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P01162020 Model Year TelemetryMedium Severity

P0116 on 2020 RAM 1500 TRX

Engine Coolant Temperature Sensor 1 Circuit Range/Performance

Technical troubleshooting wire for fault code P0116 specifically tailored for the 2020 RAM 1500 TRX. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2020 Engine Control Module (ECM) Specific Calibration
RAM 1500 TRX2020 1500 TRX
2020 RAM 1500 TRX
Truck • 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)
2020 Stats
Vehicle
2020 1500 TRX
6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)
ECU Subsystem
Automotive OBD-II
SAE Mode $01 & $02
Est. Repair Cost
$90 - $260
OEM Parts & DIY
Urgency Level
Medium
Drivable (Short)
Switch 1500 TRX Model Year for P0116
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Common 2020 1500 TRX Symptoms

  • Check Engine Light on
  • Erratic temperature gauge
  • Radiator fans running constantly

Likely Root Causes on 2020 1500 TRX

  • Stuck open thermostat
  • Air pocket in cooling system
  • Faulty ECT sensor

Step-by-Step Fix Protocol for 2020 RAM 1500 TRX

Step 1: Scan & Record Freeze Frame Data

Connect an OBD-II scanner to the DLC port under the driver dashboard. Record engine RPM, Short Term / Long Term Fuel Trim (STFT/LTFT), and engine coolant temperature at the moment P0116 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2020 1500 TRX engine bay. Use a multimeter to verify reference voltage (5.0V / 12.0V) and ground continuity.

Step 3: Component Replacement & PCM Reset

Replace the verified defective component using OEM or equivalent grade parts. Clear DTC P0116 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools

Equipment for Diagnosing 2020 RAM 1500 TRX (P0116)

Prime Fast Delivery & Verified Fitment
Variable Valve Timing (VVT)

VVT Oil Control Solenoid Valve

4.6 / 5.0 (Direct Fit)

Restores accurate camshaft timing and oil pressure regulation on 2020 RAM 1500 TRX.

$34 – $65 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for 2020 RAM 1500 TRXVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Full Reliability Report2020 1500 TRX ProblemsSafety Recalls2020 1500 TRX RecallsAll Generation Years1500 TRX P0116 Master Hub