MBE 900 DDEC VI Troubleshooting – Section 5.3 Low Battery Voltage

Section 5.3
Low Battery Voltage

To determine if a weak battery is causing starting difficulty, measure the battery voltage; refer to OEM guidelines.‪

1. If voltage is between 10.5 - 14 volts, check the terminals for corrosion or damage; refer to "5.4 Corroded or Damaged Battery Terminals" .
2. If voltage is less than 10.5 volts, battery replacement is necessary; refer to "5.3.1 Battery Replacement" .

Section 5.3.1
Battery Replacement

Perform the following steps for battery repair:‪

1. Remove and replace the battery; refer to OEM guidelines.
2. Verify battery replacement; refer to "5.3.1.1 Test Engine with Replaced Battery" .

Section 5.3.1.1
Test Engine with Replaced Battery

To determine if the battery replacement resolved starting difficulty, attempt to start and run the engine.‪

PERSONAL INJURY ‪
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

1. If the engine starts and runs, no further troubleshooting is required. Shut down the engine.
2. If the engine fails to start and run, check the terminals; refer to "5.4 Corroded or Damaged Battery Terminals"