MDX V6-3471cc 3.5L (2002)
4. With the driver's multiplex control unit still disconnected, make these input tests at the connector and driver's under-dash fuse/relay box socket.
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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, go to step 5.
5. Reconnect the driver's multiplex control unit to the driver's under-dash fuse/relay box, and perform the following input tests at the appropriate
connectors on the driver's under-dash fuse/relay box.
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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 driver's multiplex control unit must be faulty; replace it.