Engine Control (Sfi) System (Diagnostic Codes (P2102-U0293) & Circuit Tests) (Except Phv): Other Toyota Prius III

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

ALL

P2102

P2103

TYPICAL MALFUNCTION THRESHOLDS

P2102

P2103

Scheme 217

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine.
8. With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
9. Check that 16 seconds or more have elapsed from the instant when the accelerator pedal is first depressed.
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
11. Read the DTC [C].
12. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
13. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
14. Input the DTC: P2102 or P2103.
15. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
16. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
17. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
18. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FAIL-SAFE

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 5.5° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

Scheme 218

ALL

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

Scheme 219

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the DTC [B].
10. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2111 or P2112.
13. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal quickly.
14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
16. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 5.5° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

PROCEDURE

1. INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body assembly. And check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 3 OK: Go to next step
2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve). Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P2111 or P2112 is output B B --> See step 4 A --> See step 5
3. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-393185-S27458206012011040700000)
4. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)
5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-393183-S06096913442011040700000)

COMPONENT OPERATING RANGE

Scheme 220

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine.
8. Slowly depress the accelerator pedal, raise the engine speed to approximately 2500 rpm for approximately 5 seconds, and then idle the engine [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [C].
11. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P2118.
14. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] again.
15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
16. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
17. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC or other DTCs relating to electronic throttle control system malfunctions, are stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 5.5° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

Scheme 221

Scheme 222

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine.
8. Idle the engine for 20 seconds.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [B].
11. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P2119.
14. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal 3 times.
15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
16. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
17. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 5.5° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

ALL

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196)

SENSOR CURRENT DETECTION MONITOR (P2195, P2196)

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196)

SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195)

SENSOR CURRENT DETECTION MONITOR (LOW SIDE MALFUNCTION P2196)

MONITOR RESULT

Refer to Checking Monitor Status . Refer to CHECKING MONITOR STATUS .

Scheme 223

CONFIRMATION DRIVING PATTERN

HINT

This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.

Scheme 224

Scheme 225

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
5. Turn the power switch off and wait for 30 seconds.
6. Turn the power switch on (IG) and turn the Techstream on.
7. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
8. Start the engine, and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
9. On the Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine and ECT / Data List / All Data / Idle Fuel Cut.
10. Drive the vehicle at between 47 and 75 mph (75 and 120 km/h) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
11. Move the shift lever in B [C].
12. Accelerate the vehicle to 47 mph (75 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D].
13. Soon after performing step [D] above, release the accelerator pedal for at least 8 seconds without depressing the brake pedal in order to execute fuel-cut control [E]. HINT: Fuel-cut is performed when the following conditions are met: Accelerator pedal is fully released. Engine speed is 2500 rpm or more (fuel injection returns at 1000 rpm).
14. Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h).
15. Repeat steps [C] through [E] above at least 3 times in one driving cycle.
16. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
17. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
18. Read the pending DTC [F].
19. If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
20. Input the DTC: P2195 or P2196.
21. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [E].
22. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
23. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
24. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P2237 AND P2238

OTHER

P2237 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-)

P2238 (AIR FUEL RATIO SENSOR LOW IMPEDANCE)

OTHER

P2237 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-)

P2238 (AIR FUEL RATIO SENSOR LOW IMPEDANCE)

P2238 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND GND)

P2239 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND +B)

P2252 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A- AND GND)

P2253 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A- AND +B)

P2238 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND A1A-)

Scheme 226

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine and wait 2 minutes.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
9. Read the pending DTC [B].
10. If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2237, P2238, P2239, P2252 or P2253.
13. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 3 minutes.
14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Check the judgment result [C]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
16. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D24-1 (HA1A) - D28-18 (HA1A) Always Below 1 ohms D24-3 (A1A+) - D28-103 (A1A+) D24-4 (A1A-) - D28-126 (A1A-) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D24-1 (HA1A) or D28-18 (HA1A) - Body ground Always 10 kohms or higher D24-3 (A1A+) or D28-103 (A1A+) - Body ground D24-4 (A1A-) or D28-126 (A1A-) - Body ground Callouts For see scheme 22 *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Front view of wire harness connector (to ECM) Reconnect the air fuel ratio sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
2. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-393185-S15352357012011040700000). NEXT: Go to next step
3. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the Pending DTCs. Result Result Proceed to DTC is not output A DTC P2237, P2238, P2239, P2252 or P2253 is output B B --> See step 5 A --> END
5. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)

Refer to CHECKING MONITOR STATUS .

