2003 NISSAN ALMERA N16 Electronic Repair Manual

Page 2057 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-77
C
D
E
F
G
H
I
K
L
MA
B
AT C
1.CHECK POWER SUPPLY FOR COMPRESSOR
Disconnect compressor harness connector.
OK or NG
OK >> Check magnet clutch coil.
1. If  NG,  replace  magnet

Page 2058 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-78
TROUBLE DIAGNOSIS
5. CHECK COIL SIDE CIRCUIT OF A/C RELAY
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK AMBIENT SENSOR
Refer to ATC-100, "
Ambient Sensor Circuit"

Page 2059 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-79
C
D
E
F
G
H
I
K
L
MA
B
AT C
9.CHECK FAN ON SIGNAL
OK or NG
OK >> GO TO 10.
NG >>
●If  the  voltage  is  approx.  5V  when  the  blower  fan  is
ON: Replace the auto amp.
●

Page 2060 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-80
TROUBLE DIAGNOSIS
13. CHECK CIRCUIT CONTINUITY BETWEEN DUAL-PRESSURE SWITCH AND AUTO AMP. (WITH 
DIESEL ENGINE)
Disconnect  dual-pressure  switch  connector  and  auto  amp.  connec-
tor.
OK or

Page 2061 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-81
C
D
E
F
G
H
I
K
L
MA
B
AT C
17.CHECK CIRCUIT CONTINUITY BETWEEN COMBINATION METER AND AUTO AMP.
Disconnect combination meter connector and auto amp. connector.
OK or NG
OK >>

Page 2062 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-82
TROUBLE DIAGNOSIS
1. CHECK POWER SUPPLY FOR COMPRESSOR
Disconnect compressor harness connector.
OK or NG
OK >> Check magnet clutch coil.
1. If  NG,  replace  magnet  clutch.  Refer  to ATC-138,

Page 2063 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-83
C
D
E
F
G
H
I
K
L
MA
B
AT C
5.CHECK COIL SIDE CIRCUIT OF A/C RELAY
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6.CHECK AMBIENT SENSOR
Refer to ATC-100, "
Am

Page 2064 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual ATC-84
TROUBLE DIAGNOSIS
9. CHECK MULTIPLEX COMMUNICATION CIRCUIT
Refer to ATC-109, "
Multiplex Communication Circuit" .
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
10. CH