Symptom Troubleshooting

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

'10-12 MODELS

MID Indication	Possible cause	Diagnostic procedure	Notes
	Faulty connector Faulty wire harness Faulty battery sensor	Inspect the connector to be sure it is making good contact. Check for an open or high resistance in the wire. Disconnect the battery sensor from the battery negative terminal and reconnect it. Check for DTCs. Replace the battery sensor.	The battery sensor is initialized and recalibrated automatically after reconnecting. To do this quickly, turn off all electrical loads, lock all doors with the transmitter, and remove the No. 9 (7.5 A) fuse from the main under-hood fuse box. Then disconnect the battery sensor 2P connector, wait 5 seconds, reconnect it, and reinstall the fuse. The battery sensor will be initialized and recalibrated within 10 minutes.

'10-11 MODELS

MID Indication	Possible cause	Diagnostic procedure	Notes
	Faulty battery	Test the battery (see BATTERY TEST ).
	Faulty alternator Low battery voltage Low battery charge	Troubleshoot the charging system. Check for excessive parasitic draw with the ignition switch in LOCK (0), and the key removed.	Long-term parking, frequent short trips, aftermarket accessories, or using vehicle electrical devices without the engine running for long periods may cause this condition.