P0984 on 2015 Chrysler 200: Shift Solenoid 5 Control Circuit Performance Causes and Fixes

What's Unique About the 2015-2015 Chrysler 200

The 2015 Chrysler 200 uses a ZF 9-speed automatic transmission (ZF 9HP48, also known as 948TE) that was known for having significant issues in its early years, including harsh shifting, lurching, and software glitches. Chrysler released multiple Technical Service Bulletins (TSBs) that address solenoid performance codes like P0984, often by updating the Transmission Control Module (TCM) software. TSB 21-019-17 REV. A is a key example, directly linking P0984 to a software fix. Therefore, unlike in some vehicles where a solenoid code almost always points to a bad solenoid, on this specific car, a software or broader electronic issue is a very real and documented possibility that should be investigated first.

Diagnostic Flowchart

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

Symptoms You May Notice

• Harsh, erratic, or delayed gear shifts.
• Transmission getting stuck in one gear (limp mode).
• Check Engine Light or Service Transmission light is on.
• Vehicle lurching or jerking, especially at low speeds.
• Transmission may seem to slam into gear.
• Decreased fuel economy.
• Inability to select gears using the rotary shifter.
🎬 Watch: Troubleshooting a Chrysler 200 that won't go into gear

Most Likely Causes

1. Transmission Control Module (TCM) Software Issue 🔴 High Probability Chrysler issued multiple TSBs (e.g., 21-019-17 REV. A, 21-015-16) to fix solenoid performance codes by updating the TCM software, indicating this is a known and widespread issue. These updates are designed to correct diagnostic and shift enhancements.
   How to confirm: A dealership or qualified shop with access to Chrysler's wiTECH diagnostic tool can check the current software version of the TCM and compare it against available updates specified in TSBs.
   Typical fix: Flash the TCM with the latest software version. This must be done by a dealer or a properly equipped independent shop. The TSB notes this procedure also enables a 'Transmission Quick Learn' to improve shift quality.
   Est. part cost: $0
2. Faulty Shift Solenoid 'E' (5) 🟡 Medium Probability The ZF 9-speed transmission had documented issues, and internal component failure is a common cause for specific solenoid codes after software issues are ruled out.
   How to confirm: A technician will use a scan tool to command the solenoid on and off while monitoring circuit voltage. If the solenoid doesn't respond correctly or its internal resistance is out of spec when tested with a multimeter, it is faulty.
   Typical fix: Replace the faulty shift solenoid. This requires draining the transmission fluid, removing the pan, and accessing the valve body where the solenoids are located. Solenoids may be sold individually or as part of a complete valve body assembly.
   Est. part cost: $50-$150
3. Wiring Harness or Connector Issue 🟡 Medium Probability A recall and general complaints mention issues with the transmission wiring harness on this platform, which can cause various electronic faults. Rodent damage has also been reported by owners as a cause for harness failure. Chafing and corrosion at the main connector to the transmission are common points of failure.
   How to confirm: Visually inspect the wiring harness between the TCM and the transmission for any signs of damage, corrosion, or loose connections. A technician would perform a continuity and resistance test on the specific circuit for solenoid 'E' from the TCM connector to the transmission connector.
   Typical fix: Repair the damaged section of the wiring or clean/replace the faulty connector. In some cases of extensive damage, the entire harness may need replacement.
   Est. part cost: $10-$100
4. Low or Dirty Transmission Fluid ⚪ Low Probability While not specific to this car, low or contaminated fluid can cause erratic hydraulic pressure, leading to performance codes for solenoids. This transmission is sensitive to fluid type and level.
   How to confirm: Check the transmission fluid level and condition according to the manufacturer's procedure. Note that this transmission does not have a traditional dipstick, making it more difficult to check; it requires the vehicle to be level and at a specific temperature.
   Typical fix: Perform a transmission fluid drain and fill or a full fluid exchange with the correct Mopar ZF 8&9 Speed ATF or an equivalent approved fluid like ZF Lifeguard 9.
   Est. part cost: $150-$300

Rare But Worth Checking

• Faulty Transmission Control Module (TCM): While a software update is more common, the TCM itself can fail. This is usually suspected after all other possibilities (solenoid, wiring, fluid) have been ruled out. The presence of other communication codes (like U0401) or internal performance codes (like P1634) alongside P0984 increases the likelihood of a TCM issue. Replacement requires programming and a 'proxy alignment' procedure to sync with other vehicle modules.

Diagnosis Steps

1. Connect a professional OBD-II scanner (like Chrysler's wiTECH) to verify the P0984 code and check for any other related transmission or communication codes.
2. Check for any available Technical Service Bulletins (TSBs) or recalls related to the transmission or P0984. Prioritize any software updates recommended by Chrysler, specifically TSB 21-019-17 REV. A.
3. Check the transmission fluid level and condition. This must be done at a specific temperature and via the fill plug, as there is no dipstick. 🎬 Watch: How to properly change fluid on the 9-speed transmission The fluid should be clean and red/brown, not black or burnt-smelling.
4. Inspect the transmission wiring harness and the main connector at the transmission case for any visible damage, corrosion, or loose pins. Pay close attention to areas where the harness might chafe against the chassis or engine components.
5. Using a scan tool, command the shift solenoid 'E' on and off to check its response. Monitor the circuit voltage and status.
6. If the solenoid and wiring are suspected, disconnect the TCM and transmission connectors. Perform a resistance test on the solenoid through the wiring harness. If the reading is out of specification, test the solenoid directly at the transmission connector to isolate the fault between the wiring and the solenoid itself.
7. If the solenoid and wiring test good, and a software update has already been performed or is not applicable, the issue likely lies with the TCM. A TCM replacement will require programming and a proxy alignment.

