DTC U0046[88] CAN Communication (IBS (RZ4E-TC))

1. IBS system check

Refer to "51.Engine Control 1A.Troubleshooting(IBS (RZ4E-TC)) diagnostic system check-IBS".

2. Current DTC check

1) Connect the scan tool.

2) Turn OFF the ignition switch for 15 seconds or more.

3) Turn ON the ignition switch.

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

Yes (Models with radar sensors/stereo cameras)

Referring to DTC U0055[88] in the central gateway control unit, inspect the CAN circuit.

Refer to "64.Body Control 10I.Troubleshooting(Central GateWay) DTC U0055[88] CAN Communication Malfunction (CAN 5 Bus Off)".

Yes (Models without radar sensors and stereo cameras)

=>Go to CAN communication system inspection.

No

Go to Intermittent conditions of IBS.

Refer to "202.Engine 15D.Symptom(IBS (RZ4E-TC)) intermittent conditions of IBS".

3. CAN communication system inspection

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

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.

4. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 30 seconds or more.

3) Start and idle the engine.

4) Observe the DTC information with a scan tool.