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    Ahbradfield's Avatar
    Ahbradfield Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 26, 2008, 01:01 PM
    2000 honda accord
    p1486 manufactur control auxiliary emissions controls on 2000 honda accord what does that mean what needs to be replaced
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #2

    Jul 27, 2008, 06:56 AM
    This can be a tricky code to diagnose if you don't have the right tools and equipment.

    DTC P0128 and/or P1486 can set occasionally just because the hood is opened. If your DTC during conditions other than that, read the following:

    Check the engine coolant level. Is the engine coolant level low?
    YES - Refill the engine coolant. If necessary, check the cooling system.
    NO - Go to step 2.

    Turn the ignition switch ON, and make sure the A/C is off.
    Check the radiator fan. Does the radiator fan keep running?
    YES - Check the radiator fan circuit with A/C model or without A/C model, radiator fan switch circuit, and the radiator fan switch. If the circuits and the switch are OK, substitute a known-good ECM/PCM and recheck. If the symptom/indication goes away, replace the original ECM/PCM.
    NO - Test the thermostat.
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