Nissan GT-R (R35) · Service Manual VENTILATION, HEATER & AIR CONDITIONER

B2632, B2633 AIR MIX DOOR MOTOR PBR (DRIVER SIDE)

AUTOMATIC AIR CONDITIONER

B2632 B2633

Description

 
 AIR MIX DOOR MOTOR (DRIVER SIDE)

  • The air mix door motor (driver side) (1) is installed to the heater & cooling unit assembly.
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  • The LCU (Local Control Unit) is installed to each door motor so as to perform the multiplex communication control (LAN) between each door motor of the mode door motor, air mix door motor and intake door motor in one communication line.
  • When each LCU receives the control signal (combination of the pulse wave with two types of amplitude) from the A/C auto amp., it moves each door to the appropriate position based on the door position detection signal of each PBR (Potentio Balance Resistor). When the movement was completed, each LCU transmits the signal that reports the movement completion to the A/C auto amp.

DTC Logic

 
 DTC DETECTION LOGIC

DTC
 		Items
(CONSULT-III screen terms)
 		Diagnostic item is detected when...
 		Possible causes
B2632
 		DR AIR MIX ACTR (SHORT)
 		Air mix door PBR (driver side) position 5% or less
  • Air mix door motor (driver side)
  • A/C auto amp.
  • Harness and connector
    (Open circuit or short circuit in CAN communication line)
    (Short in the air mix door motor circuit)
B2633
 		DR AIR MIX ACTR (OPEN)
 		Air mix door PBR (driver side) position 95% or more
  • Air mix door motor (driver side)
  • A/C auto amp.
  • Harness and connector
    (Open circuit or short circuit in CAN communication line)
    (Open in the air mix door motor circuit)

 
 DTC CONFIRMATION PROCEDURE

 
 1.PERFORM SELF-DIAGNOSIS
 
 2.FUNCTION INSPECTION

Diagnosis Procedure


 
 1.CHECK BATTERY VOLTAGE OF AIR MIX DOOR MOTOR (DRIVER SIDE)
 
 2.CHECK SIGNAL OF AIR MIX DOOR MOTOR (DRIVER SIDE)
 
 3.CHECK GROUND CIRCUIT OF AIR MIX DOOR MOTOR (DRIVER SIDE)