P2610 on 2012-2016 Dodge Journey 3.6L: PCM Engine Off Timer Fault Causes and Fixes

What's Unique About the 2012-2016 Dodge JOURNEY

The Dodge Journey and its platform mates using the 3.6L V6 engine (like the Grand Caravan, Town & Country, and Chrysler 200) are highly prone to this specific code due to software issues, not hardware failure. Chrysler released a series of Technical Service Bulletins (TSBs) for nearly every model year in this range, explicitly stating that P2610 (often along with P0335, U0140, and P0456) is resolved by reprogramming the PCM. This indicates a widespread, known glitch that a dealer reflash is designed to fix, making it a much more common solution than replacing the PCM itself.

Diagnostic Flowchart

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

Symptoms You May Notice

• Check Engine Light is on
• Engine stalling when coming to a stop or making a turn
🎬 Watch: How to diagnose and fix common stalling issues
• Hard starting or longer than usual crank times
• Vehicle may not start at all, requiring wiggling of PCM connectors or a key cycle to resolve temporarily.
• Reduced engine performance or fuel efficiency
• Inability to pass an emissions test due to readiness monitors not completing.

Most Likely Causes

1. Outdated PCM Software 🔴 High Probability Chrysler issued multiple TSBs (e.g., 18-086-16, 18-050-16, 18-081-17) specifically to address this code with a software update, confirming it's a widespread issue on this platform and its relatives.
   How to confirm: A technician with a dealer-level scan tool (wiTECH) can check the vehicle's current software calibration ID against the latest version available from Dodge. If a TSB for P2610 applies to the VIN, the update is necessary.
   Typical fix: Reprogramming (reflashing) the PCM with the updated software at a dealership or qualified shop. This is the definitive fix in most cases.
   Est. part cost: $0
2. Weak or Failing Battery 🟡 Medium Probability Modern vehicle electronics are sensitive to voltage. A weak battery can cause voltage drops during shutdown or startup, which can corrupt the PCM's memory and internal timer logic, triggering the P2610 code.
   How to confirm: Test the battery voltage with a multimeter. It should be approximately 12.4V-12.6V with the engine off and should not drop below 10V during cranking. The charging system should maintain 13.7-14.7V while running.
   Typical fix: Replace the vehicle's battery. Ensure terminals are clean and tight.
   Est. part cost: $150-$300
3. Failing Powertrain Control Module (PCM) ⚪ Low Probability While less common than a software issue, internal hardware failure of the PCM's timer circuit or memory can occur due to heat, vibration, or age.
   How to confirm: This is a diagnosis of exclusion. If a PCM reflash has been performed, the battery and wiring are confirmed to be good, and the code persists, the PCM itself is the likely culprit.
   Typical fix: Replace the PCM and have it programmed to the vehicle's VIN.
   Est. part cost: $400-$800
4. Poor PCM Power or Ground Connections ⚪ Low Probability
   How to confirm: Visually inspect the PCM connectors for corrosion, bent pins, or water intrusion. Perform a voltage drop test on the PCM's power and ground circuits to check for high resistance. Wiggling the main PCM connector (C1) and seeing if the vehicle then starts can be an indicator of a poor connection.
   Typical fix: Clean or repair the affected wiring or connectors. In some cases, the connector itself may need to be replaced. Apply dielectric grease to protect the connection.
   Est. part cost: $5-$150

Rare But Worth Checking

• Faulty Engine Coolant Temperature (ECT) Sensor:

Diagnosis Steps

1. Check for applicable Technical Service Bulletins (TSBs) for your vehicle's VIN. The manufacturer has identified this as a known issue, and a reflash is the most probable solution.
2. Fully test the battery and charging system. Ensure voltage is stable and within specification (~12.6V off, 13.7-14.7V running). A weak battery is a common secondary cause.
3. Inspect the battery terminals and main chassis grounds for corrosion 🎬 Watch: How a bad ground cable causes no-start issues or looseness. Clean and tighten as necessary.
4. If TSBs exist and have not been performed, have a Dodge dealer or qualified shop reflash the PCM with the latest software. This is the most likely fix and should be done before replacing any parts.
5. Inspect the PCM wiring and connectors for any signs of corrosion, damage, or loose pins. A user on a forum reported that wiggling the C1 connector would allow the car to start, indicating a connection issue rather than an internal PCM fault.
6. If all previous steps fail to resolve the code, the PCM itself may have an internal hardware failure and require replacement.

Parts You'll Likely Need

• Powertrain Control Module (PCM) (OEM #68259135AB (Example for 2016 3.6L)) — This part is only needed if a software reflash fails to fix the issue, indicating an internal hardware failure of the module's timer circuit.
  Trusted brands: Mopar (OEM)
  OEM price range: $500-$900
  Aftermarket price range: $300-$600

Related Codes That Often Appear With This One

• P0335 — Crankshaft Position Sensor Circuit. The TSBs for the Journey explicitly list this code as being resolved by the same PCM software update that fixes P2610.
• U0140 — Lost Communication With Body Control Module. This network code is also frequently triggered by the same PCM software fault and is listed in the same TSBs.
• P0456 — EVAP System Small Leak. This is another common code listed in the TSBs that is often fixed by the PCM reflash, indicating the timer issue can affect EVAP system self-tests.
• P1607 — PCM Internal Shutdown Timer Slow Rationality. This is a closely related code that points to a similar internal PCM timer problem and is also addressed by the software updates.

