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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