Qashqai J11. Heater & Air conditioning Control System — part 7
B24B9 MODE DOOR MOTOR
HAC-97
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B24B9 MODE DOOR MOTOR
DTC Logic
INFOID:0000000010432222
DTC DETECTION LOGIC
POSSIBLE CAUSE
[CIRCUIT SHORT TO BATTERY]
• Harness and connector (Mode door motor circuit is shorted to battery)
• Mode door motor
• A/C auto amp.
[CIRC SHORT TO GRND OR OPEN]
• Harness and connector (Mode door motor circuit is open or shorted to ground)
• Mode door motor
• A/C auto amp.
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010432223
1.
CHECK MODE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect mode door motor connector.
3.
Turn ignition switch ON.
4.
Check voltage between mode door motor harness connector and ground for several seconds after press-
ing the MODE VENT/FOOT/DEF switch.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
B24B9
MODE DOOR MOTOR
(Mode door motor)
[CIRCUIT SHORT TO BATTERY]
Detect short to battery circuit of mode door motor cir-
cuits.
[CIRC SHORT TO GRND OR
OPEN]
Detect open or short to ground circuit of mode door
motor circuits.
+
−
Voltage
Mode door motor
Connector
Terminal
M342
2
Ground
11 - 14 V
HAC-98
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24B9 MODE DOOR MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
4.
CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT
1.
Check continuity between mode door motor harness connector and ground.
2.
Check voltage between mode door motor harness connector and ground.
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M342
2
M140
20
Existed
Mode door motor
—
Continuity
Connector
Terminal
M342
2
Ground
Not existed
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M342
1
M140
11
Existed
3
12
4
32
6
33
Mode door motor
—
Continuity
Connector
Terminal
M342
1
Ground
Not existed
3
4
6
B24B9 MODE DOOR MOTOR
HAC-99
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK MODE DOOR MOTOR
Check mode door motor. Refer to
HAC-99, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Replace mode door motor. Refer to
HAC-140, "MODE DOOR MOTOR : Removal and Installa-
.
Component Inspection
INFOID:0000000010432224
1.
CHECK MODE DOOR MOTOR
1.
Remove mode door motor. Refer to
HAC-140, "MODE DOOR MOTOR : Removal and Installation"
2.
Check resistance between mode door motor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace mode door motor. Refer to
HAC-140, "MODE DOOR MOTOR : Removal and Installa-
.
+
−
Voltage
Mode door motor
Connector
Terminal
M342
1
Ground
0 V
3
4
6
Terminal
Resistance (
Ω
)
(Approx.)
2
1
90
3
4
6
HAC-100
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24BB LEFT AIR MIX DOOR MOTOR
B24BB LEFT AIR MIX DOOR MOTOR
DTC Logic
INFOID:0000000010432219
DTC DETECTION LOGIC
POSSIBLE CAUSE
[CIRCUIT SHORT TO BATTERY]
• Harness and connector [Air mix door motor (driver side) circuit is shorted to battery] (LHD models)
• Harness and connector [Air mix door motor (passenger side) circuit is shorted to battery] (RHD models)
• Air Mix door motor
• A/C auto amp.
[CIRC SHORT TO GRND OR OPEN]
• Harness and connector [Air mix door motor (driver side) circuit is open or shorted to ground] (LHD models)
• Harness and connector [Air mix door motor (passenger side) circuit is open or shorted to ground] (RHD
models)
• Air mix door motor
• A/C auto amp.
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-100, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010432220
1.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor LH connector.
3.
Turn ignition switch ON.
4.
Check voltage between air mix door motor LH harness connector and ground for several seconds after
operating the temperature control dial (driver side) while DUAL switch is OFF.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
B24BB
LEFT AIR MIX DOOR MOTOR
(Left side air mix door motor)
[CIRCUIT SHORT TO BATTERY]
Detect short to battery circuit of air mix door
motor [driver side (LHD models), passenger
side (RHD models)] circuits.
[CIRC SHORT TO GRND OR OPEN]
Detect open or short to ground circuit of air mix
door motor [driver side (LHD models), passen-
ger side (RHD models)] circuits.
+
−
Voltage
Air mix door motor LH
Connector
Terminal
M352
2
Ground
11 - 14 V
B24BB LEFT AIR MIX DOOR MOTOR
HAC-101
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
4.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
DRIVE SIGNAL CIRCUIT FOR SHORT
1.
