P0202 on 2011-2014 Chrysler 200 3.6L: Injector Circuit Malfunction Causes and Fixes

What's Unique About the 2011-2014 Chrysler 200

The 3.6L Pentastar V6 is a widely used engine across many Chrysler, Dodge, and Jeep vehicles. For the P0202 code, the key platform-specific detail is the location of cylinder #2. On the transversely mounted Pentastar in the Chrysler 200, the cylinders are numbered with the rear bank (near the firewall) being 1-3-5 and the front bank (near the radiator) being 2-4-6, from passenger to driver side. This places cylinder #2 on the front bank, making it one of the easiest injectors to access for diagnosis and replacement. This is a significant advantage compared to codes for the rear bank (cylinders 1, 3, 5), which require removing the upper intake manifold.

Symptoms You May Notice

• Check Engine Light is on (may be flashing in severe cases)
• Engine misfire, running rough, or shaking, especially at idle
• Poor acceleration and loss of power
• Reduced fuel economy
• Engine may stall or have difficulty starting
• A distinct ticking sound from the failed injector may be audible

Most Likely Causes

1. Failed Cylinder 2 Fuel Injector 🔴 High Probability → Shop Fuel Injector Fuel injectors on the 3.6L Pentastar are a common failure item across all platforms they are used in. The internal coil windings can fail from heat cycles and vibration over many miles, creating an open circuit that the PCM detects.
   How to confirm: Test the injector's resistance with a multimeter; a healthy Pentastar injector should read around 12-14 Ohms. An infinite (O.L.) reading means it's open and has failed. A reading that is significantly different, such as double the normal resistance, also indicates a failure. The most definitive test is to swap the cylinder 2 injector with another cylinder on the same bank (like #4 or #6). 🎬 Watch: How to test Pentastar 3.6L fuel injectors Clear the codes and run the engine. If the code changes to P0204 or P0206, the injector is faulty.
   Typical fix: Replace the faulty fuel injector. It is often recommended to replace all three injectors on the same bank for balanced performance, especially on higher mileage vehicles. Using OEM Mopar injectors is highly advised, as aftermarket units are known to cause flow rate mismatch issues, leading to new codes.
   Est. part cost: $45-$160
2. Wiring Harness or Connector Issue 🟡 Medium Probability The engine wiring harness is exposed to heat and vibration, which can cause wires to chafe or break. The plastic locking tab on the injector connector can also become brittle and break, leading to a poor connection that vibrates loose.
   How to confirm: Visually inspect the wiring leading to the cylinder 2 injector for damage, chafing against brackets, or melting. Check the connector for a secure fit, corrosion, or damaged pins. Wiggle the connector with the engine running to see if it causes the misfire to change. Use a 'noid' light in the injector connector; it should flash when the engine is cranked, indicating a good signal from the PCM.
   Typical fix: Repair the damaged section of wire. If the connector is broken, replace it with a new pigtail connector. Ensure the new wiring is properly shielded and routed away from heat sources.
   Est. part cost: $15-$25
3. Faulty Powertrain Control Module (PCM) ⚪ Low Probability → Shop Engine Control Module (ECM)
   How to confirm: This should only be considered after the injector and wiring have been proven to be good. A noid light test that shows no flash at the connector, combined with a wiring check that shows no breaks (good continuity from the connector to the PCM), points to a potential PCM injector driver failure. A professional scan tool may offer an injector driver self-test to confirm an internal PCM fault.
   Typical fix: The PCM needs to be repaired by a specialist or replaced and programmed to the vehicle's VIN.
   Est. part cost: $800-$1200

Diagnosis Steps

1. Verify the code with an OBD-II scanner. Note if any other codes, like P0302, are present.
2. Locate cylinder #2. On the transverse 3.6L in the Chrysler 200, it is the front bank (closest to the radiator), first cylinder on the passenger side.
3. Inspect the wiring and connector for the cylinder 2 fuel injector. Ensure the connector is fully seated and the locking tab is engaged. Check for any visible damage to the wires.
4. Perform a 'noid light' test. Disconnect the injector and plug in a noid light. Start the engine. A flashing light confirms the PCM and wiring are sending a signal. No light or a solid light points to a wiring or PCM issue.
5. If the noid light flashes, the injector is the likely culprit. To confirm, test the injector's resistance with a multimeter. Disconnect the injector and measure across the two pins. It should be around 12-14 Ohms. 🎬 Watch: How to test injector resistance with a multimeter A reading of infinity (O.L. - Open Loop) or a value significantly different from spec confirms the injector has failed internally.
6. As a definitive alternative, swap the cylinder 2 injector with the cylinder 4 injector (on the same bank). Clear the codes, run the engine, and re-scan. If the code has changed to P0204, you have confirmed the injector is the faulty component.
7. If the noid light does not flash, check for 12V power on one wire of the injector connector (typically a shared color for all injectors) with the key on, engine off. This power comes from the Auto Shutdown (ASD) relay. Then, check for continuity on the other wire (the control wire) back to the PCM. Repair any breaks found in the wiring.
8. If the wiring is good but the noid light still doesn't flash, the PCM's injector driver has likely failed, which is a rare but possible outcome.

