P0011-BANK 1 CAMSHAFT 1 POSITION TARGET PERFORMANCE





For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    Variable Valve Timing (VVT) rationality is monitored under the following conditions: (1) Cam phasing is commanded off of the default (lockpin) position; (2) Oil temperature is between 20° F and 284° F (-7° C to 140° C); (3) Battery voltage is greater than 10 volts; (3) Engine speed is at least 1000 to 1400 rpm, depending on oil temperature; (4) No CMP sensor, CKP sensor, or OBDI plausibility errors. Before VVT can be enabled, reference adaptation must be completed.

  • Set Condition:

    The actual camshaft phasing setpoint does not match the desired camshaft phasing setpoint.


Possible Causes
  
INTERMITTENT DTC
  
ENGINE OIL DIRTY OR CONTAMINATED
  
INCORRECT ENGINE OIL VISCOSITY
  
(K343) FUSED MAIN RELAY OUTPUT CIRCUIT HIGH RESISTANCE
  
(K76) CMP 1/1 CONTROL CIRCUIT HIGH RESISTANCE
  
CAMSHAFT 1/1 POSITION SOLENOID
  
CAMSHAFT PHASER
  

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

Theory of Operation


Dual Variable Valve Timing (VVT) allows the PCM to monitor and adjust the position of each camshaft, based on desired torque levels and engine operating conditions. The PCM controls two solenoid operated control valves, one for each camshaft, that are used to direct oil pressure to hydraulic actuators mounted between each camshaft and its driving sprocket. The oil pressure alters the angular position or phasing of each camshaft relative to crankshaft rotation. A sensor is used to monitor the position of each camshaft.



Diagnostic Test

1.DTC IS ACTIVE

NOTE: Diagnose and repair any system voltage DTCs before continuing with this test.


NOTE: Diagnose and repair any CMP sensor or CKP sensor DTCs before continuing with this test.


NOTE: Diagnose and repair any oil pressure or oil pressure sensor DTCs before continuing with this test.



WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.






Is the status Active for this DTC?

Yes
  • Go to 2


No

2.ENGINE OIL DIRTY OR CONTAMINATED



NOTE: If the engine oil is contaminated, inspect the Camshaft 1/1 Position Solenoid for contamination, foreign material, or any condition that would restrict movement of the valve. The solenoid must be replaced if it is damaged or if valve movement is restricted due to contamination.



Were any problems found?

Yes
  • Clean the engine oil system, including oil passages and, if necessary, replace the Oil Control Valve inlet screen(s), in accordance with the Service Information.
  • Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).


No
  • Go to 3

3.INCORRECT ENGINE OIL VISCOSITY



Were any problems found?

Yes


No
  • Go to 4

4.CAMSHAFT 1/1 POSITION SOLENOID CONTROL ACTUATION





Does the Camshaft 1/1 Position Solenoid click open and closed during the actuation?

Yes
  • Go to 8


No
  • Go to 5

5.(K343) FUSED MAIN RELAY OUTPUT CIRCUIT HIGH RESISTANCE







NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.



Is the test light illuminated and bright?

Yes
  • Go to 6


No

6.(K76) CMP 1/1 CONTROL CIRCUIT HIGH RESISTANCE





NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.



Is the test light illuminated and bright?

Yes
  • Go to 7


No

7.CAMSHAFT 1/1 POSITION SOLENOID







NOTE: The solenoid must be replaced if it is damaged or if valve movement is restricted due to contamination.



Were any problems found?

Yes


No

8.CAMSHAFT PHASER





NOTE: The Phaser should not be disassembled. If the Phaser is damaged, it must be replaced.



Were any problems found?

Yes


No