1) Connect the scan tool.
2) Turn ON the ignition switch.
3) Operate the shift lever to the position shown in the following.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
Replace the front outer left sonar sensor.
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. sonar sensor removal".
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. sonar sensor installation".
No
Go to Intermittent conditions of parking aid system.
Refer to "233.Driver Assistance System 46D.Symptom(Parking Aid) intermittent conditions of parking aid system".
1) Clear the DTC with a scan tool.
2) Turn OFF the ignition switch for 30 seconds or more.
3) Turn ON the ignition switch.
4) Operate the shift lever to the position shown in the following.
5) Observe the DTC information with a scan tool.