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

Nissan Sentra B18 (2020-2025) Service Manual: 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

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B24A4-15 INTAKE SENSOR (Intake sensor) Diagn...

 B24d4-08 A/c Control Comm

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B24D4-08 A/C CONTROL COMM (A/C control commu...

Other materials:

Preparation. Preparation
Preparation Engine Control System : Special Service Tool ENGINE CONTROL SYSTEM : Special Service Tool The actual shape of the tools may differ from those illustrated here. Tool number (TechMate No.) To ...

Rear window and outside mirror defroster switch
To defrost the rear window glass and the outside mirrors (if so equipped), start the engine and press the rear window defroster switch. The indicator light on the switch will illuminate while the system is active. Press the switch again to turn the defroster off. The rear window defroster ...

Rear Suspension. Symptom Diagnosis. Noise, Vibration and Harshness (nvh) Troubleshooting. Nvh Troubleshooting Chart
Noise, Vibration and Harshness (nvh) Troubleshooting. Nvh Troubleshooting Chart Nvh Troubleshooting Chart NVH Troubleshooting Chart Use chart below to find the cause of the symptom. If necessary, repair or replace these parts. ...