2007 TOYOTA SIENNA relay

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–87
AX
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester together with the CAN VIM (controller area network vehicle
interface module) to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SHIFT".
(g) According to the display on the tester, perform the "ACTIVE TEST".
HINT:
While driving, the shift position can be forcibly changed with the intelligent tester.
Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you
to confirm the problem (See page AX-30).
HINT:
• This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
• The shift position commanded by the ECM is shown in the DATA LIST/SHIFT display on the intelligent
tester.
(a) Connect the intelligent tester together with the CAN VIM
(controller area network vehicle interface module) to the
DLC3.
(b) Turn the ignition switch to the ON position and turn the
OBD II scan tool or the intelligent tester main switch ON.
(c) When you use intelligent tester:
Select the item "DIAGNOSIS / ENHANCED OBD II /
DTC INFO / CURRENT CODES".
(d) Read the DTCs using the OBD II scan tool or the
intelligent tester.
Result
Tester Display Test Part Control Range Diagnostic Note
SHIFT[Test Details]
Operate the shift solenoid valve and set the each
shift position by yourself.
[Vehicle Condition]
• IDL: ON
• Less than 50 km/h (31 mph)
[Others]
• Press "
" button: Shift up
• Press "
" button: Shift down1st/2nd/3rd/4th/5thPossible to check the
operation of the shift
solenoid valves.
1CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0771)
Result Proceed to
P0771 A
P0771 and other DTCs B

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–91
AX
ON malfunction (A):
ON malfunction (B):
ON malfunction (C):
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester together with the CAN VIM (controller area network vehicle
interface module) to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SHIFT".
(g) According to the display on the tester, perform the "ACTIVE TEST".
HINT:
While driving, the shift position can be forcibly changed with the intelligent tester.
Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you
to confirm the problem (See page AX-30).
HINT:
• This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
• The shift position commanded by the ECM is shown in the DATA LIST/SHIFT display on the intelligent
tester.
(a) Connect the intelligent tester together with the CAN VIM
(controller area network vehicle interface module) to the
DLC3.
(b) Turn the ignition switch to the ON position and turn the
OBD II scan tool or the intelligent tester main switch ON.
(c) When you use intelligent tester:
Input (turbine) speed/Intermediate shaft speed 2.72 to 2.86
Input (turbine) speed - Intermediate shaft speed 700 rpm or more
Input (turbine) speed - Intermediate shaft speedLess than -500 rpm
or
700 rpm or more
Tester Display Test Part Control Range Diagnostic Note
SHIFT[Test Details]
Operate the shift solenoid valve and set the each
shift position by yourself.
[Vehicle Condition]
• IDL: ON
• Less than 50 km/h (31 mph)
[Others]
• Press "
" button: Shift up
• Press "
" button: Shift down1st/2nd/3rd/4th/5thPossible to check the
operation of the shift
solenoid valves.
1CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0776)

AX–104U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester together with the CAN VIM (controller area network vehicle
interface module) to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SHIFT".
(g) According to the display on the tester, perform the "ACTIVE TEST".
HINT:
While driving, the shift position can be forcibly changed with the intelligent tester.
Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you
to confirm the problem (See page AX-30).
HINT:
• This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
• The shift position commanded by the ECM is shown in the DATA LIST/SHIFT display on the intelligent
tester.
(a) Connect the intelligent tester together with the CAN VIM
(controller area network vehicle interface module) to the
DLC3.
(b) Turn the ignition switch to the ON position and turn the
OBD II scan tool or the intelligent tester main switch ON.
(c) When you use intelligent tester:
Select the item "DIAGNOSIS / ENHANCED OBD II /
DTC INFO / CURRENT CODES".
(d) Read the DTCs using the OBD II scan tool or the
intelligent tester.
Result
Tester Display Test Part Control Range Diagnostic Note
SHIFT[Test Details]
Operate the shift solenoid valve and set the each
shift position by yourself.
[Vehicle Condition]
• IDL: ON
• Less than 50 km/h (31 mph)
[Others]
•Press "
" button: Shift up
•Press "" button: Shift down1st/2nd/3rd/4th/5thPossible to check the
operation of the shift
solenoid valves.
1CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0796)
Result Proceed to
P0796 A
P0796 and other DTCs B

