1.CHECK CHARGED REFRIGERANT
Connect the recovery/recycling recharging equipment to the vehicle and perform the pressure inspection with the gauge.
Is there refrigerant?
YES
>>
GO TO 2
.
NO
>>
Check for refrigerant leakages detecting fluorescent leak detector. Refer to
Inspection
.
2.CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to
Diagnosis Description
.
Does it operate normally?
YES
>>
GO TO 6
.
NO
>>
GO TO 3
.
3.CHECK MAGNET CLUTCH
Turn the ignition switch OFF.
Disconnect the magnet clutch connector.
Directly apply the battery voltage to the magnet clutch. Check for operation visually and by sound.
Does it operate normally?
YES
>>
GO TO 4
.
NO
>>
Replace the compressor.
4.CHECK MAGNET CLUTCH CIRCUIT CONTINUITY
Turn the ignition switch OFF.
Disconnect IPDM E/R connector.
Check continuity between magnet clutch harness connector and IPDM E/R harness connector.
IPDM E/R
Magnet clutch
Continuity
Connector
Terminal
Connector
Terminal
E7
48
F35
1
Existed
Is the inspection result normal?
YES
>>
GO TO 5
.
NO
>>
Repair the harnesses and connectors.
5.CHECK FUSE
Check 10A fuse (No. 49, located in the IPDM E/R).
NOTE:
Refer to
Fuse, Connector and Terminal Arrangement
.
Is the inspection result normal?
YES
>>
Replace IPDM E/R.
NO
>>
Replace the fuse after repairing the applicable circuit.
6.CHECK SELF-DIAGNOSIS RESULT CHECK
With CONSULT-III
Perform the “SELF-DIAGNOSIS”.
Check if any DTC is detected in the self-diagnostic results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
DTC Logic
or
DTC Logic
.
Is any DTC displayed?
YES
>>
Perform the diagnosis that is applicable to the sensor and door motor. Refer to
DTC Index
.
NO
>>
GO TO 7
.
7.CHECK A/C AUTO AMP. OUTPUT SIGNAL
With CONSULT-III
Perform the “DATA MONITOR” of HVAC. Refer to
Reference Value
.
Check A/C switch signal and blower fan motor switch signal.
Monitor item
Condition
Status
COMP REQ SIG
A/C switch: OFF
Off
A/C switch: ON
On
FAN REQ SIG
Fan control dial: OFF
Off
Fan control dial: ON
On
Is the inspection result normal?
YES
>>
GO TO 8
.
NO
>>
Replace A/C auto amp.
8.CHECK REFRIGERANT PRESSURE SENSOR
Check the refrigerant pressure sensor. Refer to
Diagnosis Procedure (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
INSPECTION END
NO
>>
Repair or replace the malfunctioning parts.