SC6xx: Communication
D0CA/D0C9/D0C8/D0CB 6-70 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC682-** D TD Sensor Communication Error
TD Sensors (S14-S17) cannot be recovered after retrying three times for an ID
Chip communication error.
• Corrupted ID data
• Disconnected ID Chip (PCB3-PCB6)
• No ID Chip (PCB3-PCB6)
• Noise
1. Remove the PCDU and check the connector condition.
2. Re-insert the harness (BiCU side) between the BiCU (PCB1) and the TD
Sensors (S14-S17).
3. Replace the PCDU (if the TD Sensors (S14-S17) work incorrectly)
4. Replace the harness between the BiCU (PCB1) and the TD Sensors
(S14-S17).
5. Replace the BiCU (PCB1).
Check the SC’s branch number (-** part) and do the above steps for the
corresponding color.
• If the last digit of the SC’s branch number (-**) is:
1 or 6, then do the above steps for K
2 or 7, then do the above steps for M
3 or 8, then do the above steps for C
4 or 9, then do the above steps for Y
What to do if a connection error has occurred for all colors
1. Reconnect the harness between the BiCU (PCB1) and TD sensor
(S14-S17).
2. Replace the harness between the BiCU (PCB1) and TD sensor (S14-S17)
3. Replace the BiCU (PCB1) and TD sensor (S14-S17) at the same time.
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