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–127
AX
DESCRIPTION
The shift solenoid valve DSL 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 controls operation of the lock-up clutch.
MONITOR DESCRIPTION
Torque converter lock-up is controlled by the ECM based on engine rpm, engine load, engine
temperature, vehicle speed, transmission temperature, and shift range selection. The ECM determines
the lock-up status of the torque converter by comparing the engine rpm (NE) to the input turbine rpm (NT).
The ECM calculates the actual transmission gear by comparing input turbine rpm (NT) to counter gear
rpm (NC). When conditions are appropriate, the ECM requests "lock-up" by applying control voltage to the
shift solenoid DSL. When the DSL is opened, it applies pressure to the lock-up relay valve and locks the
torque converter clutch. If the ECM detects an open or short in the DSL solenoid circuit, the ECM
interprets this as a fault in the DSL solenoid or circuit. The ECM will turn on the MIL and store the DTC.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
P2769: Range check (Low resistance):
P2770: Range check (High resistance):
DTC P2769Torque Converter Clutch Solenoid Circuit Low
(Shift Solenoid Valve DSL)
DTC P2770Torque Converter Clutch Solenoid Circuit High
(Shift Solenoid Valve DSL)
DTC No. DTC Detection Condition Trouble Area
P2769ECM detects short in solenoid valve DSL circuit (0.1
sec.) when solenoid valve DSL is operated (2-trip
detection logic)• Short in shift solenoid valve DSL circuit
• Shift solenoid valve DSL
•ECM
P2770ECM detects open in solenoid valve DSL circuit (0.1
sec.) when solenoid valve DSL is not operated (2-trip
detection logic)• Open in shift solenoid valve DSL circuit
• Shift solenoid valve DSL
•ECM
Related DTCsP2769: Shift solenoid valve DSL/Range check (Low resistance)
P2770: Shift solenoid valve DSL/Range check (High resistance)
Required sensors/Components Shift solenoid valve DSL
Frequency of operation Continuous
Duration 0.064 sec. or more
MIL operation 2 driving cycles
Sequence of operation None
The monitor will run whenever this DTC is not present. None
Shift solenoid valve DSLON
Solenoid current cut status Not cut
Battery voltage8 V or more
Ignition switchON
Sta r t e rOFF
The monitor will run whenever this DTC is not present. None
Shift solenoid valve DSLON
Battery voltage8 V or more
Ignition switchON

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–67
AX
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, air-flow meter, turbine (input) speed sensor,
intermediate (counter) shaft speed sensor and crankshaft position sensor to monitor the engagement
condition of the lock-up clutch.
Then the ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the
ECM memory to detect a mechanical problems of the shift solenoid valve DSL, valve body and torque
converter clutch.
MONITOR DESCRIPTION
Torque converter lock-up is controlled by the ECM based on the speed sensor (NT), speed sensor (NC),
engine rpm, engine load, engine temperature, vehicle speed, transmission temperature, and gear
selection. The ECM determines the lock-up status of the torque converter by comparing the engine rpm
(NE) to the input turbine rpm (NT). The ECM calculates the actual transmission gear by comparing input
turbine rpm (NT) to counter gear rpm (NC). When conditions are appropriate, the ECM requests "lock-up"
by applying control voltage to the shift solenoid DSL. When the DSL is turned on, it applies pressure to the
lock-up relay valve and locks the torque converter clutch.
If the ECM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not
requested, the ECM interprets this as a fault in the shift solenoid valve DSL or lock-up system
performance. The ECM will turn on the MIL and store the DTC.
HINT:
Example:
When any of the following is met, the system judges it as a malfunction.
• There is a difference in rotation between the input side (engine speed) and output side (input turbine
speed) of the torque converter when the ECM commands lock-up.
(Engine speed is at least 100 rpm greater than input turbine speed.)
• There is no difference in rotation between the input side (engine speed) and output side (input turbine
speed) of the torque converter when the ECM commands lock-up off.
(The difference between engine speed and input turbine speed is less than 35 rpm.)
MONITOR STRATEGY
DTC P0741Torque Converter Clutch Solenoid Performance
(Shift Solenoid Valve DSL)
DTC No. DTC Detection Condition Trouble Area
P0741Lock-up does not occur when driving in the lock-up
range (normal driving at 80 km/h [50 mph]), or lock up
remains ON in the lock-up OFF range.
(2-trip detection logic)• Shift solenoid valve DSL remains open or closed
• Valve body is blocked
• Torque converter clutch
• Automatic transaxle (clutch, brake or gear etc.)
• Line pressure is too low
Related DTCsP0741:
Shift solenoid valve DSL/OFF malfunction
Shift solenoid valve DSL/ON malfunction
Required sensors/ComponentsShift solenoid valve DSL, Speed sensor (NT), Speed sensor (NC),
Crankshaft position sensor (NE), Throttle position sensor (VPA1),
Mass air flow sensor (MAF), Transmission temperature sensor
(THO1), Engine coolant temperature sensor (ECT)
Frequency of operation Continuous
DurationOFF malfunction (A)
Continuous.
OFF malfunction (B)
1 sec.
OFF malfunction (C)
3.5 sec.
ON malfunction
1.8 sec.

