DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK FOR DTC
CHECK HARNESS AND CONNECTOR (POWER SOURCE)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER
CHECK VEHICLE TYPE
SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT A])
CHECK COOL AIR BYPASS DAMPER SERVO MOTOR
CHECK REC/FRS DAMPER SERVO MOTOR
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE MODE)
CHECK AIR MIX SERVO MOTOR
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FRONT PASSENGER SIDE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FRONT PASSENGER SIDE REAR AIR FLOW)
SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT B])
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE)
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR REAR SEAT MODE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE REAR AIR FLOW)
SYSTEM CHECK
CHECK COOL AIR BYPASS DAMPER SERVO MOTOR
CHECK REC/FRS DAMPER SERVO MOTOR
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE)
CHECK AIR MIX DAMPER SERVO MOTOR
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE)
CHECK VEHICLE TYPE
SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT A])
CHECK REC/FRS DAMPER SERVO MOTOR
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE REAR AIR FLOW)
CHECK AIR OUTLET DAMPER SERVO MOTOR
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE MODE)
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR REAR SEAT MODE)
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DEF MODE)
SYSTEM CHECK (SEGMENT B)
CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE)
CHECK COOL AIR BYPASS DAMPER SERVO MOTOR
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE)
CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE REAR AIR FLOW)
CHECK AIR CONDITIONING HARNESS ASSEMBLY
SYSTEM CHECK (REAR AIR CONDITIONING HARNESS)
CHECK REAR AIR MIX DAMPER SERVO MOTOR LH
CHECK REAR AIR MIX DAMPER SERVO MOTOR RH
CHECK REAR AIR OUTLET DAMPER SERVO MOTOR
CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER)
CHECK NO. 2 AIR CONDITIONING HARNESS ASSEMBLY
DTC B1497/97 BUS IC Communication Malfunction
DESCRIPTION
The air conditioning harness assembly connects the air conditioning amplifier assembly and each servo motor. The air conditioning amplifier assembly supplies power and sends operation instructions to each servo motor through the air conditioning harness assembly. Each servo motor sends the damper position information to the air conditioning amplifier assembly.
| DTC Code | DTC Detection Condition | Trouble Area |
| B1497/97 |
An open or error in the communication line. |
Cool air bypass damper servo motor
REC/FRS damper servo motor
Air outlet damper servo motor (for front passenger side mode) (for 4-Zone Type)
Front air mix damper servo motor (for front passenger side)
Front air mix damper servo motor (for front passenger side rear air flow) (for 4-Zone Type)
Air outlet damper servo motor (for driver side mode)
Air outlet damper servo motor (for rear seat mode)
Front air mix damper servo motor (for driver side)
Front air mix damper servo motor (for driver side rear air flow)
Air outlet damper servo motor (for DEF mode) (for RHD)
Air conditioning harness assembly
Rear air outlet damper servo motor (w/ Rear Heater)
Rear air mix damper servo motor LH (w/ Rear Heater)
Rear air mix damper servo motor RH (w/ Rear Heater)
No. 2 air conditioning harness assembly (w/ Rear Heater)
Harness or connector (w/ Rear Heater)
Air conditioning amplifier assembly
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| USE SIMULATION METHOD TO CHECK ()
|
|
| 2.CHECK HARNESS AND CONNECTOR (POWER SOURCE) |
w/ Rear Heater
Disconnect the E36 amplifier connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| E36-6 (+B1) - Body ground | Always | 11 to 14 V |
| E36-7 (+B2) - Body ground |
w/o Rear Heater
Disconnect the E81 amplifier connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| E81-21 (+B1) - Body ground | Always | 11 to 14 V |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.PERFORM ACTIVE TEST USING INTELLIGENT TESTER |
Select the Active Test, using the intelligent tester to generate a control command, and then check that the servo motor operates.
