LAN SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U1311 CAN-LS METER UNIT DATA ABNORMAL

DTC DETECTING CONDITION:

Error data is received from combination meter.

TROUBLE SYMPTOM:

Defective data from combination meter occurs.

WIRING DIAGRAM:

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1.CHECK DTC.

Read the DTC of body integrated unit using Subaru Select Monitor.

Is DTC U1301 or U1302 displayed?

Perform the diagnosis according to DTC.

2.CHECK DTC.

Read the DTC of body integrated unit using Subaru Select Monitor.

Is U1311 current malfunction?

3.CHECK DTC.

1) Turn the ignition switch to OFF.

2) Disconnect the combination meter connector (i10).

3) Read the DTC of body integrated unit using Subaru Select Monitor.

Is U1311 current malfunction?

Replace the combination meter.

4.CHECK HARNESS.

1) Shake the harness used for low speed CAN communication circuit.

2) Read the DTC of body integrated unit using Subaru Select Monitor.

Is U1311 current malfunction?

Repair or replace the harness.

5.CHECK CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect all connectors (i84, i10, i88, i85 or i50, B419) that are connected to low speed CAN communication line.

Is there poor contact in connector terminal?

Repair the connector terminal, or replace harness.

Temporary poor contact occurs.