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
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Lane change support function
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Overtaking support function
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Route driving support function
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FEB
-
RAB
-
PFCW
-
LDP
-
Blind Spot Intervention
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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
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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:
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Informations de base
AVERTISSEMENT
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Propilot Assist 2.1. Ecu Diagnosis Information
Adas Control Unit 2
List of ECU Reference
ECU Reference
ADAS control unit 2
Reference Value
Fail-safe (ADAS Control Unit)
DTC Inspection Priority Chart
DTC Index
Distance Sensor
List of ECU Reference
ECU Reference
Distance sensor
Reference Value
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Diagnosis System (ecm)
Diagnosis Description
Driving Pattern
CAUTION:
Always drive at a safe speed.
DRIVING PATTERN ADriving pattern A means a trip satisfying the following conditions.
Engine speed reaches 400 rpm or more.
Engine coolant temperature rises by 20°C (36°F) or more after starting the engine.
...