| Tester Display | Test Part | Control Range | Diagnostic Note |
| Air Mix Servo Targ Pulse(D) | Air mix servo motor pulse (Front A/C D side) | Min.: 8, Max.: 90 | - |
| Air Mix Servo Targ Pulse(P) | Air mix servo motor pulse (Front A/C P side) | Min.: 8, Max.: 90 | - |
| Air Inlet Damper Targ Pulse | Air inlet damper target pulse | Min.: 9, Max.: 37 | - |
| Cool Air Bypass Pulse | Driver side cool air bypass pulse | Min.: 6, Max.: 57 | - |
| Rear Air Mix Servo Targ Pulse | Rear air mix damper servo motor pulse | for LHD
Min.: 9, Max.: 54
for RHD
Min.: 8, Max.: 53 | - |
| DEF A/O Servo Pulse(D) | Rear air outlet damper servo motor pulse | Min.: 7, Max.: 83 | - |
| Rear A/M Servo Pulse(P) | Rear air mix damper servo motor (for front passenger side) pulse | for LHD
Min.: 8, Max.: 53
for RHD
Min.: 9, Max.: 54 | - |
| Face A/O Servo Pulse(D) | Air outlet servo motor pulse (D side) | Min.: 6, Max.: 117 | - |
| Face A/O Servo Pulse(P) | Air outlet servo motor pulse (P side) | for LHD
Min.: 6, Max.: 117
for RHD
Min.: 9, Max.: 120 | - |
| A/M Servo Puls(F&R D) | Air mix servo motor pulse (Front A/C rear air flow D side) | for LHD
Min.: 9, Max.: 54
for RHD
Min.: 8, Max.: 53 | - |
| A/M Servo Puls(F&R P) | Air mix servo motor pulse (Front A/C rear air flow P side) | for LHD
Min.: 8, Max.: 53
for RHD
Min.: 9, Max.: 54 | - |
| A/O Servo Pulse(F&R D) | Air outlet servo motor pulse (Front A/C rear air flow D side) | Min.: 9, Max.: 79 | - |
| A/O Servo Pulse(Rr D) | Air outlet servo motor pulse (Rr D side) | Min.: 7, Max.: 83 | - |
- OK:
- Arm of the servo motor selected in the Active Test moves smoothly
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in servo motor connected to air conditioning harness (for LHD) | A |
| Malfunction in servo motor connected to air conditioning harness (for RHD) | B |
| Malfunction in servo motor connected to air conditioning harness (for Rear) (w/ Rear Heater) | C |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in servo motor connected to air conditioning harness (Segment A) (w/ Rear Heater) | A |
| Malfunction in servo motor connected to air conditioning harness (Segment B) (w/ Rear Heater) | B |
| Malfunction in servo motor connected to air conditioning harness (w/o Rear Heater) | C |
| 5.SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT A]) |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in cool air bypass damper servo motor | A |
| Malfunction in REC/FRS damper servo motor | B |
| Malfunction in air outlet damper servo motor (for front passenger side mode) | C |
| Malfunction in air mix damper servo motor | D |
| Malfunction in all of the servo motors connected to the air conditioning harness (segment A) | E |
| 6.CHECK COOL AIR BYPASS DAMPER SERVO MOTOR |
Replace the cool air bypass damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (COOL AIR BYPASS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 7.CHECK REC/FRS DAMPER SERVO MOTOR |
Replace the REC/FRS damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REC/FRS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 8.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE MODE) |
Replace the air outlet damper servo motor (for front passenger side mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE MODE] IS DEFECTIVE) |
|
| 9.CHECK AIR MIX SERVO MOTOR |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in air mix damper servo motor (front passenger side) | A |
| Malfunction in front air mix damper servo motor (front passenger side rear air flow) | B |
| 10.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FRONT PASSENGER SIDE) |
Replace the air mix damper servo motor (front passenger side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE] IS DEFECTIVE |
|
| 11.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FRONT PASSENGER SIDE REAR AIR FLOW) |
Replace the front air mix damper servo motor (front passenger side rear air flow).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE REAR AIR FLOW] IS DEFECTIVE) |
|
| 12.SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT B]) |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in air mix damper servo motor (for driver side mode) | A |
| Malfunction in air outlet damper servo motor (for rear seat mode) | B |
| Malfunction in front air mix damper servo motor (for driver side mode) | C |
| Malfunction in front air mix damper servo motor (for driver side rear air flow) | D |
| Malfunction in all of the servo motors connected to the air conditioning harness (segment A) | E |
| 13.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE) |
Replace the air mix damper servo motor (for driver side mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR DRIVER SIDE MODE] IS DEFECTIVE) |
|
| 14.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR REAR SEAT MODE) |
Replace the air outlet damper servo motor (for rear seat mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR REAR SEAT MODE] IS DEFECTIVE) |
|
| 15.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE) |
Replace the front air mix damper servo motor (for driver side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR DRIVER SIDE] IS DEFECTIVE) |
|
