2005 NISSAN X-TRAIL Service Repair Manual

Page 3241 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual TROUBLE DIAGNOSIS
ATC-63
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of ±3°C between temperature setting (Temperat

Page 3242 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual ATC-64
TROUBLE DIAGNOSIS
 
AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION
When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.
Operating procedures for this trimmer

Page 3243 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual TROUBLE DIAGNOSIS
ATC-65
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
Operational CheckEJS004GU
The purpose of the operational check is to confirm that the system operates properly.
CHECKING BLOWER
1. Turn fan contr

Page 3244 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual ATC-66
TROUBLE DIAGNOSIS
 
CHECKING TEMPERATURE DECREASE
1. Turn temperature control dial until 18°C.
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for AT C

Page 3245 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual TROUBLE DIAGNOSIS
ATC-67
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
Power Supply and Ground Circuit for Auto Amp.EJS004GV
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
COMPONENT DESCRIPTION
Auto Amp. (Auto

Page 3246 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual ATC-68
TROUBLE DIAGNOSIS
 
Potentio Temperature Control (PTC)
The PTC is built into the auto amp. It can be set at an interval of 1°C
in the 18°C to 32°C temperature range by turning the temperatur

Page 3247 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual TROUBLE DIAGNOSIS
ATC-69
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
2. CHECK GROUND CIRCUIT FOR AUTO AMP.
1. Turn ignition switch OFF.
2. Check continuity between auto amp. harness connector M52
terminal 3 (B) and

Page 3248 of 4555

NISSAN X-TRAIL 2005  Service Repair Manual ATC-70
TROUBLE DIAGNOSIS
 
2. CHECK SIGNAL FOR AUTO AMP.
Confirm A/C LAN signal between auto amp. harness connector M52
terminal 15 (G) and ground using an oscilloscope.
OK or NG
OK >> GO TO 3.
NG >>