Nissan Sentra B18 (2020-2025) Service Manual: U2384 Can Comm Circuit
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
|
|
U2384 |
CAN comm err (eVTC) [CAN comm err (eVTC)] |
Diagnosis condition |
Ignition switch ON |
|
Signal (terminal) |
CAN communication signal |
||
|
Threshold |
ECM is not receiving CAN communication signal other than OBD (emission related diagnosis). |
||
|
Diagnosis delay time |
2 seconds or more |
||
POSSIBLE CAUSE
-
Harness or connectors (CAN communication line is open or shorted)
-
Electric intake valve timing control module
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
-
CHECK DTC PRIORITY
If DTC U2384 is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.
Is DTC P0607 detected?
YES >>Proceed to DTC Description.
NO >>GO TO 2.
-
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>>GO OT 3.
-
-
PERFORM DTC CONFIRMATION PROCEDURE
-
Turn ignition switch ON and wait at least 3 seconds.
-
Check 1st trip DTC.
Is DTC U2384 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
DTC Diagnosis Procedure
-
CHECK DTC PRIORITY
If DTC U2384 is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.
Is DTC P0607 detected?
YES >>Proceed to DTC Description.
NO >>Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.
Other materials:
Unit Removal and Installation. Transaxle Assembly
Transaxle Assembly
Exploded View
Exploded View
1.
CVT fluid charging pipe cap
2.
CVT fluid charging pipe
...
Power Supply and Ground Circuit
A/c Auto Amp.
Diagnosis Procedure
Diagnosis Procedure
CHECK A/C AUTO AMP. GROUND CIRCUIT
FOR OPEN
Ignition switch OFF.
Disconnect A/C auto amp. connector.
...
Basic Inspection
Diagnosis and Repair Work Flow
Work Flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
INTERVIEW FOR MALFUNCTION
It is also important to clarify the customer
concerns before starting the inspection. Interview the
customer about the concerns carefully and ...