Suzuki SWIFT RS415 2017, Service Manual

Page: 591 / 1257

Automatic Transmission: 5A-51
DTC P0722: Output Speed Sensor (VSS) Circuit No Signal
S4RS0A5104025
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory and start engine.
3) Shift selector lever to “D” range and drive vehicle at 50 km/h (31 mile/h) or more vehicle speed at least for 3
minutes.
4) Stop vehicle and check DTC.
DTC Troubleshooting
1. TCM 3. To ECM
2. Output shaft speed sensor (VSS) [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
No output shaft speed sensor signal is detected although
input shaft speed sensor signals are detected while vehicle is
running at 5 km/h (3 mile/h) or more in vehicle speed with
“D”, “2” or “L” range. • Output shaft speed sensor or its circuit malfunction
• Damaged sensor gear (driven gear)
• Damaged output shaft speed sensor (VSS) drive
gear
• TCM
IG1
12V
PPL C35-25
2
C34
25
C35
[A]
1
BLK/RED
YEL/BLK
3
I4RS0A510013-
Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check: ”.
2 Check output shaft speed sensor (VSS) power circuit
1) Turn ignition switch OFF.
2) Disconnect output shaft speed sensor connector.
3) Turn ignition switch ON.
4) Measure voltage between “BLK/RED” wire terminal of
disconnected output shaft speed sensor harness side
connector and ground.
Is it 10 – 14 V?
Go to Step 3. “BLK/RED” wire open or
shorted to ground.