Parts You'll Likely Need

• Shift Solenoid 'E' (or Solenoid Pack/Valve Body) (OEM #ZF Part: 0501220902) — This is the component directly identified by the trouble code. While often a software issue, the solenoid itself can fail. It is typically located on the valve body inside the transmission.
  Trusted brands: Mopar, ZF (Original Equipment)
  OEM price range: $100-$200
  Aftermarket price range: $50-$150
• Mopar ZF 8&9 Speed ATF (OEM #68218925AA) — The correct transmission fluid is required when replacing the solenoid or performing any internal transmission service. Using the wrong fluid can cause severe damage.
  Trusted brands: Mopar, ZF Lifeguard 9
  OEM price range: $25-$40 per quart
  Aftermarket price range: $20-$30 per quart
• Transmission Pan Gasket — The transmission pan must be removed to access the solenoids, and the gasket should always be replaced to prevent leaks.
  Trusted brands: Mopar, Fel-Pro, Mahle
  OEM price range: $30-$50
  Aftermarket price range: $15-$30

Related Codes That Often Appear With This One

• P0981 — This is for Shift Solenoid 4 (D). The TSBs show these codes often appear together, suggesting a common electrical or software problem affecting multiple solenoid circuits.
• P0978 — This is for Shift Solenoid 3 (C). Like P0981, it is listed in the same TSBs and points to a potential shared fault.
• U0401 — Implausible Data Received from ECM/PCM. This network code often accompanies transmission codes on this vehicle, pointing towards a deeper electronic or module communication problem, as noted in TSB 21-015-16.
• P1634 — TCM Internal Watchdog Performance. This code specifically indicates a problem within the Transmission Control Module itself, making it a likely companion code if the TCM is the root cause. It is also mentioned in TSBs alongside P0984.

Technical Service Bulletins (TSBs) & Recalls

• 21-019-17 REV. A: Mentions P0984-00 Shift Solenoid 5 Control Circuit Performance and points to a software fix.
• 21-015-16: Also lists P0984-00 and other solenoid codes, suggesting a common repair procedure.
• 21-021-15 REV-E: Another bulletin that groups P0984-00 with other transmission codes, reinforcing the likelihood of a software or common electronic fault.

Platform-Specific Known Issues

• The ZF 9-speed transmission in the 2015 Chrysler 200 was subject to numerous owner complaints about poor shift quality, lurching, and hesitation.
• Chrysler released several software updates via TSBs to address these drivability complaints and specific trouble codes, including P0984. TSB 21-019-17 REV. A is a primary example.
• A recall was issued for some 2015 models due to a potential for the transmission to unexpectedly shift to neutral because of faulty crimps in the wiring harness, highlighting the platform's electronic vulnerabilities.
• Loss of communication with the TCM is a common related complaint, which can be caused by wiring issues or internal TCM faults.

Mechanic-Grade Diagnostic Values

• Shift Solenoid Resistance — expected: 5.0 - 7.0 Ohms at 68°F (20°C). Failure: A reading outside of this range indicates a faulty solenoid coil.

Scan Tool Commands That Help

• wiTECH: Solenoid Actuation Test — Used to individually command Shift Solenoid 'E' on and off to verify its mechanical and electrical response. This helps isolate a faulty solenoid from a wiring issue.
• wiTECH: Transmission Quick Learn — This procedure is required after replacing the valve body, TCM, or updating the TCM software. It resets and relearns the clutch adaptive values to ensure proper shift quality.
• wiTECH: Proxy Configuration Alignment — This is a mandatory procedure if the TCM is replaced. It syncs the new module's VIN and configuration data with the other modules on the vehicle, like the BCM and ECM. Failure to perform this can result in a no-start or no-shift condition.

Wiring & Ground Locations

• Transmission Connector (C1) Pin 11 — The main round electrical connector on the transmission case.. This is the specific pin for the Shift Solenoid 5 (E) control circuit. Technicians can test for voltage, signal, and continuity at this pin to diagnose the circuit between the TCM and the solenoid.
• G106 — On the front center of the frame cross rail, under the crank pulley.. This is a primary ground point that the Transmission Control Module (TCM) relies on. A loose or corroded connection at G106 can cause erratic voltage and intermittent communication issues for the TCM, potentially triggering multiple solenoid performance codes, including P0984.

Real Owner Repair Stories

• 200forums.com user report (2015 Chrysler 200) — Erratic shifting and P0984 code present.
  ❌ Tried (didn't work) Performing the TSB software update for the TCM.
  ✅ What actually fixed it The dealership replaced the entire transmission valve body assembly, as the individual solenoid was not available as a separate part at the time. This resolved the shifting issues and cleared the code.
• Jeep Cherokee owner forum (Jeep Cherokee with 948TE transmission) — P0984 and other transmission codes, harsh shifting.
  ❌ Tried (didn't work) Performing a transmission fluid drain and fill.
  ✅ What actually fixed it Replacement of the main transmission wiring harness, which had chafed through on the bell housing, causing a short in the solenoid circuit.

OEM Part Supersession History

• N/A (Solenoid not sold individually by Mopar initially) → Valve Body Assembly (e.g., 68249418AB) — In the initial years of this transmission, Chrysler did not service the solenoids individually, requiring a full valve body replacement to fix a single solenoid fault.
  Heads up: Aftermarket individual solenoids became available later, but technicians must ensure they are specifically for the 948TE/ZF9HP48, as solenoids from other ZF transmissions are not compatible.