 145678
910111213141516
DLC33 2 145678
910111213141516
DLC33 2 145678
910111213141516
DLC3
A04550
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−555
AVENSIS Supplement (

Page 4542 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−556−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
5. CHECK CHK ENG (MIL)
(a) The CHK ENG (MIL) comes on when the ignition switch
is turned

Page 4543 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 056IN−05
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −545
AVENSIS Supplement (RM 1045E)
PROBLEM SYMPTOMS TABLE
HINT:
If a normal code is displayed during the diagno

056IN−05
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −545
AVENSIS Supplement (RM 1045E)
PROBLEM SYMPTOMS TABLE
HINT:
If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check
the electrical circuits for each symptom in the order given in the charts on the following pages and proceed
to the page given for troubleshooting.
The Matrix Chart is divided into 2 chapters.
1. Chapter 1: Electronic Circuit Matrix Chart
S Refer to the table below when the trouble cause is considered to be electrical.
S If the instruction ”Proceed to next circuit inspection shown on matrix chart” is given in the flow chart
of each circuit, proceed to the circuit with the next highest number in the table to continue the check.
S If the trouble still occurs even though there are no abnormalities in any of the other circuits, check and
replace the ECM.
HINT:
* 1 : When the circuit on which mark * 1 is attached is a malfunction, DTC could be output (see page 05 −564).
*2: LHD
SymptomSuspect AreaSee page
No down −shift
(A particular gear, from 1st to 4th gear, is not down −shifted)
1. Shift solenoid valve (SL 1) circuit*1
2. Shift solenoid valve (SL2) circuit*1
3. Shift solenoid valve (SL3) circuit*1
4. Shift solenoid valve (SR) circuit*1
5. ECM
05 −589
05 −60 1
05 −61 0
05 −598
0 1− 32
No down −shift (5th 4th)
1. Park/neutral position switch circuit *1
2. Shift solenoid valve (S4) circuit*1
3. ECM
05 −566
05 −595
0 1− 32
No up −shift
(A particular gear, from 1st to 4th gear, is not up −shifted)1. Shift solenoid valve (SL 1) circuit*1
2. Shift solenoid valve (SL2) circuit*1
3. ECM
05 −589
05 −60 1
0 1− 32
No up −shift (4th 5th)
1. Park/neutral position switch circuit *1
2. Shift solenoid valve (S4) circuit*1
3. ECM
05 −566
05 −595
0 1− 32
No lock −up
1. Shift solenoid valve (DSL) circuit*1
2. Stop light switch circuit*1
3. Engine coolant temp. sensor circuit*1
4. ECM
05 −582
05 −580
05 −31
0 1− 32
No lock −up off1. Shift solenoid valve (DSL) circuit*1
2. ECM
05 −582
0 1− 32
Shift point too high or too low
1. Throttle position sensor circuit*1
2. Shift solenoid valve (SLT) circuit*1
3. ECM
05 −31
05 −622
0 1− 32
Up −shift to 5th from 4th while engine is cold1. Engine coolant temp. sensor circuit*1
2. ECM
05 −31
0 1− 32
No gear change by shifting into ”+” or ” −” while the shift lever is in
the S position1 . Transmission control switch circuit
2. ECM05 −625
0 1− 32
Harsh engagement (N D)1. Shift solenoid valve (SL 1) circuit*1
2. ECM
05 −589
0 1− 32
Harsh engagement (Lock −up)1. Shift solenoid valve (SL2) circuit*1
2. ECM
05 −60 1
0 1− 32
Harsh engagement (Any driving position)1. Shift solenoid valve (SLT) circuit*1
2. ECM
05 −622
0 1− 32
Poor acceleration1. Shift solenoid valve (SLT) circuit*1
2. ECM
05 −622
0 1− 32

Page 4544 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−546−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
No kick
−down
1. Kick− down switch circuit *2
2. ECM
05−634
0 1− 32
Engine stall

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