Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne di at cip1700
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DI-196
DIAGNOSTICS - AUTOMATIC TRANSMISSION
DI0SZ-27
DTC P1700 Speed Sensor No. 2 Malfunction
CIRCUIT DESCRIPTION
The No. 2 vehicle speed sensor detects the rotation speed of the transmission output shaft and sends sig-
nals to the ECM. The ECM determines the vehicle speed based on these signals.
An AC voltage is generated in the No. 2 vehicle speed sensor coil as the rotor mounted on the output shaft
rotates, and this voltage is sent to the ECM.
The gear shift point and lock-up timing are controlled by the ECM based on the signals from this vehicle
speed sensor and the throttle position sensor signal.
If the No. 2 vehicle speed sensor malfunctions, the ECM uses input signals from the No. 1 vehicle speed
sensor as a back-up signal.
Rotor
Rotor
No. 2 Vehicle Speed Sensor
ECM
No. 2 Vehicle Speed Sensor D00010
DTC No. DTC Detecting Condition Trouble Area
All conditions below are detected 500 times or more continu-
ously (2 - trip detection logic).
1. No signal from No. 2 vehicle speed sensor is input to ECM
while 4 pulses of No. 1 vehicle speed sensor signal are S Open or short in No. 2 vehicle speed sensor circuit
P1700 sent. S No. 2 vehicle speed sensor
2. Vehicle speed: 9 km/h (5.6 mph) or more for at least 4 se- S ECM
conds.
3. Park/neutral position switch: OFF (Other than P or N)
4. Transfer position: Other than N position (A340F only)
HINT:
Wave from between terminals SP2+ and SP2- when vehicle
speed is approx. 60 km/h (37 mph).
0V 5 V / Div.
2 msec. / Div.
AT8761
2002 4RUNNER (RM887U)
Author : Date : 372
DI-197
DIAGNOSTICS - AUTOMATIC TRANSMISSION
WIRING DIAGRAM
ECM
Y-R 23 SP2+
E10
1
No. 2
Vehicle Speed Sensor
2 22 SP2-
W-R
E10
D10509
2002 4RUNNER (RM887U)
Author : Date : 373
DI-198
DIAGNOSTICS - AUTOMATIC TRANSMISSION
INSPECTION PROCEDURE
1 Check vehicle speed value or resistance between terminals SP2+ and SP2- of
ECM.
When using OBD II scan tool or hand-held tester:
PREPARATION:
(a) Remove the DLC3 cover.
(b) Connect an OBD II scan tool or hand-held tester to the
DLC3.
(c) Start the engine and turn OBD II scan tool or hand-held
tester main switch ON.
CHECK:
Drive the vehicle and read vehicle speed value.
OK:
Vehicle speed matches tester speed value.
When not using OBD II scan tool or hand-held tester:
SP2+ SP2-
PREPARATION:
Disconnect the connector from the ECM.
CHECK:
Check resistance between terminals SP2+ and SP2- of ECM.
OK:
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