Check continuity between air mix door motor LH harness connector and ground.
Air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M352
2
M140
40
Existed
Air mix door motor LH
—
Continuity
Connector
Terminal
M352
2
Ground
Not existed
Air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M352
1
M140
1
Existed
3
2
4
21
6
22
HAC-102
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24BB LEFT AIR MIX DOOR MOTOR
2.
Check voltage between air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
Check air mix door motor [driver side (LHD models), passenger side (RHD models)]. Refer to
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Replace air mix door motor [driver side (LHD models), passenger side (RHD models)]. Refer to
HAC-138, "AIR MIX DOOR MOTOR : Removal and Installation"
Component Inspection
INFOID:0000000010432221
1.
CHECK AIR MIX DOOR MOTOR [DRIVER SIDE (LHD MODELS), PASSENGER SIDE (RHD MODELS)]
1.
Remove air mix door motor [driver side (LHD models), passenger side (RHD models)]. Refer to
"AIR MIX DOOR MOTOR : Removal and Installation"
.
2.
Check resistance between air mix door motor [driver side (LHD models), passenger side (RHD models)]
terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace air mix door motor [driver side (LHD models), passenger side (RHD models)]. Refer to
HAC-138, "AIR MIX DOOR MOTOR : Removal and Installation"
Air mix door motor LH
—
Continuity
Connector
Terminal
M352
1
Ground
Not existed
3
4
6
+
−
Voltage
Air mix door motor LH
Connector
Terminal
M352
1
Ground
0 V
3
4
6
Terminal
Resistance (
Ω
)
(Approx.)
2
1
90
3
4
6
B24BD RIGHT AIR MIX DOOR MOTOR
HAC-103
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B24BD RIGHT AIR MIX DOOR MOTOR
DTC Logic
INFOID:0000000010432225
DTC DETECTION LOGIC
POSSIBLE CAUSE
[CIRCUIT SHORT TO BATTERY]
• Harness and connector [Air mix door motor (passenger side) circuit is shorted to battery] (LHD models)
• Harness and connector [Air mix door motor (driver side) circuit is shorted to battery] (RHD models)
• Air Mix door motor
• A/C auto amp.
[CIRC SHORT TO GRND OR OPEN]
• Harness and connector [Air mix door motor (passenger side) circuit is open or shorted to ground] (LHD mod-
els)
• Harness and connector [Air mix door motor (driver side) circuit is open or shorted to ground] (RHD models)
• Air mix door motor
• A/C auto amp.
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-103, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010432226
1.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor RH connector.
3.
Turn ignition switch ON.
4.
Check voltage between air mix door motor RH harness connector and ground for several seconds after
operating the temperature control dial (driver side) while DUAL switch is OFF.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
B24BD
RIGHT AIR MIX DOOR MOTOR
(Right side air mix door motor)
[CIRCUIT SHORT TO BATTERY]
Detect short to battery circuit of air mix door
motor [passenger side (LHD models), driver
side (RHD models)] circuits.
[CIRC SHORT TO GRND OR OPEN]
Detect open or short to ground circuit of air mix
door motor [passenger side (LHD models),
driver side (RHD models)] circuits.
+
−
Voltage
Air mix door motor RH
Connector
Terminal
M351
2
Ground
11 - 14 V
HAC-104
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24BD RIGHT AIR MIX DOOR MOTOR
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
4.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
DRIVE SIGNAL CIRCUIT FOR SHORT
1.
Check continuity between air mix door motor RH harness connector and ground.
Air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M351
2
M140
40
Existed
Air mix door motor RH
—
Continuity
Connector
Terminal
M351
2
Ground
Not existed
Air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M351
1
M140
9
Existed
3
10
4
30
6
31
B24BD RIGHT AIR MIX DOOR MOTOR
HAC-105
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
2.
Check voltage between air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
Check air mix door motor [passenger side (LHD models), driver side (RHD models)]. Refer to
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Replace air mix door motor [passenger side (LHD models), driver side (RHD models)]. Refer to
HAC-140, "MODE DOOR MOTOR : Removal and Installation"
Component Inspection
INFOID:0000000010432227
1.
CHECK AIR MIX DOOR MOTOR [PASSENGER SIDE (LHD MODELS), DRIVER SIDE (RHD MODELS)]
1.
