Nissan Primera P12. Instruction - page 17
TROUBLE DIAGNOSIS
ATC-61
C
D
E
F
G
H
I
K
L
M
A
B
ATC
LAN System Circuit
EJS002XY
SYMPTOM: Mode door motor, intake door motor and/or air mix door motor does not operate normally.
DIAGNOSTIC PROCEDURE FOR LAN SYSTEM CIRCUIT
1.
CHECK POWER SUPPLY FOR AUTO AMP.
OK or NG
OK
>> GO TO 2.
NG
>> Replace auto amp.
2.
CHECK SIGNAL FOR AUTO AMP.
Confirm A/C LAN signal using an oscilloscope.
OK or NG
OK
>> GO TO 3.
NG
>> Replace auto amp.
RJIA1326E
Terminal
Voltage
(+)
(
−
)
Auto amp. connec-
tor
Terminal No.
(Wire color)
M76
21 (G/Y)
Ground
Approx. 12V
RJIA0273E
Terminal
Voltage
(+)
(
−
)
Auto amp. connector
Terminal No.
(Wire color)
M75
5 (R/Y)
Ground
HAK0652D
ATC-62
TROUBLE DIAGNOSIS
3.
CHECK POWER SUPPLY FOR MOTOR
OK or NG
OK
>> GO TO 4.
NG
>> Replace harness or connector.
4.
CHECK SIGNAL FOR MOTOR
Confirm A/C LAN signal using an oscilloscope.
OK or NG
OK
>> GO TO 5.
NG
>> Replace harness or connector.
5.
CHECK MOTOR GROUND CIRCUIT
OK or NG
OK
>> GO TO 6.
NG
>> Replace harness or connector.
Door motor
Terminal
Voltage
(+)
(
−
)
Connector
Terminal No.
(Wire color)
Mode
M44
1 (G/Y)
Ground
Approx.
12V
Air mix
M40
1 (G/Y)
Intake
M73
1 (G/Y)
RJIA0509E
Door motor
Terminal
Voltage
(+)
(
−
)
Connector
Terminal No.
(Wire color)
Mode
M44
3 (R/Y)
Ground
Air mix
M40
3 (R/Y)
Intake
M73
3 (R/Y)
HAK0652D
Door motor
Terminal
Continuity
(+)
(
−
)
Connector
Terminal No.
(Wire color)
Mode
M44
2 (B)
Ground
Yes
Air mix
M40
2 (B)
Intake
M73
2 (B)
RJIA0511E
TROUBLE DIAGNOSIS
ATC-63
C
D
E
F
G
H
I
K
L
M
A
B
ATC
6.
CHECK MOTOR OPERATION
Disconnect and reconnect the motor connector and confirm the motor operation.
OK or NG
OK
>> (Return to operate normally.)
●
Poor contacting the motor connector
NG
>> (Does not operate normally.)
●
GO TO 7
7.
CHECK MODE DOOR MOTOR OPERATION
1.
Disconnect mode door motor and air mix door motor connector.
2.
Reconnect mode door motor connector and confirm the mode door motor operation.
OK or NG
OK
>> (Mode door motor operates normally.)
●
GO TO 8
NG
>> (Mode door motor does not operate normally.)
●
Replace the mode door motor.
8.
CHECK AIR MIX DOOR MOTOR OPERATION
1.
Disconnect mode door motor connector.
2.
Reconnect air mix door motor connector and confirm the air mix door motor operation.
OK or NG
OK
>> (Air mix door motor operates normally.)
●
GO TO 9
NG
>> (Air mix door motor does not operate normally.)
●
Replace the air mix door motor.
9.
CHECK INTAKE DOOR MOTOR OPERATION
1.
Disconnect air mix door motor connector.
2.
Reconnect intake door motor connector and confirm the intake door motor operation.
OK or NG
OK
>> (Intake door motor operates normally.)
●
Replace auto amp.
NG
>> (Intake door motor does not operate normally.)
●
Replace intake door motor.
ATC-64
TROUBLE DIAGNOSIS
Mode Door Motor Circuit
EJS002XZ
SYMPTOM:
●
Air outlet does not change.
●
Mode door motor does not operate normally.
INSPECTION FLOW
*1
ATC-28, "Discharge Air Flow"
*2
ATC-56, "Operational Check"
*3
ATC-49, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No.1
*4
ATC-49, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 5
*5
ATC-100, "Ambient Sensor Circuit"
*6
ATC-102, "In-vehicle Sensor Circuit"
*7
ATC-105, "Sunload Sensor Circuit"
*8
ATC-67, "Air Mix Door Motor Circuit"
*9
ATC-49, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No.14
RJIA0772E