Case IH 12677: Low voltage - disable system functions

The system has detected a voltage drop below the required operating threshold, prompting the machine's software to disable certain system functions to protect the electronics or prevent erratic operation.

• Case IH

1. 1

   Test the battery voltage (both resting and under load)

2. 2

   Check the alternator output to ensure it is properly charging the system

3. 3

   Inspect the wiring harness, specifically looking for high resistance on voltage supply lines, missing ignition grounds, or open circuits

1. 1

   Trace low-voltage condition

   Trace the low-voltage condition to its source (e.g., repairing damaged wiring, cleaning corroded ground terminals, or replacing a failing battery/alternator) to restore proper voltage and re-enable system functions.