Parts You'll Likely Need

• Fuel Injector (OEM #05184085AD) — This is the most common cause of a P0202 code on the 3.6L Pentastar engine due to the internal electrical coil failing over time. The part number 05184085AD supersedes the earlier 05184085AC.
  Trusted brands: Mopar (OEM - Recommended), Bosch, Standard Motor Products (SMP)
  OEM price range: $120-$180
  Aftermarket price range: $45-$90
• Fuel Injector Connector Pigtail — Needed only if the original plastic connector or its locking tab is broken, or if wires are damaged right at the connector.
  Trusted brands: Mopar, Dorman
  OEM price range: $25-$40
  Aftermarket price range: $15-$25

Related Codes That Often Appear With This One

• P0302 — This means 'Cylinder 2 Misfire Detected.' Since P0202 indicates a fault in the fuel delivery circuit for cylinder 2, the cylinder cannot fire correctly, which logs the P0302 misfire code as a direct result.
• P0300 — This means 'Random/Multiple Cylinder Misfire.' A severe misfire in one cylinder can sometimes cause engine vibrations that the PCM misinterprets as misfires on other cylinders.

Technical Service Bulletins (TSBs) & Recalls

• TSB 09-002-14: While not for P0202 specifically, this TSB addresses a known defect in the left cylinder head (which houses cylinders 2, 4, and 6) on 2011-2013 models that causes misfires. Chrysler issued an extended warranty (X56) for 10 years/150,000 miles for this issue. While it doesn't cause an electrical code like P0202, it's a critical related issue for this engine and model year range.
• TSB 18-033-14: This bulletin involves a PCM software update for general powertrain improvements. While not a direct fix for P0202, ensuring the PCM software is up-to-date is a good practice to eliminate potential software glitches.

Mechanic-Grade Diagnostic Values

• Fuel Injector Coil Resistance — expected: 12 - 14 Ohms. Failure: A reading of infinity (O.L.), near zero, or significantly different from other injectors (e.g., double the resistance) indicates a failed injector.
• Injector Control Wire Continuity to PCM — expected: < 5.0 Ohms. Failure: A reading higher than 5.0 Ohms suggests excessive resistance or a break in the wire.
• Injector Power Supply Voltage (Key On, Engine Off) — expected: 10V or more (Battery Voltage). Failure: Low or no voltage indicates a problem with the ASD relay or the power supply wire.
• Injector Pulse Width (at idle) — expected: 1-5 milliseconds. Failure: A value of 0 ms on cylinder 2 while others show normal readings indicates the PCM is not commanding the injector to fire, or a complete circuit failure.

Scan Tool Commands That Help

• wiTECH (Chrysler OEM) or equivalent professional scanner: Fuel Injector Actuator Test / Injector Kill — This bidirectional command allows the technician to individually turn off each fuel injector while the engine is running. When cylinder 2 is deactivated, if there is no change in the engine's idle quality, it confirms that cylinder was not contributing, strongly pointing to a failure in its fuel or ignition system. This helps isolate the fault to cylinder 2.
• wiTECH (Chrysler OEM) or equivalent professional scanner: Injector Driver Self-Test — This function, if available, commands the PCM to test its own internal driver circuits. If the test fails for cylinder 2 after the injector and wiring have been confirmed good, it definitively diagnoses a faulty PCM.

Wiring & Ground Locations

• Injector Power Supply (from ASD Relay) — One of the two pins on each fuel injector connector.. This wire provides 12V power to all injectors. While a failure here would likely cause multiple injector codes (e.g., P0204, P0206 as well), a poor connection at just the cylinder 2 connector could cause an isolated P0202.
• Cylinder 2 Injector Control Wire — Runs from a specific pin on the PCM connector directly to the second pin on the cylinder 2 fuel injector connector. For the front bank, this may be a Brown wire with a Gray tracer.. This is the specific wire the PCM pulses with a ground signal to fire the injector. An open circuit, short-to-ground, or short-to-voltage on this single wire will cause a P0202 code.
• PCM (Powertrain Control Module) — Located in the engine bay, typically mounted to the firewall on the driver's side.. This is the source of the control signal. All diagnostic paths for wiring lead back to the PCM connectors. A failure of the internal driver transistor for cylinder 2 within the PCM will set a P0202 code.

