Dtc P0722: Output Speed Sensor (Vss) Circuit No Signal - Suzuki SX4 Service Manual
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (278 pages) ,
- Owner's manual (18 pages)
Table of Contents
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Step
3
Inspect input shaft speed sensor
1) Inspect input shaft speed sensor referring to "Input Shaft
Speed Sensor Inspection".
Is result satisfactory?
4
Check visually input shaft speed sensor and direct
clutch drum for the following
• No damage
• No foreign material attached
• Correct installation
Are they in good condition?
DTC P0722: Output Speed Sensor (VSS) Circuit No Signal
Wiring Diagram
1. TCM
2. Output shaft speed sensor (VSS)
DTC Detecting Condition and Trouble Area
DTC detecting condition
No output shaft speed sensor signal is detected although
input shaft speed sensor signals are detected with "D", "2" or
"L" range.
Action
I2RH0B510020-01
3
IG1
2
BLK/WHT
BLK/ORN
[A]
C06
12 11
3. To ECM
[A]: Terminal arrangement of TCM connector (viewed from harness side)
Automatic Transmission/Transaxle:
Yes
"WHT" or "BLK" circuit
open or short.
Intermittent trouble or
faulty TCM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good TCM and
recheck.
1
12V
PPL
C07-25
C07
I6RW0B510011-01
• Output shaft speed sensor or its circuit malfunction
• Damaged sensor gear (driven gear)
• Damaged output shaft speed sensor (VSS) drive
gear
• TCM
No
Replace input shaft
speed sensor.
Clean, repair or replace.
S7RW0A5104028
Trouble area
5A-53
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Table of Contents
Troubleshooting
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Do you have a question about the SX4 and is the answer not in the manual?
Questions and answers
Adjust throttle motor
The idle speed on a Suzuki SX4 should be controlled by the Idle Air Control Valve (IACV) rather than adjusting the idle screw on the throttle body, as the screw is factory set. Before using compressed air in the idle-air-bypass passages, the IACV should be removed to prevent damage to its delicate mechanism. If there is an issue with idle speed, checking the IACV function and referring to the SX4 service manual is recommended.
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I have an issue of crank but not starting When I scan it brought this codeU0100 Which means no communication thou crank sensor wire was cut off but it was fix back What could be wrong and what could be the solution,
increasing revs when changing gears
The Suzuki SX4 may have increasing revs when changing gears due to its drive-by-wire system and the difference in final drive ratios between the manual (4.41) and automatic (2.81) transmissions. This difference causes high cruising RPMs in the manual version and sluggishness in the automatic. Additionally, if the revs climb while going uphill, it may be due to the transmission downshifting or kicking out of overdrive. Other possible causes include low transmission fluid, abuse, or a faulty transmission design.
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My heater stopped working the blower **** is good, control unit ?
Possible issues with the heater in a Suzuki SX4 if the blower is working but the heater is not include:
1. Incorrect Temperature Output
- Temperature control cable broken or bent (non-A/C and manual A/C) → Check the temperature control cable.
- Temperature selector faulty (non-A/C and manual A/C) → Check the temperature selector.
- Incorrect installation of the temperature control cable (non-A/C and manual A/C) → Check and adjust the position as necessary.
- Temperature control door assembly broken → Repair the temperature control door assembly.
- Air ducts clogged → Repair air ducts.
- Heater core leaked or clogged → Replace the heater core.
- Heater hoses leaked or clogged → Replace heater hoses.
- Thermostat faulty → Check the thermostat.
- Temperature control actuator faulty (auto A/C) → Check the temperature control actuator.
- HVAC control module faulty (auto A/C) → Check the HVAC control module.
- Wiring or grounding faulty (auto A/C) → Repair as necessary.
2. Other Possible Causes
- Air flow control cable broken or bent → Check the air flow control cable.
Checking and addressing these components should help identify and resolve the heater issue.
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