Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U2140-81 Can Comm Err (ecm)
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| U2140-81 |
CAN comm err (ECM) [Controller area network communication error (Engine control module)] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | CAN communication signal | ||
| Threshold | If air bag diagnosis sensor unit detects an error signal that is received from ECM via CAN communication | ||
| Diagnosis delay time | 2 seconds or more. | ||
POSSIBLE CAUSE
-
ECM
-
Air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
CHECK DTC PRIORITY
If DTC U2140-81 is displayed with Network-DTC, first perform the trouble diagnosis for Network-DTC.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable. Refer to DTC Index.
NO>>GO TO 2.
CHECK SELF DIAGNOSIS RESULT
CONSULT
-
Ignition switch ON.
-
Perform “Self diagnosis result” mode of “AIR BAG” using CONSULT.
Is malfunctioning part detected?
YES>>Refer to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End
Diagnosis Procedure
WARNING:
-
Before servicing, ignition switch OFF, disconnect battery negative terminal, and wait at least 3 minutes or more. (To discharge backup capacitor.)
-
Never use unspecified tester or other measuring device.
CHECK DTC PRIORITY
If DTC U2140-81 is displayed with Network-DTC, first perform the trouble diagnosis for Network-DTC.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable. Refer to DTC Index.
NO>>GO TO 2.
CHECK ECM SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self diagnosis result” of “ENGINE”.
Is any DTC detected?
YES>>Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index.
NO>>Replace air bag diagnosis sensor unit. Refer to Removal and Installation.
Other materials:
It Can Communication Circuit
Diagnosis Procedure
CHECK NETWORK DIAGNOSIS
Check the "Network diagnosis" results from CONSULT to see that the diagnostic CAN communication circuit have no malfunction.
Are the diagnostic CAN communication circuit normal?
YES>>
GO TO 2.
NO>>
Check and repair diagnostic CAN commu ...
Dtc/circuit Diagnosis. B0010-11 Assist A/b Module
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC Detection Condition
B0010-11
ASSIST A/B MODULE
(Passenger Frontal Stage 1 Deployment Control)
Diagnosis condition
When ignition switch is ON.
Signal (terminal)
Passenger air ba ...
Reporting safety defects
For USA
If you believe that your vehicle has a defect that could cause a crash or lead to injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying NISSAN. This applies whether you drive a Nissan Rogue or another NISSAN model.
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