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P0116 on Nissan Frontier

Engine Coolant Temperature Sensor 1 Circuit Range/Performance

Factory diagnostic protocol and troubleshooting wire for fault code P0116 specifically for the Nissan Frontier (2020–2026, 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto)).

Verified OEM Telemetry & Field Repair Tree
Nissan Frontier2020–2026
Nissan Frontier
Truck3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Frontier SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$90 - $260
Parts & Labor DIY
Check P0116 On Another Nissan Model:
Diagnose P0116 on Specific Frontier Model Year:

1. Symptoms of P0116 on Nissan Frontier

When the Engine Control Module (ECM/PCM) on your Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto)) logs fault code P0116, drivers commonly observe:

Check Engine Light on on Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto))
Erratic temperature gauge on Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto))
Radiator fans running constantly on Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto))
Nissan Frontier OBD-II Port Location
The 16-pin diagnostic connector is located Under driver dash above brake assembly. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Nissan Frontier

Historical warranty claims and technical repair bulletins for Nissan Frontier point to the following failure distribution:

55%
Stuck open thermostat (Nissan OEM Part)
25%
Air pocket in cooling system (Nissan OEM Part)
12%
Faulty ECT sensor (Nissan OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Nissan Frontier.

3. Step-by-Step DIY Repair Guide for Nissan Frontier

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P0116 to note engine RPM, load, and voltage when the fault triggered. on the Nissan Frontier equipped with 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto).

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P0116 for chafing, corrosion, moisture, or pin push-out. on the Nissan Frontier equipped with 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto).

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Nissan Frontier equipped with 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto).

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Nissan Frontier equipped with 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto).

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Nissan Frontier equipped with 3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Nissan Frontier (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 Nissan Frontier.

$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 Nissan FrontierVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Nissan Frontier

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Nissan Frontier:

4. Nissan Frontier P0116 FAQs

What causes code P0116 to trigger on a Nissan Frontier?

On the Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto)), P0116 is most frequently caused by Stuck open thermostat or Air pocket in cooling system.

Where is the OBD-II port located on my Nissan Frontier?

On the Nissan Frontier, the 16-pin DLC diagnostic connector is located Under driver dash above brake assembly. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Nissan Frontier with code P0116?

Caution. Verify engine is not overheating. Given that P0116 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.