PATS Received Incorrect Key-Code From Ignition Key Transponder
Table of contents
B1601 Possible Causes
- Faulty Passive Anti-Theft System (PATS) key
- Faulty Powertrain Control Module (PCM)
How do I fix code B1601?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1601 code
The cost of diagnosing the B1601 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine no start situation
B1601 Description
During each vehicle start sequence, the transceiver reads the Passive Anti-Theft System (PATS) key identification code and circuit send the data to the Powertrain Control Module (PCM).