DTC P0722 / P1736 / P1737

Precautions: Precautions for Diagnosing Trouble · Precautions for Disassembly and Reassembly · Precautions for Transmission / Transaxle · General safety (00)

DTC Detecting Condition and Trouble Area

DTC detecting condition	Trouble area
P0722: Output Speed Sensor Circuit No Signal Output shaft speed sensor signal is not input even if input shaft speed sensor signal is input. (1 D/C detection logic)	•Output shaft speed sensor •Solenoid harness with ATF temperature sensor •TCM
P1736: Output Speed Sensor Circuit Low Output shaft speed sensor signal circuit is open or shorted to ground. (1 D/C detection logic)
P1737: Output Speed Sensor Circuit High Output shaft speed sensor signal circuit is shorted to power supply. (1 D/C detection logic)

Circuit Diagram

[A]:	Solenoid harness connector (View: [a])	A2:	Output shaft speed sensor (–) circuit	3.	A/T
[B]:	Output shaft speed sensor connector (View: [a])	1.	TCM	4.	Output shaft speed sensor
A1:	Output shaft speed sensor (+) circuit	2.	CPU

DTC Confirmation Procedure

P0722

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test using 2 persons, a driver and a tester.

NOTE:

Check that the following condition is met in this “DTC Confirmation Procedure”.

•DTC U0073 or U0100 is not detected.

1)Warm up engine to normal operating temperature.

2)Drive vehicle at approx. 30 km/h (19 mile/h) for 5 minutes.

P1736 / P1737

1)Set ignition “ON” for 10 sec.

DTC Troubleshooting

Step	Action	Yes	No
1	Was “A/T Control System Check” performed?	Go to Step 2.	Go to A/T Control System Check.
2	Scan tool parameter check 1)Warm up engine to normal operating temperature. 2)Drive vehicle. 3)Check “Input Shaft Revolution” and “Output Shaft Revolution” using “Data list” mode on SUZUKI scan tool. 4)Check that “Output Shaft Revolution” varies depending on “Input Shaft Revolution”. Is check result OK?	Check for intermittent trouble.	Go to Step 3.
3	Solenoid harness check 1)Remove TCM. 2)Remove transaxle side oil pan. 3)Disconnect output shaft speed sensor connector. 4)Check for proper terminal connections to solenoid harness connector and output shaft speed sensor connector. 5)If connections are OK, check the following points. •Resistance of “A1” and “A2” circuits: less than 1 Ω •Resistance between each of “A1” and “A2” circuits and ground: infinity •Resistance between “A1” circuit terminal and other terminal at solenoid harness connector: infinity •Resistance between “A2” circuit terminal and other terminal at solenoid harness connector: infinity •Voltage of “A1” and “A2” circuits: approx. 0 V (When ignition is “ON”) Is check result OK?	Go to Step 4.	Replace solenoid harness with ATF temperature sensor.
4	Output shaft speed sensor check 1)Check output shaft speed sensor. Is check result OK?	Substitute a known-good TCM and recheck DTC.	Replace output shaft speed sensor.