Civic EX Sedan L4-1668cc 1.7L SOHC (VTEC) MFI (2001)
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6. Disconnect the M, P, K, and J connectors from the under-dash fuse/relay box, and make these input tests at the connectors.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, the multiplex control unit must be faulty. Replace the under-dash fuse/relay box assembly.
