P34A4A Camshaft Position Actuator Temperature Sensor Circuit Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P34A4 flags an electrical problem of any kind in the temperature sensor circuit of intake camshaft actuator A on bank 1: a wire broken somewhere, a plug that has worked loose, or a value no valid window accepts. Such a sensor belongs to electrically driven phasers; an Aisin patent places it on the motor driver board and reduces motor current once that board stays hot. NTN-SNR lists P34A4 as the inlet-side temperature sensor with an electrical fault. Nissan uses this family on the electric intake valve timing of the 2018 Pathfinder and QX60 but only publishes the range codes P34A5 and P34A9; a public text on P34A4 itself is not known. Without a valid temperature the controller can no longer guard the motor and normally restricts phasing. Low and high faults are P34A6 and P34A7.
- What you may notice
- Check engine light on
- Intake cam phasing on bank 1 restricted or held in its base position
- Often no noticeable change while driving
- Likely causes
- LikelyPlug at the actuator loose or corroded, sensor wire broken
- PossibleTemperature sensor in the actuator or its electronics failed
- RareFault in the module that drives the electric phaser
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.