Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSNISSAN-DATSUN2024FRONTIER SL, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM (DTC/CIRCUIT DIAGNOSIS) (6 OF 6)DTC/CIRCUIT DIAGNOSISDTC P25DF: ELECTRIC INTAKE VALVE TIMING CONTROL MOTORDTC DESCRIPTION

2024 Nissan-Datsun Frontier SL, RWD

DTC Description

2024 Nissan-Datsun Frontier SL, RWDSECTION DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition
P25DF-00	A camshaft posi control B1 (A camshaft position control bank 1)	Diagnosis condition	Engine running at idle
		Signal (terminal)	Electric intake valve timing control motor signal
		Threshold	Detects electric intake valve timing control motor signal malfunction.
		Diagnosis delay time	-

POSSIBLE CAUSE

Harness or connectors (electric intake valve timing control motor circuit is open or shorted.)
Electric intake valve timing control motor

FAIL-SAFE

Engine Control System

Fail safe mode		Vehicle behavior
Device fix mode		Fixes electric intake valve timing control motor in the reference position. Fixes exhaust valve timing control solenoid valve in the reference position. The Intake manifold runner control valve motor is turned OFF (Intake manifold runner control valve opens).
Combustion control mode	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).
Others		ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) NOTE: Normal bank transitions intermediate F/S valve timing.

Idle Start/Stop System

Not applicable

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.