Nissan Rogue (T33) 2021-Present Service Manual: U214f Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
U214F 57

CAN comm err (BCM)

[CAN comm err (BCM)]
Diagnosis condition
Signal (terminal)
Threshold MAC communication error
Diagnosis delay time
83 Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold ECM is not receiving CAN communication signal other than OBD (emission related diagnosis).
Diagnosis delay time 2 seconds or more
87 Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold ECM is not receiving CAN communication signal other than OBD (emission related diagnosis).
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

U214F-57

  • MAC communication error

  • ECM used in other vehicles is installed in the Nissan Ariya vehicle

  • ECM

U214F-83,87

  • Harness or connectors (CAN communication line is open or shorted)

  • BCM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

U214F-57

CHECK DTC PRIORITY

If DTC U214F is displayed with DTC U1327, first perform the trouble diagnosis for DTC U1327.

Is DTC U1327 detected?

YES>>

Proceed to DTC Description.

NO>>

GO TO 2.

CHECK MAC DIAGNOSIS

With CONSULT

  1. Ignition switch ON.

  2. Perform “MAC Diagnosis” mode of “ENGINE” using CONSULT.

Is DTC U214F 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

U214F-83,87

CHECK DTC PRIORITY

If DTC U214F is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.

Is DTC P0607 detected?

YES>>

Proceed to DTC Description.

NO>>

GO TO 2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.

  2. Turn ignition switch ON.

  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON and wait at least 3 seconds.

  2. Check 1st trip DTC.

Is DTC U214F 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

U214F-57

CHECK DTC PRIORITY

If DTC U214F is displayed with DTC U1327, first perform the trouble diagnosis for DTC U1327.

Is DTC U1327 detected?

YES>>

Proceed to DTC Description

NO>>

GO TO 2.

CHECK MAC DIAGNOSIS

With CONSULT

Perform “MAC Diagnosis” mode of “ENGINE” using CONSULT.

Is DTC U214F detected with DTC U2152(with ProPILOT) and U2176 at the same time?

YES>>

all DTC codes are detected at the same time: Replace ECM. Refer to ECM : Removal & Installation.

NO>>

all DTC codes are not detected at the same time: GO TO 3.

CHECK CAN COMMUNICATION SYSTEM

Perform trouble diagnosis of CAN communication system. Refer to Trouble Diagnosis Flow Chart.

>>

INSPECTION END

U214F-83,87

CHECK DTC PRIORITY

If DTC U214F is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.

Is DTC P0607 detected?

YES>>

Proceed to DTC Description.

NO>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

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