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

1. Connect Techstream to the DLC3.
2. Start the engine and turn the tester on.
3. Warm up the engine.
4. Select the following menu items: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2).
5. Check the engine speed while operating the oil control valve using the tester.

   OK

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

NG → See step   2 

OK → CHECK FOR INTERMITTENT PROBLEMS 

1. Disconnect the intake camshaft timing oil control valve connector.
   Fig 1: Measuring Resistance Between Terminals Of OCV

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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

3. Reconnect the camshaft timing oil control valve connector.

NG → REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 

OK: Go to next step 

1. Disconnect the E18 or E11 OCV connector.
2. Disconnect the E3 or E5 ECM connectors.
3. Measure the resistance.
   Fig 2: Identifying Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance (check for open)

   Tester Connection	Specified Condition
   E18-1 - OC1+ (E3-34)	Below 1 Ω
   E18-2 - OC1- (E3-33)	Below 1 Ω
   E11-1 - OC2+ (E5-9)	Below 1 Ω
   E11-2 - OC2- (E5-8)	Below 1 Ω

   Standard resistance (check for short)

   Tester Connection	Specified Condition
   E18-1 or OC1+ (E3-34) - Body ground	10 kΩ or higher
   E18-2 or OC1- (E3-33) - Body ground	10 kΩ or higher
   E11-1 or OC2+ (E5-9) - Body ground	10 kΩ or higher
   E11-2 or OC2- (E5-8) - Body ground	10 kΩ or higher

4. Reconnect the OCV and ECM connectors.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (OCV - ECM) 

OK → REPLACE ECM