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ProMaster City Base
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Towing Systems
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(Trailer Tow Module - Electrical Diagnostics)
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DTC Troubleshooting
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U1700-87 - BCM Body Computer Module - Missing Message
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Set Condition
Set Condition
This DTC sets when the Trailer Tow Module (TTM) detects Controller Area Network (CAN) Bus messages are not received from the Body Control Module (BCM) for approximately two to five seconds.