Forget the other flash codes, this is the main one you need to diagnose an fix.
B1681
PATS Transceiver Module Signal is Not Received
PCM
GO to Pinpoint Test E .
Do you know how to do electrical testing using a Voltmeter?
E2 CHECK THE PATS TRANSCEIVER FOR VOLTAGE CIRCUIT 16 (RD/LG)
PATS Transceiver C2097
Measure the voltage between the PATS transceiver C2097 pin 2, circuit 16 (RD/LG), harness side and ground.
- Is the voltage greater than 10 volts?
Yes GO to E3 .
No REPAIR the supply circuit. CLEAR the DTCs. TEST the system for normal operation
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