Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » P0122, P0123 TP sensor
DTC Logic

DTC DETECTION LOGIC

NOTE: If DTC P0122 or P0123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Refer to EC, "DTC Logic".

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122 Throttle position sensor 2 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 circuit high input An excessively low voltage from the TP sensor 2 is sent to ECM.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and let it idle for 1 second.
  2. Check DTC.

Is DTC detected?

YES >> Go to EC, "Diagnosis Procedure".

NO >> INSPECTION END

    More about «P0122, P0123 TP sensor»:

    DTC Logic

    Diagnosis Procedure

    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / P0122, P0123 TP sensor / DTC Logic

    Nissan Versa Sedan Service Manual

    Categories


    © 2017-2019 Copyright www.niveguide.com