Faulty intake valve timing control solenoid (bank 2) due to internal coil failure or contamination; Damaged or corroded wiring harness or connector at the IVTC solenoid; Open or short circuit in the IVTC solenoid control wire between the ECM and solenoid; Sticking or clogged oil control valve inside the IVTC solenoid, often from sludge; Low engine oil level or incorrect oil viscosity affecting cam phaser operation; Failed camshaft phaser or timing chain component causing mechanical timing deviation; ECM software issue or internal driver fault (rare)

DTC codes / Nissan codes / P1135

P1135 · NissanIntake Valve Timing Control Circuit Bank 2

Q: What does code P1135 mean?

Intake Valve Timing Control Circuit Bank 2. P1135 on Nissan vehicles indicates that the engine control module (ECM) has detected an electrical fault in the intake valve timing control (IVTC) circuit for bank 2, which is the bank of cylinders that does not include cylinder number one. The ECM monitors the solenoid command circuit and expects a corresponding change in camshaft position; when the signal is out of range or the response is missing, it sets this code.

P1135 on Nissan vehicles indicates that the engine control module (ECM) has detected an electrical fault in the intake valve timing control (IVTC) circuit for bank 2, which is the bank of cylinders that does not include cylinder number one. The ECM monitors the solenoid command circuit and expects a corresponding change in camshaft position; when the signal is out of range or the response is missing, it sets this code.

SystemPowertrain

Code typeNissan specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Rough idle or stumbling, especially when the engine is cold
Reduced engine power or sluggish acceleration at low RPM
Poor fuel economy due to incorrect valve timing
Occasional engine misfire or hesitation during light acceleration
In some cases, the engine may enter limp mode and limit RPM

Common causes, most likely first

Faulty intake valve timing control solenoid (bank 2) due to internal coil failure or contamination
Damaged or corroded wiring harness or connector at the IVTC solenoid
Open or short circuit in the IVTC solenoid control wire between the ECM and solenoid
Sticking or clogged oil control valve inside the IVTC solenoid, often from sludge
Low engine oil level or incorrect oil viscosity affecting cam phaser operation
Failed camshaft phaser or timing chain component causing mechanical timing deviation
ECM software issue or internal driver fault (rare)

How to diagnose and fix it

Check engine oil level and condition; top up or change oil if contaminated or low
Inspect the IVTC solenoid connector and wiring for corrosion, damage, or loose pins
Measure resistance of the IVTC solenoid (bank 2) and compare to factory specification
Test the solenoid control circuit for power and ground signals using a multimeter or oscilloscope
Remove and clean the IVTC solenoid and oil control valve; replace if clogged or faulty
Verify camshaft timing and phaser operation; repair mechanical issues if timing is off
Clear the code and perform a road test to confirm the repair, rechecking for pending codes

Oil quality and sludge cause most P1135 faults

A dirty or sludged oil control valve is a frequent culprit that many technicians overlook when replacing the solenoid; cleaning the valve often resolves the code without parts replacement.
The code can be set by a mechanical timing issue such as a stretched timing chain or worn phaser, so always verify actual camshaft timing before condemning the electrical circuit.
Intermittent faults often appear only when the engine is cold or under specific load conditions; a wiggle test of the harness while monitoring live data can reveal poor connections.
Bank 2 on V6 Nissan engines is the bank opposite cylinder 1, which is typically the front bank on transverse engines but can be the rear bank on longitudinal layouts; misidentifying the bank leads to replacing the wrong solenoid.
After repairs, the ECM may require a idle relearn or cam phaser calibration procedure to prevent the code from returning immediately.

Can I keep driving with P1135?

You can usually drive the vehicle with this code, but avoid aggressive acceleration and high RPM until it is diagnosed, as incorrect valve timing can reduce performance and fuel economy. If the engine runs rough or enters limp mode, have it checked promptly to prevent further damage.

Tools that help

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Guidance is general and written for Nissan vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.