Inspection Procedure

HINT:

• If DTC P0013 is displayed, check the bank 1 VVT system for exhaust camshaft circuit.
• Bank 1 refers to the bank that includes No. 1 cylinder.
• If DTC P0023 is displayed, check the bank 2 VVT system for exhaust camshaft circuit.
• Bank 2 refers to the bank that does not include No. 1 cylinder.
• 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. CHECK DTC (DTC P0013 OR P0023) 
   1. Connect the intelligent tester to the DLC3.
   2. Clear DTC after recording the freeze frame data and DTC.
   3. Turn the ignition switch OFF.
   4. Allow the engine to idle and check DTC.
   5. Check that P0013 or P0023 is present.

      OK: P0013 or P0023 is present 

      NG: CHECK FOR INTERMITTENT PROBLEMS 

   OK: GO to Next Step 

2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 
   1. Disconnect the B43 or B57 OCV connector.
   2. Remove the OCV.
   3. Measure the resistance between the terminals of the OCV.

      Standard resistance: 6.9 to 7.9 Ω at 20°C (68°F) 

   4. Reconnect the OCV connector.

   NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 

   Fig 1: Measuring Resistance Between Terminals Of OCV

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: GO to Next Step 

3. CHECK WIRE HARNESS (OCV - ECM) 
   1. Disconnect the B43 or B57 OCV connector.
   2. Disconnect the B30 ECM connector.
   3. Measure the resistance.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      B57-1 - B30-56(OE1+)	Below 1 Ω
      B57-2 - B30-55(OE1-)	Below 1 Ω
      B43-1 - B30-S0 (OE2+)	Below 1 Ω
      E43-2 - B30-49 (OE2-)	Below 1 Ω
      B57-1 or B30-S6 (OE1+) - Body ground	10 kΩ or higher
      B57-2 or B30-55 (OE1-) - Body ground	10 kΩ or higher
      B43-1 or B30-50 (OE2+) - Body ground	10 kΩ or higher
      E43-2 or B30-49 (OE2-) - Body ground	10 kΩ or higher

   4. Reconnect the OCV connector.
   5. Reconnect the ECM connector.

   NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

   Fig 2: Identifying B43 Or B57 OCV Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE ECM