SFI SYSTEM, Diagnostic DTC:P0107, P0108

DESCRIPTION

Manifold absolute pressure sensor uses a built-in sensor to detect the intake manifold pressure as a voltage. Additionally, because this measures the absolute pressure as the pressure within the intake manifold without detecting the atmospheric pressure as a standard value, this enables measurements without being influenced by changes in atmospheric pressure from altitude or other causes.

MONITOR DESCRIPTION

The ECM calculates the manifold absolute pressure based upon the manifold absolute pressure sensor output voltage. If the manifold absolute pressure output voltage is outside the normal range, there may be an abnormality with the manifold absolute pressure, or an open or short in the circuit. In these cases, the ECM will light the check engine warning light, and store the DTC.

CONFIRMATION DRIVING PATTERN

1. 

2. Connect the GTS to the DLC3.

3. Turn the ignition switch to ON and turn the GTS on.

4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation) Click here.

5. Turn the ignition switch off and wait for at least 30 seconds.

6. Turn the ignition switch to ON and turn the GTS on.

7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

8. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of between 2500 and 3000 rpm for 40 seconds or more [A].

9. Drive the vehicle at 10 km/h (6.25 mph) or more for 1 minute or more [B].

   CAUTION:

   When performing the confirmation driving pattern, obey all speed limits and traffic laws.

10. Enter the following menus: Powertrain / Engine / Trouble Codes.

11. Read pending DTCs.

    Tech Tips

    
    

    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

12. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

13. Input the DTC: P0107 or P0108.

14. Check the DTC judgment result.

    GTS Display	Description
    NORMAL	DTC judgment completed System normal
    ABNORMAL	DTC judgment completed System abnormal
    INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
    N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips

    
    

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

15. If the test result is INCOMPLETE or N/A and no DTC is output, perform a universal trip and check for permanent DTCs Click here.

    Tech Tips

    
    

    • If a permanent DTC is output, the system is malfunctioning.

    • If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS (MAP)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Powertrain / Engine / Data List / MAP.

   5. Read the value displayed on the GTS.

      Standard
      Nearly equal to atmosphere pressure

      Reference Value

      Condition	MAP
      Ignition switch ON	80 to 110 kPa

      Tech Tips

      Standard atmospheric pressure is 101 kPa (758 mmHg). For every 100 m (328 ft) increase in altitude, pressure drops by 1 kPa. This varies by weather.

   
   

   OK

   CHECK INTERMITTENT PROBLEMS Click here

   NG

2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)

   

   Text in Illustration

   *a	Front view of wire harness connector (to Manifold Absolute Pressure Sensor)

   
   

   1. Disconnect the manifold absolute pressure sensor connector.

   2. Turn the ignition switch to ON.

   3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition C18-3 (VC) - C18-1 (E2) Ignition switch ON 4.5 to 5.5 V C18-2 (PIM) - C18-1 (E2) Ignition switch ON 4.0 to 5.0 V

   
   

   NG

   CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM) Click here

   OK

3. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

   
   

   1. Replace the manifold absolute pressure sensor Click here.

   
   

   NEXT

4. PERFORM CONFIRMATION DRIVING PATTERN

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Clear the DTCs Click here.

   5. Turn the ignition switch off and wait for at least 30 seconds.

   6. Turn the ignition switch to ON and turn the GTS on.

   7. Start the engine and warm it up.

   8. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

   9. Enter the following menus: Powertrain / Engine / Trouble Codes.

   10. Read the DTC.

       Result
       Result Proceed to DTC P0107 or P0108 is output A DTC is not output B

   
   

   A

   REPLACE ECM Click here

   B

   END

5. CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

   
   

   1. Disconnect the manifold absolute pressure sensor connector.

   2. Disconnect the ECM connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for open)
      Tester Connection Condition Specified Condition A36-19 (VC) - C18-3 (VC) Always Below 1 Ω A34-20 (PIM) - C18-2 (PIM) Always Below 1 Ω A36-29 (E1) - C18-1(E2) Always Below 1 Ω

      Standard Resistance (Check for short)
      Tester Connection Condition Specified Condition A36-19 (VC) or C18-3 (VC) - Body ground Always 10 kΩ or higher A34-20 (PIM) or C18-2 (PIM) - Body ground Always 10 kΩ or higher A36-29 (E1) or C18-1 (E2) or Body ground Always 10 kΩ or higher

   
   

   OK

   REPLACE ECM Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR