Inspection Procedure

HINT:

Read freeze frame data using the 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 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. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P011B) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Enter the following menus: Powertrain/Engine/Trouble Codes.
   5. Read the DTCs.

      Result 

      RESULT CHART
      
      

      Result	Proceed to
      DTC P011B is output	A
      DTC P011B and other DTCs are output	B

      HINT:

      If any DTCs other than P011B are output, troubleshoot those DTCs first.

      B:  GO TO DTC CHART

      A: Go to next step 

2. READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) 
   1. Leave the vehicle for 7 hours or more.

      HINT:

      It is necessary to leave the vehicle for 7 hours or more to create conditions similar to the DTC detection conditions.

   2. Connect the Techstream to the DLC3.
   3. Turn the ignition switch to ON.
   4. Turn the Techstream on.
   5. Enter the following menus: Powertrain/Engine/Data List/All Data/Intake Air.
   6. Read the value displayed on the Techstream.

      OK: 

      Difference between the intake air temperature and the actual outside air temperature is within 10°C (18°F). 

      HINT:

      Temperature readings on the outside temperature gauge of the vehicle (if equipped) are not suitable for comparing to the intake air temperature reading. The outside temperature gauge has a significant delay built in to prevent swings in the temperature display. Use an accurate thermometer to determine the outside air temperature.

      NG: REPLACE MASS AIR FLOW METER  (See REMOVAL )

      OK: Go to next step 

3. READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Enter the following menus: Powertrain/Engine/Data List/All Data/Coolant Temp.
   5. Read the value displayed on the Techstream.

      OK: 

      The difference between the coolant temperature and the actual outside air temperature is within 10°C (18°F). 

      HINT:

      If the result is not as specified, check that there are no heat sources such as a block heater in the engine compartment.

      NG: REPLACE ENGINE COOLANT TEMPERATURE SENSOR  (See REMOVAL )

      OK: REPLACE ECM  (See REMOVAL )