Toyota Camry owners & service manuals

Toyota Camry (XV70): Engine Circuit Malfunction (C1280)

DESCRIPTION

If a malfunction in the ECM circuit occurs, the 4WD ECU assembly will output this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1280

Engine Circuit Malfunction

When the following continues for 5 seconds or more:

  • Communication with ECM is operating normally, but engine control system is malfunctioning.
  • Engine control system
  • 4WD ECU assembly

PROCEDURE

1.

CHECK FOR DTC (ENGINE CONTROL SYSTEM)

(a) Check if the engine control system DTC is output.

Powertrain > Engine > Trouble Codes

Result

Proceed to

Engine control system DTC is not output

A

Engine control system DTC is output

B

A

REPLACE 4WD ECU ASSEMBLY

B

GO TO ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

    READ NEXT:

     ABS Malfunction (C1296)

    DESCRIPTION If a malfunction in the speed sensor signal circuit or yaw rate and acceleration sensor (airbag sensor assembly) circuit occurs, the 4WD ECU assembly will output this DTC. The airbag sen

     Steering Angle Sensor (C1297)

    DESCRIPTION The 4WD ECU assembly determines that the vehicle is turning based on the signals sent from the steering sensor. The steering sensor signal is sent to the 4WD ECU assembly via CAN communi

     Linear Solenoid Circuit (C1298)

    DESCRIPTION The 4WD ECU assembly receives signals from each sensor to control clutch fluid pressure for limiting the center differential operation, which distributes torque according to the driving co

    SEE MORE:

     Reassembly

    REASSEMBLY PROCEDURE 1. INSTALL REAR SPOILER RETAINER (w/ Rear Spoiler) except TRD: Click here 2. INSTALL REAR SPOILER (w/ Rear Spoiler) Click here 3. INSTALL LUGGAGE COMPARTMENT DOOR CUSHION (a) Engage the 8 claws to install 2 new luggage compartment door cushions.

     Right Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open (C14E914)

    DESCRIPTION Refer to DTC C051212 Click here DTC No. Detection Item DTC Detection Condition Trouble Area C14E914 Right Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open An open or short in the speed sensor power supply circuit is detected for 0.

    © 2023-2026 Copyright www.tocamry.com