code TOYOTA AVENSIS 2005 Service Repair Manual

C52361
DLC3:CGTs
Tc
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1049
AVENSIS REPAIR MANUAL (RM1018E)
6.INPUT SIGNAL CHECK (TEST MODE)
(USING HAND±HELD TESTER)
(a)Check the input signal using the hand±held tester.
(1)Connect the hand±held tester to the DLC3.
(2)Check that the warning light goes off with driving thevehicle more than 10 km/h (6 mph) and engine
speed more than 300 rpm.
(3)Read the DTC by following the prompts on the tes- ter screen.
HINT:

Refer to the hand±held tester operator's manual for fur-
ther details.

See the list of DTC shown in the table below.

Even if a sensor is normal, it outputs codes C1571/71 and
C1573/73 during test mode.
DTC of input signal check function:
Code No.
(See page)DiagnosisTrouble Area
C1571/71
(05±1067)Speed sensor signal check 1 (Test mode)

Speed sensor

Speed sensor circuit

Skid control ECU assy

Combination meter assy

Power steering ECU assy
C1573/73
(05±1070)Engine revolution signal check (Test mode)

Engine revolution signal circuit

ECM

Power steering ECU assy
7. CALIBRATION OF TORQUE SENSOR ZERO POINT
(USING SST CHECK WIRE)
HINT:
Perform this operation in the following cases.

When removing and installing ºsteering wheel assemblyº,
ºtilt steering column assemblyº and ºsteering gear assem-
blyº.

When replacing power steering ECU assy.
(a) Place front wheels and steering wheel facing straight ahead.
(b) Perform the torque sensor zero point initialization.
HINT:
If the power steering ECU assy is replaced, initialization is not
necessary. (1) Stop the vehicle and turn the ignition switch OFF.
(2) Using SST, connect terminals Ts and CG of DLC3.
SST 09843±18040
(3) Using SST, connect terminals Tc and CG of DLC3.
SST 09843±18040
(4) Turn the ignition switch ON.

050Y7±04
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InLicence No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs
ContinuousIntermittent ( times a day)
Steering operation is heavy.
Steering force to the right and left differs, or steering force is uneven.
PS Warning Light
AbnormalRemains ONDoes not come on
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
EMPS Check Sheet
While running, the steering force does not alter corresponding the vehicle
speed.
Vibration or strange sound comes from the steering column assy.
A malfunction code is outputed at the first time, record the freeze frame data as well (as the DTCs). Freeze Frame Data
When a trouble happens
(
During turningDuring vehicle stopAlways)
OthersCooled Warmed up
/ /Engine() Vehicle Model
The steering returns unwell.
Production Date VIN 05±1044
± DIAGNOSTICSELECTRONIC MOTOR POWER STEERING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

050Y2±04
05±1042
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
ELECTRONIC MOTOR POWER STEERING SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
Perform troubleshooting in accordance with the procedure on the following pages\
.
HINT:

See the indicated pages for detailed explanation.

The hand±held tester can be used at step 3, 6, 9, 12.
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS(See page 05±1044)
3 CHECK AND CLEAR DTCS AND FREEZE FRAME DATA
(a)After the completion of the DTC and freeze frame data check, clear the DTCs (See page 05±1045).
4 PROBLEM SYMPTOM CONFIRMATION
SYMPTOM DOES NOT OCCUR(Go to step 5)
SYMPTOM OCCURS(Go to step 6)
5SYMPTOM SIMULATION(See page 01±22)
6DTC CHECK(See page 05±1045)
NORMAL CODE(Go to step 7)
MALFUNCTION CODE(Go to step 8)
7PROBLEM SYMPTOMS TABLE(See page 05±1058)
8DTC CHART(See page 05±1054)

050TJ±13
05±1094
±
DIAGNOSTICS AIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If malfunction code is displayed during the DTC check (sensor check), ch\
eck the circuit listed for the code
in the table below (Proceed to the page given for that circuit).
DTC No.
(See Page)Detection ItemTrouble AreaMemory
00Normal±±
11 *1
(05±1102)
Room temperature sensor circuit
(open/short)
Cooler thermistor (room temp. sensor)

Harness or connector between cooler thermistor (room
temp. sensor) and A/C amplifier assy

A/C amplifier assy

(8.5 min. or more)
12 *2
Ambient temperature sensor circuit
(open/short)
Thermistor assy (ambient temp. sensor)

Harness or connector between thermistor assy (ambient
temp. sensor) and combination meter

Combination meter12
(05±1106)
Combination meter

Harness or connector between combination meter and A/C
amplifier assy

A/C amplifier assy
(8.5 min. or more)
13
(05±1109)
Evaporator temperature sensor circuit
(open/short)
Cooler thermistor No.1 (evaporator temp. sensor)

Harness or connector between cooler thermistor No.1
(evaporator temp. sensor) and A/C amplifier assy