Remove air mix door motor [passenger side (LHD models), driver side (RHD models)]. Refer to
"AIR MIX DOOR MOTOR : Removal and Installation"
.
2.
Check resistance between air mix door motor [passenger side (LHD models), driver side (RHD models)]
terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace air mix door motor [passenger side (LHD models), driver side (RHD models)]. Refer to
HAC-300, "AIR MIX DOOR MOTOR : Removal and Installation"
Air mix door motor RH
—
Continuity
Connector
Terminal
M351
1
Ground
Not existed
3
4
6
+
−
Voltage
Air mix door motor RH
Connector
Terminal
M351
1
Ground
0 V
3
4
6
Terminal
Resistance (
Ω
)
(Approx.)
2
1
90
3
4
6
HAC-106
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24D4 A/C CONTROL COMMUNICATION
B24D4 A/C CONTROL COMMUNICATION
DTC Logic
INFOID:0000000010499359
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness and connector (A/C control circuit is open or shorted)
• A/C control
• A/C auto amp.
FAIL-SAFE
If a communication error exists between the A/C auto amp. and A/C control for 30 seconds or longer, air con-
ditioning is controlled under the following conditions: A/C auto amp. is controlled in the setting state before the
communication error occurs for following setting.
• Set temperature
• Air outlet
• Blower fan speed
• Air inlet
• A/C switch
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-106, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010432230
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10 A fuse [No. 14 (without stop/start system), located in fuse block (J/B)], [No. 76 (with stop/start
system)].
NOTE:
Refer to
PG-104, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK A/C CONTROL POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect A/C control connector.
3.
Turn ignition switch ON.
4.
Check voltage between A/C control harness connector and ground.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
B24D4
A/C CONTROL COMM
(Air conditioning control commu-
nication)
[BUS SIGNAL/MESSAGE ERROR]
A malfunction is detected in the signal that is
sent from A/C control.
B24D4 A/C CONTROL COMMUNICATION
HAC-107
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between A/C control and fuse.
3.
CHECK A/C CONTROL GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK LIN COMMUNICATION SIGNAL CIRCUIT FOR OPEN
1.
Disconnect A/C auto amp. connector.
2.
Check continuity between A/C control harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK LIN COMMUNICATION SIGNAL CIRCUIT FOR SHORT
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C control. Refer to
HAC-128, "Removal and Installation"
NO
>> Repair harness or connector.
+
−
Voltage
(Approx.)
A/C control
Connector
Terminal
M6
4
Ground
5 V
A/C control
—
Continuity
Connector
Terminal
M6
1
Ground
Existed
A/C control
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M6
8
M141
73
Existed
A/C control
—
Continuity
Connector
Terminal
M6
8
Ground
Not existed
HAC-108
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis Procedure
INFOID:0000000010432228
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10 A fuse [No. 14 (without stop/start system), located in fuse block (J/B)], [No. 76 (with stop/start
system)].
NOTE:
Refer to
PG-104, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK A/C AUTO AMP. ACCESSORY POWER SUPPLY
1.
Disconnect A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between A/C auto amp. and fuse.
3.
CHECK A/C AUTO AMP. GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
A/C CONTROL
A/C CONTROL : Diagnosis Procedure
INFOID:0000000010432229
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10 A fuse [No. 14 (without stop/start system), located in fuse block (J/B)], [No. 76 (with stop/start
system)].
NOTE:
Refer to
PG-104, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK A/C CONTROL POWER SUPPLY
1.
Turn ignition switch OFF.
+
−
Voltage
A/C auto amp.
Connector
Terminal
M141
41
Ground
11 - 14 V
A/C auto amp.
—
Continuity
Connector
Terminal
M141
43
Ground
Existed
POWER SUPPLY AND GROUND CIRCUIT
HAC-109
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
2.
Disconnect A/C control connector.
3.
Turn ignition switch ON.
4.
Check voltage between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between A/C control and fuse block (J/B).
3.
CHECK A/C CONTROL GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C control. Refer to
HAC-128, "Removal and Installation"
NO
>> Repair harness or connector.
+
−
Voltage
A/C control
Connector
Terminal
M6
4
Ground
11 - 14 V
A/C control
—
Continuity
Connector
Terminal
M6
1
Ground
Existed
HAC-110
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
BLOWER MOTOR
BLOWER MOTOR
Diagnosis Procedure
INFOID:0000000010432235
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check following fuses.
