2011 Acura MDXFACTORY OEM SERVICE PROCEDURE

Security Answer Back*

The relay control module controls the exterior lights and the horn based on inputs from the answer back signals.

Β  Input Output
Relay control module Β  Taillight relay circuit
Horn relay circuit
B-CAN Answer back signals Β 

*: This system can be customized using the multi-information display (MID) to suit the customer's needs. For more information about customizing options, refer to the Owner's Manual.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

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

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