Powertrain, shared range

P34C5 A Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Bank 2 phaser stiff or stuck at an end stop
Motor lead to the bank 2 actuator chafed or shorted
Electric motor of the bank 2 actuator worn or internally shorted
Bank 2 output stage in the phaser control module faulty

Symptoms

  • Check engine light on
  • Bank 2 intake timing frozen, banks run unevenly
  • Slightly rough idle and less torque at low engine speed

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,200
Time0.5–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

cam actuator a driver b2cam actuator a b2

Related codes

P34C4P34C7P34C8P34A8P34A9P0020

References: law.cornell.edu, ntn-snr.com, patents.google.com, static.nhtsa.gov.