Toyota Tundra Service Manual: Engine Control System Malfunction (C1201)

DESCRIPTION

If a malfunction in the SFI system is detected, the operation of VSC and TRAC 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 0.5 seconds.

SFI system

PROCEDURE

1.

CHECK SFI SYSTEM

(a) Check if SFI system DTCs are output.

Result

Proceed to

DTCs are not output

A

DTCs are output

B

A

REPLACE ECM

B

INSPECT SFI SYSTEM

    Open in ABS Solenoid Relay Circuit (C146E)

    SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)

    See More:

    Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Radar Cruise Control Presence Determination Malfunction (Engine / HV) (C1A52)
    DESCRIPTION DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor assembly. DTC No. Detection Item DTC Detection Condition Trouble Area C1A52 Radar Cruise Control Presence Determination Malfunction (Engine / HV) Approximately 17 seconds after the ignition switch is turne ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2024 Copyright www.ttundra.com
    0.0367