VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1201

DTC Code DTC Name
C1201 Engine Control System Malfunction

DESCRIPTION

If a malfunction in the SFI system is detected, the operation of VSC and TRC is prohibited by the fail-safe function. When the signals from the engine are received normally, fail-safe control is canceled.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1201

Engine Control System Malfunction

Engine control system malfunction signal continues for 2.5 seconds.

SFI system

PROCEDURE

  1. CHECK SFI SYSTEM

    1. Check if SFI system DTCs are output.

      for 1ND-TV:Click here

      for 1NR-FE:Click here

      for 8NR-FTS:Click here

      for 1ZR-FAE:Click here

      for 1ZR-FE:Click here

      for 2ZR-FE:Click here

      for 1WW:Click here

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      DTCs are not output. (for 1ND-TV)

      A

      DTCs are not output. (for 1NR-FE)

      B

      DTCs are not output. (for 8NR-FTS)

      C

      DTCs are not output. (for 1ZR-FAE)

      D

      DTCs are not output. (for 1ZR-FE)

      E

      DTCs are not output. (for 2ZR-FE)

      F

      DTCs are not output. (for 1WW)

      G

      DTCs are output. (for 1ND-TV)

      H

      DTCs are output. (for 1NR-FE)

      I

      DTCs are output. (for 8NR-FTS)

      J

      DTCs are output. (for 1ZR-FAE)

      K

      DTCs are output. (for 1ZR-FE)

      L

      DTCs are output. (for 2ZR-FE)

      M

      DTCs are output. (for 1WW)

      N

      Tip:

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click here

    A

    REPLACE ECM

    B

    REPLACE ECM

    C

    REPLACE ECM

    D

    REPLACE ECM

    E

    REPLACE ECM

    F

    REPLACE ECM

    G

    REPLACE ECM

    H

    INSPECT SFI SYSTEM

    I

    INSPECT SFI SYSTEM

    J

    INSPECT SFI SYSTEM

    K

    INSPECT SFI SYSTEM

    L

    INSPECT SFI SYSTEM

    M

    INSPECT SFI SYSTEM

    N

    INSPECT SFI SYSTEM