This standard specifies the and the corresponding test procedures for electrical and electronic systems and components installed in road vehicles. It was established by the Society of Automotive Engineers of Japan (JSAE) to ensure the durability and reliability of vehicle electronics under various weather-related stresses. Key Test Categories
: Tests components against rapid or specified temperature changes to ensure durability. jaso d0144 pdf
Contact resistance limits and current-carrying capacity under load. This standard specifies the and the corresponding test
You can find full technical details or purchase the official PDF through the following industry portals: JSAE (Society of Automotive Engineers of Japan) official publisher of JASO standards : Often hosts user-uploaded summaries or lists of JASO standards for reference. ANSI Webstore : A common source for purchasing international automotive standards specific test procedure (like temperature cycling) or trying to find compatibility for a certain part? Reason for withdrawal of JASO Standard Reason for withdrawal of JASO Standard The PDF
The PDF specifies that a temperature-compensating refractometer must be used. It details how to calibrate the device with distilled water and how to correct the reading based on the coolant’s base glycol type (Ethylene Glycol vs. Propylene Glycol). The standard warns against using floating ball hydrometers for used coolant, as they are skewed by dissolved solids.
This standard is functionally equivalent to the international ISO 16750-4