Nissan Rogue (T33) 2021-Present Service Manual: U2140-57 Ecm
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | ||
|---|---|---|---|---|
| U2140 | 57 | CAN communication error (ECM) | Diagnosis condition | — |
| Signal (terminal) | — | |||
| Threshold | MAC communication error | |||
| Diagnosis delay time | — | |||
POSSIBLE CAUSE
-
MAC communication error
-
ADAS control unit 2 used in other vehicles is installed in the Nissan Ariya vehicle
-
ADAS control unit 2
-
ECM
FAIL-SAFE
The following systems are canceled.
-
Vehicle speed & vehicle-to-vehicle control function
-
Lane keep function*1
-
Lane keep function*2
-
Lane change support function
-
Overtaking support function
-
Route driving support function
-
FEB
-
RAB
-
PFCW
-
LDP
-
Blind Spot Intervention
-
TSR
-
DAA
*1: ProPILOT Assist 2.1 display is green
*2: ProPILOT Assist 2.1 display is blue
CONFIRMATION PROCEDURE
CHECK DTC PRIORITY
If DTC “U2140–57” is displayed with DTC “U1327-52” or DTC“U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or “U1327-54”.
Is “U1327-52” or DTC“U1327-54” detected?
YES>>Perform diagnosis of applicable. Refer to the following.
-
U1327-52: Refer to DTC Description.
-
U1327-54: Refer to DTC Description.
GO TO 2.
PERFORM MAC DIAGNOSIS
With CONSULT
-
Ignition switch ON.
-
Perform “MAC Diagnosis” mode of “ICC/ADAS 2” using CONSULT.
Is “U2140-57” detected as the current malfunction?
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 DTC PRIORITY
If DTC “U2140–57” is displayed with DTC “U1327-52” or DTC“U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or DTC“U1327-54”.
Is “U1327-52” or DTC“U1327-54” detected?
YES>>Perform diagnosis of applicable. Refer to the following.
-
U1327-52: Refer to DTC Description.
-
U1327-54: Refer to DTC Description.
GO TO 2.
PERFORM MAC DIAGNOSIS
With CONSULT
Perform “MAC Diagnosis” mode of “ICC/ADAS 2” using CONSULT.
Is DTC “U2140-57” detected with DTC “U2143-57”, “U214F-57”, “U2175-57”, “U2176-57”, “U2440-57”, "U2441-57", “U2443-57”, “U244F-57", “U2465-57”, and "U2476-57" at the same time?
YES (all DTC codes are detected at the same time)>>Replace the ADAS control unit 2. Refer to Removal and Installation.
NO (all DTC codes are not detected at the same time)>>GO TO 3.
CHECK CAN DIAGNOSIS
With CONSULT
Perform "CAN Diag".
Is the inspection result normal?
YES>>Contact Techline and report the Nissan Ariya vehicle condition.
NO>>Repair or replace root cause.
Other materials:
Variable Compression Ratio Motor Rotation Angle Sensor
Component Inspection
CHECK VCR MOTOR ROTATION ANGLE SENSOR
Turn ignition switch OFF.
Disconnect VCR motor rotation angle sensor harness connector.
Check the continuity between VCR motor rotation angle sensor harness connectors.
VCR motor rotation angle sensor Continuity
Termina ...
For system temporarily unavailable
Warning message/Warning light:
"Limited driver's aidVDC setting OFF" and
Illuminating
Possible cause: VDC switched off
System to check: AEB with Pedestrian Detection
Remedy: Turn VDC back on.
Warning message/Warning light:
"Driving Aids temporarily limited" and
...
U2140-87 Can Comm Err (ecm)
DTC Description
DESCRIPTIONCAN (Controller Area Network) is a serial
communication line for real time applications. It is an on-Nissan Ariya
vehicle multiplex communication line with high data communication speed
and excellent error detection ability. Modern Nissan Ariya vehicle is
equipped ...