1) Connect the scan tool.
2) Turn ON the ignition switch.
3) Operate the shift lever to the R position.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
=>Go to Wire harness and connector inspection.
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) Turn OFF the ignition switch.
2) Disconnect the parking aid system control unit harness connector (C16) and rear inner right sonar sensor harness connector (R44).
3) Inspect the wire harnesses and connectors for the following. Is the result normal?
Wire harness to be inspected
Inspection items
Refer to "LHD Parking Aid" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Parking Aid" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
=>Go to Parking aid system control unit replacement.
No
Repair the circuit and connection as necessary.
Note
Procedure completion
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 R position.
5) Observe the DTC information with a scan tool.