A/C amplifier assy

(8.5 min. or more)
21 *3
Solar sensor circuit (open) (Passenger
side)
Automatic light control sensor (solar sensor)

Harness or connector between automatic light control sen-
( l ) d A/C lifi

(8.5 min. or more)
21
(05±1113)
Solar sensor circuit (short) (Passenger
side)sor (solar sensor) and A/C amplifier assy

A/C amplifier assy
±
23
(05±1116)
Pressure sensor circuit
A/C tube assy (pressure sensor)

Harness or connector between A/C tube assy (pressure
sensor) and A/C amplifier assy

A/C amplifier assy
±
24 *3
Solar sensor circuit (open)
(Driver side)
Automatic light control sensor (solar sensor)

Harness or connector between automatic light control sen-
( l ) d A/C lifi

(8.5 min. or more)
24
(05±1119)
Solar sensor circuit (short)
(Driver side)sor (solar sensor) and A/C amplifier assy

A/C amplifier assy
±
31
(05±1122)
Air mix damper position sensor circuit
(Passenger side)
Air mix damper servo sub±assy (air mix damper position
sensor)

Harness or connector between air mix damper servo sub±
assy (air mix damper position sensor) and A/C amplifier
assy

A/C amplifier assy

(1 min. or more)
33
(05±1126)
Air outlet damper position sensor circuit
Mode damper servo sub±assy (mode damper position sen-
sor)

Harness or connector between mode damper servo sub±
assy (mode damper position sensor) and A/C amplifier assy

A/C amplifier assy

(1 min. or more)
36
(05±1129)
Air mix damper position sensor circuit
(Driver side)
Air mix damper servo sub±assy (Air mix damper position
sensor)

Harness or connector between air mix damper servo sub±
assy (air mix damper position sensor) and A/C amplifier
assy

A/C amplifier assy

(1 min. or more)
41
(05±1133)
Air mix damper control servomotor
(Passenger side)
Air mix damper servo sub±assy (air mix damper control)

Harness or connector between air mix damper servo sub±
assy (air mix damper control) and A/C amplifier assy

A/C amplifier assy

(15 sec.)

I35392
DTCDEF
I35417ECU±B2
Fuse block:
3
2
145678
910111213141516
DLC3
A04550
05±1092
±
DIAGNOSTICS AIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3.DTC CHECK (SENSOR CHECK)
(a)After the indicator check is completed, the system enters the DTC check mode automatically.
(b)Read the codes displayed on the panel. Refer to the list of codes on page 05±1094 when reading the codes.
(Trouble codes are outputed at the temperature display.)
(c) If the slower display is desired, press the DEF switch and
change it to the stop operation. Each time the DEF switch
is pressed, the display changes by 1 step.
4. CLEARING DTC
(a) To clear diagnostic trouble code, there are 2 ways. (1) During sensor check, press the ºDEFº switch andºDUALº switch at the same time.
(2) Pull the ECU±B2 fuse in fuse block for 20 seconds or longer to clear the DTC memory.
5. CHECK DLC3
(a) The vehicle engine and ECT ECU uses the ISO 9141±2 (Euro±OBD)/ISO 14230 (M±OBD) communication proto-
col. The terminal arrangement of the DLC3 complies with
ISO 15031±3 and matches the ISO 9141±2/ISO 14230
format.
Terminal No.Connection/Voltage or ResistanceCondition
7Bus + Line/Pulse generationDuring transmission
4Chassis Ground
Body Ground/1
or lessAlways
5Signal Ground
Body Ground/1
or lessAlways
16Battery Positive
Body Ground/9 ± 14 VAlways

I36146
Display code R/FDEFLHD:
I36147
Display code RHD:R/FDEF
Blower level Step No.Display
codeConditions
Air flow bent Air inlet damper Compressor
ºCOOLº side (Full closed)Air mix damper
OFF FRESH
FACE 0
1
2
3
6
7
8
9
104
51
16
16
16
16
16
16
16
31 0
1
2
3
6
7
8 4
5
9FACE
FACE
FACE
B/L
FOOT1
FOOT/ DEF.
DEF.FRESH
ON
ON
ON
ON
ON
ON
ONºCOOLº side (Full closed)
ºCOOLº side (Full closed)
ºCOOLº side (Full closed)
ºCOOLº/ ºHOT º (50 % open)
ºHOTº side (Full opened)
FOOT FACE1FRESH
FRESH
RECIRCULATION
RECIRCULATION
RECIRCULATION
RECIRCULATION
RECIRCULATION
RECIRCULATIONHot gas magnetic valve
ºCOOLº/ ºHOT º (50 % open)
ºHOTº side (Full opened)
ºHOTº side (Full opened)ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OFF
ºHOTº side (Full opened) OFF
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1093
AVENSIS REPAIR MANUAL (RM1018E)
6. ACTUATOR CHECK
(a) After entering the DTC check mode (Sensor Check
Mode) press the R/F switch.
(b) Since each damper, motor and relay automatically oper-
ates at 1 second intervals beginning in order from 10 in
the temperature display, check the temperature and air
flow from visual and by hand.
If the slower display is desired, press the DEF switch and
change it to step operation. Each time the DEF switch is
pressed, the display changes by 1 step.
HINT:

Codes are displayed from the smaller to the larger num-
bers in order.

To cancel the check mode, press the OFF switch.

050TH±09
I30150
Inspector 's name:
Customer 's NameVIN
Production Date
Licence No.
Odometer Readingkm
Miles Date vehicle
Brought In / /
Date of Problem Occurrence
How Often does Problem Occur?
Weather
Outdoor Temperature / /

Continuous
Intermittent ( times a day)

Fine
Cloudy
Snowy
Various / Other

Hot
Warm
Cool
Cold (Approx.
F

C)
Symptoms
Blower motor does not operate

Blower motor speed does not change
(Always Hi, Always Mid, Always Lo) Air Flow Control
Faulty

Cabin temperature does not go down

Response is slow

Cannot change between FRS and REC
(Always Fresh or always Recirculating)

Will not enter the desired mode Temperature
Control Faulty
Air Inlet Control
Faulty
Vent Control
Faulty
DTC Check1st Time
2nd Time
Normal Code
Malfunction Code (Code )

Normal Code
Malfunction Code (Code )
AIR CONDITIONING SYSTEM Check Sheet

Cabin temperature does not rise

Mode will not change 05±1090
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

050TG±11
05±1088
±
DIAGNOSTICS AIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
AIR CONDITIONING SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
1VEHICLE BROUGHT TO WORK SHOP
2CUSTOMER PROBLEM ANALYSIS (See page 05±1090)
3CHECK AND CLEAR DTC (See page 05±1091)
4 PROBLEM SYMPTOM CONFIRMATION
SYMPTOM OCCUR (GO TO STEP 6)
SYMPTOM DOES NOT OCCUR (GO TO
STEP 5)
5SYMPTOM SIMULATION (See page 01±22)
6DTC CHECK (See page 05±1091)
MALFUNCTION CODE (GO TO STEP 7)
NORMAL CODE (GO TO STEP 8)
7DTC CHART (See page 05±1094)
GO TO STEP 10
8PROBLEM SYMPTOMS TABLE (See page 05±1100)
9ACTUATOR CHECK (See page 05±1091)

F44304
PGND (±)
E14PIG (+)
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1081
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
NOTICE:
When performing the inspection of power steering ECU, ECU must be instal\
led to the vehicle or fully
fixed.
HINT:
Start the inspection from the step 1 with using hand±held tester. Start from step 2 without using hand±held
tester.
1READ VALUE OF HAND±HELD TESTER
(a)Connect the hand±held tester to the DLC3.
(b)Turn the ignition switch to ON and turn the hand±held tester main swit\
ch to ON.
(c)Select the item ºPIG SUPPLYº in the FREEZE FRAME DATA and read its value displayed on the hand±
held tester.
(d)Check that the power supply voltage value of the drive motor displayed b\
y the hand±held tester. Standard:
Voltage: 10 to 16 V
OKGo to step 3
NG
GO TO RELEVANT DTC CHART
2INSPECT POWER STEERING ECU ASSY(PIG TERMINAL VOLTGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between terminals PIG and PGND of power steering ECU assy connector.
Standard:
Voltage: 10 to 16 V
NGGO TO RELEVANT DTC CHART (See page 05±1076)
OK
3 RECONFIRM DTC
(a)Check the DTCs (See page 05±1045).
(b) Is DTC except for C1552/52 output? YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
REPLACE POWER STEERING ECU ASSY(See page 50±20)

±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1071
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
NOTICE:
When performing the inspection of power steering ECU, ECU must be instal\
led to the vehicle or fully
fixed.
HINT:
Start the inspection from the step 1 with using hand±held tester. Start from step 2 without using hand±held
tester.
1READ VALUE OF HAND±HELD TESTER
(a)Connect the hand±held tester to the DLC3.
(b)Turn the ignition switch to ON, and turn the hand±held tester main swi\
tch to ON.
(c)Select the item ºENGINE REVº in the DATA LIST and read its value displayed on the hand±held tester.
(d)Check that there is no difference between the engine revolution value output from the tachometer d\
is-
played by the hand±held tester and the engine revolution value displayed by\
the tachometer when
engine is idle.
OK:
There is almost no difference in the displayed engine revolution values.\
HINT:
There is tolerance of
10 % in the tachometer indication.
OKREPLACE POWER STEERING ECU ASSY(Seepage 50±20)
NG
2 CHECK DIAGNOSTIC CODE OUTPUT
(a) Check that the DTC for engine output the normal code. NG REPAIR CIRCUIT INDICATED BY OUTPUTCODE
OK