B1600high severityBody
PATS Ignition Key Transponder Signal Not Received
on 2011 Ford F-150 3.5L V6 EcoBoost · 4WD
What this code means
The anti-theft system did not receive a signal from the key transponder. The engine will not start without a valid key signal.
Symptoms
- Engine cranks but no start
- Security light flashing
- Key not detected
Common causes
- Faulty key transponder
- Damaged antenna ring
- Wiring fault to transceiver
- Non-programmed key used
Diagnostic steps
- Scan for B1600
- Test with known good key
- Inspect antenna ring and wiring
- Reprogram or replace key as needed
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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
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open