Obdaryn

P34C5A Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 2

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
P34C5 mirrors P34C4 on bank 2 for intake actuator A: the driver powering the electric phaser motor on the second cylinder bank has measured too much current or run too hot and protects itself. Only V or boxer engines with one electric intake phaser per bank can log it. Two banks give a handy cross-check: if the fault stays on bank 2 after the motors trade places, wiring or the module are to blame; if it moves with the motor, the motor is. The Aisin patent explains why heat and current are judged together, as pressing the phaser hard against its stop lifts both at once. NTN-SNR places it on the bank 2 inlet side. No carmaker publishes P34C5; Nissan's module bulletin NTB18-016 for the 2018 Pathfinder only shows the hardware type. Bank 1: P34C4.
What you may notice
  • Check engine light on
  • Bank 2 intake timing frozen, banks run unevenly
  • Slightly rough idle and less torque at low engine speed
Likely causes
  • LikelyBank 2 phaser stiff or stuck at an end stop
  • PossibleMotor lead to the bank 2 actuator chafed or shorted
  • PossibleElectric motor of the bank 2 actuator worn or internally shorted
  • RareBank 2 output stage in the phaser control module faulty
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Hard · Usually a job for a workshop.Typical cost: €80 – €1,200

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.