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FLA -454 FUEL SYSTEM 3 5 2 4 EGRF912A 5) Is the measured resistance within specification ? YES ▶ Go to "Check Alternator" procedure. NO ▶ Substitute with a known - good Main relay and check for proper operation. If the problem is corrected, replace 2. Check Alternator 1) Key "OFF". 2) Check the tension of the belt. 3) Check Battery terminal and Alternator B+ terminal for looseness, corrosion or damage. 4) Engine "ON". 5) Operate electric equipments (Head lamp, Hot wire, etc). 6) accelerate engine to 2000 RPM and measure the battery voltage. Specification : Approx. 12.5V ~ 14.5V 7) Is the measured voltage within specification ? YES ▶ Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM NO ▶ Substitute with a known - good Alternator and check for proper operation. If the problem is corrected, replace NOTE There is a memory reset function on scantool that can erase optional parts automatically detected and memorized |