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P0744 on Nissan Frontier

Torque Converter Clutch Circuit Intermittent

Factory diagnostic protocol and troubleshooting wire for fault code P0744 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
$200 - $850
Parts & Labor DIY
Check P0744 On Another Nissan Model:
Diagnose P0744 on Specific Frontier Model Year:

1. Symptoms of P0744 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 P0744, drivers commonly observe:

Check Engine Light on on Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto))
RPM fluctuates on highway on Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto))
Slight shudder during lockup 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%
Intermittent TCC solenoid failure (Nissan OEM Part)
25%
Contaminated transmission fluid (Nissan OEM Part)
12%
Worn torque converter seal (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 P0744 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 P0744 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 (P0744)

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Direct-Fit Replacement Part

Nissan Frontier OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Nissan Frontier.

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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.

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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 P0744 FAQs

What causes code P0744 to trigger on a Nissan Frontier?

On the Nissan Frontier (3.8L DOHC V6 (310HP / 281 lb-ft / 9-Speed Auto)), P0744 is most frequently caused by Intermittent TCC solenoid failure or Contaminated transmission fluid.

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 P0744?

Yes. Intermittent lockup slippage. Given that P0744 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.