P0513 on 2015-2021 Chrysler 300: Invalid Key Causes and Fixes

What's Unique About the 2015-2021 Chrysler 300

For this generation of Chrysler 300, the P0513 code is closely tied to the Wireless Ignition Node (WIN) or Radio Frequency Hub (RF Hub), which is the module responsible for communicating with the key fob. Chrysler has issued Technical Service Bulletins (TSBs) indicating this code can be set inadvertently during a remote start attempt if a key fob button is pressed simultaneously against the Keyless Ignition Node (KIN). This specific glitch was addressed in TSB #18-035-15 REV-B for certain 2015 models. The code can also appear after a PCM has been replaced or reprogrammed if the keys were not properly relearned to the module (TSB #S2208000073), making it a critical code to watch for after major electronic service. A sudden loss of battery voltage can also corrupt the security data between modules, triggering a P0513 code even with a valid key.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Engine cranks but will not start.
• Engine starts and then immediately shuts off.
• Check Engine Light is on.
• Flashing red security light on the instrument panel.
• Remote start feature does not work.
• Message on the dash such as 'Invalid Key' or 'Key Not Detected'.
• Key fob gets stuck in the WIN module (on applicable models).
• Vehicle shuts off when hitting bumps in the road (indicative of a failing WIN module).

Most Likely Causes

1. Dead or Weak Key Fob Battery 🔴 High Probability Key fobs are powered by small batteries (typically CR2032) that have a finite lifespan of 2-4 years. This is the most frequent and simplest point of failure for any vehicle with a keyless system.
   How to confirm: Try using your spare key fob. If the vehicle starts and runs normally with the spare, the issue is with the primary key fob, most likely its battery.
   Typical fix: Replace the battery inside the key fob.
   Est. part cost: $5-$15
2. Faulty Key Fob 🟡 Medium Probability The internal transponder chip or electronics within the key fob can fail from being dropped, water damage, or age. The chip is essential for the security handshake.
   How to confirm: If replacing the battery does not work and the spare key does, the original key fob is defective. A locksmith or dealer can test the fob's signal output.
   Typical fix: The key fob must be replaced and programmed to the vehicle by a dealer or a qualified automotive locksmith.
   Est. part cost: $150-$400
3. Faulty Wireless Ignition Node (WIN) / RF Hub 🟡 Medium Probability The WIN/RF Hub is the receiver in the car that reads the key's signal. These modules can fail internally, causing them to no longer recognize valid keys. This is a known issue on many Chrysler products from this era, leading to symptoms like the key getting stuck or the car shutting off over bumps.
   How to confirm: If neither the primary nor the spare key will start the vehicle (and their batteries are good), the problem is likely with the car's receiver. This requires a professional scan tool to check for communication errors with the WIN/RF Hub.
   Typical fix: The WIN/RF Hub module must be replaced and programmed to the vehicle, along with all existing keys. Some specialists offer a repair service for the original module.
   Est. part cost: $250-$800
4. PCM and SKIM Data Mismatch ⚪ Low Probability As noted in TSB #S2208000073, this occurs specifically after the Powertrain Control Module (PCM) has been replaced or its software has been updated ('flashed') without correctly reprogramming the security information. A significant voltage drop, such as from a dead battery, can also corrupt this data.
   How to confirm: This cause should be suspected if the P0513 code appears immediately after a PCM replacement, software update, or a dead battery event.
   Typical fix: The vehicle must be returned to the service center to have the keys properly programmed to the PCM. In cases of data corruption, the PCM may need to be 'virginized' and re-initialized.
   Est. part cost: $0 (should be covered by the original repairer)

Rare But Worth Checking

• Wiring Harness Issue: A poor connection, corrosion, or damaged wire between the WIN/RF Hub and the PCM can interrupt the security signal, causing the P0513 code. This is uncommon but should be checked if modules and keys are known to be good.
• Aftermarket Remote Starter/Alarm Interference: Improperly installed aftermarket electronic accessories, especially remote starters or alarms, can interfere with the factory immobilizer system's communication, leading to a P0513 code.

Diagnosis Steps

1. Scan the vehicle for any other stored trouble codes, especially in the BCM and RFH modules, not just the PCM.
2. Attempt to start the vehicle with a known-good spare key. If it starts, the problem is isolated to the first key fob.
3. If the spare key works, replace the battery (typically a CR2032) in the malfunctioning key fob. This is the most common fix.
4. If a new battery doesn't solve the issue, the key fob itself is likely faulty and needs replacement and programming.
5. If neither key works, inspect all related fuses for the immobilizer system and BCM.
6. If fuses are good, the problem is likely with the vehicle's security system (WIN/RF Hub or PCM).
7. Visually inspect the wiring and connectors at the RF Hub/WIN module (often located in the dashboard or steering column area) for any obvious damage or corrosion.
8. Use an advanced diagnostic scan tool (like wiTECH) to check the live data from the RF Hub/WIN module and confirm it is communicating with the PCM and BCM.
9. If the vehicle recently had its PCM replaced, flashed, or the battery died, confirm with the repair shop that the key relearn procedure was completed per TSB #S2208000073.
10. If the RF Hub/WIN module is determined to be faulty, it will need to be replaced and programmed by a professional, or sent out for repair.

