DTC U1300[88] Local CAN bus Off (Radar Sensor (Right))

1. Radar sensor system check

Refer to "75.Driver Assistance System 10W.Troubleshooting(Radar Sensor (Right)) Diagnostic system check-radar sensor system".

2. Prioritized DTC check

1) Connect the scan tool.

2) Turn ON the ignition switch.

3) Observe the DTC information with a scan tool. Is radar sensor (Left) or radar sensor (Right) DTC C1106[04] set at the same time?

Yes

Go to the applicable DTC diagnosis.

Refer to "75.Driver Assistance System 10W.Troubleshooting(Radar Sensor (Left)) DTC C1106[04] Internal Error".

Refer to "75.Driver Assistance System 10W.Troubleshooting(Radar Sensor (Right)) DTC C1106[04] Internal Error".

No

=>Go to Local CAN communication circuit inspection.

3. Local CAN communication circuit inspection

1) Inspect the Local CAN communication circuit between the radar sensor (Left) (pins 7 and 8 of R41) and the radar sensor (Right) (pins 7 and 8 of R40) for the following. Is the result normal?

Refer to "LHD Radar Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "LHD Radar Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Radar sensor harness connector inspection.

No

Repair the circuit as necessary.

=>Go to Repair verification.

4. Radar sensor harness connector inspection

1) Inspect for poor connections at the radar sensor (Left) harness connector (pins 7 and 8 of R41) and radar sensor (Right) harness connector (pins 7 and 8 of R40). Is the connection status normal?

Refer to "LHD Radar Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "LHD Radar Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Current DTC check.

No

Repair the connections as necessary.

=>Go to Repair verification.

5. Current DTC check

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. Is a DTC set?

Yes

=>Go to Radar sensor (Left) and radar sensor (Right) replacement.

No

=>Go to Repair verification.

6. Radar sensor (Left) and radar sensor (Right) replacement

Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. radar sensor removal".

Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. radar sensor installation".

Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. radar sensor setting".

Procedure completion

=>Go to Repair verification.

7. 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.