Toyota Tundra (2015 year). Manual — part 579
The output speed sensor SP2 monitors the output shaft speed. The ECM controls the gear shift point and the lock
up timing based on the signals from the output speed sensor SP2 and throttle position sensor.
If the ECM detects no signal from the output speed sensor SP2 even while the vehicle is moving, it will conclude
Related DTCs
P0722: Speed sensor SP2/Verify pulse input
Required Sensors/Components
Speed sensor (SP2)
Duration
5 seconds
MIL operation
2 driving cycles
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not present
None
Vehicle speed at vehicle speed sensor
9 km/h (5.59 mph) or more
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
TYPICAL MALFUNCTION THRESHOLDS
Speed sensor signal
No signal
COMPONENT OPERATING RANGE
Vehicle speed at output speed sensor
9 km/h (5.59 mph) or more
WIRING DIAGRAM
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
INSPECTION PROCEDURE
NOTICE:
Perform the universal trip to clear permanent DTCs
.
1. DATA LIST
HINT:
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 Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Engine and ECT / Data List.
(g) According to the display on the Techstream, read the Data List.
Engine and ECT:
TESTER
DISPLAY
MEASUREMENT
ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC
NOTE
SPD (SP2)
Output shaft speed/
Min.: 0 km/h (0 mph)
Max.: 255 km/h (158
Vehicle stopped: 0 km/h (0 mph) (output shaft speed
is equal to vehicle speed)
-
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
TESTER
DISPLAY
MEASUREMENT
ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC
NOTE
mph)
HINT:
SPD (SP2) is always 0 while driving:
Open or short in the sensor or circuit.
The SPD (SP2) value displayed on the Techstream is much lower than the actual vehicle speed:
Sensor trouble, improper installation, or intermittent connection trouble in the circuit.
PROCEDURE
1.
INSPECT SPEED SENSOR SP2 INSTALLATION
(a) Check the speed sensor SP2 installation.
OK:
The installation bolt is tightened properly and there is no
clearance between the sensor and transmission case.
NG
SECURELY INSTALL OR REPLACE SPEED SENSOR
SP2
2.
INSPECT SPEED SENSOR SP2
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OK
(a) Disconnect the D66 speed sensor connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
1 - 2
20°C (68°F)
560 to 680 Ω
NG
REPLACE SPEED SENSOR SP2
3.
CHECK HARNESS AND CONNECTOR (SPEED SENSOR SP2 - ECM)
(a) Disconnect the D74 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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