Nissan Tiida C11. Instruction — part 866
HAC-128
< COMPONENT DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 11.
11.
CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector M50 and BCM connector
M19.
3.
Check continuity between front air control harness connector
M50 (A) terminal 12 and BCM harness connector M19 (B) termi-
nal 50.
4.
Check continuity between front air control harness connector M50 (A) terminal 12 and ground.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Repair harness or connector.
12.
CHECK VOLTAGE FOR FRONT AIR CONTROL (FAN ON SIGNAL)
1.
Reconnect front air control connector M50 and BCM connector
M18.
2.
Turn ignition switch ON.
3.
Confirm fan ON signal between front air control harness connec-
tor M50 terminal 12 and ground using oscilloscope.
Is the inspection result normal?
YES
>> Replace front air control. Refer to XX.
NO
>> Replace BCM. Refer to XX.
13.
CHECK CAN COMMUNICATION
Check CAN communication. Refer to
XX-XX, "*****"
.
• BCM – ECM
FAN SW ON
: FAN ON SIG ON
FAN SW OFF
: FAN ON SIG OFF
A
B
Continuity
Connector
Terminal
Connector
Terminal
Front air control:
M50
12
BCM: M19
50
Yes
A
Ground
Continuity
Connector
Terminal
Front air control:
M50
12
No
AWIIA0566ZZ
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
Connec-
tor
Terminal
Ground
Front air
control:
M50
12
Fan speed:
1st
SJIA0946E
ZJIA0583J
MAGNET CLUTCH
HAC-129
< COMPONENT DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
• ECM – IPDM E/R
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace malfunction part(s).
HAC-130
< COMPONENT DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
AMBIENT SENSOR
AMBIENT SENSOR
Component Description
INFOID:0000000001547435
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is attached on the radiator core support upper. It
detects ambient temperature and converts it into a resistance value
which is then input into the front air control.
AMBIENT TEMPERATURE INPUT PROCESS
The front air control includes a processing circuit for the ambient sensor input. However, when the tempera-
ture detected by the ambient sensor increases quickly, the processing circuit retards the front air control func-
tion. It only allows the front air control to recognize an ambient temperature increase of 0.33
°
C (0.6
°
F) per 100
seconds.
As an example, consider stopping for a few minutes after high speed driving. Although the actual ambient tem-
perature has not changed, the temperature detected by the ambient sensor will increase. This is because the
heat from the engine compartment can radiate to the front grille area, location of the ambient sensor.
Ambient Sensor Diagnosis Procedure
INFOID:0000000001547436
DIAGNOSTIC PROCEDURE FOR AMBIENT SENSOR
SYMPTOM: Ambient sensor circuit is open or shorted. (21 or
AUTO
21
is indicated on front air control As a result of performing self-diagno-
sis STEP-2.)
1.
CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
1.
Turn ignition switch OFF.
2.
Disconnect ambient sensor connector E60.
3.
Turn ignition switch ON.
4.
Check voltage between ambient sensor harness connector E60
terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
AWIIA0600ZZ
AWIIA0306GB
Terminals
Voltage
(Approx.)
(+)
(
−
)
Connector
Terminal
Ground
Ambient sensor:
E60
2
5V
AWIIA0307ZZ
AMBIENT SENSOR
HAC-131
< COMPONENT DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO
>> GO TO 4.
2.
CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector M60.
3.
Check continuity between ambient sensor harness connector
E60 (A) terminal 1 and front air control harness connector M51
(B) terminal 33.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AMBIENT SENSOR
HAC-131, "Ambient Sensor Component Inspection"
Is the inspection result normal?
YES
>> 1.
Replace front air control. Refer to XX.
2.
Go to self-diagnosis
HAC-98, "Front Air Control Self-Diagnosis"
and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO
>> 1.
Replace ambient sensor. Refer to XX.
2.
Go to self-diagnosis
HAC-98, "Front Air Control Self-Diagnosis"
and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
4.
CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector M51.
3.
Check continuity between ambient sensor harness connector
E60 (A) terminal 2 and front air control harness connector M51
(B) terminal 30.
4.
Check continuity between ambient sensor harness connector
E34 (A) terminal 2 and ground.
Is the inspection result normal?
YES
>> 1.
Replace front air control. Refer to XX.
2.
Go to self-diagnosis
HAC-98, "Front Air Control Self-Diagnosis"
and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO
>> Repair harness or connector.
Ambient Sensor Component Inspection
INFOID:0000000001547437
COMPONENT INSPECTION
Ambient Sensor
A
B
Continuity
Connector
Terminal
Connector
Terminal
Ambient sensor:
E60
1
Front air control:
M51
33
Yes
AWIIA0308ZZ
A
B
Continuity
Connector
Terminal
Connector
Terminal
Ambient sensor:
E60
2
Front air control:
M51
30
Yes
A
Ground
Continuity
Connector
Terminal
Ambient sensor:
E60
2
No
AWIIA0309ZZ
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