Parts You'll Likely Need

• Key Fob Battery (OEM #CR2032) — This is the most common failure point and the easiest and cheapest part to replace.
  Trusted brands: Energizer, Duracell
  OEM price range: $5-$15
  Aftermarket price range: $2-$10
• Key Fob (FOBIK Remote) (OEM #68234959AA (example, verify by VIN)) — If the internal transponder chip fails, the entire key fob must be replaced and programmed.
  Trusted brands: Mopar (OEM)
  OEM price range: $200-$400
  Aftermarket price range: $75-$200
• Wireless Ignition Node (WIN) / RF Hub (OEM #68214881, 68105738, 68245483AE (example part numbers, verify by VIN)) — This module is the vehicle's receiver for the key signal. It's a known failure point on Chrysler vehicles that will prevent any key from being recognized.
  Trusted brands: Mopar (OEM), Dorman
  OEM price range: $400-$800
  Aftermarket price range: $250-$500

Technical Service Bulletins (TSBs) & Recalls

• S2208000073: No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
• 18-035-15 REV-B: P0513 - Invalid Skim Key. This code is set during remote starting the vehicle and nearly simultaneously pressing the Key Fob button against the Keyless Ignition Node (KIN).

Platform-Specific Known Issues

• A known software glitch can trigger P0513 during a remote start attempt if a key fob button is pressed against the Keyless Go start button at nearly the same time, as documented in TSB #18-035-15 REV-B.
• The code is a known consequence of replacing or flashing the PCM without subsequently reprogramming the vehicle's keys to it, as per TSB #S2208000073.
• Sudden battery death or low voltage events can corrupt the security data handshake between the PCM, BCM, and RF Hub, causing P0513 even with a good key and modules. This may require a dealer-level re-sync procedure.

Mechanic-Grade Diagnostic Values

• Battery Voltage at RF Hub Module — expected: 10.0 - 16.0 volts. Failure: Voltage outside this range can cause communication errors and trigger DTCs.
• CAN Bus Voltage at Star Connector — expected: Approximately 2.5 volts on each pin. Failure: A reading of near zero volts on a pin indicates a module on that circuit is pulling the network down.

Hidden / Shadow Codes Worth Checking

• B1A28-00: ECM Mismatch with SKIM. This code indicates that the security information (like the VIN) stored in the Engine Control Module (ECM) does not match the information in the Sentry Key Immobilizer Module (SKIM/RF Hub). (see via This code is typically found in the Radio Frequency Hub (RFH) module memory, not the PCM, and requires a scan tool that can read module-specific DTCs, like wiTECH.)
• U-series codes (e.g., U0100): Lost Communication codes. If the RF Hub fails completely, other modules on the network will post U-codes indicating they can no longer communicate with the RF Hub. This can sometimes help pinpoint the RF Hub as the root cause, rather than a key or programming issue. (see via An advanced scan tool capable of performing a full vehicle network scan is required to see codes from all modules.)

Scan Tool Commands That Help

• wiTECH or AlfaOBD: RF-HUB REPLACE — This routine is mandatory after physically installing a new RF Hub. It programs the vehicle's VIN and security information into the new module. It requires the vehicle's 4-digit PIN to execute.
• wiTECH or AlfaOBD: Program Ignition FOBIKs — This function is used to program new or existing keys to the RF Hub. It's required after an RF Hub replacement or when adding new keys.
• wiTECH: Transfer Secret Key Data — When replacing only the PCM (and keeping the original SKIM/RF Hub), this function must be used to move the vehicle's unique security key data from the existing SKIM/RF Hub to the new PCM. Failure to do this will result in a P0513 and a no-start condition.

Wiring & Ground Locations

• RF Hub Module — On the rear deck shelf, under the rear window.. This is the central control unit for the immobilizer system. All key signals are received and validated here. A failure of this module is a common cause of P0513.
• Main Body Ground (Passenger Side) — Under the hood, on the passenger side shock tower, there is a primary grounding stud for various electronic components.. A loose or corroded ground at this location can cause a variety of electrical issues, including intermittent communication problems with security modules like the RF Hub, potentially leading to a P0513 code.
• RF Hub Connector C2 — This is one of the main connectors plugging into the RF Hub module itself.. This connector carries the signals for the passive entry antennas. Corrosion or pushed-out pins in this specific connector can prevent the RF Hub from detecting the key fob, even if the hub and key are functional.

Real Owner Repair Stories

• RepairPal Forum User (2006 Chrysler 300C 3.5L (Note: Older model but describes identical SKIM failure pattern)) — Key inserted, no 'buzz' sound of steering lock disengaging. Engine cranks but shuts off after 2-3 seconds. After 6 start attempts, the car went into lockdown and required a tow.
  ❌ Tried (didn't work) Initially, the user suspected only the key fob battery or the key itself.
  ✅ What actually fixed it The final repair required replacing the SKIM module, the ignition lock, and two new key fobs, followed by reprogramming at the dealer. The user notes the problem was a combination of a bad SKIM module AND faulty keys.

OEM Part Supersession History

• 68155691AD, 68155691AE, 68155691AF, 68155691AG, 68155691AH, 68155691AI → 68321698AA — Standard part evolution for bug fixes and hardware improvements.
  Heads up: While later part numbers supersede older ones, it is critical to verify the correct part number by VIN. Some vendors sell pre-programmed RF Hubs to avoid programming issues.