Suzuki Vitara (LY) 2016-2017 · Service Manual D16AA · Diagnostic Information and Procedures

Speed Signal Check

Precautions: General safety (00)

Troubleshooting
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 with 2 persons, a driver and a tester.
Step Action Yes No
1
Parameter check
1)When ignition is “OFF”, connect SUZUKI scan tool to DLC.
2)Perform a road test and drive vehicle at constant speed of 30 km/h (19 mile/h).
3)Check that “Vehicle Speed” displayed on SUZUKI scan tool is Approx. 30 km/h (19 mile/h).
Is check result OK?
End.
Go to Step 2.
2
DTC check
1)Check ESP® control module for DTC.
Is there any DTC related to wheel speed sensor?
Go to troubleshooting for applicable DTC.
Go to Step 3.
3
DTC check
1)Check ECM and ESP® control module for DTC.
Is there any DTC related to CAN?
Go to troubleshooting for applicable DTC.
Go to Step 4.
4
ECM replacement
1)Replace ECM. icon 
2)Recheck parameter referring to “Step 1”.
Is check result OK?
End.
Replace ESP® control module. icon