2005 TOYOTA AVENSIS check engine

05–130
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
16 CHECK FUEL PRESSURE (See page 11–5 of Pub. No. RM1018E AVENSIS)
NG CHECK AND REPLACE FUEL PUMP,
PRESSURE REGULATOR, FUEL PIPE LINE AND
FILTER
OK
17 READ VALUE OF INTELLIGENT TESTER II(INTAKE AIR TEMPERATURE AND
MASS AIR FLOW RATE)
(a) Connect the intelligent tester II to the DLC3.
(b) Turn the ignition switch to ON.
(c) Check the intake air temperature.
(1) On the intelligent tester II, select the following menu items: Powertrain / Engine and ECT / Data
List / Intake Air.
(2) Read the value.
Standard: Equivalent to ambient air temperature.
(d) Check the mass air flow rate.
(1) On the intelligent tester II, select the following menu items: Powertrain / Engine and ECT / Data
List / AFM.
(2) Read the values.
Standard:
ConditionMass Air Flow Rate (gm/s)
Ignition switch ON (do not start engine)0
Idling3.2 to 4.7
Revving up without load (2,500 rpm)13.1 to 18.9
Idling – Revving upMass air flow rate fluctuates
NG REPLACE MASS AIR FLOW METER
OK

//
3020
10
5
3
02040
0.1 1
0.3 0.2
0.5 2
60 80 100–20
(–4) (104) (140) (176)(32) (68) (212)
A81700
Ohmmeter
Acceptable
Temperature C ( F)
Resistance k Ω
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–131
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
18 INSPECT ENGINE COOLANT TEMPERATURE SENSOR(RESISTANCE)
(a) Remove the engine coolant temperature sensor.
(b) Measure the resistance between the terminals.
Standard:
Tester ConnectionSpecified Condition
1 – 22.32 to 2.59 k Ω at 20 C (68 F)
1 – 20.310 to 0.326 k Ω at 80 C (176 F)
NOTICE:
When checking the engine coolant temperature sensor in
water, be careful not to allow water to get in contact with the
terminals. After the check, dry the sensor.
HINT:
Alternative procedure: Connect an ohmmeter to the installed
engine coolant temperature sensor and read the resistance.
Use an infrared thermometer to measure the engine tempera-
ture in the immediate vicinity of the sensor. Compare these val-
ues against the resistance/temperature graph. Change the en-
gine temperature (warm up or allow to cool down) and repeat
the test.
NG REPLACE ENGINE COOLANT TEMPERATURE SENSOR
OK
19 PROCEED TO STEP APPROPRIATE FOR NUMBER OF MISFIRING CYLINDERS(REFER TO RESULT OF STEP 4)
HINT:
If the result of step 4 is ”1 or 2 cylinders”, proceed to A.
If the result of step 4 is ”3 cylinders or more”, proceed to B.
B GO BACK TO STEP 4
A
CHECK FOR INTERMITTENT PROBLEMS ( See page 05–9)

05KAW–02
G30859
Intelligent
Tester II
DLC3
–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–239
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC CHECK/CLEAR
1. CHECK DTC WITH INTELLIGENT TESTER II
DTCs which are stored in the ECM can be displayed with the
Intelligent Tester II and generic OBD scantool.
These scan tools can display pending DTCs and current DTCs.
Some DTC aren’t stored if the ECM doesn’t detect a malfunc-
tion during consecutive driving. However, the detected mal-
function during once driving is stored as pending DTC.
(a) Connect the Intelligent Tester II to the Data Link Connec-
tor 3 (DLC3).
(b) Turn the ignition switch ON.
(c) Enter the following menus: Enter/ Power train/ Engine and ECT/ DTC/ Current (or Pending).
(d) Confirm the DTCs and freeze frame data and then write
them down.
(e) See page 05–245 to confirm the details of the DTCs.
NOTICE:
When simulating a symptom with the scan tool to check the
DTCs, use normal mode. For codes on DIAGNOSTIC
TROUBLE CODE CHART subject to ”2–trip detection log-
ic”, perform the following actions.
Turn the ignition switch OFF after the symptom is simulated
once. Then repeat the simulation process again. When the
problem has been simulated twice, the MIL illuminates and the
DTCs are recorded in the ECM.
2. CLEAR DTC WITH INTELLIGENT TESTER II
(a) Connect the Intelligent Tester II to the DLC3.
(b) Turn the ignition switch ON.
(c) Enter the following menus: Enter/ Power train/ Engine and ECT/ DTC/ Clear.
3. CLEAR DTC WITHOUT INTELLIGENT TESTER II
Disconnecting the battery terminal or remove the EFI and
ETCS fuses from the engine room R/B for 60 seconds or more.
But if you disconnect the battery terminal, you should do the
”INITIALIZE” procedure.

05KAT–02
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–227
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
MONITOR DRIVE PATTERN
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to simulate the detection conditions of the ECT malfunctions.
(The DTCs may not be detected due the actual driving conditions. And some codes may not be de-
tected through this drive pattern).
HINT:
Preparation for driving

Warm up the engine sufficiently. (Engine coolant temperature is 60
C (140
F) or higher)

Drive the vehicle when the atmospheric temperature is –10
C (14
F) or higher. (Malfunction is not
detected when the atmospheric temperature is –10
C (14
F) or less)
Driving note

Drive the vehicle through all gears.
Stop → 1st → 2nd → 3rd → 4th → 4th (lock–up ON).

