Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Display Audio with Bose with 8" Color Display / Dtc/circuit Diagnosis / B1f05 Can Sig Error/diag

Nissan Sentra B18 (2020-2025) Service Manual: B1f05 Can Sig Error/diag

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
B1F05–29	CAN SIG ERROR/DIAG (CAN signal error/diagnosis)	—	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	CAN communication signal
			Threshold	Data error
			Diagnosis delay time	30 seconds or more

POSSIBLE CAUSE

BCM
Combination meter
ABS actuator and electric unit (control unit)

FAIL-SAFE

—

Confirmation Procedure

Confirmation Procedure

CHECK DTC PRIORITY
1. If DTC B1F05–29 is displayed with DTC U1000–01 or U1010–49, first perform the confirmation procedure for DTC U1000–01 or U1010–49.
Is DTC U1000–01 or U1010–49 detected?
YES >>
- U1000–01. Proceed to DTC Description.
- U1010–49. Proceed to DTC Description.
NO >>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. CONSULT
  1. Ignition switch ON.
  2. Ignition switch OFF and wait at least 30 seconds.
  3. Ignition switch ON and wait at least 30 seconds or more.
  4. Select “Self Diagnostic Result” mode of “AUDIO AMP.”.
  5. Check DTC.
Is DTC B1F05–29 detected?
YES>>
Refer to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

PERFORM ALL DTC READING
1. CONSULT
  1. Select “All DTC Reading”.
  2. Check diagnosis results.
Are any DTCs detected?
YES>>
Perform diagnosis procedure corresponding to DTC indicated.
NO>>
Inspection End

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