Technical Service Bulletins (TSBs) & Recalls

• 18-080-17: Addresses P2610 on 2016 models, often with stalling symptoms.
• 18-081-17: Covers 2015 models, listing P2610 along with various misfire and EVAP codes fixed by a reflash.
• 18-086-16: For 2014 models, this TSB groups P2610 with P0335 and U0140 as being fixed by a software update, and notes that attempting to clear the DTCs may be unsuccessful without the flash.
• 18-050-16 & 18-050-16 REV. A: These bulletins for 2012-2013 models also identify a PCM reflash as the solution for P2610 and other related codes, and the revision adds the 2012 model year to the list.

Platform-Specific Known Issues

• Multiple TSBs were issued for the 2012-2016 Dodge Journey 3.6L, confirming that P2610 is a known software problem. TSBs #18-080-17, #18-081-17, #18-086-16, and #18-050-16 all list P2610 as a code that can be resolved by reprogramming the PCM.
• The software glitch often bundles P2610 with other codes like P0335 (Crank Sensor), U0140 (Lost Comms with BCM), and P0456 (EVAP Leak), all of which are typically resolved by the same PCM flash.

Mechanic-Grade Diagnostic Values

• Battery Voltage at PCM Connector (Engine Off) — expected: > 12.2 V. Failure: Voltage below 12.2V indicates a weak battery or excessive voltage drop in the supply circuit.
• Charging System Voltage at PCM Connector (Engine Running) — expected: > 13.5 V. Failure: Voltage below 13.5V indicates a problem with the alternator or charging circuit.
• Scan Tool Live Data PID: 'Engine Off Timer' — expected: Counts down to zero within 5-10 seconds after engine shutdown.. Failure: Timer does not count down, counts erratically, or does not reset.
• Engine Coolant Temperature (ECT) Sensor Resistance — expected: 2,000 to 3,000 Ohms at 68°F (20°C). Failure: Resistance is outside of the expected range, indicating a faulty sensor.

Scan Tool Commands That Help

• wiTECH: Reprogram PCM (Flash) — This is the primary repair procedure specified by multiple TSBs to fix the P2610 software glitch. It should be performed after verifying battery health and before replacing the PCM.
• wiTECH: Clear All DTCs — Used after the PCM reflash is complete to clear P2610 and any other codes that were set during the reprogramming process.
• Professional Scan Tool: CAN Bus Test / Network Scan — To verify the integrity of the communication network. If error frames appear when the engine-off timer message is transmitted, it points to a wiring or module communication issue rather than an internal PCM fault.

Wiring & Ground Locations

• G903 — Top of the transmission (for 3.6L engine).. This is a primary engine/powertrain ground. A poor connection here can cause a variety of electrical faults and codes, including intermittent power issues for the PCM.
• G300 — Located in the driver's side kick panel area.. This is a major interior and chassis ground point. A loose or corroded G300 can cause communication issues between modules like the PCM and BCM, potentially triggering U-codes that often accompany P2610.
• Passenger Strut Tower Ground Stud — On the passenger side strut tower in the engine bay.. This is a key grounding point for the engine bay harness. Forum members report that the stock ground from the engine to this point can be insufficient or corrode, and adding a supplemental 4 or 6-gauge ground wire from the engine block to this stud can resolve unexplained electrical issues.
• PCM Connector C1 — The largest of the connectors on the Powertrain Control Module, located in the engine bay.. This connector carries all the primary power, ground, and signal wires for the PCM. A poor pin connection within this connector can directly cause the P2610 code and no-start symptoms, as demonstrated by owners who temporarily fixed the issue by wiggling it.

Real Owner Repair Stories

• Reddit user in r/MechanicAdvice (Dodge Journey (year not specified, but within platform)) — Intermittent no-start, limp mode, various trouble codes.
  ❌ Tried (didn't work) Not specified, but owner was at 'end of their rope' suggesting multiple failed attempts.
  ✅ What actually fixed it The issue was temporarily resolved by wiggling the C1 connector on the PCM, which allowed the vehicle to start. This strongly indicates a poor pin fit or corrosion in the main PCM connector is the root cause, not a failed PCM.
• YouTube channel 'Pine Hollow Auto Diagnostics' (2009 Dodge Journey (similar platform, demonstrates common ground issue)) — Intermittent no-crank, no-start. Customer had spent $1200 at another shop.
  ❌ Tried (didn't work) Starter replacement, Alternator replacement
  ✅ What actually fixed it The mechanic identified a bad ground connection at the engine block. The final fix was to add a new, supplemental ground cable directly from the engine block ground point to the main chassis ground stud near the battery, ensuring a solid ground path for the starter and other electronics.

OEM Part Supersession History

• 68259135AA → 68259135AB — Standard part revision by the manufacturer, likely to incorporate hardware or firmware improvements.

Model Year Variations Within This Range

• 2012-2016: The specific software update (reflash) required to fix the P2610 glitch is tied to the model year. While the root cause is the same, different TSBs were released for different years (e.g., TSB 18-050-16 for 2012-13, TSB 18-086-16 for 2014, TSB 18-081-17 for 2015, etc.), meaning a dealer must apply the correct calibration file for the vehicle's specific year and original software.