Nissan Rogue (T33) 2021-Present Service Manual: U218b Can Comm Circuit

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / U218b Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U218B 83 CAN communication error Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
87 Threshold ECM is not transmitting or receiving CAN communication signal other than OBD (emission related diagnosis).
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

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

  • 12V sub battery (lithium ion battery)

FAIL-SAFE

Engine Control System

Not applicable

Stop/Start System

Not applicable

DTC Confirmation Procedure

CHECK DTC PRIORITY

If DTC U218B 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. Ignition switch OFF and wait at least 10 seconds.

  2. Ignition switch ON.

  3. 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. Ignition switch ON and wait at least 3 seconds.

  2. Check 1st trip DTC.

Is DTC U218B 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 U218B 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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