B2634

B2634, B2635 AIR MIX DOOR MOTOR PBR (PASSENGER SIDE)





Description

COMPONENT DESCRIPTION




The air mix door motor (passenger side) (1) is attached to the heater cooling unit assembly. It rotates so that the air mix door is opened or closed to a position set by the auto amp. Motor rotation is then conveyed through a shaft and the air mix door position feedback is then sent to the auto amp. by PBR built-in air mix door motor.

Arrow indicates vehicle front





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 50 seconds.
2. Check DTC.
Is DTC detected?
YES - Go to Diagnosis Procedure. "Diagnosis Procedure".
NO - END.




Diagnosis Procedure
1.CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE)
Check air mix door motor (passenger side). Refer to Service and Repair.
Is it installed normally?
YES - GO TO 2.
NO - Replace air mix door motor (passenger side). Refer to Service and Repair.
2.CHECK POWER SUPPLY FOR AUTO AMP.
1. Turn ignition switch ON.
2. Check voltage between auto amp. harness connector M37 terminal 20 and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Replace auto amp. Refer to Service and Repair.
3.CHECK SIGNAL FOR AUTO AMP.
Confirm A/C LAN signal between auto amp. harness connector M37 terminal 3 and ground using an oscilloscope.





Is the inspection result normal?
YES - GO TO 4.
NO - Replace auto amp. Refer to Service and Repair.
4.CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)
Check voltage between air mix door motor (passenger side) harness connector M129 terminal 3 and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair harness or connector.
5.CHECK SIGNAL FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)
Confirm A/C LAN signal between air mix door motor (passenger side) harness connector M129 terminal 1 and ground using an oscilloscope.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair harness or connector.
6.CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor (passenger side) connector.
3. Check continuity between air mix door motor (passenger side) harness connector M129 terminal 2 and ground.





Is the inspection result normal?
YES - Replace air mix door motor (passenger side). Refer to Service and Repair.
NO - Repair harness or connector.