Scheme 227

Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more 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 below 35°C (95°F).

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [A].
7. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
8. Read the pending DTC [B].
9. If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2420.
12. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B].
13. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
14. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
15. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

ALL

CASE 1

CASE 2

CASE 3

CASE 1

CASE 2

CASE 3

Scheme 228

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine.
8. Idle the engine for 10 minutes or more [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [C].
11. If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P2610.
14. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
16. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
17. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. REPLACE ECM Replace the ECM . Refer to «REMOVAL»(ref-393185-S12311789002011040700000) . NEXT: Go to next step
2. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine and wait for 10 minutes or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. If no pending DTC is displayed, the repair has been successfully completed. NEXT --> END

ALL

P261B: ENGINE COOLANT PUMP CIRCUIT PERFORMANCE

P261C, P261D: ENGINE COOLANT PUMP CIRCUIT RANGE CHECK (LOW VOLTAGE, HIGH VOLTAGE)

P261B: ENGINE COOLANT PUMP CIRCUIT PERFORMANCE

P261C: ENGINE COOLANT PUMP CIRCUIT RANGE CHECK (LOW VOLTAGE)

P261D: ENGINE COOLANT PUMP CIRCUIT RANGE CHECK (HIGH VOLTAGE)

Scheme 229

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
7. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) [B].
8. Idle the engine for 20 seconds or more [C].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [D].
11. If the DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P261B, P261C or P261D.
14. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] again.
15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
16. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
17. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 230

HINT

This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.

Performing this confirmation pattern will activate the air fuel ratio sensor response monitor.

Scheme 231

1. Connect the Techstream to the DLC3.
2. Turn the power switch on ((IG).
3. Turn the Techstream on.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
5. Turn the power switch off and wait for 30 seconds.
6. Turn the power switch on (IG) and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor.
8. Check that the Status2 of O2 Sensor is Incomplete.
9. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
10. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) [A].
11. Drive the vehicle at a constant speed of between 47 and 62 mph (75 and 100 km/h) for 10 minutes [B].
12. Those items will change to Complete after completing the drive pattern.
13. If the values indicated on the Techstream do not change, perform Readiness Monitor Drive Pattern for the air fuel ratio sensor and heated oxygen sensor . Refer to «READINESS MONITOR DRIVE PATTERN»(ref-393183-S34545196722011040700000) .
14. Check the monitor result values on the Techstream by entering the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor / Details / RANGE B1S1.
15. Note the value of the Monitor Result.
16. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
17. Read the pending DTC [C].
18. If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
19. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
20. Input the DTC: P2A00.
21. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] again.
22. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
23. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
24. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Refer to CHECKING MONITOR STATUS .