-
20 A fuse [Nos. 7 and 17, located in fuse block (J/B)]
NOTE:
Refer to
PG-104, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECKPOWER TRANSISTOR POWER SUPPLY
1.
Disconnect power transistor connector.
2.
Turn ignition switch ON.
3.
Check voltage between power transistor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK BLOWER RELAY
1.
Turn ignition switch OFF.
2.
Check blower relay. Refer to
HAC-113, "Component Inspection (Blower Relay)"
.
Is the inspection result normal?
YES
>> Repair harness or connector between power transistor and fuse.
NO
>> Replace blower relay.
4.
CHECK BLOWER MOTOR CONTROL CIRCUIT
1.
Turn ignition switch OFF.
2.
Connect power transistor connector.
3.
Disconnect blower motor connector.
4.
Turn ignition switch ON.
5.
Check voltage between blower motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK BLOWER MOTOR CONTROL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect power transistor connector.
3.
Check continuity between power transistor harness connector and blower motor harness connector.
+
−
Voltage
Blower motor
Connector
Terminal
M359
4
Ground
Battery voltage
+
−
Voltage
Blower motor
Connector
Terminal
M357
1
Ground
Battery voltage
BLOWER MOTOR
HAC-111
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Replace power transistor. Refer to
HAC-136, "Removal and Installation"
.
NO
>> Repair harness or connector.
6.
CHECK BLOWER MOTOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect power transistor connector.
3.
Check continuity between power transistor harness connector and blower motor harness connector.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair harness or connector.
7.
CHECK POWER TRANSISTOR GROUND CIRCUIT
Check continuity between power transistor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair harness or connector.
8.
CHECK POWER TRANSISTOR CONTROL SIGNAL
1.
Connect power transistor connector and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Set air outlet to VENT.
4.
Change fan speed from 1st – 7th, and check duty ratios between power transistor harness connector and
ground by using an oscilloscope.
NOTE:
Calculate the drive signal duty ratio as shown in the figure.
T2 = Approx. 2.5 ms
Power transistor
Blower motor
Continuity
Connector
Terminal
Connector
Terminal
M360
5
M357
1
Existed
Power transistor
Blower motor
Continuity
Connector
Terminal
Connector
Terminal
M360
6
M357
2
Existed
Power transistor
—
Continuity
Connector
Terminal
M359
2
Ground
Existed
+
−
Condition
Duty ratio
(Approx.)
Voltage
Power transistor
Connector
Terminal
Fan speed (manual)
Air outlet: VENT
For Europe
and Russia
Except for Eu-
rope and Rus-
sia
M359
1
Ground
1st
21%
23%
2nd
24%
29%
3rd
31%
36%
4th
40%
44%
5th
54%
52%
6th
70%
61%
7th
100%
72%
JPIIA1646GB
HAC-112
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
BLOWER MOTOR
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 9.
9.
CHECK POWER TRANSISTOR CONTROL SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect power transistor connector and A/C auto amp. connector.
3.
Check continuity between power transistor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
10.
CHECK BLOWER MOTOR FEEDBACK SIGNAL
When fan speed is set to OFF, and check voltage between power transistor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
11.
CHECK BLOWER MOTOR FEEDBACK SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect power transistor connector and A/C auto amp. connector.
3.
Check continuity between power transistor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-129, "Removal and Installation"
.
NO
>> Repair harness or connector.
12.
REPLACE POWER TRANSISTOR
1.
Turn ignition switch OFF.
2.
Replace power transistor. Refer to
HAC-136, "Removal and Installation"
3.
Turn ignition switch ON.
4.
Change fan speed from 1st – 7th, and check that blower motor operates normally.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace blower motor. Refer to
VTL-17, "Removal and Installation"
.
Component Inspection (Blower Motor)
INFOID:0000000010432236
1.
CHECK BLOWER MOTOR-I
1.
Remove blower motor. Refer to
VTL-17, "Removal and Installation"
2.
Check that there is not any mixing foreign object in the blower motor.
Is the inspection result normal?
Power transistor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M359
3
M140
27
Existed
+
−
Voltage
Power transistor
Connector
Terminal
M359
1
Ground
Battery voltage
Power transistor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M359
1
M140
37
Existed
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст