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HOMESERVICE MANUALSACURA2018MDX BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALFUEL SYSTEMFUEL AND EMISSIONS SYSTEM - TESTING AND TROUBLESHOOTING (EXCEPT HYBRID)CIRCUIT DIAGRAMFUEL AND EMISSIONS SYSTEMS CIRCUIT DIAGRAM (2016)
2018 Acura MDX Base

Fuel and Emissions Systems Circuit Diagram (2016)

2018 Acura MDX BaseSECTION Fuel and Emissions Systems Circuit Diagram (2016)

PCM Circuit Diagram 

GHH321418Courtesy of HONDA, U.S.A., INC.
GHH321419Courtesy of HONDA, U.S.A., INC.
GHH321420Courtesy of HONDA, U.S.A., INC.
GHH321421Courtesy of HONDA, U.S.A., INC.
GHH321422Courtesy of HONDA, U.S.A., INC.
GHH321423Courtesy of HONDA, U.S.A., INC.
GHH321424Courtesy of HONDA, U.S.A., INC.
GHH321425Courtesy of HONDA, U.S.A., INC.
GHH321426Courtesy of HONDA, U.S.A., INC.
GHH321427Courtesy of HONDA, U.S.A., INC.
GHH321428Courtesy of HONDA, U.S.A., INC.
GHH321429Courtesy of HONDA, U.S.A., INC.
GHH321430Courtesy of HONDA, U.S.A., INC.
GHH321431Courtesy of HONDA, U.S.A., INC.
GHH321432Courtesy of HONDA, U.S.A., INC.
GHH321433Courtesy of HONDA, U.S.A., INC.
GHH321434Courtesy of HONDA, U.S.A., INC.
GHH321435Courtesy of HONDA, U.S.A., INC.

Communication Systems Circuit Diagram (with CAN gateway) 

GHH321436Courtesy of HONDA, U.S.A., INC.
GHH321437Courtesy of HONDA, U.S.A., INC.
GHH321438Courtesy of HONDA, U.S.A., INC.
GHH321439Courtesy of HONDA, U.S.A., INC.
GHH321440Courtesy of HONDA, U.S.A., INC.

Communication Systems Circuit Diagram (without CAN gateway) 

GHH321441Courtesy of HONDA, U.S.A., INC.
GHH321442Courtesy of HONDA, U.S.A., INC.
GHH321443Courtesy of HONDA, U.S.A., INC.
GHH321444Courtesy of HONDA, U.S.A., INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.