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P0513 on 2007-2017 Jeep Patriot: Incorrect Immobilizer Key Causes and Fixes

On a 2007-2017 Jeep Patriot, code P0513 almost always means the vehicle's anti-theft system doesn't recognize the key. The most common cause is a faulty Wireless Control Module (WCM), followed by a dead key fob battery. A less common but significant cause is data corruption between modules after a battery disconnect or jump-start. Replacing the WCM requires dealer programming and can cost between $400 and $700.

20 minutes to read 2007-2017 Jeep Patriot

Most Likely Cause

Faulty Wireless Control Module (WCM)

Difficulty

1/5

Est. Time

1.5 hrs

DIY Doable?

🔧 Shop

Shop Labor

$100 – $700

Parts Price

$5 – $250

🚫 Do not drive — The vehicle's immobilizer system is active and will prevent the engine from starting or will cause it to stall within two seconds, leaving you stranded.

Key Takeaways

P0513 on a Jeep Patriot means your car thinks it's being stolen and has shut down the engine.
Before panicking, try your spare key and replace the battery (CR2032) in your primary key fob.
The most probable cause on this specific vehicle is a failed Wireless Control Module (WCM), which is not a simple DIY fix as it requires dealer programming.
Do not replace the starter or ignition switch; this is an electronic security issue, not a mechanical one.
If the code appeared after changing the car battery or servicing the computer, it needs to be re-synced by a professional with the right scan tool.

The trouble code P0513 stands for "Incorrect Immobilizer Key." This means the Powertrain Control Module (PCM) did not receive a valid security code from the transponder chip embedded in your key. The Jeep Patriot uses a Sentry Key Immobilizer System (SKIS), which is managed by the Wireless Control Module (WCM), sometimes called the SKREEM (Sentry Key Remote Entry Module). If the electronic handshake between the key and the WCM fails, the system assumes a theft attempt and disables the engine, causing a no-start or a start-and-stall condition within two seconds.

What's Unique About the 2007-2017 Jeep Patriot

The Jeep Patriot (MK platform) and its siblings, the Jeep Compass and Dodge Caliber, are particularly known for failures of the Wireless Control Module (WCM), also called the SKREEM module. While a dead key battery can trigger this code on any car, many Patriot owners discover the WCM itself has failed, causing a persistent no-start condition. Unlike a simple part swap, replacing the WCM is complex; it's located in the steering column 🎬 Watch this video on how to remove the module. and must be programmed to the vehicle's VIN and existing keys using specialized dealer tools like wiTECH. Furthermore, these vehicles are sensitive to low voltage events; a dying battery or a jump-start can corrupt the security data between the PCM and WCM, triggering P0513 even with no faulty parts.

Professional service recommended: Fixing this code often involves replacing and programming the Wireless Control Module (WCM), which requires dealer-level diagnostic tools and a vehicle-specific security PIN. Diagnosing data corruption issues between modules also requires advanced scan tools.

Symptoms You May Notice

Engine cranks but will not start
Engine starts and immediately stalls (within 2 seconds)
Flashing red dot (security light) on the instrument cluster
Check Engine Light is illuminated
Remote keyless entry (door locks) may not work
After multiple failed start attempts, the engine may not crank at all

⚠️ Don't Waste Money on the Wrong Fix

Replacing the ignition switch. The ignition switch is a mechanical part and is rarely the cause of this electronic security code.
Replacing the starter. If the engine cranks but doesn't start, the starter is working correctly. The immobilizer is preventing the engine from running, not from cranking.
Replacing the main vehicle battery without addressing the underlying data corruption. If the code was triggered by a low voltage event, simply replacing the battery may not fix it; a security relearn procedure is often still necessary.

Most Likely Causes

Faulty Wireless Control Module (WCM) 🔴 High Probability The WCM/SKREEM on this platform is a well-documented common failure point that can electronically lock up or fail completely. The failure can be intermittent, sometimes related to temperature changes.
How to confirm: If a known-good spare key and a new key fob battery do not resolve the issue, the WCM is the most likely culprit. A professional diagnosis with a scan tool that can read security system data (like a wiTECH) is needed to confirm a faulty module by checking for communication errors (e.g., codes like B1A25, B1A28). 🎬 Watch a diagnostic walkthrough of these intermittent codes in action.
Typical fix: Replace the WCM and program the new module to the vehicle and its keys. This must be done by a dealer or a properly equipped locksmith.
Est. part cost: $150-$250
Dead or Weak Key Fob Battery 🟡 Medium Probability → Shop Vehicle Battery
How to confirm: Try starting the vehicle with your spare key. If it starts, the problem is with the primary key. Replace the CR2032 battery in the non-working key fob.
Typical fix: Replace the CR2032 battery inside the key fob.
Est. part cost: $1-$10
Faulty Key Fob Transponder ⚪ Low Probability → Shop Keyless Entry Transmitter
How to confirm: If the vehicle starts with a spare key but not the primary key, even after replacing the battery, the transponder chip in the primary key has likely failed.
Typical fix: The key must be replaced and the new key programmed to the vehicle by a dealer or locksmith.
Est. part cost: $100-$250
Loss of Security Programming ⚪ Low Probability As documented in FCA TSB S2208000073, replacing the main vehicle battery, jump-starting the vehicle, or replacing/reflashing the PCM can corrupt security data in the EEPROM due to voltage drops, causing a P0513 code.
How to confirm: This is the likely cause if the code appeared immediately after the vehicle's main battery was disconnected or replaced, or after service was performed on the engine computer. Some owners have temporarily resolved this by disconnecting the battery terminals and touching them together for 10-30 seconds to reset the modules.
Typical fix: A "Proxy Configuration Alignment" or "PCM Replaced" routine must be performed with a dealer-level scan tool to re-synchronize the vehicle's security modules.
Est. part cost: $0 (labor only)

