What does OBD2 code P0600 mean?+
P0600 stands for Serial Communication Link Circuit. The ECM has detected a fault on the serial data communication link (typically the internal ECM communication bus) used to share data between internal ECM processors or with other modules.
What causes code P0600?+
Failed ECM; Wiring fault on CAN bus; Damaged communication harness; Corroded ground connection
How do I fix code P0600?+
Check battery and grounds; Inspect CAN bus wiring; Test ECM power and ground; Replace ECM if confirmed failed
How much does it cost to fix P0600?+
Estimated repair cost for P0600 is $300–$1500.
Is P0600 DIY-friendly?+
P0600 typically requires professional equipment and a qualified mechanic.
