Nissan Murano: Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / B2632 Dr Air Mix Door Mot
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms
(Trouble diagnosis content) | DTC detection condition |
| B2632 |
DR AIR MIX DOOR MOT (SHORT)
(Driver side air mix door motor) |
Diagnosis condition |
When ignition switch is ON. |
| Signal (terminal) |
- |
| Threshold |
PBR position 95% or more |
| Diagnosis delay time |
- |
POSSIBLE CAUSE
FAIL-SAFE
—
DTC Confirmation Procedure
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.
DTC Diagnosis Procedure
CHECK AIR MIX DOOR MOTOR LH COMMUNICATION SIGNAL
-
Ignition switch ON.
-
Check output waveform between air mix door motor LH harness connector and ground with the oscilloscope.
| + | − | Output waveform |
| Air mix door motor LH |
| Connector | Terminal |
| M155 |
3 |
Ground |

|
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
GO TO 3.
CHECK INSTALLATION OF AIR MIX DOOR MOTOR LH
Check air mix door motor LH is properly installed. Refer to Exploded View.
Is the inspection result normal?
YES>>
Replace air mix door motor LH. Refer to Removal and Installation - (LH).
NO>>
Repair or replace malfunctioning part.
CHECK AIR MIX DOOR MOTOR LH COMMUNICATION SIGNAL CIRCUIT
-
Ignition switch OFF.
-
Disconnect air mix door motor LH connector and A/C auto amp. connector.
-
Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connector.
| Air mix door motor LH | A/C auto amp. | Continuity |
| Connector | Terminal | Connector | Terminal |
| M155 |
3 |
M50 |
16 |
Yes |
Is the inspection result normal?
YES>>
Replace A/C auto amp. Refer to Removal and Installation.
NO>>
Repair harness or connector.
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
B2630
SUNLOAD SENSOR (SHORT)
(Sunload sensor)
Diagnosis condition
When ignition switch is ON...
DTC Description
DTC DETECTION LOGICNOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to DTC Description (U1000) or DTC Description (U1010)...
Other information:
Diagnosis Procedure
CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT to see that the Nissan Murano vehicle CAN communication circuit and ITS CAN communication circuit have no malfunction.
Are the CAN communication circuits normal?
YES>>
GO TO 2...
System Description
SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description
ECM
CAN communication
Closed throttle position signal
Receives idle position state (ON/OFF)
Accelerator pedal position signal
Receives accelerator pedal position (angle)
Engine speed signal
Receives engine speed
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
Current gear position signal
Receives a current gear position
Shift position signal
Receives a selector lever position
Output shaft revolution signal
Receives the number of revolutions of output shaft
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 a 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
Yaw rate signal
Receives yaw rate acting on the Nissan Murano vehicle
Stop lamp switch signal
Receives an operational state of the brake pedal
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, turning direction of the steering wheel
Steering angle speed signal
Receives the turning angle speed of the steering wheel
Distance sensor
ITS communication
Distance sensor signal
Receives detection results, such as the presence or absence of a leading Nissan Murano vehicle and distance from the vehicle
Lane camera unit
Chassis CAN communication
Pedestrian ahead signal
Receives detection results of pedestrian ahead of Nissan Murano vehicle
Vehicle ahead signal
Receives detection results of Nissan Murano vehicle ahead
Output Signal Item Reception unit Signal name Description
ABS actuator and electric unit (control unit)
CAN communication
Brake fluid pressure control signal
Transmits a brake fluid pressure control signal to activates the brake
Combination meter
CAN communication
Meter display signal
Nissan Murano Vehicle ahead detection indicator signal
Transmits a signal to display a state of the system on the information display
AEB/I-FCW system display signal
AEB warning signal
Distance sensor
ITS communication
Nissan Murano Vehicle speed signal
Transmits a vehicle speed calculated by the ADAS control unit
Steering angle sensor signal
Transmits a steering angle sensor signal received from the steering angle sensor
Warning buzzer
Warning buzzer signal
Activates the warning buzzer
ICC brake hold relay
ICC brake hold relay drive signal
Activates the brake hold relay and turns ON the stop lamp
DESCRIPTION
Automatic Emergency Braking (AEB) system can assist the driver when there is a forward collision with the Nissan Murano vehicle ahead in the traveling lane...