Nissan Qashqai (2007-2010). Manual — part 949
HAC-156
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
BLOWER MOTOR
Confirm smooth rotation of the blower motor (1).
BLOWER FAN RESISTOR
Check continuity between blower fan resistor connector (1) M305
terminal 1 and 2, 3, 4.
:
Vehicle front
JPIIA0028ZZ
:
Vehicle front
JPIIA0034ZZ
Blower fan resistor
Resistance (
Ω
)
Connector
Terminal
Connector
Terminal
M305
1
M305
2
Approx. 0.3
3
Approx. 0.9
4
Approx. 2.0
MAGNET CLUTCH
HAC-157
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
C
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MAGNET CLUTCH
Description
INFOID:0000000001069976
Magnet clutch drives a compressor, by a signal of IPDM E/R.
Component Function Check
INFOID:0000000001069977
1.
CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK
1.
Turn fan control dial to the desired (1 to 4 speed) position.
2.
Press A/C switch.
3.
A/C switch indicator will turn ON. Confirm that the magnet clutch engages (sound or visual inspection).
Does the magnet clutch operate?
YES
>> END.
NO
>> Go to Diagnosis Procedure. Refer to
HAC-157, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000001069978
1.
PERFORM AUTO ACTIVE TEST
Perform “AUTO ACTIVE TEST”. Refer to
PCS-9, "Diagnosis Description"
Does the magnet clutch operate?
YES
>> •
WITH CONSULT-III: GO TO 5.
•
WITHOUT CONSULT-III: GO TO 6.
NO
>> Check 10A fuse (No. 53, located in IPDM E/R), and GO TO 2.
2.
CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector and compressor connector.
3.
Check continuity between IPDM E/R harness connector E12 terminal 23 and compressor harness con-
nector F17 (With Gasoline Engine) or F18 (With Diesel Engine) terminal 1.
With Gasoline Engine
With Diesel Engine
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK CIRCUIT CONTINUITY BETWEEN COMPRESSOR GROUND
1.
Turn ignition switch OFF.
2.
Check continuity between compressor harness connector F17 (With Gasoline Engine) or F18 (With Diesel
Engine) terminal 2 and ground.
With Gasoline Engine
IPDM E/R
Compressor
Continuity
Connector
Terminal
Connector
Terminal
E12
23
F17
1
Continuity should exist
IPDM E/R
Compressor
Continuity
Connector
Terminal
Connector
Terminal
E12
23
F18
1
Continuity should exist
Compressor
—
Continuity
Connector
Terminal
F17
2
Ground
Continuity should exist
HAC-158
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
MAGNET CLUTCH
With Diesel Engine
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct current to terminal.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Replace compressor.
5.
CHECK BCM INPUT (AIR COND SW) SIGNAL
Check compressor ON/OFF signal in “DATA MONITOR”. Refer to
HAC-140, "AIR CONDITIONER : CON-
SULT-III Function (BCM - MANUAL AIR CONDITIONER)"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 6.
6.
CHECK CIRCUIT CONTINUITY BETWEEN HEATER CONTROL PANEL AND BCM
1.
Turn ignition switch OFF.
2.
Disconnect heater control panel connector and BCM harness connector.
3.
Check continuity between heater control panel harness connector M54 terminal 7 and BCM harness con-
nector M65 terminal 14.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair harness or connector.
7.
CHECK A/C SWITCH SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect heater control panel connector.
3.
Turn ignition switch ON.
4.
Check voltage between heater control panel harness connector M54 terminal 7 and ground.
5.
Reonnect heater control panel connector.
6.
Press A/C switch and turn fan control dial except OFF position.
7.
Check voltage between heater control panel harness connector M54 terminal 7 and ground.
Compressor
—
Continuity
Connector
Terminal
F18
2
Ground
Continuity should exist
A/C SW ON
: AIR COND SW ON
A/C SW OFF
: AIR COND SW OFF
Heater control panel
BCM
Continuity
Connector
Terminal
Connector
Terminal
M54
7
M65
14
Continuity should exist
(+)
(
−
)
Voltage
Heater control panel
—
Connector
Terminal
M54
7
Ground
Battery voltage
MAGNET CLUTCH
HAC-159
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace heater control panel.
8.
CHECK REFRIGERANT PRESSURE SENSOR
WITH CONSULT-III
1.
Start the engine.
2.
Check voltage of refrigerant pressure sensor in “DATA MONITOR”. Refer to
HAC-182, "MR20DE : Reference Value"
(MR20DE),
(K9K).
WITHOUT CONSULT-III
1.
Start the engine.
2.
Check voltage between ECM harness connector F8 terminal 41 (With Gasoline Engine) F68 terminal 78
(With Diesel Engine) and ground.
With Gasoline Engine
With Diesel Engine
Is the inspection result normal?
YES
>> •
WITH CONSULT-III: GO TO 9.
•
WITHOUT CONSULT-III: GO TO 10.
NO
>> Refer to
[HR16DE (WITH EURO-OBD)],
[MR20DE (WITH
EC-1215, "Diagnosis Procedure"
[MR20DE (WITHOUT EURO-OBD)], or
(K9K).
9.
CHECK BCM INPUT (FAN ON) SIGNAL
Check FAN ON/OFF signal in “DATA MONITOR”. Refer to
HAC-140, "AIR CONDITIONER : CONSULT-III
Function (BCM - MANUAL AIR CONDITIONER)"
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> GO TO 10.
10.
CHECK CIRCUIT CONTINUITY BETWEEN HEATER CONTROL PANEL AND BCM
1.
Turn ignition switch OFF.
2.
Disconnect heater control panel connector and BCM harness connector.
(+)
(
−
)
Condition
Voltage
Heater control panel
—
Connector
Terminal
M54
7
Ground
A/C SW: ON
FAN SW: ON
Approx. 0
(+)
(
−
)
Condition
Voltage
ECM
—
Connector
Terminal
F8
41
Ground
A/C SW: ON
(Blower motor operates.)
Approx. 1.0 - 4.0
(+)
(
−
)
Condition
Voltage
ECM
—
Connector
Terminal
F68
78
Ground
A/C SW: ON
(Blower motor operates.)
Approx. 2.3
FAN SW ON
: FAN ON SIG ON
FAN SW OFF
: FAN ON SIG OFF
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