P0711 on 2015-2016 Jeep Renegade: Transmission Temp Sensor Causes and Fixes

What's Unique About the 2015-2016 Jeep RENEGADE

The 2015-2016 Jeep Renegade uses the ZF 9-speed (948TE) automatic transmission, which was known for having numerous "teething issues" in its early years. Many drivability complaints and fault codes, including P0711, were traced back to the transmission's control software rather than a physical part failure. As a result, Jeep's parent company, FCA (now Stellantis), issued multiple software updates via Technical Service Bulletins (TSBs) to improve shift quality and resolve erroneous fault codes. Checking for these TSBs is the most critical first step 🎬 Watch: How a technician performs the TCM software update for this specific vehicle.

Diagnostic Flowchart

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

Symptoms You May Notice

• Harsh or delayed gear shifts.
• Harsh shifts from Park to Reverse or Drive. [TSB #21-032-15 REVA]
• Check Engine Light is on.
• Transmission overheating warning light on the dashboard.
• Vehicle enters 'limp mode' (stuck in a single gear, often 2nd or 3rd).
• Noticeable burnt smell from the transmission area.
• Hesitation during acceleration.

Most Likely Causes

1. Outdated Transmission Control Module (TCM) Software 🔴 High Probability → Shop Transmission Assembly Early models of the ZF 9-speed transmission had numerous software bugs that were later corrected by manufacturer updates. Multiple TSBs, including 21-031-16, explicitly list P0711 as a code resolved by a software reflash for the 2015-2016 Renegade.
   How to confirm: A Jeep dealership or a qualified shop can check the current TCM software version against the latest available version referenced in TSBs using the vehicle's VIN. This is the definitive first step.
   Typical fix: Update the TCM software to the latest version. This is a dealer or specialist procedure using wiTECH software.
   Est. part cost: $0
2. Faulty Transmission Fluid Temperature Sensor 🟡 Medium Probability → Shop Transmission Assembly The sensor is a thermistor that can fail over time due to heat cycles. It is integrated into the internal pass-through wiring harness (lead frame) within the transmission, making it a more involved repair.
   How to confirm: Using a scan tool, monitor the live data for the transmission fluid temperature. If the reading is stuck (e.g., -40°F), erratic, or doesn't rise with engine temperature, the sensor or its circuit is likely faulty. The sensor's resistance can also be tested with a multimeter; its resistance should be high when cold and decrease as it warms up.
   Typical fix: Replace the transmission valve body wiring harness, which contains the sensor. This requires removing the transmission oil pan to access the harness on the valve body.
   Est. part cost: $80-$150
3. Wiring Harness or Connector Issue ⚪ Low Probability The external wiring from the TCM to the transmission can become damaged from road debris or heat, or the main connector pins can corrode, leading to an incorrect signal.
   How to confirm: Visually inspect the transmission wiring harness for any signs of damage, fraying, or corrosion at the main connector. A continuity test with a multimeter can verify the integrity of the circuit between the TCM and the sensor.
   Typical fix: Repair the damaged section of the wiring harness or clean/replace the faulty connector.
   Est. part cost: $10-$50
4. Low or Degraded Transmission Fluid ⚪ Low Probability → Shop Transmission Assembly While less common for this specific code, very low or old, burnt fluid can cause a variety of transmission issues, including erratic temperature readings or actual overheating. FCA marketed the transmission as 'sealed for life' in the US, but other markets require fluid changes, suggesting fluid degradation is a real possibility.
   How to confirm: Check the transmission fluid level and condition. This transmission does not have a traditional dipstick and requires a special tool (Mopar P/N 10323A) and a specific procedure to check the level accurately.
   Typical fix: Perform a transmission fluid drain and fill with the correct Mopar ZF 9-speed fluid (Mopar P/N 68218925AA).
   Est. part cost: $150-$250

Rare But Worth Checking

• Faulty Transmission Control Module (TCM): → Shop Transmission Assembly While rare, the TCM itself can fail internally. This should only be considered after all other possibilities, especially software updates and sensor/wiring checks, have been exhausted.

Diagnosis Steps

1. Check for TSBs: The first and most important step is to have a Jeep dealer or qualified shop check your vehicle's VIN for any open TSBs related to the transmission. The fix is very likely a software update as per TSBs 21-031-16, 21-032-15, and others.
2. Scan for Codes: Use an OBD-II scanner to confirm P0711 and check for any other related transmission codes which can help confirm a software-related issue.
3. Monitor Live Data: Use a scan tool to watch the transmission fluid temperature (TFT) reading. On a cold start, it should be close to ambient air and engine coolant temperature. It should rise steadily as the vehicle runs. A stuck value (e.g., -40°F or 250°F) or erratic jumps point to a circuit/sensor fault.
4. Check Fluid Level and Condition: Although difficult without the special tool, verifying the fluid level and condition is a fundamental step. Burnt fluid or a low level indicates other problems that must be addressed.
5. Inspect Wiring: Visually inspect the main transmission wiring harness and connector for any obvious damage, corrosion, or loose connections. Pay close attention to where the harness may rub against the chassis or engine components.
6. Test the Sensor Circuit: If software is up-to-date and wiring looks good, but the live data is still incorrect, test the sensor circuit. The sensor is a thermistor; its resistance should change inversely with temperature. This requires accessing the sensor connector inside the transmission pan and using a multimeter.
7. Replace the Sensor/Harness: If the sensor itself tests faulty, it must be replaced. It is part of the internal valve body wiring harness.
8. Consider the TCM: If all other steps fail to resolve the issue, the TCM itself may be faulty, but this is the least likely cause.

