Nissan Rogue (T33) 2021-Present Service Manual: U2140-57 Ecm

Nissan Rogue (T33) 2021-Present Service Manual / Cruise Control & Driver Assistance :: Driver Assistance System / Adas Control Unit :: Dtc/circuit Diagnosis / 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.

NO>>

GO TO 2.

PERFORM MAC DIAGNOSIS

With CONSULT

  1. Ignition switch ON.

  2. 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.

NO>>

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.

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