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2A00) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2A00 is output A DTC P2A00 and other DTCs are output B HINT: If any DTCs other than P2A00 are output, troubleshoot those DTCs first. B --> See step 13 A: Go to next step
2. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE). Refer to «PROCEDURE - Step 1»(ref-393191-S40156660062011040700000) NG --> See step 14 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
4. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2A00) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the Pending DTCs. Result Result Proceed to DTC P2A00 is output A DTC is not output B B --> See step 15 A: Go to next step
6. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor . Refer to «REMOVAL»(ref-393185-S15352357012011040700000) . NEXT: Go to next step
7. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P2A00) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the Pending DTCs. Result Result Proceed to DTC P2A00 is output A DTC is not output B B --> END A: Go to next step
9. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position when Throttle Idle Position is ON in Data List. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. Result Result Proceed to Outside of standard range A Within standard range B B --> See step 11 A: Go to next step
10. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly . Refer to «REMOVAL»(ref-393178-S00297409822011040700000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly . Refer to «INSTALLATION»(ref-393178-S33053900042011040700000) . NG --> See step 16 OK: Go to next step
11. REPLACE ECM Replace the ECM . Refer to «REMOVAL»(ref-393185-S12311789002011040700000) . NEXT: Go to next step
12. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTC . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2A00. Check the DTC judgment result. NEXT --> END
13. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-393183-S20320380732011040700000)
14. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-393185-S15352357012011040700000)
15. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-393183-S06096913442011040700000)
16. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-393178-S00297409822011040700000)

P3190

P3191

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P3190, P3191 AND/OR P3193) Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P3190, P3191 and/or P3193 are output A DTC P3190, P3191 and/or P3193, and other DTCs are output B HINT: If any other codes besides P3190, P3191 and/or P3193 are output, perform troubleshooting for those DTCs first. B --> See step 19 A: Go to next step
2. CHECK ANY OTHER DTC OUTPUT BY HYBRID CONTROL SYSTEM Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC is not output A Hybrid control system DTC is output B B --> See step 20 A: Go to next step
3. CHECK SHORTAGE OF FUEL NG --> REFILL FUEL OK: Go to next step
4. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks . Refer to «ON-VEHICLE INSPECTION»(ref-393188-S17081193942011040700000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
5. CHECK FOR UNUSUAL NOISE OR VIBRATION WHEN STARTING ENGINE OR REVVING UP OK Unusual noise and vibration do not occur. NG --> REPAIR OR REPLACE MALFUNCTIONING PART OK: Go to next step
6. CHECK FUEL PRESSURE Check the fuel pressure . Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-393193-S00724245252011040700000) . NG --> See step 18 OK: Go to next step
7. INSPECT FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT Trouble Codes / Freeze Frame Data. Calculate the requested torque* and compare it with Actual Engine Torque. HINT: *: The requested torque is calculated by putting "Requested Engine Torque" and "HV Target Engine Speed" from the freeze frame data into the following formula: Requested torque = Requested Engine Torque (kW) / HV Target Engine Speed (rpm) x 6112 Standard Actual Engine Torque is 60% or more of the request torque. Result Result Proceed to NG A OK B B --> See step 9 A: Go to next step
8. INSPECT THROTTLE BODY ASSEMBLY Inspect the throttle body assembly . Refer to «ON-VEHICLE INSPECTION»(ref-393185-S13576917312011040700000) . NG --> See step 24 OK: Go to next step
9. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly . Refer to «ON-VEHICLE INSPECTION»(ref-393185-S14355653952011040700000) . NG --> See step 21 OK: Go to next step
10. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor . Refer to «INSPECTION»(ref-393185-S12298734072011040700000) . NG --> See step 22 OK: Go to next step
11. INSPECT CRANKSHAFT POSITION SENSOR Inspect the crankshaft position sensor . Refer to «INSPECTION»(ref-393185-S33106366432011040700000) . NG --> See step 23 OK: Go to next step
12. REPLACE CAMSHAFT POSITION SENSOR Replace the camshaft position sensor . Refer to «REMOVAL»(ref-393185-S22544630162011040700000) . NEXT: Go to next step
13. CHECK WHETHER DTC OUTPUT RECURS (DTC P3190, P3191 OR P3193) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTC . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . Turn the power switch off. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine. Allow the engine to idle for 10 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to P3190, P3191 or P3193 is output A DTC is not output B B --> END A: Go to next step
14. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position when Throttle Idle Position is ON in Data List. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. Result Result Proceed to Outside of standard range A Within standard range B B --> See step 16 A: Go to next step
15. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly . Refer to «REMOVAL»(ref-393178-S00297409822011040700000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly . Refer to «INSTALLATION»(ref-393178-S33053900042011040700000) . NG --> See step 26 OK: Go to next step
16. REPLACE ECM Replace the ECM . Refer to «REMOVAL»(ref-393185-S12311789002011040700000) . NEXT: Go to next step
17. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTC . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Start the engine. Allow the engine to idle for 10 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P3190, P3191 or P3193. Check the DTC judgment result. NEXT --> END
18. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 25
19. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-393183-S20320380732011040700000)
20. GO TO HYBRID CONTROL SYSTEM (DTC CHART). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393053-S23011133212011040700000)
21. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-393185-S21730933332011040700000)
22. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-393185-S16232441422011040700000)
23. REPLACE CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-393185-S02791513612011040700000)
24. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-393185-S27458206012011040700000)
25. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-393187-S39217571512011040700000)
26. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-393178-S00297409822011040700000)

