2005 TOYOTA AVENSIS sensor

056HH–07
–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–313
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DIAGNOSTIC TROUBLE CODE CHART
If a trouble code is indicated while checking DTCs, inspect the circuit li\
sted for that code in the table below,
and proceed to the applicable page.
DTC No.
(See Page)Circuit InspectionTrouble Area
P0500/21 ( 05–317 )Vehicle speed sensor circuit
Vehicle speed sensor
 Vehicle speed sensor signal circuit
 ECM
P0503/23
( 05–317 )Vehicle speed sensor circuit
Vehicle speed sensor
 Vehicle speed sensor signal circuit
 ECM
P0571/52
( 05–318 )Stop light switch circuit
Stop lamp switch assy
 Stop lamp switch assy circuit
 ECM
P0607/54
( 05–321 )Input signal circuitECM

N17520
(2)
I34749
CRUISE main
indicator light
BE4034
Indicator Light:ON
OFF 1.5 sec. 0.5 sec.
–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–307
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
(c) Check the indicator.
(1) Turn the ignition switch to the ON position.
(2) Check that the CRUISE main indicator light comeson when the cruise control main switch ON–OFF
button is pushed on, and that the indicator light
goes off when the ON–OFF button is pushed off.
HINT:
If there is a problem with the indicator light, inspect the CRUISE
main indicator light circuit ( see page 05–327).
HINT:
If a malfunction occurs in the vehicle speed sensors, stop lamp
switch assy or other related parts during cruise control driving,
the ECM actuates AUTO CANCEL of the cruise control. Then
the CRUISE main indicator light starts to blink, informing the
driver of the malfunction. At the same time, data of the malfunc-
tion is stored as a diagnostic trouble code (DTC).

G31165
E1
Electronically Controlled
Transmission Solenoid
R
E12SLECM
15
LG
4
SL+B
CPU
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–289
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P2769 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT LOW (SHIFT SOLENOID VALVE SL)
DTC P2770 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT HIGH (SHIFT SOLENOID VALVE SL)
CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ”ON” and ”OFF” by signals from the ECM in order to control the hydraulic
pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch.
DTC No.DTC Detection ConditionTrouble Area
P2769ECM detects short in solenoid valve SL circuit (0.1 sec.) when
solenoid valve SL is operated (2–trip detection logic)
Short in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM
P2770ECM detects open in solenoid valve SL circuit (0.1 sec.) when
solenoid valve SL is not operated (2–trip detection logic)
Open in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM
MONITOR DESCRIPTION
Based on the signals from the Throttle Position Sensor, the Airflow Meter and the Crankshaft Position Sen-
sor, the ECM sends a signal to the shift solenoid valve SL to regulate the hydraulic pressure and provide
smoother gearshifts. The shift solenoid valve SL responds to commands from the ECM. The valve controls
the lock–up relay valve to perform the torque–converter lock–up function. If the ECM detects an open or
short circuit for shift solenoid valve SL, it will illuminate the MIL.
WIRING DIAGRAM
05CW7–06

05–268– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P0751 SHIFT SOLENOID ”A” PERFORMANCE
(SHIFT SOLENOID VALVE S1)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor and speed sensor NT to detect the actual gear position
(1st, 2nd, 3rd or 4th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves and valve body.
DTC No.DTC Detecting ConditionTrouble Area
P0751The gear required by the ECM does not match the actual gear
when driving (2–trip detection logic)

Shift solenoid valve S1 remains open or closed

Valve body is blocked

Shift solenoid valve S1

Automatic transaxle (clutch, brake or gear etc.)

ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ”ON/OFF”. According to the input shaft
revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual
gear position (1st, 2nd, 3rd or 4th gear position). When the gear position commanded by the ECM and the
actual gear position are not same, the ECM illuminates the MIL.
Example:
When either condition (a) or (b) is met, the ECM detects a malfunction.
(a) The ECM commands the 1st gear, but the actual gear is 2nd.
(b) The ECM commands the 2nd gear, but the actual gear is 1st.
05CVV–05

E65594
Free Pushed in2
3
41
05–262– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INSPECTION PROCEDURE
HINT:
Using the Intelligent Tester II Data List allows switch, sensor, actuator and other item values to be read with-
out removing any parts. Reading the Data List early in troubleshooting is one way to shorten labor time.
NOTICE:
In the table below, the values listed under ”Normal Condition” are reference values. Do not depend
solely on these reference values when deciding whether a part is faulty or not.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the Intelligent Tester II to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item ”Enter / Power train / Engine and ECT / Data List”.
(g) Follow the instructions on the tester and read the Data List.
ItemMeasurement Item/
Range (display)Normal Condition
Stop Light SwitchStop light SW Status/
ON or OFF
Brake Pedal is depressed: ON

Brake Pedal is released: OFF
1 INSPECT STOP LAMP SWITCH ASSY
(a) Remove the stop lamp switch assy.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch positionTester ConnectionSpecified Condition
Switch pin free1 – 2Below 1 Ω
Switch pin pushed in↑10 kΩ or higher
Switch pin free3 – 410 kΩ or higher
Switch pin pushed in↑Below 1 Ω
NG REPLACE STOP LAMP SWITCH ASSY
OK


C42920C53419
5 V/DIV
0.5 ms/DIV
G31763
ECM
NT+
NT– 26
34 B–O
B 2 1E12
E12 T4
Turbine Speed Sensor
5V
E1 05–258
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P0717 TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL
CIRCUIT DESCRIPTION
This sensor detects the rotation speed of the input turbine. By comparing the input turbine speed signal (NT)
with the vehicle speed sensor signal, the ECM detects the shift timing of the gears and appropriately controls
the engine torque and hydraulic pressure according to various conditions. Thus, providing smooth gear shift.
DTC No.DTC Detection ConditionTrouble Area
P0717
ECM detects conditions (a), (b) and (c) continuity for 5 sec. or
more: (1–trip detection logic)
(a) Vehicle speed: 50 km/h (31 mph) or more
(b) Park/neutral position switch (NSW, R and L) is OFF
(c) Speed sensor (NT): less than 300 rpm
Open or short in transmission revolution sensor NT (speed
sensor NT) circuit

Transmission revolution sensor NT (speed sensor NT)

ECM
Reference (Using an oscilloscope):
Check the waveform between the terminals NT+ and NT–
of the ECM connector.
Standard: Refer to the illustration.
TerminalNT+ – NT–
Tool setting5V/DIV, 0.5ms/DIV
Vehicle conditionVehicle speed 20 km/h (12 mph)
MONITOR DESCRIPTION
The input speed sensor detects the transmission input shaft speed. The ECM determines the gear shift tim-
ing based on a comparison of the input speed sensor (input shaft speed) with the output speed sensor (out-
put shaft speed).
When the output shaft speed is higher then the expected value and the input shaft speed is 300 rpm or less
while running with the shift in the D position, the ECM will conclude that there is malfunction of the input tur-
bine speed sensor (NT). The ECM will illuminate the MIL.
WIRING DIAGRAM
05KB1–02

BR3795OK NG
C58536
1 2
Sensor Side:
(Connector Front View):
T4
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–259
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INSPECTION PROCEDURE
1 INSPECT SPEED SENSOR INSTALLATION
(a) Check the speed sensor installation.
OK:
The installation bolt is tightened properly and there is
no clearance between the sensor and transaxle case.
NG REPLACE SPEED SENSOR(NT)
OK
2 INSPECT SPEED SENSOR(NT)
(a) Disconnect the speed sensor connector from the trans-
axle.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
20 C (68 F)
1 – 2560 to 680 Ω
NG REPLACE SPEED SENSOR(NT)
OK

C95812
NT+
NT–
ECM:
E13
E12E10E9
05–260–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
3 CHECK HARNESS AND CONNECTOR(SPEED SENSOR – ECM)
(a) Connect the speed sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
20 C (68 F)
E12 – 26 (NT+) – E12 – 34 (NT–)560 to 680 Ω
(d) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
E12 – 26 (NT+) – Body ground10 kΩ or higher
E12 – 34 (NT–) – Body ground↑
NG REPAIR OR REPLACE HARNESS OR
CONNEC TOR ( SEE PAGE 01–32 )
OK
REPLACE ECM