Nissan Rogue (T33) 2021-Present Service Manual: U2a8c-88 Ethernet Circuit
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms | DTC detected condition | |
|---|---|---|---|
| U2A8C-88 | Ethernet circuit | Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | — | ||
| Threshold | Lost ethernet communication with AV control unit | ||
| Diagnosis delay time | 120 seconds or more | ||
POSSIBLE CAUSE
-
Ethernet harness
-
8CH CAN gateway
-
AV control unit
FAIL-SAFE
8CH CAN gateway stops transmitting
Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
-
Ignition switch ON and wait at least 180 seconds or more.
-
Select “Self Diagnostic Result” mode of “8ch CAN GATEWAY 3” using CONSULT.
-
Check DTC.
Is DTC U2A8C–88 detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
DTC Diagnosis Procedure
CHECK CONNECTOR
-
Ignition switch OFF.
-
Check the ethernet harness connectors and terminals of 8CH CAN gateway and AV control unit for damage or looseness.
Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace the malfunction part, securely lock the harness connector.
PERFORM ALL DTC READING
-
Ignition switch ON.
-
Perform “All DTC Reading” with CONSULT.
-
Check if any DTCs of ethernet (DTC “U2754-88”) are detected in “Self Diagnostic Result” of “MULTI AV”
Are any DTCs of ethernet detected?
YES>>Replace the 8CH CAN gateway (Refer to Removal and Installation), and GO TO 3.
NO>>Replace the AV control unit. Refer to Removal and Installation.
PERFORM DTC CONFIRMATION PROCEDURE-1
-
Erases all self-diagnosis results with CONSULT.
-
Perform DTC confirmation procedure again. Refer to Confirmation Procedure.
Is DTC “U2A8C-88” detected as the current malfunction?
YES>>Replace the AV control unit (Refer to Removal and Installation), and GO TO 4.
NO>>INSPECTION END
PERFORM DTC CONFIRMATION PROCEDURE-2
-
Erases all self-diagnosis results with CONSULT.
-
Perform DTC confirmation procedure again. Refer to Confirmation Procedure.
Is DTC “U2A8C-88” detected as the current malfunction?
YES>>Replace the ethernet harness between 8CH CAN gateway and AV control unit.
NO>>INSPECTION END
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Diagnosis Procedure
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
Around view monitor control unit
Sonar control unit
ADAS control unit 2
...
