DTC DETECTION LOGIC

NOTE:
If DTC P0122, P0123, P0227 or P0228 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to DTC Logic (GT-R certified NISSAN dealer).

DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0122
Throttle position sensor 2 (bank 1) circuit low input
An excessively low voltage from the TP sensor 2 is sent to ECM.
  • Harness or connectors
    (TP sensor 2 circuit is open or shorted.)
  • Electric throttle control actuator
    (TP sensor 2)
P0123
Throttle position sensor 2 (bank 1) circuit high input
An excessively high voltage from the TP sensor 2 is sent to ECM.
P0227
Throttle position sensor 2 (bank 2) circuit low input
An excessively low voltage from the TP sensor 2 is sent to ECM.
P0228
Throttle position sensor 2 (bank 2) circuit high input
An excessively high voltage from the TP sensor 2 is sent to ECM.

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE