Nissan Rogue (T33) 2021-Present Service Manual: U0140 Can Communication
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| U0140 | 00 |
LOST COMM (BCM) (Lost Communication With Body Control Module) |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | — | |||
| Threshold | When ECM is not receiving CAN communication signal of OBD (emission-related diagnosis) with BCM. | |||
| Diagnosis delay time | 30 seconds or more | |||
POSSIBLE CAUSE
-
Harness or connectors (CAN communication line is open or shorted.)
-
BCM
FAIL-SAFE
Engine Control System
Not applicable
Stop/Start System
When a DTC is detected, the stop/start indicator lamp blinks slowly and the stop/start system operation is prohibited.
When ECM detects error while operating the stop/start system, ECM restarts the engine.
DTC Confirmation Procedure
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Ignition switch OFF and wait at least 10 seconds.
-
Ignition switch ON.
-
Ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
-
Ignition switch ON and wait at least 10 seconds.
-
Check DTC.
Is DTC 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
Perform trouble diagnosis of CAN communication system. Refer to Trouble Diagnosis Flow Chart.
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Basic Inspection. System Initialization
Description
If any of the following operations are performed, the initialization
is necessary for normal operation of power window system. Refer to Work
Procedure.
When front power window motor (driver side) replaced.
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Brake Warning Lamp
Component Function Check
CHECK BRAKE WARNING LAMP FUNCTION (1)
Check that brake warning lamp in combination meter turns ON for
approximately 1 second after ignition switch is ON (before engine
start).
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Refer to Diagnosis Pr ...
