Nissan Rogue (T33) 2021-Present Service Manual: U2441-57 Mac Comm Error (tcm)

Nissan Rogue (T33) 2021-Present Service Manual / Cruise Control & Driver Assistance :: Driver Assistance System / Adas Control Unit :: Dtc/circuit Diagnosis / U2441-57 Mac Comm Error (tcm)

Without Propilot Assist 2.1

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U2441 57 CAN communication error (TCM) 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

  • TCM

FAIL-SAFE

The following systems are canceled.

  • Vehicle-to-vehicle distance control mode

  • Conventional (fixed speed) cruise control mode

  • Steering wheel assistance function

  • FEB

  • RAB

  • PFCW

  • LDP

  • Blind Spot Intervention

  • TSR

  • DAA

CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

If DTC “U2441-57” is displayed with DTC “U1327-52” or “U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or “U1327-54”.

Is DTC “U1327-52” or “U1327-54” detected?

YES>>

Perform diagnosis of applicable. Refer to the following.

  • U1327-52: DTC Description

  • U1327-54: DTC Description

NO>>

GO TO 2.

CHECK MAC DIAGNOSIS

With CONSULT

  1. Ignition switch ON.

  2. Perform “MAC Diagnosis” mode of “ICC/ADAS 2” using CONSULT.

Is DTC “U2441-57” 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

With Propilot Assist 2.1

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U2441 57 CAN communication error (TCM) 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

  • TCM

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

PERFORM DTC CONFIRMATION PROCEDURE

If DTC “U2441-57” is displayed with DTC “U1327-52” or “U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or “U1327-54”.

Is DTC “U1327-52” or “U1327-54” detected?

YES>>

Perform diagnosis of applicable. Refer to the following.

  • U1327-52: DTC Description

  • U1327-54: DTC Description

NO>>

GO TO 2.

CHECK MAC DIAGNOSIS

With CONSULT

  1. Ignition switch ON.

  2. Perform “MAC Diagnosis” mode of “ICC/ADAS 2” using CONSULT.

Is DTC “U2441-57” 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

CHECK DTC PRIORITY

If DTC “U2441-57” is displayed with DTC “U1327-52” or “U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or “U1327-54”.

Is DTC “U1327-52” or “U1327-54” detected?

YES>>

Perform diagnosis of applicable. Refer to the following.

  • U1327-52: DTC Description (Without ProPILOT Assist 2.1) or DTC Description (With ProPILOT Assist 2.1)

  • U1327-54: DTC Description (Without ProPILOT Assist 2.1) or DTC Description (With ProPILOT Assist 2.1)

NO>>

GO TO 2.

CHECK MAC DIAGNOSIS

With CONSULT

Perform “MAC Diagnosis” mode of “ICC/ADAS 2” using CONSULT.

Is DTC “U2441-57” detected with DTC “U2140-57”, “U2143-57”, “U214F-57”, “U2175-57”, “U2176-57”, "U2440-57", “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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