| 16.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE REAR AIR FLOW) |
Replace the front air mix damper servo motor (for driver side rear air flow).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR DRIVER SIDE REAR AIR FLOW] IS DEFECTIVE) |
|
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in cool air bypass damper servo motor | A |
| Malfunction in REC/FRS damper servo motor | B |
| Malfunction in front air outlet damper servo motor (for driver side mode) | C |
| Malfunction in air mix damper servo motor | D |
| Malfunction in all of the servo motors connected to the air conditioning harness (segment A) | E |
| 18.CHECK COOL AIR BYPASS DAMPER SERVO MOTOR |
Replace the cool air bypass damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (COOL AIR BYPASS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 19.CHECK REC/FRS DAMPER SERVO MOTOR |
Replace the REC/FRS damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REC/FRS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 20.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE) |
Replace the front air outlet damper servo motor (for driver side mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR DRIVER SIDE MODE] IS DEFECTIVE) |
|
| 21.CHECK AIR MIX DAMPER SERVO MOTOR |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in front air mix damper servo motor (front passenger side) | A |
| Malfunction in front air mix damper servo motor (for driver side) | B |
| 22.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE) |
Replace the front air mix damper servo motor (for front passenger side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1441/41 is not output | A |
| DTC B1441/41 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE] IS DEFECTIVE |
|
| 23.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE) |
Replace the front air mix damper servo motor (for driver side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR DRIVER SIDE] IS DEFECTIVE) |
|
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in servo motor connected to air conditioning harness (Segment A) | A |
| Malfunction in servo motor connected to air conditioning harness (Segment B) | B |
| 25.SYSTEM CHECK (AIR CONDITIONING HARNESS [SEGMENT A]) |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in REC/FRS damper servo motor | A |
| Malfunction in front air mix damper servo motor (for front passenger side) | B |
| Malfunction in front air mix damper servo motor (for front passenger side rear air flow) | C |
| Malfunction in air outlet damper servo motor | D |
| Malfunction in all of the servo motors connected to the air conditioning harness (segment A) | E |
| 26.CHECK REC/FRS DAMPER SERVO MOTOR |
Replace the REC/FRS damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REC/FRS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 27.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE) |
Replace the front air mix damper servo motor (for front passenger side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1441/41 is not output | A |
| DTC B1441/41 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE] IS DEFECTIVE |
|
| 28.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE REAR AIR FLOW) |
Replace the front air mix damper servo motor (for front passenger side rear air flow).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE REAR AIR FLOW] IS DEFECTIVE) |
|
| 29.CHECK AIR OUTLET DAMPER SERVO MOTOR |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in air outlet damper servo motor (for front passenger side mode) | A |
| Malfunction in air outlet damper servo motor (for rear seat mode) | B |
| Malfunction in air outlet damper servo motor (for DEF mode) | C |
| 30.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR FRONT PASSENGER SIDE MODE) |
Replace the air outlet damper servo motor (for front passenger side mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR FRONT PASSENGER SIDE MODE] IS DEFECTIVE) |
|
| 31.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR REAR SEAT MODE) |
Replace the air outlet damper servo motor (for rear seat mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR REAR SEAT MODE] IS DEFECTIVE) |
|
| 32.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DEF MODE) |
Replace the air outlet damper servo motor (for DEF mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR DEF MODE] IS DEFECTIVE) |
|
| 33.SYSTEM CHECK (SEGMENT B) |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in air outlet damper servo motor (for driver side mode) | A |
| Malfunction in cool air bypass damper servo motor | B |
| Malfunction in front air mix damper servo motor (for driver side) | C |
| Malfunction in air mix damper servo motor (for driver side rear air flow) | D |
| Malfunction in all of the servo motors connected to the air conditioning harness (segment B) | E |
| 34.CHECK AIR OUTLET DAMPER SERVO MOTOR (FOR DRIVER SIDE MODE) |
Replace the air outlet damper servo motor (for driver side mode).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (AIR OUTLET DAMPER SERVO MOTOR [FOR DRIVER SIDE MODE] IS DEFECTIVE) |
|
| 35.CHECK COOL AIR BYPASS DAMPER SERVO MOTOR |
Replace the cool air bypass damper servo motor.
