SFI SYSTEM, Diagnostic DTC:P1023, P2614

DTC Code DTC Name
P1023 Camshaft Position Signal Output "B" Circuit
P2614 Camshaft Position Signal Output Circuit / Open

DESCRIPTION

Refer to DTC P0010 Click here.

DTC No. DTC Detection Condition Trouble Area
P1023

Malfunction in rotation sensor of camshaft timing control motor is detected for 3 seconds

(1 trip detection logic)

 Camshaft timing control motor (bank 2)
P2614

Malfunction in rotation sensor of camshaft timing control motor is detected for 3 seconds

(1 trip detection logic)

 Camshaft timing control motor (bank 1)
CAMSHAFT CONTROL MOTOR SYMPTOMS AND FAIL-SAFE DURING MALFUNCTION
Vehicle Condition Fail-Safe

  • Deterioration of driving performance as result of engine combustion degradation

  • Engine output deficiency

  • Power to camshaft timing control motor is cut

  • Valve timing of bank that is operating normally is fixed at maximum retard angle

MONITOR DESCRIPTION

This DTC is output when a malfunction in the intake side camshaft timing control motor's rotation sensor is detected. The camshaft timing control motor is equipped with a self diagnostic function, which is used to output the duty ratio (when normal: 80%) as a signal (VTM) to the ECM. If the ECM receives a duty signal of 40%, a DTC is output immediately (1 trip detection logic). If the engine is idled for 10 seconds, a DTC is detected.

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 OR BANK 2)


    1. Replace the camshaft timing control motor Click here.


    NEXT

  2. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear DTC Click here.

    3. Start the engine and idle it for 10 seconds.

    4. Enter the following menus: Powertrain / Engine / DTC.

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      Other DTCs are output B

    B

    GO TO DTC CHART Click here

    A

    END