98-03 FORD OEM RELAY CONSTANT CONTROL RELAY MODULE RCM F8CF-12B577-BC CCRM
98-03 FORD OEM RELAY CONSTANT CONTROL RELAY MODULE ( CCRM ) RCM F8CF-12B577-BC. ON THE LABLE. A BIG LETTER "Z". ALSO YOUR OLD ONE MUST HAVE. refurbished and tested!. Condition: Remanufactured , Seller Notes: “Before do the order do the simple test of your car!Test procedure:With digital voltmeter connected to the ground , test for battery voltage at terminals 21, 21 and 23.Diagnosis:If terminal 21 does not have battery voltage, check, repair or replace the fuse, pressure switches and wiring.If terminal 21 and 22 have battery voltage, and terminal 23 does not, replace the CCRM.If terminals 21 has battery voltage, and terminal 22 does not, then computer (ECU) has grounded the relay to prevent compressor operation.This occurs when computer sensors indicate an engine performance problem. The performance problem will have to be diagnosed and repaired for compressor operation to return.” , 。




