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124 Spider Classica, Automatic Trans
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Radio Frequency Module (RF Hub)
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DTC Troubleshooting
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U0121-87 Lost Communication With Anti-Lock Brake System-Abs-Control Module-Missing Message
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When Monitored And Set Conditions
When Monitored And Set Conditions
Set Conditions:
At least 10 seconds.
Possible Causes
FAULT ON HS-CAN LINE BETWEEN ABS (ANTI LOCK BRAKE) CONTROL UNIT AND RFH (RADIO FREQUENCY HUB) CONTROL UNIT