Parts You'll Likely Need

• Transmission Control Module (TCM) Software Update — This is the most common solution for P0711 on the 2015-2016 Renegade, as confirmed by multiple manufacturer TSBs.
  Trusted brands: Mopar (Dealer Service)
  OEM price range: $150-$250
• Transmission Valve Body Wiring Harness (OEM #68372091AA (Verify with VIN)) — If a software update does not fix the issue and diagnostics confirm a sensor failure, this harness which contains the integrated temperature sensor must be replaced. It is located inside the transmission oil pan.
  Trusted brands: Mopar
  OEM price range: $80-$150
  Aftermarket price range: $50-$100

Related Codes That Often Appear With This One

• P061B — Internal Control Module Torque Calculation Performance, often cited in the same TSBs related to TCM software issues. [TSB #2103116, TSB #21-042-17, TSB #21-021-16]
• P072F — Stuck In Gear 4, another code frequently linked to the same TCM software problems. [TSB #2103116, TSB #21-042-17, TSB #21-021-16]
• P0887 — TCM Power Control Circuit High, listed alongside P0711 in multiple TSBs for software updates. [TSB #2103116, TSB #21-042-17, TSB #21-032-15 REVA]
• P1CC9 — Unable to Engage Gear, another symptom-related code addressed by the same TCM software flashes. [TSB #2103116, TSB #21-042-17, TSB #21-021-16, TSB #21-030-15 REV-A, TSB #21-032-15 REVA]

Technical Service Bulletins (TSBs) & Recalls

• 21-031-16: Addresses P0711 and other DTCs with a TCM software update for 2015-2016 Renegade.
• 21-042-17: Also mentions P0711 as being resolved by software updates for 2015 models.
• 21-021-16: Cites P0711 in a list of DTCs related to TCM performance.
• 21-030-15 REV-A: Lists P0711 as a DTC that can cause MIL illumination, fixed by a software update.
• 21-032-15 REV-A: Connects P0711 to harsh garage shifts and recommends a TCM software update.

Platform-Specific Known Issues

• Jeep issued multiple Technical Service Bulletins (TSBs) for the 2015-2016 Renegade to address this code and related shifting problems by reprogramming the TCM.
• TSB #21-031-16 specifically mentions P0711 and other codes that can be resolved by a software flash for the 2015-2016 Renegade.

Mechanic-Grade Diagnostic Values

• Transmission Fluid Temperature Sensor Resistance — expected: Approximately 79 Ω to 156 kΩ, depending on temperature. Resistance is high when cold and decreases as fluid warms up.. Failure: A reading of infinite resistance (open circuit) or a value outside the expected range for a given temperature indicates a faulty sensor.
• TFT Sensor Reference Voltage (at sensor connector, KOEO) — expected: Approximately 5 Volts.. Failure: No voltage or significantly lower voltage points to a wiring or TCM issue, not a sensor failure.
• Live Data Scan Tool Reading (TFT) — expected: Should be close to ambient temperature on a cold start and rise steadily to an operating range of 175°F - 225°F.. Failure: A reading that is stuck at an extreme (e.g., -40°F or over 250°F) or does not change with operating time points to a circuit fault.

Scan Tool Commands That Help

• wiTECH (or equivalent advanced scanner): Quick Learn — After replacing transmission components like the valve body or internal harness, or after a software update, to allow the TCM to relearn adaptive values for shift points and clutch engagement.
• wiTECH (or equivalent advanced scanner): Proxy Alignment (Proxi) — If modules have been replaced or the battery has been disconnected for an extended period, a proxy alignment may be needed to ensure all vehicle modules are communicating correctly. A flashing odometer is a key indicator that a proxy alignment is required.

Wiring & Ground Locations

• Transmission Fluid Temperature Sensor — The sensor is not a separate, external part. It is integrated into the internal pass-through wiring harness which is mounted on the valve body inside the transmission oil pan.. This location means the oil pan must be removed for any physical inspection or replacement of the sensor, making it a labor-intensive job compared to an external sensor.

Real Owner Repair Stories

• JeepRenegadeForum.com user (2015 Jeep Renegade Trailhawk 2.4L) — Check engine light on with code P0711.
  ❌ Tried (didn't work) The user first suspected a hardware failure.
  ✅ What actually fixed it The user took the vehicle to the dealer, who performed a TCM software update (flash) which resolved the P0711 code. This aligns with the information in the provided TSBs.

OEM Part Supersession History

• 68372091AA → N/A — Part number appears to be for a 'HEAT SHRINK' tube, not the full harness assembly, according to some parts catalogs. This highlights the importance of verifying the correct harness part number with a dealer using the vehicle's VIN.
  Heads up: Using the wrong part number can lead to acquiring an incorrect component. The part number listed in the Pass 2 data (68372091AA) is described as a heat shrink tube in some sources, not the valve body harness.

Model Year Variations Within This Range

• 2015 vs 2016: The 2016 model year received minor mechanical tweaks to the transmission and suspension for improved ride comfort and fuel efficiency. Several TSBs for P0711 specifically mention '2015 BU only', indicating that some of the initial software issues were addressed in the 2016 production run, though updates may still apply to both years. [TSB #2103116, TSB #21-042-17]