Scheme 232

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) .
4. Turn the power switch off and wait for 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on.
6. Wait 5 seconds or more [A].
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the DTC [B].
9. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: U0293.
12. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] again.
13. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
14. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
15. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs . Refer to «DTC CHECK / CLEAR»(ref-393183-S13119469612011040700000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 233

RELATED DTCS

If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.

Scheme 234

Note. If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.

Scheme 235

HINT

The canister pressure sensor, the leak detection pump and the vent valve are built into the canister pump module.

Scheme 236

Note. In this vehicle's EVAP system, turning on the vent valve does not seal off the EVAP system. To check for leaks in the EVAP system, disconnect the air inlet vent hose and apply pressure from the atmospheric side of the canister.

While the engine is running, if a predetermined condition (closed-loop, etc.) is met, the purge VSV is opened by the ECM and stored fuel vapors in the canister are purged into the intake manifold. The ECM changes the duty cycle of the purge VSV to control purge flow volume.

The purge flow volume is also determined by the intake manifold pressure. Atmospheric pressure is allowed into the canister through the vent valve to ensure that the purge flow is maintained when negative pressure (vacuum) is applied to the canister.

The following two monitors run to confirm the appropriate EVAP system operation.

Scheme 237

Scheme 238

Scheme 239

Scheme 240

1. Key-off monitor This monitor checks for EVAP (evaporative emission) system leaks and canister pump module malfunctions. The monitor starts 5 hours* after the power switch is turned off. At least 5 hours are required for the fuel to cool down to stabilize the EVAP pressure, thus making the EVAP system monitor more accurate. The leak detection pump creates negative pressure (vacuum) in the EVAP system and the pressure is measured. Finally, the ECM monitors for leaks from the EVAP system, and malfunctions in both the canister pump module and purge VSV based on the EVAP pressure. HINT: *: If the engine coolant temperature is not below 35°C (95°F) 5 hours after the power switch is turned off, the monitor check starts 2 hours later. If it is still not below 35°C (95°F) 7 hours after the power switch is turned off, the monitor check starts 2.5 hours later.
2. Purge flow monitor The purge flow monitor consists of the 2 monitors. The 1st monitor is conducted every time and the 2nd monitor is activated if necessary. The 1st monitor While the engine is running and the purge VSV (Vacuum Switching Valve) is on (open), the ECM monitors the purge flow by measuring the EVAP pressure change. If negative pressure is not created, the ECM begins the 2nd monitor. The 2nd monitor The vent valve is turned off (open) and the EVAP pressure is measured. If the variation in the pressure is less than 0.15 kPa (1.13 mmHg), the ECM interprets this as the purge VSV being stuck closed, and illuminates the MIL and sets DTC P0441 (2 trip detection logic). Atmospheric pressure check: In order to ensure reliable malfunction detection, the variation between the atmospheric pressures, before and after the purge flow monitor, is measured by the ECM. *1 EVAP Purge Flow *2 to Intake Manifold *3 ECM *4 Soak Timer *5 Purge VSV (on) *6 Fuel Cap *7 Canister Filter *8 Fuel Tank *9 Leak Detection Pump (off) *10 Canister Pressure Sensor *11 Reference Orifice (0.02 inch) *12 Vent Valve (off) *13 Canister Pump Module *14 Canister *15 No. 2 Canister Filter - - Component Operation Canister Contains activated