Service Call 620-689
SC600 (Engine: Communication and Others)
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC620-01 D ADF Communication error
After ADF connection was recognized on startup, an error is detected.
(disconnection detection)
SC620-02 D ADF Communication Error
After ADF connection was recognized on startup, an error is detected.
(Retry out due to communication error)
• ADF connection fault
• ADF defection
• IPU board defection
• Noise contamination
• Check the ADF cable connection
• Replace the ADF
• Replace the IPU board
5. Troubleshooting
520