code TOYOTA AVENSIS 2005 Service Repair Manual

F45132
Battery
FL MAIN Skid Control ECU
with Actuator
B±G (*1)R (*1) 1
ALTVSC
Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS1
S1
10 5
+BS
12
1
2
GND1 GND2
S1 6
W±B W±B
*1: 1AZ±FSE
*2: 1CD±FTV EA4
R (*2)
W (*2)
2
12
331
1B1
ALT
Engine Room R/B No.3
Engine Room R/B No.1 &
Engine Room J/B No.1
B (*2)
B±G (*1) VSC
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±783
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check if other DTCs are detected (See page 05±756).
YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

0542T±04
05±772
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still o\
ccurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the releva\
nt troubleshooting page.
NOTICE:
When replacing the ABS & TRACTION actuator, sensor or etc., turn the ignition switch to OFF.
SymptomSuspect AreaSee page
ABS does not operate
BA does not operate
EBD does not operate
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the brake master cylinder with a ABS actuator checker or hand±held tester.
If there is malfunction, check the hydraulic circuit for leak-
age.
05±756
05±808
05±774
05±778 32±56
ABS does not operate properly
BA does not operate properly
EBD does not operate properly
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. Speed sensor circuit
3. Stop light switch circuit
4. Check the brake master cylinder with a ABS actuator checker or hand±held tester.
If there is malfunction, check the hydraulic circuit for leak-
age.
05±756
05±774
05±778
05±815 32±56
ABS warning light malfunction1. ABS warning light circuit
2. ABS & TRACTION actuator05±827 ±
DTC of ABS check cannot be performed
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. Tc terminal circuit
05±756
05±852
Sensor signal check cannot be performed1. Ts terminal circuit
2. ABS & TRACTION actuator05±854 ±
TRC does not operate
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
05±756
05±808 ±
05±774
05±778

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±773
AVENSIS REPAIR MANUAL (RM1018E) Symptom
Suspect AreaSee page
VSC does not operate
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal
code is output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
5. Yaw rate sensor and deceleration sensor circuit
6. Steering angle sensor circuit
05±756
05±808 ±
05±774
05±778
05±790
05±793
05±801
SLIP indicator light malfunction1. SLIP indicator light circuit
2. ABS & TRACTION actuator05±848 ±
TRC OFF indicator malfunction
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. TRC OFF switch circuit
05±756
05±844
DTC of VSC check cannot be performed
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. Tc terminal circuit
05±756
05±852
VSC warning light malfunction
If the symptoms still occur even after the following circuits
in suspect areas are inspected and proved to be normal,
replace the ABS & TRACTION actuator.
1. Check the DTC again and make sure that the normal code is output.
2. VSC warning circuit
05±756
05±831

05±826
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check if other DTCs are detected (See page 05±756). YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

C94397
GND
IG1
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±819
AVENSIS REPAIR MANUAL (RM1018E)
DTCC1300/62SKID CONTROL ECU MALFUNCTION
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1300/62
1.Skid control ECU continuously detects the continuous
operation of ABS at all 4 wheels for max. 1.28 sec.
2.Continuos VSC operation for 10 sec. or more.
3.Internal malfunction in ECU.

ECU
INSPECTION PROCEDURE
1RECONFIRM DTC
ADTC C1300/62
BExcept DTC C1300/62
BREPAIR CIRCUIT INDICATED BY OUTPUT
CODE
A
2INSPECT SKID CONTROL ECU CONNECTOR(IG1 TERMINAL VOLTAGE)
WITH USING HAND±HELD TESTER:
(a)Check the voltage condition, which is output from the ECU and displayed \
on the hand±held tester. OK:
ºNormalº is displayed.
WITHOUT USING HAND±HELD TESTER:
(a)Disconnect the skid control connector.
(b)Turn the ignition switch ON.
(c)Measure the voltage between terminals IG1 and GND ofthe skid control ECU harness side connector.
OK:
Voltage: 10 to 14 V
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
05789±02

0567W±11
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))05±879
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
HINT:
If a normal code is displayed during the DTC check but the trouble still o\
ccurs, check the circuits for each
symptom in the order given in the charts on the following pages and proceed to \
the page given for trouble-
shooting.
The Matrix Chart is divided into 3 chapters.

If the instruction ºProceed to next circuit inspection shown on matri\
x chartº is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to continue the check.

