Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Engine Control System Malfunction (C1280)

DESCRIPTION

When a malfunction has occurred in the SFI system circuit, the 4WD ECU assembly stores DTC C1280.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1280

Engine Control System Malfunction

SFI system malfunction information is received by the ECM for 5 seconds or more.

  • Engine control system
  • 4WD ECU assembly

PROCEDURE

1.

CHECK FOR DTC (SFI SYSTEM)

(a) Check if the SFI system DTC is output.

Powertrain > Engine > Trouble Codes

Result

Proceed to

SFI system DTC is not output

A

SFI system DTC is output

B

A

REPLACE 4WD ECU ASSEMBLY

B

GO TO ENGINE CONTROL SYSTEM

    READ NEXT:

     ABS Malfunction (C1296)

    DESCRIPTION When a malfunction has occurred in the speed sensor circuit or the yaw rate and acceleration sensor circuit, the 4WD ECU assembly stores DTC C1296. DTC No. Detect

     Steering Angle Sensor (C1297)

    DESCRIPTION The 4WD ECU assembly receives signals from the steering sensor, and thereby detects the steering angle of the steering wheel assembly to determine when the vehicle is turning. When a

     Linear Solenoid (C1298)

    DESCRIPTION Based on the signals from each sensor, the 4WD ECU assembly controls the transmitted torque of the 4WD linear solenoid (transmission coupling assembly). This enables driving force dis

    SEE MORE:

     Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off (P275600,P27567E)

    DESCRIPTION Using the current from the TCM, the shift solenoid valve SLU controls the lock-up clutch pressure, and performs lock-up and flex lock-up control. The TCM compares the engagement condition of the lock-up clutch with the lock-up schedule in the TCM memory to detect mechanical malfunc

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 FUEL MAIN VALVE ASSEMBLY 23070 - - 2 FUEL PRESSURE REGULATOR HOLDER 23283B - - - 3 FUEL SUCTION TUBE WITH PUMP A

    © 2020-2026 Copyright www.tcorollacross.com PT NL