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (COOL AIR BYPASS DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 36.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE) |
Replace the front air mix damper servo motor (for driver side).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR DRIVER SIDE] IS DEFECTIVE) |
|
| 37.CHECK FRONT AIR MIX DAMPER SERVO MOTOR (FOR DRIVER SIDE REAR AIR FLOW) |
Replace the air mix damper servo motor (for driver side rear air flow).
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (FRONT AIR MIX DAMPER SERVO MOTOR [FOR DRIVER SIDE REAR AIR FLOW] IS DEFECTIVE) |
|
| 38.CHECK AIR CONDITIONING HARNESS ASSEMBLY |
Replace the air conditioning harness assembly.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY ()
|
|
|
| A | |
| |
| END (AIR CONDITIONING HARNESS ASSEMBLY IS DEFECTIVE) |
|
| 39.SYSTEM CHECK (REAR AIR CONDITIONING HARNESS) |
According to the test, proceed to the next step.
Result| Result | Proceed to |
| Malfunction in rear air mix damper servo motor LH | A |
| Malfunction in rear air mix damper servo motor RH | B |
| Malfunction in rear air outlet damper servo motor | C |
| Malfunction in all of the servo motors connected to the rear air conditioning harness | D |
| 40.CHECK REAR AIR MIX DAMPER SERVO MOTOR LH |
Replace the rear air mix damper servo motor LH ().
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REAR AIR MIX DAMPER SERVO MOTOR LH IS DEFECTIVE) |
|
| 41.CHECK REAR AIR MIX DAMPER SERVO MOTOR RH |
Replace the rear air mix damper servo motor RH ().
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REAR AIR MIX DAMPER SERVO MOTOR RH IS DEFECTIVE) |
|
| 42.CHECK REAR AIR OUTLET DAMPER SERVO MOTOR |
Replace the rear air outlet damper servo motor ().
- Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one.
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/8897 is not output | A |
| DTC B1497/97 is output | B |
| A | |
| |
| END (REAR AIR OUTLET DAMPER SERVO MOTOR IS DEFECTIVE) |
|
| 43.CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) |
Disconnect the K19 No. 2 air conditioning harness connector.
Disconnect the E36 amplifier connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| K19-2 (RBUG) - E36-12 (RBUG) | Always | Below 1 Ω |
| K19-3 (RBUS) - E36-13 (RBUS) |
| K19-4 (RBBU) - E36-14 (RBBU) |
| E36-12 (RBUG) - Body ground | Always | 10 kΩ or higher |
| E36-13 (RBUS) - Body ground |
| E36-14 (RBBU) - Body ground |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 44.CHECK NO. 2 AIR CONDITIONING HARNESS ASSEMBLY |
Replace the No. 2 air conditioning harness assembly ().
Check for DTCs ().
Result| Result | Proceed to |
| DTC B1497/97 is not output | A |
| DTC B1497/97 is output | B |
| | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY ()
|
|
|
| A | |
| |
| END (NO. 2 AIR CONDITIONING HARNESS ASSEMBLY IS DEFECTIVE) |
|