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–69
AX
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester together with the CAN VIM (controller area network vehicle
interface module) to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST".
(g) According to the display on the tester, perform the "ACTIVE TEST".
HINT:
• This test can be conducted when the vehicle speed is 60 km/h (37 mph) or more.
• This test can be conducted in the 5th gear.
(h) Lightly depress the accelerator pedal and check that the engine speed does not change
abruptly.
HINT:
• When changing the accelerator pedal opening angle while driving, if the engine speed does
not change, lock-up is on.
• Slowly release, but not fully, the accelerator pedal in order to decelerate. (Fully releasing the
pedal will close the throttle valve and lock-up may be turned off.)
Tester Display Test Part Control Range Diagnostic Note
LOCK UP[Test Details]
Control the shift solenoid DSL to set the automatic
transaxle to the lock-up condition.
[Vehicle Condition]
• Throttle valve opening angle: Less than 35 %
• Vehicle Speed: 60 km/h (37 mph) or more, and
5th gearON/OFFPossible to check the DSL
operation.
G029214E02

AX–74U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
OFF malfunction:
ON malfunction:
TYPICAL MALFUNCTION THRESHOLDS
Either of the following conditions is met: OFF malfunction or ON malfunction
OFF malfunction:
2 detections are necessary per driving cycle:
1st detection; temporary flag ON
2nd detection; pending fault code ON
ON malfunction:
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester together with the CAN VIM (controller area network vehicle
interface module) to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SHIFT".
(g) According to the display on the tester, perform the "ACTIVE TEST".
HINT:
While driving, the shift position can be forcibly changed with the intelligent tester.
Shift solenoid valve SL3 circuit Not circuit malfunction
Shift solenoid valve S4 circuit Not circuit malfunction
Shift solenoid valve SR circuit Not circuit malfunction
Shift solenoid valve DSL circuit Not circuit malfunction
Electronic throttle systemNot circuit malfunction
ECM selected gear1st
Vehicle speedLess than 40 km/h (24.9 mph)
Throttle valve opening angle4.5% or more at engine speed 1,900 rpm
(Varies with engine speed)
ECM selected gear2nd
Throttle valve opening angle4.5% or more at engine speed 1,900 rpm
(Varies with engine speed)
Input (turbine) speed/Intermediate shaft speed 1.49 to 1.63
Input (turbine) speed/Intermediate shaft speed 2.72 to 2.86

AX–82U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
OFF malfunction (A):
OFF malfunction (B):
ON malfunction (A):
ON malfunction (B):
TYPICAL MALFUNCTION THRESHOLDS
Either of the following conditions is met: OFF malfunction (A) and (B), or ON malfunction (A) and
(B)
2 detections are necessary per driving cycle:
1st detection; temporary flag ON
2nd detection; pending fault code ON
OFF malfunction (A):
OFF malfunction (B):
ON malfunction (A):
ON malfunction (B):
INSPECTION PROCEDURE
HINT:
Using the intelligent tester to perform ACTIVE TEST allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing ACTIVE TEST
early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while
performing ACTIVE TEST.
1. PERFORM ACTIVE TEST
(a) Warm up the engine.
(b) Turn the ignition switch off.
Shift solenoid valve S4 circuit Not circuit malfunction
Shift solenoid valve SR circuit Not circuit malfunction
Shift solenoid valve DSL circuit Not circuit malfunction
Electronic throttle systemNot circuit malfunction
ECM selected gear5th
Throttle valve opening angle 5% or more
Vehicle speed10 km/h (6.2 mph) or more
ECM lock-up commandON
ECM selected gear3rd, 4th or 5th
Throttle valve opening angle 10% or more
Vehicle speed 25 to 100 km/h (15.5 to 62.1 mph)
ECM selected gear4th or 5th
Throttle valve opening angle4.5% or more at engine speed 1,900 rpm
(Varies with engine speed)
ECM selected gear4th
Throttle valve opening angle 5% or more
Vehicle speed10 km/h (6.2 mph) or more
Intermediate shaft speed/Output speed 1.44 to 1.58
Difference between engine speed and input (turbine) speed Less than 35 rpm
Input (turbine) speed/Intermediate shaft speed 0.64 to 0.74
Intermediate shaft speed/Output speed 1.02 to 1.16