P0021

1UR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0011,P0021: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
P0021 - Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2)

DESCRIPTION

Refer to DTC P0010 P0010.





CAMSHAFT CONTROL MOTOR SYMPTOMS AND FAIL-SAFE DURING MALFUNCTION





MONITOR DESCRIPTION

This DTC is output when a valve timing stuck condition is detected. When the valve timing is in the advance angle position, if the valve timing does not vary, and there is a large difference in the target and actual valve timing, it is determined that a malfunction has occurred. When this malfunction is detected, a DTC is output immediately (1 trip detection logic). After the engine is warmed up, if the vehicle is idled for 5 minutes, a DTC is output.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





MONITOR RESULT

Refer to Checking Monitor Status Mode 6 Data.

CONFIRMATION DRIVING PATTERN





- Connect the Techstream to the DLC3.

- Turn the engine switch on (IG) and turn the Techstream on.

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

- Turn the engine switch off and wait for 30 seconds.

- Turn the engine switch on (IG) and turn the Techstream on [A].

- Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more [B].

- Idle the engine for 5 minutes or more [C].

- Enter the following menus: Powertrain / Engine / Trouble Codes.

- Read the DTC [D].

HINT
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.

- Input the DTC: P0011 or P0021.

- Check the DTC judgment result.





HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result sows INCOMPLETE or UNKNOWN, perform steps [E] through [G].
- Drive the vehicle for 2 to 3 minutes [E].

- Idle the engine for 5 minutes or more [F].

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

- Input the DTC: P0011 or P0021.

- Check the DTC judgment result [G].

HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs DTC Check / Clear.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.
INSPECTION PROCEDURE

HINT
- Techstream only:
- By using the Active Test's Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2) function, it can be determined if the VVT-iE system is malfunctioning.
* Connect the Techstream to the DLC3.
* Turn the engine switch on (IG) and turn the Techstream on.
* Start the engine and warm it up.
* Enter the following menus: Powertrain / Engine / Active Test / Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2) / VVT-iE Aim Angle (Bank 1) and VVT-iE Change Angle (Bank 1) or VVT-iE Aim Angle (Bank 2) and VVT-iE Change Angle (Bank 2).
* Perform the Active Test operation with the engine speed at 1500 rpm.

OK:





- Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
PROCEDURE

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011 OR P0021)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read DTCs.

Result:





B -- GO TO DTC CHART SFI System
A -- Continue to next step.

2. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (BANK 1 OR BANK 2)

(a) Replace the camshaft timing gear assembly Components.

NEXT -- Continue to next step.

3. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear DTCs DTC Check / Clear.

(e) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(f) Enter the following menus: Powertrain / Engine / Trouble Codes.

(g) Read the DTCs.

Result:





B -- GO TO DTC CHART SFI System

A -- END