P0117 on Acura TLX
Factory diagnostic protocol and troubleshooting wire for fault code P0117 specifically for the Acura TLX (2021–2026, 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD)).
1. Symptoms of P0117 on Acura TLX
When the Engine Control Module (ECM/PCM) on your Acura TLX (2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD)) logs fault code P0117, drivers commonly observe:
2. Most Likely Causes on Acura TLX
Historical warranty claims and technical repair bulletins for Acura TLX point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Acura TLX
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 Acura TLX equipped with 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD).
Unplug sensor connector while watching live data. If temperature drops to -40°F (-40°C), the sensor itself is shorted. on the Acura TLX equipped with 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD).
If reading stays pegged at max with sensor unplugged, inspect harness for pinch points grounding against engine block. on the Acura TLX equipped with 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD).
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 Acura TLX equipped with 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD).
Bleed air from cooling system, clear DTCs, and verify normal temperature rise on live data. on the Acura TLX equipped with 2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD).
Equipment for Diagnosing Acura TLX (P0117)
VVT Oil Control Solenoid Valve
Restores accurate camshaft timing and oil pressure regulation on Acura TLX.
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 Acura TLX
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Acura TLX:
4. Acura TLX P0117 FAQs
What causes code P0117 to trigger on a Acura TLX?
On the Acura TLX (2.0L Turbo (272HP) / Type S 3.0L Turbo V6 (355HP SH-AWD)), 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 Acura TLX?
On the Acura TLX, the 16-pin DLC diagnostic connector is located Driver footwell below steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Acura TLX 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.