Rare But Worth Checking

Faulty Aftermarket Remote Starter: If the vehicle has an aftermarket remote start, an improper installation or a failing bypass module can interfere with the factory immobilizer system and cause a P0513 code.
Poor Connection at WCM Antenna Ring: The antenna ring that reads the key is part of the WCM. Corrosion or a loose connection on its contact pins can cause intermittent reading failures, sometimes triggered by heat.

🎬 See how to fix the WCM antenna loop connection.

Diagnosis Steps

Verify P0513 is the active code using an OBD-II scanner. Note any other security-related codes like B1A25.
Check for a flashing red security light on the dashboard. This confirms an active immobilizer issue.
Attempt to start the vehicle with a known-good spare key. If it starts, the issue is isolated to the first key.
If the spare key also fails, replace the CR2032 battery in one of the key fobs as a low-cost first step.
If the code appeared after a battery change or jump-start, attempt a hard reset by disconnecting both battery terminals and holding them together for 30 seconds. Reconnect and try starting again.
If the code persists with all keys and new batteries, the issue is likely with the vehicle itself.
Visually inspect the wiring harness around the steering column for any obvious damage or signs of an aftermarket remote starter installation.
At this point, a professional diagnosis is required. A technician will use a scan tool (like wiTECH) to check communication with the Wireless Control Module (WCM) and determine if it has failed, lost its programming, or if a Proxy Alignment is needed.

Parts You'll Likely Need

Wireless Control Module (WCM) (OEM #5026218AT (for 2015-2016, verify by VIN)) — This module is the most common point of failure on the Jeep Patriot for a P0513 code. It reads the key's security chip and is prone to electronic lockup. Also referred to as Wireless Ignition Node (WIN) or Radio Frequency Hub (RFH) in the Mopar parts system.
Trusted brands: Mopar
OEM price range: $150-$250
Aftermarket price range: $100-$200
Transponder Key Fob — If the internal chip fails, the key itself must be replaced and programmed.
Trusted brands: Mopar
OEM price range: $150-$250
Aftermarket price range: $50-$120
Key Fob Battery (OEM #CR2032) — This is the simplest and most common reason for a key to stop communicating with the vehicle.
Trusted brands: Energizer, Duracell
OEM price range: $5-$10
Aftermarket price range: $1-$5

Related Codes That Often Appear With This One

B1A25 - Invalid Key
B1A28 - ECM Mismatch with SKIM

Technical Service Bulletins (TSBs) & Recalls

S2208000073 - No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting: Documents the procedure for re-establishing security communication after a module replacement or battery disconnect on FCA vehicles. This often requires a 'Proxy Alignment' or 'PCM Replaced' function with a dealer scan tool.
TSB Bulletin #S2225000003 - Notes that P0513 (Invalid Skim Key setting) may be present in the PCM after programming a replacement "generic" PCM.
TSB Bulletin #S2508000085 - Describes a "No Crank No Start" condition with P0513 active in the PCM after replacing the Body Control Module (BCM) with part number 68490749AB.

Platform-Specific Known Issues

A no-crank or no-start condition on the Jeep Patriot is frequently caused by an electronic lockup of the Wireless Control Module (WCM).
A user on JK-Forum.com with code P0513 experienced the classic start-and-stall symptom, which resolved itself temporarily, indicating the intermittent nature of WCM failures.
A user on YouTube with a Jeep Wrangler fixed a P0513 code by performing a hard reset (disconnecting battery terminals and touching them together), which can sometimes clear corrupted data in the modules.

Mechanic-Grade Diagnostic Values

CAN C Bus Voltage (CAN High to Ground) — expected: Approx. 2.5V (recessive), 3.5V (dominant). Failure: Voltage is stuck high, low, or shows no change, indicating a bus communication failure.
CAN C Bus Voltage (CAN Low to Ground) — expected: Approx. 2.5V (recessive), 1.5V (dominant). Failure: Voltage is stuck high, low, or shows no change, indicating a bus communication failure.
Key Fob Battery Voltage (CR2032) — expected: Above 2.8V. Failure: Voltage below 2.8V may be insufficient to reliably transmit the security code.
wiTECH Programming Voltage — expected: Maintain between 13.2V and 13.5V. Failure: Dropping below 13.2V or exceeding 13.5V during a flash or proxy alignment can corrupt modules.

