Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U2148-83 Can Comm Err (brake Control Unit)

Nissan Rogue (T33) 2021-Present Service Manual / Restraints :: Srs Air Bag Control System / Dtc/circuit Diagnosis :: U2148-83 Can Comm Err (brake Control Unit)

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
U2148-83

CAN comm err (brake control unit)

[Controller area network communication error (brake control unit)] 		Diagnosis condition When ignition switch is ON.
Signal (terminal) CAN communication signal
Threshold Error signal that is received from ABS actuator and electric unit (control unit)
Diagnosis delay time 2 seconds or more.

POSSIBLE CAUSE

  • ABS actuator and electric unit (control unit)

  • Air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK DTC PRIORITY

If DTC U2148-83 is displayed with Network-DTC, first perform the trouble diagnosis for Network-DTC.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. Refer to DTC Index.

NO>>

GO TO 2.

CHECK SELF DIAGNOSIS RESULT

CONSULT

  1. Ignition switch ON.

  2. Perform “Self diagnosis result” mode of “AIR BAG” using CONSULT.

Is malfunctioning part 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

WARNING:

  • Before servicing, ignition switch OFF, disconnect battery negative terminal, and wait at least 3 minutes or more. (To discharge backup capacitor.)

  • Never use unspecified tester or other measuring device.

CHECK DTC PRIORITY

If DTC U2148-83 is displayed with Network-DTC, first perform the trouble diagnosis for Network-DTC.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. Refer to DTC Index.

NO>>

GO TO 2.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self diagnosis result” of “ABS”.

Is any DTC detected?

YES>>

Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index.

NO>>

Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

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