Nissan Murano: Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / B27b0 A/c Auto Amp.
DTC DETECTION LOGIC
NOTE:
-
If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Description.
-
If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Description.
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| B27B0 |
A/C AUTO AMP. (A/C auto amp.) |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | - | ||
| Threshold | - | ||
| Diagnosis delay time | - | ||
POSSIBLE CAUSE
A/C auto amp.
FAIL-SAFE
—
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “HVAC”.
-
Check DTC.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>Inspection End.
PERFORM SELF DIAGNOSTIC RESULT
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “HVAC”.
-
Select “ERASE”.
-
Ignition switch OFF.
-
Ignition switch ON.
-
Perform “DTC CONFIRMATION PROCEDURE”. Refer to DTC Description.
Is DTC detected again?
YES>>Replace A/C auto amp. Refer to Removal and Installation.
NO>>Inspection End.
B2796 Fr Sw Comm Error
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
B2796
FR SW COMM ERROR
(Front switch communication error)
Diagnosis condition
When ignition switch is ON...
Other information:
Nissan Murano (Z52) 2015-2024 Service Manual: System
System Description SYSTEM DIAGRAMDISTANCE SENSOR (ICC SENSOR) INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description ADAS control unit ITS communication ADAS sensor signal State of ADAS Output Signal Item Reception unit Signal name Description ADAS control unit ITS communication Distance sensor (ICC sensor) signal Transmits information for ICC ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Reception unit Signal name Description ECM CAN communication Engine speed signal Receives engine speed Accelerator pedal position signal Receives accelerator pedal position (angle) Closed throttle position signal Receives idle position state (ON/OFF) ICC prohibition signal Receives operable/inoperable state of the ICC system ICC steering switch signal Main switch signal Receives the operational state of the ICC steering switch SET/COAST switch signal CANCEL switch signal RESUME/ACCELERATE switch signal DISTANCE switch signal Stop lamp switch signal Receives an operational state of the brake pedal Brake pedal position switch signal Receives an operational state of the brake pedal TCM CAN communication Input speed signal Receives the number of revolutions of input shaft Output shaft revolution signal Receives the number of revolutions of output shaft Current gear position signal Receives a current gear position Shift position signal Receives a selector lever position ABS actuator and electric unit (control unit) CAN communication ABS malfunction signal Receives a malfunction state of ABS ABS operation signal Receives an operational state of ABS ABS warning lamp signal Receives an ON/OFF state of ABS warning lamp TCS malfunction signal Receives a malfunction state of TCS TCS operation signal Receives an operational state of TCS VDC OFF switch signal Receives an ON/OFF state of VDC VDC malfunction signal Receives an malfunction state of VDC VDC operation signal Receives an operational state of VDC Nissan Murano Vehicle speed signal (ABS) Receives wheel speeds of four wheels Stop lamp switch signal Receives an operational state of the brake pedal Yaw rate signal Receives yaw rate acting on Nissan Murano vehicle Combination meter CAN communication Parking brake switch signal Receives an operational state of the parking brake System selection signal Receives a selection state of AEB system Steering angle sensor CAN communication Steering angle sensor malfunction signal Receives a malfunction state of steering angle sensor Steering angle sensor signal Receives the number of revolutions and turning direction of the steering wheel Steering angle speed signal Receives the turning angle speed of the steering wheel Distance sensor (ICC sensor) ITS communication Distance sensor (ICC sensor) signal Receives detection information, such as the presence or absence of a leading Nissan Murano vehicle, and distance from the vehicle...
Nissan Murano (Z52) 2015-2024 Service Manual: U1010-49 Control Unit (can)
DTC Description DESCRIPTIONCAN controller controls the communication of ITS communication signal and the error detection.DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1010-49 CONTROL UNIT (CAN) [Control unit (CAN)] Diagnosis condition When ignition switch is ON...
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Vehicle security system
Your vehicle has two types of security systems:
Vehicle security system NISSAN Vehicle Immobilizer SystemThe vehicle security system provides visual and audible alarm signals if someone opens the doors, liftgate or the hood when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs.
