Detailed Flow

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.

GO TO 2 .
SYMPTOM CHECK
Check the symptom from the customer's information. Check that any symptom occurs other than the interviewed symptom.

Insufficient cooling/heating

GO TO 3 .

Refrigerant leakage

GO TO 6 .

NO

GO TO 7 .
CONTROL SYSTEM DIAGNOSIS
Perform the system diagnosis for the A/C control system. Refer to Work Flow (with auto A/C) or Work Flow (with manual A/C).

Is A/C control system normal?

YES

GO TO 4 .

NO

GO TO 8 .
PERFORMANCE TEST
Perform the performance test. Check the operation of each part. Refer to Inspection .

GO TO 5 .
TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE
Diagnose using a manifold gauge whenever system's high and/or low side pressure(s) is/are unusual. Specify the malfunctioning part. Refer to Trouble Diagnoses for Abnormal Pressure .

Low refrigerant charge

GO TO 6 .

Except above

GO TO 8 .
CHECK REFRIGERANT FOR LEAKAGES
Check refrigerant for leakages. Specify the malfunctioning part. Refer to Leak Test .

GO TO 8 .
TROUBLE DIAGNOSIS FOR NOISE
Perform trouble diagnosis for noise. Specify the malfunctioning part. Refer to Symptom Table .

GO TO 8 .
MALFUNCTIONING PART REPAIR
Repair or replace the malfunctioning part.

GO TO 9 .
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.

Does it operate normally?

YES

Inspection End.

NO

GO TO 2 .