SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P045011, P045015, P04502A, P04502F

DTC SUMMARY

DESCRIPTION

The description can be found in EVAP (Evaporative Emission) System.

Click here

MONITOR DESCRIPTION

1. DTC P045011: Canister pressure sensor voltage low

   If the canister pressure sensor voltage output (pressure) is less than 0.45 V: 42.11 kPa(abs) [6.11 psi(abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (1 trip detection logic).

2. DTC P045015: Canister pressure sensor voltage high

   If the canister pressure sensor voltage output (pressure) is higher than 4.9 V: 123.761 kPa(abs) [17.95 psi(abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (1 trip detection logic).

3. DTC P04502A: Canister pressure sensor abnormal voltage being constant

   If the sensor voltage output does not change for 2 minutes, the ECM interprets this as the sensor being stuck, and stops the monitor. The ECM will illuminate the MIL and store this DTC (2 trip detection logic).

4. DTC P04502F: Canister pressure sensor abnormal voltage fluctuation

   If the canister pressure sensor voltage output fluctuates rapidly for 10 seconds, the ECM stops the EVAP system monitor. The ECM interprets this as the canister pressure sensor voltage fluctuating, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (2 trip detection logic).

MONITOR STRATEGY

CONFIRMATION DRIVING PATTERN

• Note

  
  

  • The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

  • Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

  • Do not run the engine during this operation.

  • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).

  
  

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.

  4. Check that the intake air temperature is between 4.4 and 50°C (40 and 122°F).

  5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  6. Turn the engine switch off and wait for at least 30 seconds.

  7. Turn the engine switch on (IG) and turn the GTS on.

  8. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.

  9. After the Evaporative System Check is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.

  10. Input the DTC: P045011, P045015, P04502A or P04502F.

  11. 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.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CONFIRM DTC AND EVAP PRESSURE

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG) (do not start the engine).

   3. Turn the GTS on.

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

   5. Read the DTCs.

      
      Powertrain > Engine > Trouble Codes

   6. Enter the following menus: Powertrain / Engine / Data List / Vapor Pressure Pump.

      
      Powertrain > Engine > Data List

      Tester Display
      Vapor Pressure Pump

   7. Read the EVAP (Evaporative Emission) pressure displayed on the GTS.

      Result

      Display (DTC Output) Test Result Suspected Trouble Area Proceed to P045011 Less than 42.11 kPa(abs) [6.11 psi(abs)] Wire harness or connector (canister pressure sensor - ECM) Canister pressure sensor Short in ECM circuit A P045015 Higher than 123.761 kPa(abs) [17.95 psi(abs)] Wire harness or connector (canister pressure sensor - ECM) Canister pressure sensor Open in ECM circuit B P04502A P04502F - Canister pressure sensor C

   
   

   B

   CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Click here

   C

   GO TO EVAP SYSTEM Click here

   A

2. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

   
   

   1. Disconnect the ECM connector.

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

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to A37-36 (PPMP) - Body ground Always Below 10 Ω Wire harness or connector (canister pressure sensor - ECM) Short in canister pressure sensor circuit A 10 kΩ or higher Wire harness or connector (canister pressure sensor - ECM) Short in ECM circuit B

   
   

   B

   REPLACE ECM Click here

   A

3. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

   
   

   1. Disconnect the canister pump module connector.

   2. Disconnect the ECM connector.

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

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to A37-36 (PPMP) - Body ground Always 10 kΩ or higher Short in canister pressure sensor circuit A Below 10 Ω Short in wire harness or connector (canister pressure sensor - ECM) B

   
   

   A

   GO TO STEP 6 Click here

   B

   GO TO STEP 7 Click here

4. REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   GO TO STEP 8 Click here

5. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

   

   *a	Front view of wire harness connector (to Canister Pump Module)

   
   

   1. Disconnect the canister pump module connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition R14-8 (SGND) - Body ground Always 100 Ω or less

   3. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition R14-6 (VCC) - Body ground Engine switch on (IG) 4.5 to 5.5 V R14-7 (VOUT) - Body ground Engine switch on (IG) 4.5 to 5.5 V

      Result
      Test Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in canister pressure sensor circuit A Voltage and/or resistance outside standard ranges Open in wire harness or connector (canister pressure sensor - ECM) B

   
   

   B

   REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM) Click here

   A

6. REPLACE CANISTER PUMP MODULE

   
   

   1. Replace the canister pump module.

      Click here

      Note

      
      

      • When replacing the canister pump module, check the canister pump module interior, canister interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior, replace the canister and canister pump module together.

      • Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace the canister and canister pump module together.

      • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.

      

      *1	Fuel Tank Vent Hose	*2	Vent Hose
      *3	Air Inlet Port	*4	Fuel Tank
      *5	Canister Pump Module	*6	Canister
      *7	Canister Filter	*8	No. 1 Charcoal Canister Filter
      *9	Fuel Tank Cap	-	-
      *a	Inspection Area (check for disconnection and/or cracks)	-	-

      Result
      Proceed to NEXT

   
   

   NEXT

   GO TO STEP 8 Click here

7. REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM)

   
   

   1. Repair or replace the harness or connector (canister pump module - ECM).

      Result
      Proceed to NEXT

   
   

   NEXT

8. CHECK WHETHER DTC OUTPUT RECURS (DTC P045011 OR P045015)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Clear the DTCs.

      
      Powertrain > Engine > Clear DTCs

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

   6. Turn the engine switch on (IG).

   7. Turn the GTS on.

   8. Perform the Evaporative System Check using the GTS, referring to Confirmation Driving Pattern.

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

      
      Powertrain > Engine > Utility

      Tester Display
      All Readiness

   10. Input the DTC: P045011 or P045015.

   11. 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

       Result
       Proceed to NEXT

   
   

   NEXT

   END