TIN-20-55B-001

* * TECHNICAL INFORMATION NOTICE * *
DATE:
September 22, 2020
TO:
Mitsubishi Motors US Service and Parts Managers
RE:
Warranty Claim Submittal for Vehicles with Low Refrigerant
TIN No.:
TIN-20-55B-001
AFFECTED VEHICLES: All Mirage and Mirage G4 Vehicles
PURPOSE:
Due to the increased occurrence of Mirage/Mirage G4 vehicles exhibiting faulty air
conditioning systems caused by low/high refrigerant levels; MMNA would like to remind all
Dealer Service Personnel of the correct procedures when submitting warranty claims of
this distinction.
When diagnosing/repairing these vehicles, please complete the following actions and
include measurements within the warranty claim:
1. Hook up AC gauges and record High and Low pressures *Note: DO NOT engage the
AC system*
2. Record ambient/interior temperature from data list in MUT-III SE
3. Inspect and record data list item for AC pressure sensor
4. Evacuate the AC and record the amount of refrigerant recovered
5. Recharge the AC system, install leak detecting dye
6. Perform AC Performance test per applicable service manual and record the results
(service manual procedure pictured below)
Reference the chart below which shows the relationship between temperature and
pressure with respect to the type of refrigerant that is being used. *Note: R1234YF is not
included in this chart*
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