2003 NISSAN ALMERA N16 Electronic Repair Manual

Page 2049 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-69
C
D
E
F
G
H
I
K
L
MA
B
AT C
Blower Motor CircuitEJS001ZO
SYMPTOM:
●Blower motor operation is malfunctioning.
●Blower motor operation is malfunctioning under out of startin

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NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-70
TROUBLE DIAGNOSIS
SYSTEM DESCRIPTION
Component Parts
Fan speed control system components are:
●Auto amp.
●A/C LAN system (PBR built-in air mix door motor, mode door motor and intake door mo

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NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-71
C
D
E
F
G
H
I
K
L
MA
B
AT C
In  the  most  extreme  case  (very  low  ambient)  the  blower  starting  delay  will  be  150  seconds  as  described
above. After this delay, th

Page 2052 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-72
TROUBLE DIAGNOSIS
1. CHECK POWER SUPPLY FOR BLOWER MOTOR
Disconnect blower motor harness connector.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fuses (Nos. 14 and 
16, loca

Page 2053 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-73
C
D
E
F
G
H
I
K
L
MA
B
AT C
5.CHECK GROUND CIRCUIT FOR FAN CONTROL AMP.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6.CHECK FOR AUTO AMP. OUTPUT
Reconnect the f

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NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-74
TROUBLE DIAGNOSIS
9. CHECK CIRCUIT CONTINUITY BETWEEN AUTO AMP. AND FAN CONTROL AMP.
OK or NG
OK >> Replace auto amp.
NG >> Repair harness or connector.
COMPONENT INSPECTION
Blower Motor
Confir

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NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-75
C
D
E
F
G
H
I
K
L
MA
B
AT C
Magnet Clutch CircuitEJS001ZP
SYMPTOM: Magnet clutch does not engage.
INSPECTION FLOW
*1ATC-42, "Self-diagnosis Function",
see No.1.*2ATC-1

Page 2056 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-76
TROUBLE DIAGNOSIS
SYSTEM DESCRIPTION
Auto amplifier controls compressor operation by ambient temperature and signal from ECM.
Low Temperature Protection Control
Auto amplifier will turn the com