P0117 on Jeep Gladiator
Factory diagnostic protocol and troubleshooting wire for fault code P0117 specifically for the Jeep Gladiator (2020–2026, 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave).
1. Symptoms of P0117 on Jeep Gladiator
When the Engine Control Module (ECM/PCM) on your Jeep Gladiator (3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave) logs fault code P0117, drivers commonly observe:
2. Most Likely Causes on Jeep Gladiator
Historical warranty claims and technical repair bulletins for Jeep Gladiator point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Jeep Gladiator
Read ECT live PID on scanner. If it reads 284°F (140°C) or higher with engine cold, a short to ground exists. on the Jeep Gladiator equipped with 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave.
Unplug sensor connector while watching live data. If temperature drops to -40°F (-40°C), the sensor itself is shorted. on the Jeep Gladiator equipped with 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave.
If reading stays pegged at max with sensor unplugged, inspect harness for pinch points grounding against engine block. on the Jeep Gladiator equipped with 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave.
Allow engine to cool, unscrew old ECT sensor from coolant crossover pipe or thermostat housing, install new OEM sensor with fresh thread sealant. on the Jeep Gladiator equipped with 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave.
Bleed air from cooling system, clear DTCs, and verify normal temperature rise on live data. on the Jeep Gladiator equipped with 3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave.
Equipment for Diagnosing Jeep Gladiator (P0117)
VVT Oil Control Solenoid Valve
Restores accurate camshaft timing and oil pressure regulation on Jeep Gladiator.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Jeep Gladiator
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Jeep Gladiator:
4. Jeep Gladiator P0117 FAQs
What causes code P0117 to trigger on a Jeep Gladiator?
On the Jeep Gladiator (3.6L Pentastar V6 (285HP) / 3.0L EcoDiesel V6 (260HP 442 lb-ft) / Mojave), P0117 is most frequently caused by ECT sensor internal short to ground or Short circuit to ground in ECT signal wiring harness.
Where is the OBD-II port located on my Jeep Gladiator?
On the Jeep Gladiator, the 16-pin DLC diagnostic connector is located Under driver dash near left knee kick panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Jeep Gladiator with code P0117?
No. The ECU thinks the engine is at 280°F+ (overheating) and runs rich or disables cooling fan logic. Given that P0117 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.