B1681 MERCURY - PATS Transceiver Module Signal Is Not Received
- Faulty Passive Anti-Theft System (PATS) transceiver
- Faulty Powertrain Control Module (PCM)
- Faulty Passive Anti-Theft System (PATS) key
- Engine Light ON (or Service Engine Soon Warning Light)
B1681 Mercury DescriptionDuring each vehicle start sequence, the transceiver module reads the Passive Anti-Theft System (PATS) key identification code and sends the data to the Powertrain Control Module (PCM).
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