Scan Tool Commands That Help

wiTECH: Proxy Configuration Alignment — Required after replacing a networked module (like WCM, BCM, PCM) or after a battery event causes data corruption. It re-synchronizes all modules on the CAN bus to resolve communication mismatches that trigger P0513.
wiTECH: PCM Replaced Procedure / PCM/ECM/ESL replace — Specifically used after installing a new or reflashed PCM. This function transfers the vehicle's secret security key from the BCM/RF Hub to the new PCM, resolving the mismatch that causes an active P0513 code.
wiTECH: Restore Vehicle Configuration — Used before a Proxy Alignment to restore the BCM's original configuration from a backup, ensuring the alignment process has a correct baseline to work from.

Wiring & Ground Locations

WCM/WIN Module — Located in the steering column, integrated with the ignition switch cylinder where the key is inserted.. This is the central module for the immobilizer system. It contains the antenna ring that reads the key transponder. Failure or poor connection here is a primary cause of P0513.
PCM Connector C1 — On the Powertrain Control Module in the engine bay.. This connector carries the CAN C bus signals (Pins 33 and 57 on some models) which communicate security information between the PCM, BCM, and WCM. A poor connection here can sever the security handshake.
Grounds (e.g., G-series) — Grounds for instrument panel and body modules are typically located behind kick panels or under the dash.. A bad ground for the BCM or WCM can cause intermittent communication failures and unpredictable electronic issues, including P0513.

Real Owner Repair Stories

Reddit user 'beardpain' (2009 Jeep Liberty (similar immobilizer system)) — P0513 code appeared, car would click but not turn over, remote start stopped working, brake pedal locked up.
❌ Tried (didn't work) Resetting the key by leaving it in the 'ON' position for 10 minutes.
✅ What actually fixed it The root cause was simply a dead main vehicle battery. Replacing the battery resolved all symptoms. The user noted the importance of checking simple causes first ('Horses, not Zebras').
YouTube user on channel 'JeepSolid' (2014 Jeep Wrangler JK (similar immobilizer system)) — P0513 Invalid SKIM Key error, engine would start and stall.
❌ Tried (didn't work) Using a spare key., Restoring the PCM to factory settings using a Superchips programmer.
✅ What actually fixed it A hard reset of the electrical system. The user disconnected both battery terminals, touched them together for 5-10 seconds to discharge capacitors, and then reconnected them. This cleared the corrupted module data and allowed the vehicle to start with both keys.
NHTSA ODI #11684770 — An owner reported the vehicle shut off and displayed a red immobilizer warning; diagnostic scans revealed BCM memory faults (B22A9), immobilizer lockout (P0513), CAN-C bus communication errors, and repeated low-voltage codes.

OEM Part Supersession History

Multiple (e.g., 68291647aj, 68434597ab) → 68583952AA (Example for Ram, illustrates Mopar's practice) — Revisions to improve reliability or component changes.
Heads up: While not specific to the Patriot, Mopar frequently updates WCM/RFH modules. It is critical to verify the correct part number by VIN. Using a module from a different model year or vehicle line, even if it physically fits, will not work due to different firmware and security protocols.

Model Year Variations Within This Range

Approx. 2007-2010: Earlier models are more consistently referred to with the Wireless Control Module (WCM) or Sentry Key Remote Entry Module (SKREEM). The part is typically a ring around the ignition cylinder that also houses the electronics.
Approx. 2011-2017: Later models may use the term Wireless Ignition Node (WIN), which integrates the key slot, immobilizer reader, and ignition switch functions into a single unit. While functionally similar for this code, the physical part and replacement procedure can differ slightly.

Diagnostic Flowchart

P0513 (Invalid Skim Key) on the Patriot/Compass platform usually indicates a communication failure between the key and the Wireless Control Module (WCM). Start by checking the instrument cluster for security indicators.

Attempt to start the vehicle using a known-good spare key. Does the vehicle stay running?

Since the spare works, the primary key is the issue. Have you replaced the CR2032 battery in the non-working fob?

→ The internal transponder chip in the primary key has failed. You must have a new key cut and programmed by a dealer or locksmith.

→ Replace the CR2032 battery in the primary key fob. If it still fails, the key's transponder is likely faulty.

Perform a 'Hard Reset': Disconnect both battery terminals and hold them together for 30 seconds to drain capacitors and reset modules. Does this clear the code?

→ The issue was a temporary electronic lockup or corrupted EEPROM data. Monitor for recurrence; if it returns, the WCM is failing.

Per TSB S2208000073, the security synchronization may be lost. Do you have access to a dealer-level scan tool (wiTECH)?

→ Perform a 'Proxy Configuration Alignment' or 'PCM Replaced' routine to re-synchronize the security modules.

Check for secondary codes like B1A25 or B1A28. Is the Wireless Control Module (WCM/SKREEM) responding to the scan tool?

→ The WCM has likely failed, a common issue on the Patriot/Caliber platform. Replace the WCM ($150-$250) and program it to the vehicle.

→ Inspect the wiring harness around the steering column for damage or aftermarket remote starter interference. If wiring is intact, replace the WCM.

Did this P0513 code appear immediately after a battery replacement, jump-start, or PCM flash?