Komatsu Fault Code

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P0562

Controller Comm. Lost

System

Electrical

Symptom

Controller Comm. Lost

Diagnosis & fix steps

LOGIC: System Voltage Low. ACTION: Inspect the main battery relay (battery disconnect) for pitted contacts.

Red Seal field insights

Specs: Voltage at Controller must be >22V. RED SEAL FIX: Low voltage "browns out" the CAN-bus.

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