DTC    P0013    Camshaft Position "B" Actuator Circuit / Open (Bank 1)

for Preparation Click here

DESCRIPTION

HINT:

1. This DTC relates to the Camshaft Timing Oil Control Valve (OCV).
   

The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT controller. The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil pressure applied to the VVT controller. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ECM controls the OCV, based on the signals transmitted by several sensors. The VVT controller regulates the exhaust camshaft angle using oil pressure through the OCV. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control. This is how the target intake valve timing is verified by the ECM.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

Read freeze frame data using the intelligent tester. 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.

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine.
   

3. Turn the tester on.
   

4. Turn the A/C switch on.
   

5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank 1).
   

6. Check the engine speed while operating the camshaft timing oil control valve assembly (for exhaust camshaft) using the tester.
   
   

   OK:

   
   

   Tester Operation	Specified Condition
   0% (OFF)	Normal engine speed
   127% (ON)	Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from OFF to ON)

   HINT:

   If the result is not acceptable, cool the engine and perform the Active Test again.

   1. Start the engine when the engine coolant temperature is 30°C (86°F) or less.
      
   2. Turn the tester on.
      
   3. Turn the A/C switch on.
      
   4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank 1).
      
   5. Check the engine speed while operating the camshaft timing oil control valve assembly (for exhaust camshaft) using the tester when the engine coolant temperature is 50°C (122°F) or less.
      
      

      OK:

      
      

      Tester Operation	Specified Condition
      0% (OFF)	Normal engine speed
      127% (ON)	Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from OFF to ON)

NG	Go to step 2

OK
CHECK FOR INTERMITTENT PROBLEMS (Click here)

1. Remove the camshaft timing oil control valve assembly (for exhaust camshaft) (Click here).
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   1 - 2	20°C (68°F)	6.9 to 7.9 Ω

   Text in Illustration 

   *1	Component without harness connected (Camshaft Timing Oil Control Valve Assembly (for Exhaust Camshaft))

3. Connect the positive battery terminal to terminal 1 and connect the negative battery terminal to terminal 2. Check valve operation.
   

   OK:

   Valve moves quickly.
   

4. Reinstall the camshaft timing oil control valve assembly (for exhaust camshaft) (Click here).
   

NG	REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) (Click here)

OK

1. Disconnect the camshaft timing oil control valve assembly (for exhaust camshaft) connector.
   

2. Disconnect the ECM connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance (Check for Open):

   Tester Connection	Condition	Specified Condition
   C11-1 - B8-75 (OE1+)	Always	Below 1 Ω
   C11-2 - B8-97 (OE1-)	Always	Below 1 Ω

   Standard Resistance (Check for Short):

   Tester Connection	Condition	Specified Condition
   C11-1 or B8-75 (OE1+) - Body ground	Always	10 kΩ or higher
   C11-2 or B8-97 (OE1-) - Body ground	Always	10 kΩ or higher

4. Reconnect the camshaft timing oil control valve assembly (for exhaust camshaft) connector.
   

5. Reconnect the ECM connector.
   

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE ECM (Click here)