Nissan Almera Tino V10. Manual — part 220
ATC-76
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
.
2. Go to
ATC-42, "FUNCTION CONFIRMATION PROCEDURE"
and perform self-diagnosis
STEP-4. Confirm that magnet clutch operation is usual.
NG
>> Disconnect A/C relay. And GO TO 2.
2.
CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND COMPRESSOR
OK or NG
OK
>> Check harness for short. And GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK POWER SUPPLY FOR A/C RELAY
Disconnect A/C relay.
OK or NG
OK
>> GO TO 4.
NG
>> Check power supply circuit and 10A (No.15) fuse at fuse
block. Refer to EL-11, "POWER SUPPLY ROUTING".
●
If OK, check for open circuit in wiring harness. Repair or replace as necessary.
●
If NG, replace fuse and check wiring harness for short circuit. Repair or replace as necessary.
4.
CHECK A/C RELAY AFTER DISCONNECTING IT
Refer to
.
OK or NG
OK
>> Reconnect A/C relay. And GO TO 5.
NG
>> 1. Replace A/C relay.
2. Go to
ATC-42, "FUNCTION CONFIRMATION PROCEDURE"
and perform self-diagnosis
STEP-4. Confirm that magnet clutch operation is usual.
Terminal
Voltage
(+)
(-)
Compressor
connector
Terminal No.
(Wire color)
E32
1 (L/R)
Ground
Battery voltage
RJIA0295E
Terminal
Continuity
(+)
(-)
A/C relay con-
nector
Terminal No.
(Wire color)
Compressor
connector
Terminal No.
(Wire color)
E9
3 (L/R)
E32
1 (L/R)
Yes
RJIA0793E
Terminal
Voltage
(+)
(-)
A/C relay con-
nector
Terminal No.
(Wire color)
E9
1 (L/Y)
Ground
Battery voltage
E9
5 (L/Y)
RJIA0794E
TROUBLE DIAGNOSIS
ATC-77
C
D
E
F
G
H
I
K
L
M
A
B
ATC
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-95, "Ambient Sensor Circuit"
.
OK or NG
OK
>>
●
With gasoline engine: GO TO 7.
●
With diesel engine: GO TO 8.
NG
>> Repair or replace the malfunctioning part (s).
7.
CHECK REFRIGERANT PRESSURE SENSOR (WITH QG ENGINE)
Refer to
ATC-80, "Refrigerant Pressure Sensor (With QG Engine)"
.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace the malfunctioning part (s).
8.
CHECK COMPRESSOR FEED BACK SIGNAL
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 16.
Terminal
Continuity
(+)
(-)
A/C relay
connector
Terminal No.
(Wire color)
Smart
entrance con-
trol unit con-
nector
Terminal No.
(Wire color)
E9
2 (L)
M100
41 (L)
Yes
RJIA0795E
Terminal
Condition
Voltage
(+)
(-)
Auto amp.
connector
Terminal No.
(Wire color)
M110
18 (BR/W)
Ground
A/C SW: ON
Approx. 0V
A/C SW: ON
(When refriger-
ant pressure sen-
sor connector is
disconnected)
Approx. 5V
RJIA0796E
ATC-78
TROUBLE DIAGNOSIS
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.
●
If the voltage is approx. 0V when the blower fan is OFF: GO TO 17.
10.
CHECK COMPRESSOR ON SIGNAL
OK or NG
OK
>> GO TO 11.
NG
>>
●
If the voltage is approx. 5V when the A/C switch is
ON: Replace the auto amp.
●
If the voltage is approx. 0V when the A/C switch is OFF.
–
With gasoline engine: GO TO 18.
–
With diesel engine: GO TO 13.
11.
CHECK MULTIPLEX COMMUNICATION CIRCUIT
Refer to
ATC-104, "Multiplex Communication Circuit"
.
OK or NG
OK
>> GO TO 12.
NG
>> Repair harness or connector.
12.
CHECK CAN CIRCUIT
Refer to CAN communication. EL-459, "CAN COMMUNICATION".
OK or NG
OK
>> INSPECTION END.
NG
>> Repair or replace malfunctioning part (s).
Terminal
Condition
Voltage
(+)
(-)
Auto amp.
connector
Terminal No.
(Wire color)
M111
29 (LG/B)
Ground
Blower fan: ON
Approx. 0V
Blower fan: OFF
Approx. 5V
RJIA0797E
Terminal
Condition
Voltage
(+)
(-)
Auto amp.
connector
Terminal No.
(Wire color)
M111
22 (L/R)
Ground
A/C SW: ON
Approx. 0V
A/C SW: OFF
Approx. 5V
RJIA0798E
TROUBLE DIAGNOSIS
ATC-79
C
D
E
F
G
H
I
K
L
M
A
B
ATC
13.
CHECK CIRCUIT CONTINUITY BETWEEN DUAL-PRESSURE SWITCH AND AUTO AMP. (WITH YD
ENGINE)
Disconnect dual-pressure switch connector and auto amp. connec-
tor.
OK or NG
OK
>> GO TO 14.
NG
>> Repair harness or connector.
14.
CHECK DUAL-PRESSURE SWITCH CIRCUIT (WITH YD ENGINE)
Refer to
ATC-81, "Dual-Pressure Switch (With YD Engine)"
.
OK or NG
OK
>> GO TO 15.
NG
>> Repair or replace malfunctioning part (s).
15.
CHECK CIRCUIT CONTINUITY BETWEEN DUAL-PRESSURE SWITCH AND COMBINATION
METER (WITH YD ENGINE)
Disconnect combination meter connector.
OK or NG
OK
>> Replace dual-pressure switch.
NG
>> Repair harness or connector.
16.
CHECK CIRCUIT CONTINUITY BETWEEN COMBINATION METER AND AUTO AMP.
Disconnect combination meter connector and auto amp. connector.
OK or NG
OK
>> GO TO 11.
NG
>> Repair harness or connector.
Terminal
Continuity
(+)
(-)
Dual-pres-
sure switch
connector
Terminal No.
(Wire color)
Auto amp.
connector
Terminal No.
(Wire color)
E42
1 (L/R)
M111
22 (L/R)
Yes
RJIA1699E
Terminal
Continuity
(+)
(-)
Dual-pres-
sure switch
connector
Terminal No.
(Wire color)
Combination
meter connec-
tor
Terminal No.
(Wire color)
E42
2 (R/L)
M84
30 (PU)
Yes
RJIA2348E
Terminal
Continuity
(+)
(-)
Combination
meter connec-
tor
Terminal No.
(Wire color)
Auto amp.
connector
Terminal No.
(Wire color)
M84
7 (BR/W)
M110
18 (BR/W)
Yes
RJIA2349E
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