Inspection Procedure

1. Clear the DTCs after recording the freeze frame data and DTCs.
2. Allow the engine to idle and check for DTCs.
3. Check whether P0010 or P0020 is present.

   OK: 

   P0010 or P0020 is present. 

NG: CHECK FOR INTERMITTENT PROBLEMS 

OK: Go TO NEXT STEP 

1. Disconnect the OCV connector.
2. Measure the resistance between the terminals of the OCV.
   Fig 1: Measuring Resistance Between OCV Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connections	Specified Conditions
   1 - 2	6.9 to 7.9 Ω at 20°C (68°F)

3. Reconnect the OCV connector.

NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY  (See ON-VEHICLE INSPECTION  )

OK: Go TO NEXT STEP 

1. Disconnect the B3 ECM connector.
2. Disconnect the B12 or B26 OCV connector.
   Fig 2: Identifying B3 ECM Connector & B12 Or B26 OCV Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the resistance.

   Standard Resistance for Bank 1 

   STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connections	Specified Conditions
   B12-1-OC1+ (B3-17)	Below 1 Ω
   B12-1 - Body ground	10 kΩ or higher
   B12-2-OC1 - (B3-16)	Below 1 Ω
   B12-2 - Body ground	10 kΩ or higher

   Standard Resistance for Bank 2 

   STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connections	Specified Conditions
   B26-1 - OC2+ (B3-15)	Below 1 Ω
   B26-1 - Body ground	10 kΩ or higher
   B26-2 - OC2- (B3-14)	Below 1 Ω
   B26-2 - Body ground	10 kΩ or higher

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

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ECM  (See REMOVAL  )