DTC DETECTION LOGIC NOTE： If DTC P0234 or P1334 is displayed with DTC P0237, P0238, P0241 or P0242, first perform the trouble diagnosis for DTC P0237, P0238, P0241 or P0242. Refer to DTC Logic (GT-R certified NISSAN dealer).

DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause
P0234 | Turbocharger overboost condition (bank 1) | Turbocharger boost is higher than the target value. |

- Turbocharger boost sensor
- Turbocharger boost control solenoid valve
- Exhaust manifold and turbocharger assembly
- Disconnection, looseness or improper connection of boost control actuator hose

P1334 | Turbocharger overboost condition (bank 2)

DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to Component Function Check (GT-R certified NISSAN dealer).
NOTE：
Use component function check to check the overall function of the turbocharger system circuit. During this check, DTC might not be confirmed.
Is the inspection result normal?
YES>>INSPECTION END
NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).