SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P001001, P002001

DTC Code DTC Name
P001001 Camshaft Position "A" Actuator Bank 1 General Electrical Failure
P002001 Camshaft Position "A" Actuator Bank 2 General Electrical Failure

DESCRIPTION

The VVT-iE system adjusts the intake valve timing using a motor. Compared to conventional hydraulic VVT systems, the valve timing can be adjusted within a wider range and can be retarded more when starting the engine. As the VVT-iE system can operate at low engine speeds and when the engine is cold, lower emissions, increased engine power and fuel economy and enhanced startability have been achieved.


B006E80E06
B0069XUE09
Part and Terminal Name Function
Cam timing control motor with EDU assembly Through its electric motor, operates camshaft timing intake gear assembly. Internal driver detects and performs malfunction diagnosis of motor control, motor speed and rotation direction.
Camshaft timing intake gear assembly Changes valve timing by rotating camshaft timing gear.
ECM Outputs target speed and motor rotation direction in response to driving conditions.
VB Power supply (when engine switch on (IG), battery voltage is 12 V or higher)
GND Power supply ground
VTP Inputs motor activation signal from ECM.
VTS Outputs actual motor speed.
VTD Outputs actual rotation direction.
VTM

Outputs malfunction diagnosis results as a duty ratio.


  • Open circuit in VTP and VTM

  • Normal

  • Internal malfunction in driver

  • Malfunction in motor rotation sensor of driver
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P001001 Camshaft Position "A" Actuator Bank 1 General Electrical Failure

One of the following conditions is met for 3 seconds or more (1 trip detection logic).


  • Cam timing control motor (bank 1) IC has overheated.

  • Open in cam timing control motor (bank 1) circuit.

  • Overcurrent is detected in cam timing control motor (bank 1).

  • Cam timing control motor with EDU assembly (bank 1)

  • Camshaft timing intake gear assembly (bank 1)

 Comes on DTC stored SAE: P0010
P002001 Camshaft Position "A" Actuator Bank 2 General Electrical Failure

One of the following conditions is met for 3 seconds or more (1 trip detection logic).


  • Cam timing control motor (bank 2) IC has overheated.

  • Open in cam timing control motor (bank 2) circuit.

  • Overcurrent is detected in cam timing control motor (bank 2).

  • Cam timing control motor with EDU assembly (bank 2)

  • Camshaft timing intake gear assembly (bank 2)

 Comes on DTC stored SAE: P0020
Symptoms and Fail-safe Operation During Cam Timing Control Motor Malfunction
Vehicle Condition Fail-Safe

  • Engine difficult to start

  • Lack of power

 The cam timing control motor with EDU assembly is operated to the most retarded position.

MONITOR DESCRIPTION

These DTCs are output when an IC overheat malfunction or an overcurrent malfunction is detected in the cam timing control motor with EDU assembly. The cam timing control motor with EDU assembly is equipped with a self-diagnostic function, which is used to output diagnosis signals (VTM) to the ECM. If the ECM receives a motor driver interior malfunction signal, the ECM will illuminate the MIL and store this DTC.

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the engine switch off and wait for at least 30 seconds.

  6. Turn the engine switch on (IG).

  7. Turn the GTS on.

  8. Start the engine and warm it up (until the engine coolant temperature 75°C (167°F) or higher) with all the accessories switched off [A].

  9. Idle the engine for 10 seconds or more [A].

  10. Enter the following menus: Powertrain / Engine / Trouble Codes [C].

  11. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  12. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  13. Input the DTC: P001001 or P002001.

  14. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    Tech Tips


    • If the judgment result is NORMAL, the system is normal.

    • If the judgment result is ABNORMAL, the system has a malfunction.

    • If the judgment result is INCOMPLETE, perform steps [A] through [C] again.

CAUTION / NOTICE / HINT

Tech Tips


  • Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. 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.

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transmission.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

    DTC Suspected Area
    P001001 Bank 1
    P002001 Bank 2

PROCEDURE


  1. INSPECT CAMSHAFT TIMING INTAKE GEAR ASSEMBLY

    B0069UMC01
    *1 Camshaft Timing Intake Gear Assembly
    *2 Eccentric Shaft
    *a Spline

    1. Remove the cam timing control motor with EDU assembly.

      for bank 1: Click here

      for bank 2: Click here

    2. Check if the eccentric shaft of the camshaft timing intake gear assembly rotates smoothly.

      Note

      If the camshaft is at a position where a valve is about to open, the eccentric shaft may become difficult to rotate.

      OK
      Rotates smoothly.

      Tech Tips

      Perform "Inspection After Repair" after replacing the camshaft timing intake gear assembly, or removing or replacing the cam timing control motor with EDU assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY for bank 1: Click here
    REPLACE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY for bank 2: Click here

    NG

    REPLACE CAMSHAFT TIMING INTAKE GEAR ASSEMBLY Click here