B2139high severityBody
PATS Ignition Key Transceiver Signal Not Received
on 2020 Lincoln Nautilus 2.7L Twin-Turbo V6 · AWD
What this code means
The anti-theft module is not receiving a signal from the ignition key transceiver antenna ring. No OBD P-code equivalent exists for this body code.
Symptoms
- No-start condition
- Theft light flashing
- Key not recognized
Common causes
- Faulty transceiver ring around ignition
- Damaged transceiver wiring or connector
- Failed key transponder
- PATS module fault
Diagnostic steps
- Verify theft light behavior at key-on
- Check transceiver ring connector and wiring
- Test with a known-good key
- Replace transceiver ring or reprogram keys
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment