Inspection Procedure

HINT:

Read freeze frame data using Techstream. 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. INSPECT INTAKE MANIFOLD (SCV OPERATION) 
   1. Inspect the swirl control valve (See ON-VEHICLE INSPECTION ).

   NG: REPLACE INTAKE MANIFOLD 

   OK: Go to Next Step 

2. CHECK HARNESS AND CONNECTOR (ECM - SCV) 
   1. Disconnect the E6 ECM connector.
   2. Disconnect the E53 DC motor for SCV connector.
   3. Measure the resistance according to the value (s) in the table below.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFICATION CHART
      
      

      Tester Connection	Specified Condition
      IA1- (E6-1) - E53-2	Below 1 0
      IA1+ (E6-2) - E53-1	Below 1 Ω

      Standard resistance (Check for short) 

      RESISTANCE SPECIFICATION CHART
      
      

      Tester Connection	Specified Condition
      IA1- (E6-1) or E53-2 - Body ground	10 kΩ or higher
      IA1+ (E6-2) or E53-1 - body ground	10 kΩ or higher

   4. Reconnect the ECM connector.
   5. Reconnect the DC motor for SCV connector.
   Fig 1: Identifying E6 ECM Connector And E53 DC Motor For SCV Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to Next Step 

3. CHECK WHETHER DTC OUTPUT RECURS (DTC P2009 OR P2010) 
   1. Connect Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the tester on.
   4. Clear DTCs.
   5. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   6. Read DTCs.

   Result 

   RESULT CHART
   
   

   Display (DTC Output)	Proceed to
   P2009 or P2010	A
   No DTC	B

   B: CHECK FOR INTERMITTENT PROBLEMS 

   A: REPLACE ECM