If the trouble still occurs even though there are no abnormalities in any of the other circuits, then ch\
eck
and replace the ECM.
CHAPTER 1: ELECTRONIC CIRCUIT MATRIX CHART
SymptomSuspect AreaSee page
No up±shift (A particular gear, from 1st to O/D gear, is not up±
shifted)ECM01±32
No down±shift (A particular gear, from O/D to 1st gear, is not
down±shifted)ECM01±32
No lock±up or No lock±up off
4. Stop light switch circuit
5. Engine coolant temp. sensor circuit
6. Throttle position sensor circuit
7. ECM05±905
05±161
05±161
01±32
Shift point too high or too lowECM01±32
No gear change by shifting into º+º or º±º while the shif\
t lever is in
the Sposition1. Transmission control switch circuit
2. ECM05±91001±32
Up±shift to O/D from 3rd while engine is cold
1. Engine coolant temp. sensor circuit
2. ATF temp. sensor circuit
3. ECM05±161
05±88201±32
Harsh engagement (N
D)ECM01±32
Harsh engagement (Lock±up)ECM01±32
Harsh engagement (Any driving range)ECM01±32
Poor accelerationECM01±32
Engine stalls when starting off or stoppingECM01±32
No kick±down1. Kick±down switch circuit
2. ECM05±908
01±32

0567Q±08
05±876±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed in th\
e table below and proceed to the
page given.
*
1 : ± ... MIL does not light /
... MIL light up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500/42 (05±240)Vehicle Speed Sensor ºAº
 Combination meter
 Open or short in vehicle speed sensor circuit
 Vehicle speed sensor
 ECM


P0710/38
(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit

P0712/38(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit Low Input Open or short in ATF temperature sensor circuit
 ATF temperature sensor

ECM


P0713/38
(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit High Input
ECM


P0717/37(05±884)Turbine Speed Sensor Circuit No
Signal
 Open or short in speed sensor (NT) circuit
 Speed sensor (NT)
 ECM
 Automatic transaxle assembly


P0748/62
(05±886)Pressure Control Solenoid ºAº
Electrical
(Shift Solenoid Valve SL1) Open or short in shift solenoid valve SL1 circuit
 Shift solenoid valve SL1
 ECM


P0778/63
(05±886)Pressure Control Solenoid ºBº
Electrical
(Shift Solenoid Valve SL2) Open or short in shift solenoid valve SL2 circuit
 Shift solenoid valve SL2
 ECM


P0793/67
(05±892)Intermediate Shaft Speed Sen-
sor ºAº Open or short in speed sensor (NC) circuit
 Speed sensor (NC)
 ECM


P0982/65
(05±886)Shift Solenoid ºDº Control Circuit
Low (Shift Solenoid Valve S4) Open or short in shift solenoid valve S4 circuit
Shift l id l S4


P0983/65
(05±886)Shift Solenoid ºDº Control Circuit
High (Shift Solenoid Valve S4) Shift solenoid valve S4
 ECM


P2716/77
(05±894)Pressure Contorl Solenoid ºDº
Electrical
(Shift Solenoid Valve SLT) Open or short in shift solenoid valve SLT circuit
 Shift solenoid valve SLT
 ECM
±
P2769/64
(05±897)Torque Converter Clutch Sole-
noid Circuit Low
(Shift Solenoid Valve DSL)
 Open or short in shift solenoid valve DSL circuit
Shift l id l DSL
±
P2770/64
(05±897)Torque Converter Clutch Sole-
noid Circuit High
(Shift Solenoid Valve DSL) Shift solenoid valve DSL
 ECM
±

