Inspection Procedure

HINT:

Read freeze frame data using Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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. INSPECT CAMSHAFT POSITION SENSOR (RESISTANCE) 
   1. Disconnect the B6 Camshaft Position (CMP) sensor connector.
   2. Measure the resistance between terminals 1 and 2.

      Standard resistance 

      RESISTANCE SPECIFICATION
      
      

      Tester Connections	Conditions	Specified Conditions
      1-2	Cold	1,630 to 2,740 Ω
      1-2	Hot	2,065 to 3,225 Ω

      Fig 1: Identifying CMP Sensor Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      Terms cold and hot refer to the temperature of the sensor. Cold means approximately -10° to 50°C (14° to 122°F). Hot means approximately 50° to 100°C (122° to 212°F).

   3. Reconnect the CMP sensor connector.

   NG: REPLACE CAMSHAFT POSITION SENSOR 

   OK: Go to Next Step 

2. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM) 
   1. Disconnect the B6 CMP sensor connector.
   Fig 2: Identifying CMP Sensor And ECM Connector Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Disconnect the B30 ECM connector.
   3. Measure the resistance.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFICATION
      
      

      Tester Connections	Specified Conditions
      B6-1 (G2+) - B30-99 (G2+)	Below 1 Ω
      B6-2 (G2-) - B30-98 (G2-)	Below 1 Ω

      Standard resistance (Check for short) 

      RESISTANCE SPECIFICATION
      
      

      Tester Connections	Specified Conditions
      B6-1 (G2+) or B30-99 (G2+) - Body ground	10 kΩ or higher
      B6-2 (G2-) or B30-98 (G2-) - Body ground	10 kΩ or higher

   4. Reconnect the ECM connector.
   5. Reconnect the CMP sensor connector.

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to Next Step 

3. CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR) 
   1. Check the CMP sensor installation.

      OK: 

      Sensor is installed correctly. 

      Fig 3: Identifying Installation Position Of Camshaft Position Sensor

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: SECURELY REINSTALL SENSOR 

   OK: Go to Next Step 

4. CHECK VALVE TIMING  (See INSPECTION PROCEDURE  )

   NG: ADJUST VALVE TIMING 

   OK: Go to Next Step 

5. CHECK CAMSHAFT 
   1. Check the teeth of the camshaft.

      OK: 

      Camshaft teeth do not have any cracks or deformation. 

   NG: REPLACE CAMSHAFT 

   OK: Go to Next Step 

6. REPLACE CAMSHAFT POSITION SENSOR 
7. CHECK WHETHER DTC OUTPUT RECURS 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON.
   3. Turn the tester ON.
   4. Clear DTCs (see DTC CHECK / CLEAR  ).
   5. Start the engine.
   6. Select the following menu items: Powertrain / Engine and ECT / Trouble Code.
   7. Read DTCs.

      Result 

      RESULT REFERENCE
      
      

      Display (DTC Output)	Proceed To
      No output	A
      P0340	B

      HINT:

      If the engine does not start, replace the ECM.

   B: REPLACE ECM 

   A: END