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Home >> Acura >> 2014 >> MDX SH-AWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Testing & Troubleshooting / Gen Info (Except Hybrid) >> Symptom Troubleshooting >> Battery Symptom Troubleshooting - Low or Dead Battery (2014 2015)

Battery Symptom Troubleshooting - Low or Dead Battery (2014 2015)

Low or Dead Battery 

NOTE: 

Indication Example 

- Latest History -
Duration: 72 * hours
Data Value
IG-OFF -439. 65 mA
1 hour later -19. 54 mA
2 hours later -29. 31 mA
72 * hours later -19. 54 mA

*: The value that just before the vehicle ignition is in ON mode is shown. The value varies depending on when the vehicle ignition is in ON mode.

  1. PGM-FI system check

    - 1. Check for PGM-FI DTCs.

    DTC Description Confirmed DTC Pending DTC
    P0562 CHARGING SYSTEM LOW VOLTAGE    
    P065A ACG NO CHARGING MALFUNCTION    
    P16BB ALTERNATOR B TERMINAL CIRCUIT LOW VOLTAGE    

    Are DTCs P0562, P065A, and/or P16BB indicated?

    YES 

    Go to indicated DTC troubleshooting.

    NO 

    Go to step 2.

  2. Parasitic draw check

    - 1. Check all the battery consumption current history with the HDS.

    Are all the values of 1 hour later -48. 85 mA or less?

    YES 

    Check the battery.

    NO 

    Go to step 3.

  3. Problem verification

    - 1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Get out of the vehicle, and close all doors and trunk securely.

    - 3. Lock the doors with the keyless remote.

    - 4. Make sure the individual map lights are turned off and the security alarm system is armed.

    - 5. Wait 70 minutes or more.

    - 6. Turn the vehicle to the ON mode.

    - 7. Check the latest battery consumption current history with the HDS.

    Is the value of 1 hour later -48. 85 mA or less?

    1. YES 

      Intermittent failure, the system is OK at this time. The possible cause could be that an incorrect parasitic draw value was recorded:

      • A switch was not turned off.
      • The vehicle's accessories were operated for a long time with the vehicle ignition was in the ACCESSORY mode.

      NO 

      Go to the parasitic draw check - Refer to: Parasitic Draw Check (2014 2015),  or Parasitic Draw Check (2016 2017 2018 2019 2020) .