DTC P0010 Camshaft Position "A" Actuator Circuit (Bank 1); DTC P0020 Camshaft Position "A" Actuator Circuit (Bank 2): Wiring Diagram

Fig 1: Camshaft Position A Actuator Circuit - Wiring Diagram (Bank 1 And 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• If DTC P0010 is displayed, check the right bank VVT system for intake camshaft circuit.
• Bank 1 refers to the bank that includes cylinder No. 1.
• If DTC P0020 is displayed, check the left bank VVT system for intake camshaft circuit.
• Bank 2 refers to the bank that does not include cylinder No. 1.
• 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 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 (See FREEZE FRAME DATA  ).

1. PERFORM ACTIVE TEST BY CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) 
   1. Connect the intelligent tester to the DLC3.
   2. Start the engine and turn the tester on.
   3. Warm up the engine.
   4. On the tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1 or VVT CTRL B2.
   5. Check the engine speed while operating the Oil Control Valve (OCV) using the tester.
      TESTER OPERATION SPECIFIED CONDITION
      
      

      Tester Operation	Specified Condition
      OCV OFF	Normal engine speed
      OCV ON	Engine idles roughly or stalls (soon after OCV switched from OFF to ON)

   OK : CHECK FOR INTERMITTENT PROBLEMS 

   NG : GO TO NEXT STEP 

2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV FOR INTAKE CAMSHAFT) 
   1. Disconnect the E18 or E11 OCV connector.
   2. While idling, check the waveform between the terminals of the E18 or E11 OCV connector using an oscilloscope.

      Standard 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      E18-1 (+) - E18-2 (-)	Correct waveform appears as shown
      E11-1 (+) - E11-2 (-)	Correct waveform appears as shown

      Fig 2: Identifying E18 Or E11 OCV Connector And OCV Signal Waveform

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Reconnect the OCV connector.

   OK : REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 

   NG : GO TO NEXT STEP 

3. INSPECT ECM (OCV SIGNAL) 
   1. Inspect the ECM using an oscilloscope.
   2. While idling, check the waveform between the terminals of the E3 or E5 OCV connector using an oscilloscope.

      Standard 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      OC1+ (E5-34) - OC1- (E5-33)	Correct waveform appears as shown
      OC2+ (E3-9) - OC2- (E3-8)	Correct waveform appears as shown

      Fig 3: Identifying OCV Signal Waveform

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG : REPLACE ECM 

   OK : REPAIR OR REPLACE HARNESS AND CONNECTOR