DTC U0055[88] Vehicle Communication Bus (Parking Aid)

1. Parking aid system check

Refer to "75.Driver Assistance System 10W.Troubleshooting(Parking Aid) diagnostic system check - parking aid system controls".

2. Current DTC check

1) Connect the scan tool.

2) Turn ON the ignition switch.

3) Observe the DTC information with a scan tool. Is a DTC set?

Yes (Models with radar sensors/stereo cameras)

=>Go to Chassis CAN communication circuit inspection.

Yes (Models without radar sensors and stereo cameras)

=>Go to CAN communication circuit 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".

3. Chassis CAN communication circuit inspection

1) Perform chassis CAN communication circuit inspection.

Refer to "64.Body Control 10I.Troubleshooting(Central GateWay) chassis CAN communication circuit inspection".

Procedure completion

=>Go to Repair verification.

4. CAN communication circuit inspection

1) Perform Scan tool does not communicate with CAN device.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) scan tool does not communicate with CAN device (models without radar sensor and stereo camera)".

Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) scan tool does not communicate with CAN device (models without radar sensor and stereo camera)".

Procedure completion

=>Go to Repair verification.

5. Repair verification

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) Observe the DTC information with a scan tool.