Komatsu · CA144
Coolant Temperature Sensor High Error
What this code means
Coolant temperature sensor feedback voltage is too high (high error). Action level L01.
Applies to: PC200-8/PC200-8M0 excavator (engine controller).
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Ask for the replacement part on WhatsAppSource: Komatsu PC200-8M0 Shop Manual (SEN06131-00) – Failure codes table. Cross-checked in two independent sources. Compiled 2026-10-30. No manufacturer affiliation.