Nissan Rogue (T33) 2021-Present Service Manual: U2340-87 Can Comm Circuit
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms | DTC detected condition | |
|---|---|---|---|
| U2340-87 | CAN communication error (ECM) | Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | CAN communication signal | ||
| Threshold | Lost communication with ECM | ||
| Diagnosis delay time | 4 seconds or more | ||
POSSIBLE CAUSE
-
Harness or connector
(CAN communication line)
-
8CH CAN gateway
-
ECM malfunction
FAIL-SAFE
System continue normal control.
Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
-
Ignition switch ON and wait at least 4 seconds or more.
-
Select “Self Diagnostic Result” mode of “8ch CAN GATEWAY 2” using CONSULT.
-
Check DTC.
Is DTC U2340-87 detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Intermittent Incident
NO-2>>Confirmation after repair: INSPECTION END
DTC Diagnosis Procedure
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
-
Ignition switch ON.
-
Erase DTC.
-
Perform DTC confirmation procedure again. Refer to Confirmation Procedure.
-
Check DTC.
Is DTC “U2340-87” detected?
YES>>Perform trouble diagnosis procedure for CAN communication system. Refer to Trouble Diagnosis Flow Chart.
NO>>INSPECTION END
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Diagnosis Procedure
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Check “Power back door setting” is in the OFF.
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Set “Power back door setting” to “OFF”.
REPLACE AUTOMATIC BACK DOOR CONTROL UNIT
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DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U1CFA
00
Lost communication with USM in secondary ECU
(Lost communication with USM in secondary ECU)
Diagnosis condition
Ignition switch ON
Signal (termin ...
