ENGINE COLANT HEATER TEST PROCEDURES
82, for the engine coolant heater.
85-2. TEST SET-UP. Instructions for setup of test equipment and parts to be
tested are given before the test procedures. Illustrations are used, when needed, to
show you how to hook up the test equipment to the part to be tested.
85-3. TEST PROCEDURE. Detailed step-by-step instructions, in flow chart form,
are given for each test. The procedure calls out the type of test and the condition
of the truck system for each part of testing. The step-by-step test will lead you to
the bad component or to a fault symptom within a related system. Reference is made
to the fault symptom index, chapter 6, if the test shows a fault in another system.