Perform engine brake test in the S position.
While driving in the 4(S) position and 4th gear lock–up, shift into the ”–” position and down–shift from
4th to 3rd, 3rd to 2nd, 2nd to 1st.
Check that the engine brake performs properly whenever down–shift takes place.

Repeat the above driving pattern three times or more.
NOTICE:

When using the intelligent tester II, monitor status can be found in the ”Power train / Engine and
ECT / Data List”.

In the event that the drive pattern must be interrupted (possibly due to traffic conditions or other
factors) the drive pattern can be resumed and, in most cases, the monitor can be completed.
CAUTION:
Perform this drive pattern on a level road as much as possible and strictly observe the posted speed
limits and traffic laws while driving.

05KAQ–02
G24063
SST
SST
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–223
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80
C (122 to 176
F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST’s hose from interfering with the exhaust pipe.

This check must be conducted after checking and adjusting engine.

Perform under condition that A/C is OFF.

When conducting stall test, do not continue more than 10 seconds.
(1) Warm up the ATF.
(2) Remove the test plug on the left side of the trans-
axle case and connect SST.
SST 09992–00095 (09992– 00231, 09992–00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect an Intelligent Tester II to the DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R position.
Specified line pressure:
ConditionD position kPa (kgf / cm2, psi)R position kPa (kgf / cm2, psi)
Idling372 to 412 kPa
(3.8 to 4.2 kgf/cm2, 54 to 60 psi)
553 to 623 kPa
(5.6 to 6.4 kgf/cm2, 80 to 90 psi)
Stall test1,126 to 1,226 kPa
(11.5 to 12.5 kgf/cm2, 163 to 178 psi)
1,664 to 1,864 kPa
(17.0 to 19.0 kgf/cm2, 241 to 270 psi)
Evaluation:
ProblemPossible cause
If the measured values at all positions are higher
Shift solenoid valve SLT defective

Regulator valve detective
If the measured values at all positions are lower

Shift solenoid valve SLT defective

Regulator valve detective

Oil pump defective
If pressure is low in the D position only
D position circuit fluid leak

Forward clutch defective
If pressure is low in the R position only

R position circuit fluid leak

Reverse clutch defective

1st and reverse brake defective

05KAP–02
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–221
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
MECHANICAL SYSTEM TESTS
1. PERFORM MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80
C (122 to 176
F).

Do not continuously run this test for longer than 10 seconds.

To ensure safety, do this test in a wide, clear level area which provides good traction.

The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an Intelligent Tester II to the DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressed firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
(7) Quickly read the stall speed at this time.
Stall speed: 2,400
150 rpm
(8) Do the same test in the R position.
Stall speed: 2,400
150 rpm
Evaluation:
ProblemPossible cause
(a) Stall engine speed is low in D and R positions

Engine power output may be insufficient

Stator one–way clutch not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Stall engine speed is high in D position

Line pressure is too low

Forward clutch slipping

One–way clutch No.2 not operating properly
(c) Stall engine speed is high in R position

Line pressure is too low

Reverse clutch slipping

1st and reverse brake slipping
(d) Stall engine speed is high in D and R positions
Line pressure is too low

Improper fluid level

05–222– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
(b) Measure the time lag.
(1) When the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag
before the shock can be felt. This is used for checking the condition of the direct clutch, forward
clutch, and 1st and reverse brake.
NOTICE:

Perform the test at the normal operating ATF temperature 50 to 80
C (122 to 176
F).

Be sure to allow 1 minute interval between tests.

Perform the test three times, and measure the time lags. Calculate the average value of the three
time lags.
(2) Connect an Intelligent Tester II to the DLC3.
(3) Fully apply the parking brake.
(4) Start and warm up the engine and check idle speed.
Idle speed: approx. 700 rpm (In N position and A/C OFF)
(5) Shift the lever from N to D position. Using a stop watch, measure the time from when the lever
is shifted until the shock is felt.
Time lag: N → D less than 1.2 seconds
(6) In the same way, measure the time lag for N → R.
Time lag: N → R less than 1.5 seconds
Evaluation (If N → D or N → R time lag is longer than the specified):
ProblemPossible cause
N → D time lag is longer

Line pressure is too low

Forward clutch worn

One–way clutch No.2 not operating properly
N → R time lag is longer

Line pressure is too low

Reverse clutch worn

1st and reverse brake worn

B59192
Wire Harness Side:
(Connector Front View):E8
05–298–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INSPECTION PROCEDURE
1 DRIVING TEST
(a) Start the engine.
(b) Turn the ECT SNOW switch ”OFF” (Normal drive mode).
(c) Confirm vehicle response by driving from a parked position to fully depressing the accelerator pe\
dal.
(d) Turn the ECT SNOW switch ”ON” and perform the same check as (c). Confirm that there is a difference between ECT SNOW switch ”ON” and ”OFF”.
HINT:

Driving test should be done on a paved road (a nonskid road).

Make sure not to use the TRAC system when testing a vehicle equipped wit\
h one.
OK:
There is a difference in acceleration between ”ON” and ”OFF”\
.
NG Go to step 2
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMP TOMS TABLE
( SEE PAGE 05–229 )
2 CHECK HARNESS AND CONNECTOR(PATTERN SELECT SWITCH ASSY NO.1 –
BODY GROUND)
(a) Disconnect the connector of pattern select switch.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
1 – Body groundBelow 1 Ω
NG REPAIR OR REPLACE HARNESS OR
CONNEC TOR ( SEE PAGE 01–32 )
OK