Nissan Almera Tino V10. Instruction — part 214
ATC-52
TROUBLE DIAGNOSIS
CHECKING RECIRCULATION
1.
Press recirculation (REC) switch one time. Recirculation indica-
tor should illuminate.
2.
Listen for intake door position change (you should hear blower
sound change slightly).
If NG, go to
ATC-65, "Intake Door Motor Circuit"
.
If OK, continue with next check.
CHECKING FRESH SWITCH
1.
Press fresh (FRE) switch one time. Fresh switch indicator
should illuminate.
2.
Listen for intake door position change (you should hear blower
sound change slightly).
If NG, go to
ATC-65, "Intake Door Motor Circuit"
.
If OK, continue with next check.
CHECKING TEMPERATURE DECREASE
1.
Turn the temperature dial until 18
°
C (60
°
F) is displayed.
2.
Check for cold air at discharge air outlets.
If NG, go to
ATC-82, "Insufficient Cooling"
.
If OK, continue with next check.
CHECKING TEMPERATURE INCREASE
1.
Turn the temperature dial until 32
°
C (90
°
F) is displayed.
2.
Check for hot air at discharge air outlets.
If NG, go to
ATC-90, "Insufficient Heating"
.
If OK, continue with next check.
RJIA1686E
RJIA1687E
RJIA1688E
RJIA1689E
TROUBLE DIAGNOSIS
ATC-53
C
D
E
F
G
H
I
K
L
M
A
B
ATC
CHECKING AUTO MODE
1.
Press temperature dial.
2.
Display should indicate AUTO (not ECON).
●
Confirm that the compressor clutch engages (audio or visual
inspection). (Discharge air and blower speed will depend on
ambient, in-vehicle, and set temperatures.)
If NG, go to
ATC-54, "Power Supply and Ground Circuit for Auto
, then if necessary, go to
ATC-74, "Magnet Clutch Circuit"
.
If all operational check are OK (symptom can not be duplicated), go
to Incident Simulation Tests in GI-21, “How to Perform Efficient Diag-
nosis for an Electrical Incident” and perform tests as outlined to sim-
ulate driving conditions environment. If symptom appears, refer to
and perform applicable trouble diag-
nosis procedures.
RJIA1690E
ATC-54
TROUBLE DIAGNOSIS
Power Supply and Ground Circuit for Auto Amp.
EJS0030B
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
COMPONENT DESCRIPTION
Automatic Amplifier (Auto Amp.)
The auto amplifier has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. The air mix door motor, mode door motor, intake door
motor, blower motor and compressor are then controlled.
The auto amplifier is unitized with control mechanisms. When the
various switches and temperature adjustment dial are operated, data
is input to the auto amp. from the AV AND NAVI CONTROL UNIT (or
DISPLAY UNIT) using multiplex communication.
Self-diagnostic functions are also built into auto amplifier to provide
quick check of malfunctions in the auto air conditioner system.
Potentio Temperature Control (PTC)
The PTC is built into the multi-function switch. It can be set at an
interval of 0.5
°
C (1.0
°
F) in the 18
°
C (60
°
F) to 32
°
C (90
°
F) tempera-
ture range by turning the temperature dial. The set temperature is
displayed.
*1
EL-11, “POWER SUPPLY ROUT-
ING”
*2
*3
ATC-55, "DIAGNOSTIC PROCE-
DURE FOR A/C SYSTEM"
RJIA1691E
RJIA0750E
RJIA1692E
TROUBLE DIAGNOSIS
ATC-55
C
D
E
F
G
H
I
K
L
M
A
B
ATC
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM
SYMPTOM: A/C system does not come on.
1.
CHECK POWER SUPPLY CIRCUIT FOR AUTO AMP.
OK or NG
OK
>> GO TO 2.
NG
>> Check 10A fuses (Nos. 10 and 12) and 15A fuses (Nos. 14 and 16) located in the fuse block (J/B).
●
If fuses are OK, check for open circuit in wiring harness. Repair or replace as necessary.
●
If fuses are NG, replace fuse and check wiring harness for short circuit. Repair or replace as
necessary.
2.
CHECK GROUND CIRCUIT FOR AUTO AMP.
OK or NG
OK
>> Replace auto amp. INSPECTION END
NG
>> Repair or replace harness.
RJIA0768E
Terminal
Ignition switch position
(+)
(-)
OFF
ACC
ON
Auto amp.
connector
Terminal No.
(Wire color)
M111
26 (R/B)
Ground
Approx.
12V
Approx.
12V
Approx.
12V
27 (Y/G)
Approx.
0V
Approx.
0V
Approx.
12V
33 (L/W)
Approx.
0V
Approx.
12V
Approx.
12V
RJIA0769E
Terminal
Continuity
(+)
(-)
Auto amp. con-
nector
Terminal No.
(Wire color)
M111
24 (B)
Ground
Yes
RJIA0770E
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