Inspection Procedure

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch ON.
3. Turn the tester ON.
4. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
5. Read DTCs.

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   P011B	A
   P011B and other DTCs	B

   HINT:

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

B: GO TO DTC CHART  (See DIAGNOSTIC TROUBLE CODE CHART  )

A: Go to next step 

1. Leave the vehicle for 7 hours or more.

   HINT:

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

2. Connect a Techstream to the DLC3.
3. Turn the ignition switch to ON.
4. Turn the tester ON.
5. Select the following menu items: Powertrain / Engine and ECT / All Data / Intake Air.
6. Read the value displayed on the tester.

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

   HINT:

   Temperature readings on the vehicle's outside temperature gauge (if equipped) are not suitable for comparing to the IAT reading. The outside temperature gauge has a significant delay built in to prevent temperature swings from being displayed on its display.

   Use an accurate thermometer to determine the outside air temperature.

NG: REPLACE MASS AIR FLOW METER  (See REMOVAL  )

OK: Go to Next Step 

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch ON.
3. Turn the tester ON.
4. Select the following menu items: Powertrain / Engine and ECT / All Data / Coolant Temp.
5. Read the value displayed on the tester.

   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 if there are heat sources such as a block heater in the engine compartment.

NG: REPLACE ENGINE COOLANT TEMPERATURE SENSOR  (See REMOVAL  )

OK: REPLACE ECM  (See REMOVAL  )