Looks like one of the oxygen sensors may have gone out.
You might want to to take a look at all the wiring to the sensors ... depending on how/where the vehicle is parked ... little critters can chew on the cables resulting in the check engine light coming on ...
Good luck on your troubleshooting!
Helpful?
SOURCE: 2006 Acura MDX bluetooth stopped
Bluetooths have batteries, Rechargeable. If it won't hold a charge replace the batt.
SOURCE: Need to reset the code my Acura MDX navigation
check the side of the glove box. my TL has it on the outside side panel as you look from the driver side. my honda prelude had the code there as well. hope this helps
SOURCE: changed battery of my 2002 acura mdx, need codes for radio nav
You need to get the serial number off the sticker attached to the radio and nav. It will require pulling apart your dash. Call an Acura dealership with that serial number and they should be able to provide you the code. Or you can take it directly to the dealer but you will be charged labor.
SOURCE: acura mdx 2001 ingine codes
All these codes indicate you have a misfire on cylinder number 5.
P1399/P0300 - Random/Multiple Cylinder Misfire Detected
P0305 - Cylinder #5 Misfire Detected
Causes:
- Improper spark plug at cylinder #5
- Insufficient compression at cylinder #5
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #5
- Fuel injector #5 may be faulty
- Intake air leak at cylinder head
Solutions:
- Perform Injector Service
- Replace Spark Plug #5
- Replace Injector #5
- Replace Ignition Coil #5
SOURCE: my acura mdx gps screen starts up with password code
if you have your paperwork, booklet, it cane with an antitheft id card. if not, you need the serial numbers from the radio and/or nav system (which were also on the card with the codes)
go to https://radio-navicode.acura.com/
fill out info, get your codes
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