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Honda
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1999
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Civic HX Coupe L4-1590cc 1.6L SOHC (VTEC-E) MFI
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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A/C Signal
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Testing and Inspection
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Except Manual Transmission
Except Manual Transmission
This signals the
ECM/PCM
when there is a demand for cooling from the air conditioning system.
