Nissan Sentra B18 (2020-2025) Service Manual: B24b4-02 A/c Control

Nissan Sentra B18 (2020-2025) Service Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System :: Manual Air Conditioner / Dtc/circuit Diagnosis / B24b4-02 A/c Control

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
B24B4-02	A/C CONTROL (Air conditioning control)	[GENERAL SIGNAL FAILURE]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	–
			Threshold	–
			Diagnosis delay time	30 seconds or more

POSSIBLE CAUSE

A/C amp. (Internal circuit malfunction)

FAIL-SAFE

—

Confirmation Procedure

Confirmation Procedure

PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Ignition switch ON.
  2. Select “Self Diagnostic Result” mode of “HVAC”.
Is DTC 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 SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Ignition switch ON.
  2. Select “Self Diagnostic Result” mode of “HVAC”.
  3. Select “ERASE”.
  4. Ignition switch OFF.
  5. Ignition switch ON.
  6. Perform “DTC CONFIRMATION PROCEDURE”. Refer to Confirmation Procedure.
Is DTC detected again?
YES >>
Replace A/C amp. Refer to Removal and Installation.
NO >>
Inspection End.

B24a4-15 Intake Sensor

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