Real Owner Repair Stories

• Reddit user in r/Jeep (2017 Jeep Wrangler JKU (3.6L Pentastar)) — Flashing check engine light with codes P0202, P0302, and P0300. Engine idled okay but misfired under RPM load.
  ❌ Tried (didn't work) Swapping ignition coil from cylinder 2 to cylinder 4.
  ✅ What actually fixed it Replacing the fuel injectors resolved all codes and the engine ran smoothly. The user noted the P0202 code was the key, pointing directly to the injector circuit rather than the ignition components.

OEM Part Supersession History

• 05184085AC (or RL184085AC for remanufactured) → 05184085AD — Standard part revision for improved reliability or manufacturing process change.
  Heads up: The parts are interchangeable. 05184085AD is the correct current replacement for 05184085AC.

Model Year Variations Within This Range

• 2011-2013: These early Pentastar engines are known for a potential cylinder head defect on the left bank (which includes cylinder 2) that could cause misfires. While this typically sets a P0302 code, not P0202, it's a critical issue for these model years that can present with similar symptoms. An extended warranty was issued for this problem.
• 2014: For the 2014 model year, Chrysler changed the design of the oil filter and its housing. Using the incorrect filter from a 2011-2013 model can lead to catastrophic engine damage due to oil pressure loss. While not directly related to P0202, it's a crucial service point for this specific year.

Diagnostic Flowchart

Other Known Issues on This Vehicle

Issues unrelated to this code that are worth knowing about as an owner of this generation:

• Cracked Oil Filter / Cooler Housing 🔴 High — Extremely common, typically between 80,000-120,000 miles. The plastic housing becomes brittle and cracks, causing major oil and/or coolant leaks into the engine valley. (Ref: No recall, but it is a widely documented failure. Aftermarket aluminum housings are a popular upgrade.)
• Rocker Arm / Lifter Failure ('Pentastar Tick') 🔴 High — Very common across all 3.6L Pentastar applications, often appearing after 60,000 miles. Needle bearings in the rocker arms fail, causing a distinct ticking sound. If ignored, it can destroy the camshaft lobes. (Ref: Subject of class-action lawsuits, but no specific recall for this component failure.)
• Left Cylinder Head Defect (2011-2013 models) 🔴 High → Shop Engine Cylinder Head — Affected a significant percentage of engines built before mid-2012. A defect in the valve seats/guides on the left head (cylinders 2, 4, 6) leads to wear, compression loss, and persistent misfires. (Ref: TSB 09-002-14; Chrysler issued extended warranty X56 (10 years/150,000 miles), which has now expired for most vehicles.)
• Totally Integrated Power Module (TIPM) Failure 🟠 Medium — Common across many Chrysler platforms of this era. Can cause a wide array of bizarre electrical problems, including crank-no-start, fuel pump issues, and accessories activating randomly. (Ref: Subject of lawsuits and investigations, with limited recalls for specific issues like the fuel pump relay.)

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: For this repair, a used fuel injector is generally not recommended. The failure is electrical and age-related, so a used part from a junkyard carries a high risk of having the same issue or failing soon. A used wiring harness connector pigtail is a viable option if the plastic is in good condition with no broken tabs.

Donor-vehicle mileage cap: roughly under 75000 miles for the part to have meaningful remaining life.

What to inspect on the donor part:

• For a connector pigtail, ensure the locking tab is present and flexible, not brittle.
• Check for at least 6 inches of clean, un-corroded wire attached.
• Avoid parts from vehicles with obvious signs of engine fire or extreme overheating.

OEM-only on this vehicle (don't cheap out):

• Fuel Injector: While some aftermarket brands like Bosch are reputable, many forum users and mechanics strongly advise using OEM Mopar injectors for the 3.6L Pentastar. Aftermarket injectors, especially no-name brands, are notorious for flow rate inconsistencies that can cause performance issues, poor fuel economy, and different trouble codes.

Aftermarket brands forum-validated for this vehicle:

• Bosch (Often the OEM supplier)
• Standard Motor Products (SMP)

Brands owners have reported issues with on this vehicle:

• Unbranded, low-cost injector sets sold on marketplaces like Amazon or eBay. These are frequently cited as causing more problems than they solve.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P0302 — Cylinder 2 Misfire Detected; this code often accompanies P0202 because the electrical failure of the injector prevents fuel delivery, causing a mechanical misfire.
• P0204 — Injector Circuit Code for Cylinder 4; often used during diagnosis when swapping injectors to see if the fault follows the part.
• P0206 — Injector Circuit Code for Cylinder 6; located on the same front bank as cylinder 2 and may fail due to similar heat cycle stress.
• P0201 — Injector Circuit Code for Cylinder 1; part of the same injector driver system managed by the PCM.

Frequently Asked Questions