charcoal to absorb EVAP (evaporative emissions) generated in fuel tank. Cut-off valve Located in fuel tank. Valve floats and closes when fuel tank is 100% full. Purge VSV (Vacuum Switching Valve) Opens or closes line between canister and intake manifold. ECM uses purge VSV to control EVAP purge flow. In order to discharge EVAP absorbed by canister to intake manifold, ECM opens purge VSV. EVAP discharge volume to intake manifold controlled by purge VSV duty cycle (current-carrying time) (Open: on; Closed: off). Soak timer Built into ECM. To ensure accurate EVAP monitor, measures 5 hours (+/-15 min) after power switch is turned off. This allows fuel to cool down, stabilizing EVAP pressure. When approximately 5 hours elapsed, ECM activates see scheme 3 Canister pump module Consists of (a) to (d) below. Canister pump module cannot be disassembled. (a) Vent valve Vents and closes EVAP system. When ECM turns valve on, EVAP system is closed. When ECM turns valve off, EVAP system is vented. Negative pressure (vacuum) is created in EVAP system to check for EVAP leaks by closing purge VSV, turning on vent valve (closing it) and operating leak detection pump (Scheme 217) (b) Canister pressure sensor Indicates pressure as voltage. ECM supplies regulated 5 V to canister pressure sensor, and uses feedback from sensor to monitor EVAP system pressure (Scheme 218) (c) Leak detection pump Creates negative pressure (vacuum) in EVAP system for leak check. (d) Reference orifice Has opening with 0.02 inch diameter. Vacuum is produced through orifice by closing purge VSV, turning off vent valve and operating leak detection pump to monitor reference pressure. Reference pressure indicates small leak of EVAP. *1 Canister Pump Module (Scheme 217) *2 Airflow *3 Condition: Purge Flow *4 Condition: Leak Check *5 Vent Valve: off (vent) *6 to Canister Filter (Atmosphere) *7 Canister *8 Reference Orifice (0.02 Inch) *9 Canister Pressure Sensor *10 Leak Detection Pump: off *11 Vent Valve: on (closed) *12 Leak Detection Pump: on

Scheme 241

HINT

After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.

1. KEY-OFF MONITOR CONFIRMATION Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway). The fuel tank is less than 90% full. The altitude is less than 7875 ft. (2400 m). The engine coolant temperature is between 4.4°C and 35°C (40°F and 95°F). The intake air temperature is between 4.4°C and 35°C (40°F and 95°F). The vehicle remains stationary (the vehicle speed is 0 mph [0 km/h]). Monitor Conditions Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Allow the engine to idle for at least 5 minutes. Turn the power switch off and wait for 6 hours (8 or 10.5 hours). HINT: Do not start the engine until checking Monitor Status. If the engine is started, the steps described above must be repeated. Monitor Status Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor did not complete. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
2. PURGE FLOW MONITOR CONFIRMATION (P0441) HINT: Perform this monitor confirmation after the Key-Off Monitor Confirmation shows Complete. Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway). The engine coolant temperature is between 4.4°C and 35°C (40°F and 95°F). The intake air temperature is between 4.4°C and 35°C (40°F and 95°F). Monitor Conditions Release the pressure from the fuel tank by removing and reinstalling the fuel cap. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) . Warm the engine up until the engine coolant temperature reaches more than 75°C (167°F). Increase the engine speed to 2500 rpm once. Allow the engine to idle and turn the A/C switch on for 1 minute. Monitor Status Turn the power switch off (if on (IG) or if the engine is running). Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor did not complete. Make sure that the preconditions have been met, and perform the Monitor Conditions again.

Refer to Checking Monitor Status . Refer to CHECKING MONITOR STATUS .