B1601 Code - PATS Received Incorrect Key-Code From Ignition Key Transponder
Quick Answer
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). Common causes include Faulty Passive Anti-Theft System (PATS) key, Faulty Powertrain Control Module (PCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1601 indicates PATS Received Incorrect Key-Code From Ignition Key Transponder.
- Common causes
- Common causes include Faulty Passive Anti-Theft System (PATS) key, Faulty Powertrain Control Module (PCM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1601 Description
What are the Possible Causes of the DTC B1601?
- Faulty Passive Anti-Theft System (PATS) key
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC B1601?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1601 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Need Help with the Code?
Get the B1601 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1601 Acura — Keyless Access ECU CPU Error
- B1601 Chrysler — Left Solar Sensor Circuit Low
- B1601 Dodge — Left Solar Sensor Circuit Low
- B1601 Ford — PATS Received Incorrect Key-Code From Ignition Key Transponder
- B1601 Honda — Keyless Access ECU CPU Error
- B1601 Jeep — Left Solar Sensor Circuit Low
- B1601 Lincoln — PATS Received Incorrect Key-Code From Ignition Key Transponder
- B1601 Mercury — PATS Received Incorrect Key-Code From Ignition Key Transponder
- B1601 RAM — Left Solar Sensor Circuit Low
Frequently Asked Questions about B1601 Code
1. What are common symptoms of OBDII code B1601 (PATS Received Incorrect Key-Code From Ignition Key Transponder)?
- Common symptoms include difficulty starting the vehicle, engine stalling, and the security light on the dashboard flashing.
2. What are the possible causes of OBDII code B1601?
- The code B1601 can be triggered by issues with the ignition key transponder, a faulty PATS (Passive Anti-Theft System) module, or a problem with the vehicle's immobilizer system.
3. How can I diagnose the cause of OBDII code B1601?
- Diagnosis typically involves checking the key transponder for proper communication, inspecting the PATS module for any faults, and performing a system reset to see if the code reappears.
4. Can I still drive my vehicle with OBDII code B1601 present?
- It is not recommended to drive the vehicle with code B1601 as it may lead to potential starting or stalling issues, and the vehicle's security system may be compromised.
5. How can I repair OBDII code B1601?
- Repairing code B1601 may involve reprogramming the key transponder, replacing the PATS module, or troubleshooting and repairing any faults in the immobilizer system.
6. Are there any DIY tips for addressing OBDII code B1601?
- DIY tips may include checking the key fob battery, ensuring the key transponder is clean and undamaged, and verifying that the key is programmed correctly to the vehicle.
7. Is OBDII code B1601 a serious issue?
- OBDII code B1601 should be addressed promptly as it can lead to potential starting and security system problems, affecting the drivability and security of the vehicle.
8. How much does it cost to repair OBDII code B1601?
- The cost of repairing OBDII code B1601 can vary depending on the underlying cause, but it may involve expenses for parts and labor at a repair shop or dealership.
9. Can OBDII code B1601 be fixed without professional help?
- While some DIY troubleshooting can be attempted, resolving OBDII code B1601 may require specialized tools and knowledge, making professional assistance advisable.
10. How can I prevent OBDII code B1601 from occurring again?
- To prevent the recurrence of OBDII code B1601, it is important to maintain the key transponder, ensure proper key programming, and address any issues with the vehicle's security system promptly.
Discuss the causes and fixes for B1601 OBDII Code
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I have a ford explorer 2005. somebody can help me how to fix this code B1601
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You have a problem with the ignition key. Try starting the engine with another key.
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