05C8R±02
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))05±863
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1.DIAGNOSIS SYSTEM
(a)Description for Euro±OBD
(1)When troubleshooting Euro±OBD vehicles, theonly difference from the usual troubleshooting pro-
cedure is that you connect the vehicle to the OBD
scan tool complying with ISO 15031±4 or hand±
held tester, and read off various data output from
the vehicle's ECM.
(2)Euro±OBD regulations require that the vehicle's on±board computer illuminates the Check Engine
Warning Light (Malfunction Indicator Lamp)/CHK
ENG (MIL) on the instrument panel when the com-
puter detects a malfunction in the emission control
system/components or in the driving system com-
ponents which affect vehicle emissions, or a mal-
function in the computer. In addition to CHK ENG
(MIL) illuminating when a malfunction is detected,
the applicable Diagnostic Trouble Codes (DTCs)
prescribed by ISO15031±6 are recorded in the
ECM memory.
If the malfunction does not occur in 3±trip, the CHK ENG (MIL)
goes off but the DTCs remain recorded in the ECM memory. (3)To check the DTCs, connect the OBD scan tool orhand±held tester to the Data Link Connector 3
(DLC3) on the vehicle. The OBD scan tool or hand±
held tester also enables you to erase the DTCs and
check freezed frame data and various forms of en-
gine data (For operating instructions, see the OBD
scan tool's instruction book.).
(4)DTCs include ISO controlled codes and manufac- turer controlled codes. ISO controlled codes must
be set as prescribed by the ISO, while manufacturer
controlled codes can be set freely by the manufac-
turer within the prescribed limits (See DTC chart on
page 05±876).
(5) The diagnosis system operates in normal mode during normal vehicle use. It also has a check mode
for technicians to simulate malfunction symptoms
and troubleshoot. Most DTCs use 2 trip detection
logic (*) to prevent erroneous detection, and ensure
thorough malfunction detection. By switching the
ECM to check mode when troubleshooting, techni-
cians can cause the CHK ENG (MIL) to light up for
a malfunction that is only detected once or momen-
tarily (Hand±held tester only) (See step 2).

05±864± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
(6) *2 trip detection logic:
When a malfunction is first detected, the malfunc-
tion code is temporarily stored in the ECM memory
(1st trip). If the same malfunction is detected again
during the second drive test, this second detection
causes the CHK ENG (MIL) to illumenate (2nd trip)
(However, the ignition switch must be turned OFF
between the 1st trip and the 2nd trip.).
(b) Description M±OBD
(1) When troubleshooting Multiplex (M±OBD) vehicles,
the only difference from the usual troubleshooting
procedure is that you connect the hand±held tester
to the vehicle, and read off various data output from
the vehicle's ECM.
(2) The vehicle's on±board computer illuminates the
MIL on the instrument panel when the computer de-
tects a malfunction in the computer itself or in driv-
ing system components. In addition to the MIL illu-
minating when a malfunction is detected, the
applicable DTCs are recorded in the ECM memory.
If the malfunction does not occur in 3±trip, the CHK ENG (MIL)
goes off but the DTCs remain recorded in the ECM memory.
(3) To check the DTCs, connect the hand±held tester
to DLC3 on the vehicle or read the number of blinks
of the MIL when TC and CG terminals on the DLC3
are connected. The hand±held tester also enables
you to erase the DTCs and activate the several ac-
tuators and check freeze frame data and various
forms of engine data (For instruction book).
(4) The diagnosis system operates in normal mode
during normal vehicle use, and also has a check
(test) mode for technicians to simulate malfunction
symptoms and perform troubleshooting. Most
DTCs use 2±trip detection logic (*) to prevent erro-
neous detection and ensure thorough malfunction
detection. By switching the ECM to check (test)
mode using the hand±held tester when trouble-
shooting, the technician can cause the MIL to illumi-
nate for a malfunction that is only detected once or
momentarily.
*2±trip detection logic:
When a logic malfunction is first detected, the mal-
function is temporarily stored in the ECM memory.
If the same malfunction is detected again during the
2nd test drive, this 2nd detection causes the MIL to
illuminate.

D25148
CGTC
DLC3
123457
68
91011121315 1416
AT0716
ON
OFF
0.26 Seconds
Normal Code0.26 Seconds
AT0713
0.52 Seconds
ON
OFF
For Next Code
Repeat
2.5 Seconds
4.0 Seconds1.5 Seconds4.5 Seconds
Malfunction Code º42º
05±866
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
(1)Use the hand±held tester to check the DTCs and instructions, see the hand±held tester instruction
book.
(2)See page 05±876 to confirm the details of the DTCs.
(c) Check the DTC (Not using the hand±held tester). (1) Turn the ignition switch ON, but do not start the en-
gine.
(2) Using SST, connect terminals 13 (TC) and 4 (CG) of DLC3.
SST 09843±18040
(3) Read the DTC indicated by the number of times of the MIL blinks.
HINT:
If the system is operating normally, the light will blink 2 times per
second.
(4) The malfunction code is indicated, as shown in thechart on the left (DTC º42º is shown as an example).
HINT:
When 2 or more malfunction codes are stored in memory, the
lower±numbered code is displayed first.