Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Performance Test




PERFORMANCE TEST

Inspection


INSPECTION PROCEDURE

1.Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.
2.Start the engine, and set to the following condition.
Test condition





3.Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
4.Check that test results of "recirculating-to-discharge air temperature" and "ambient air temperature-to operating pressure" are within the specified value.
5.When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Symptom Table.

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE







AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE