Engine Control System (2AZ-FE) (Diagnostic Codes (P0010 - P0456): Other Toyota Matrix E140

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 308

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Wait 5 seconds [A].
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P0010.
9. Check the DTC judgment result [B]. 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
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 309

PROCEDURE

1. READ DTC OUTPUT Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs after recording the freeze frame data and DTC. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off. Start the engine and allow the engine to idle. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0010 A No output B B --> See step 6 A: Go to next step
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Inspect the camshaft timing oil control valve assembly. Refer to «INSPECTION»(ref-427449-S14515645152011101200000) . NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) Disconnect the camshaft timing oil control valve assembly 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 B19-1 - B29-100 (OC1+) Always Below 1 ohms B19-2 - B29-123 (OC1-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B19-1 or B29-100 (OC1+) - Body ground Always 10 kohms or higher B19-2 or B29-123 (OC1-) - Body ground Always 10 kohms or higher Reconnect the camshaft timing oil control valve assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) OK --> See step 4
4. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)
5. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY. Refer to «REMOVAL»(ref-427449-S08870001622011101200000)
6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427310-S20815739452011101200000)

ADVANCED CAMSHAFT TIMING

RETARDED CAMSHAFT TIMING

1. If the difference between the target and actual camshaft timing is greater than the specified value, the ECM operates the VVT actuator for 10 seconds by applying and releasing oil pressure.
2. Then, the ECM monitors the camshaft timing change for 10 seconds.

MONITOR RESULT

Refer to CHECKING MONITOR STATUS .

Scheme 310

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. Drive the vehicle at approximately 37 mph (60 km/h) for 10 minutes or more [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
8. Idle the engine for 3 minutes or more [D].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
10. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. 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: P0011, P0012.
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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [F] through [H].
14. Repeat the pattern of accelerating the vehicle from rest to approximately 37 mph (60 km/h) and then decelerating the vehicle 10 to 15 times [F]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Depress the accelerator pedal by a large amount.
15. Idle the engine for 3 minutes or more [G].
16. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [H].
17. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
18. Check the DTC judgment result again. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform the following procedure.
19. Perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 311

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. Idle the engine for 5 minutes or more [C].
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0016.
10. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, perform steps [E] through [G].
11. Drive the vehicle for 2 to 3 minutes [E]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Idle the engine for 5 minutes or more [F].
13. Check the DTC judgment result [G].
14. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
15. Read Pending DTCs [G]. HINT: If a pending DTC is output, the system is malfunctioning.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0016 A P0016 and other DTCs B HINT: If any DTCs other than P0016 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
2. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY) Connect the Techstream to the DLC3 Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1). Check the engine speed while operating the camshaft timing oil control valve using the Techstream. OK Techstream Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT: Refer to "Data List / Active Test" [VVT OCV Duty #1, VVT Change Angle #1]. Refer to «DATA LIST / ACTIVE TEST»(ref-427310-S19809003312011101200000) . NG --> See step 4 OK: Go to next step
3. ADJUST VALVE TIMING See step 5 NEXT --> See step 7
4. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY See step 6 NG --> See step 9 OK: Go to next step
5. INSPECT OIL CONTROL VALVE FILTER See step 7 NG --> See step 11 OK: Go to next step
6. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace camshaft timing gear assembly. Refer to «REMOVAL»(ref-427451-S08168292782011101200000) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0016) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read DTCs. Result Result Proceed to No output A P0016 B B --> See step 10 A --> END
8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
9. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY. Refer to «REMOVAL»(ref-427449-S08870001622011101200000)
10. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)
11. REPLACE OIL CONTROL VALVE FILTER. Refer to «REMOVAL»(ref-427451-S10229419802011101200000)

ALL

P0031

P0032

P0031

P0032

P0031

P0032

Scheme 312

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and idle it for 5 minutes or more [B].
7. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 3000 RPM for 1 minute [C].
8. Idle the engine for 5 minutes or more [D].
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0031 or P0032.
11. Check the DTC judgment result [E]. 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
12. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [E] again.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

ALL

P0037

P0038 (CASE 1)

P0038 (CASE 2 AND CASE 3)

P0141

HINT

When the values for the Data List item O2 Heater Curr Val B1S2 is not 0 A, the heater is on.

P0037

P0038 (CASE 1 AND CASE 2)

P0038 (CASE 3)

P0141

1. Refer to «CHECKING MONITOR STATUS»(ref-427310-S17461409372011101200000) .

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and idle it for 5 minutes or more [B].
7. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 3000 RPM for 1 minute [C].
8. Idle the engine for 5 minutes or more [D].
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0037, P0038 or P0141.
11. Check the DTC judgment result [E]. 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
12. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [E] again.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0101) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0101 A P0101 and other DTCs B HINT: If any DTCs other than P0101 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. CHECK INTAKE SYSTEM Check the intake system for vacuum leak. Refer to «ON-VEHICLE INSPECTION»(ref-427453-S18261765532011101200000) . OK No leak in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
3. CHECK PCV HOSE CONNECTIONS Check the PCV hose. OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK --> See step 5
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
5. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-427449-S21274041812011101200000)

P0102

P0103

Scheme 313

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 5 seconds [B].
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
9. Read the Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Run the engine at an engine speed of 4000 RPM or more for 5 seconds [D].
11. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
12. Read the Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
13. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
14. Input the DTC: P0102 or P0103.
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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [D] again.
16. If the no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 314

ALL

AFTER ENGINE STOP

AFTER COLD ENGINE START

AFTER ENGINE STOP

AFTER COLD ENGINE START

Scheme 315

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. Idle the engine for 5 minutes or more [C]. HINT: During steps [A] through [C], if the change in the intake air temperature is below 1°C (1.8°F), the intake air temperature sensor (mass air flow meter) is malfunctioning. It is not necessary to continue this procedure.
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0111.
10. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, perform steps [E] and [F].
11. Drive the vehicle at 25 mph (40 km/h) or more for a total of 5 minutes or more [E]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Check the DTC judgment result again [F]. HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [E] and [F] again.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0111) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0111 and other DTCs A P0111 B HINT: If any DTCs other than P0111 are output, troubleshoot those DTCs first. B --> See step 3 A --> See step 2
2. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
3. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-427449-S21274041812011101200000)

P0112

P0113

Scheme 316

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Wait 0.5 seconds or more [A].
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P0112 or P0113.
9. Check the DTC judgment result [B]. 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
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 317

P0115

P0117

P0118

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Wait 0.5 seconds or more [A].
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P0115, P0117 or P0118.
9. Check the DTC judgment result [B]. 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
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 318

ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR

ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR

ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR

ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR

Scheme 319

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp.
4. Check that the coolant temperature is 60°C (140°F) or less.
5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .
6. Turn the ignition switch off and wait for at least 30 seconds.
7. Turn the ignition switch to ON and turn the Techstream on [A].
8. Start the engine and idle it for 5 minutes or more [B]. HINT: If the engine coolant temperature does not change by 5°C (9°F) or higher, the engine coolant temperature sensor is malfunctioning. It is not necessary to continue this procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0116.
11. Check the DTC judgment result [C]. 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 INCOMPLETE or UNKNOWN, perform steps [D] and [E].
12. Drive the vehicle at 25 mph (40 km/h) or more for a total of 5 minutes or more [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: In the event of the drive pattern being interrupted (possibly due to factors such as traffic conditions), the drive pattern can be resumed.
13. Check the DTC judgment result again [E]. HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [D] and [E] again.
14. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
15. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0116 A P0116 and other DTCs B B --> See step 3 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-427457-S07355647442011101200000) . Measure the valve opening temperature of the thermostat. Standard Value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-427457-S35734134482011101200000) . NG --> See step 4 OK --> See step 5
3. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
4. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-427457-S07355647442011101200000)
5. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-427449-S10731655672011101200000)

Scheme 320

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) [A].
4. Turn the ignition switch off and wait for at least 30 seconds.
5. With the engine stopped, leave the vehicle as is for 7.5 hours or more [B].
6. Start the engine and wait 60 seconds or more [C].
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P011B.
9. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, perform steps [A] through [D] again.
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P011B) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P011B A P011B and other DTCs B HINT: If any DTCs other than P011B are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) 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. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Intake Air. 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 vehicle's outside temperature gauge (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 temperature swings from being displayed on its display. Use an accurate thermometer to determine the outside air temperature. NG --> See step 5 OK: Go to next step
3. READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / All Data / Coolant Temp. 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 if there are heat sources such as a block heater in the engine compartment. NG --> See step 7 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
5. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-427449-S21274041812011101200000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)
7. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-427449-S10731655672011101200000)

P0120, P0122, P0123, P0220, P0222, P0223, P2135

P0121

P0120

P0121

P0122

P0123

P0220

P0222

P0223

P2135 (CASE 1)

P2135 (CASE 2)

Scheme 321

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. With the vehicle stationary, fully depress and release the accelerator pedal [B].
8. Idle the engine for 2 seconds or more [C].
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0120, P0121, P0122, P0123, P0220, P0222, P0223 or P2135.
11. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, perform steps [B] and [D] again.
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
14. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FAIL-SAFE

When any of these DTCs, as well as other DTCs relating to Electronic Throttle Control System malfunctions, are set, 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 6.5° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal angle, to allow the vehicle to continue at a minimal speed. 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 ignition switch is then turned to off.

Scheme 322

Scheme 323

1. Leave the vehicle outside overnight.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp.
5. Check that the engine coolant temperature is 10°C (50°F) or less.
6. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .
7. Turn the ignition switch off and wait for at least 30 seconds.
8. Turn the ignition switch to ON and turn the Techstream on [A].
9. Start the engine.
10. After starting the engine, wait 21 minutes or more [B].
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0125.
13. Check the DTC judgment result [C]. 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
14. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
15. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0125) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0125 A P0125 and other DTCs B HINT: If any DTCs other than P0125 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-427457-S07355647442011101200000) . Check the valve opening temperature of the thermostat. Standard Value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-427457-S35734134482011101200000) . NG --> See step 5 OK: Go to next step
3. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-427457-S07355647442011101200000)
6. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-427449-S10731655672011101200000)

Scheme 324

1. Stop the engine and allow it to soak.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch ON and turn the Techstream on. [A]
4. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp and Intake Air.
5. Check if "Coolant Temp" is 56°C (133°F) or less and "Intake Air" is between 0 and 35°C (32 and 95°F).
6. Set the heater to MAX HOT with fresh air mode selected and turn the A/C off.
7. Start the engine and drive the vehicle at 50 mph (80 km/h) for 15 minutes. [B] WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Enter the following menus: Data List / Function / Snap-shot configuration / Record time / 5 min. Data capture can be started by using the target point. For example, setting the target point to an engine speed of 4000 RPM and then racing the engine, etc. to raise the engine speed to a speed of 4000 RPM or more will cause data capture to start.
8. After "Coolant Temp" stabilizes, check that "Coolant Temp" is 75°C (167°F) or higher. [C] HINT: If "Coolant Temp" is below 75°C (167°F) while driving the vehicle at 50 mph (80 km/h), inspect the cooling system and thermostat.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0128) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0128 A P0128 and other DTCs B HINT: If any DTCs other than P0128 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK: Go to next step
3. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-427457-S07355647442011101200000) . Measure the valve opening temperature of the thermostat. Standard Value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-427457-S35734134482011101200000) . NG --> See step 5 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-427457-S07355647442011101200000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)

ALL

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE AND LOW VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL CUT

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (LOW OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL-CUT

Refer to CHECKING MONITOR STATUS .

P0136, P0137 and P0138

Scheme 325

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. With the transaxle in 4th gear or higher, drive the vehicle at 37 to 75 mph (60 to 120 km/h) for 10 minutes or more [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0136, P0137 or P0138.
10. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, perform steps [C] and [D].
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P0139

Scheme 326

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. Drive the vehicle at 37 mph (60 km/h), and then decelerate the vehicle by releasing the accelerator pedal for 5 seconds or more to perform the fuel cut [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0139.
10. Check the DTC judgment result [D]. 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 INCOMPLETE or UNKNOWN, move the shift lever to 2nd and then perform steps [C] through [D] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 327

AIR FUEL RATIO SENSOR SLOW RESPONSE (RICH TO LEAN)

AIR FUEL RATIO SENSOR SLOW RESPONSE (LEAN TO RICH)

AIR FUEL RATIO SENSOR DELAYED RESPONSE (RICH TO LEAN)

AIR FUEL RATIO SENSOR DELAYED RESPONSE (LEAN TO RICH)

Refer to CHECKING MONITOR STATUS .

HINT

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

Scheme 328

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
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-427310-S22296836352011101200000) .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch to ON and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details.
8. Check that RES RATE B1S1 is Incomplete.
9. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].
10. Drive the vehicle at approximately 37 mph (60 km/h) for 10 minutes or more in a city area [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
11. Check the monitor result values on the Techstream by entering the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details / RES RATE B1S1.
12. 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-427310-S25323506092011101200000) .
13. Note the value of Monitor Result.
14. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
15. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
16. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
17. Input the DTC: P014C, P014D, P015A or P015B.
18. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform the following procedure.
19. Drive the vehicle at a speed between 47 and 63 mph (75 and 100 km/h) for 10 minutes [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
20. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
21. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
22. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
23. Input the DTC: P014C, P014D, P015A or P015B.
24. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
25. If the judgment 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P014C, P014D, P015A OR P015B) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to P014C, P014D, P015A or P015B A P014C, P014D, P015A or P015B and other DTCs B HINT: If any DTCs other than P014C, P014D, P015A or P015B are output, troubleshoot those DTCs first. B --> See step 10 A: Go to next step
2. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Inspect the air fuel ratio sensor. Refer to «INSPECTION»(ref-427449-S05485265662011101200000) . NG --> See step 11 OK: Go to next step
3. 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 B16-1 (HA1A) - B29-109 (HA1A) Always Below 1 ohms B16-3 (A1A+) - B29-112 (A1A+) Always Below 1 ohms B16-4 (A1A-) - B29-113 (A1A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B16-1 (HA1A) or B29-109 (HA1A) - Body ground Always 10 kohms or higher B16-3 (A1A+) or B29-112 (A1A+) - Body ground Always 10 kohms or higher B16-4 (A1A-) or B29-113 (A1A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK AIR FUEL RATIO SENSOR Check that the proper air fuel ratio sensor is installed to the vehicle. NG --> See step 12 OK: Go to next step
5. PERFORM CONFIRMATION DRIVING PATTERN Drive the vehicle according to Confirmation Driving Pattern. NEXT: Go to next step
6. CHECK WHETHER DTC OUTPUT RECURS (DTC P014C, P014D, P015A OR P015B) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the DTCs. Result Result Proceed to P014C, P014D, P015A or P015B A No output B B --> See step 13 A: Go to next step
7. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-427449-S10458479212011101200000) . NEXT: Go to next step
8. PERFORM CONFIRMATION DRIVING PATTERN Drive the vehicle according to Confirmation Driving Pattern. NEXT: Go to next step
9. CHECK WHETHER DTC OUTPUT RECURS (DTC P014C, P014D, P015A OR P015B) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the DTCs. Result Result Proceed to No output A P014C, P014D, P015A or P015B B B --> See step 14 A --> END
10. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
11. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-427449-S10458479212011101200000)
12. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-427449-S10458479212011101200000)
13. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427310-S20815739452011101200000)
14. CHECK ENGINE TO DETERMINE CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO. Refer to «DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1)»(ref-427456-S32194576072011101200000)

Scheme 329

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) with all the accessories switched off [B].
7. With the engine warmed up, idle the engine for 2 minutes or more [C].
8. Drive the vehicle at between 37 and 84 mph (60 and 135 km/h) for 5 minutes or more [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
11. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0171 OR P0172) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0171 or P0172 A P0171 or P0172 and other DTCs B HINT: If any DTCs other than P0171 or P0172 are output, troubleshoot those DTCs first. B --> See step 22 A: Go to next step
2. CHECK PCV HOSE CONNECTIONS Check the PCV hose connections. OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
3. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-427453-S18261765532011101200000) . OK No leaks in air induction system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
4. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine and run the engine at an engine speed of 2500 RPM for approximately 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Data List / All Data / AFS Voltage B1S1 and O2S B1S2. Perform the Control the Injection Volume operation with the engine idling. Monitor the output voltages of the air fuel ratio and the heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2) displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12.0% and +12.0%. The injection volume can be changed in fine gradations. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. If there is almost no response from the air fuel ratio sensor, a malfunction of the air fuel ratio sensor is suspected. Standard Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 (Air fuel ratio) +12% Rich Below 3.1 V -12% Lean Higher than 3.4 V O2S B1S2 (Heated oxygen) +12% Rich Higher than 0.55 V -12% Lean Below 0.4 V Result Status of AFS Voltage B1S1 Status of O2S B1S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - - A Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Fuel injector blockage Gas leak from exhaust system Intake system Fuel pressure Mass air flow meter Engine coolant temperature sensor Rich Rich Actual air fuel ratio rich - Fuel injector leak or blockage Gas leak from exhaust system Ignition system Fuel pressure Mass air flow meter Engine coolant temperature sensor Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor Lean: During Control the Injection Volume Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently below 0.4 V. Rich: During Control the Injection Volume Active Test, the AFS Voltage is consistently below 3.1 V, and the O2S is consistently higher than 0.55 V. Lean/Rich: During Control the Injection Volume Active Test of the Active Test, the output voltage of the heated oxygen sensor alternates correctly. HINT: Refer to "Data List / Active Test" [AFS Voltage B1S1, O2S B1S2]. Refer to «DATA LIST / ACTIVE TEST»(ref-427310-S19809003312011101200000) . B --> See step 11 A: Go to next step
5. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp. Read the Coolant Temp twice, when the engine is both cold and warmed up. Standard With cold engine: Same as ambient air temperature. With warm engine: Between 75 and 100°C (167 and 212°F). NG --> See step 23 OK: Go to next step
6. READ VALUE USING TECHSTREAM (MAF) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF and Coolant Temp. Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher. Read MAF with the engine speed at 3000 RPM. Standard Between 7.6 gm/sec. and 11.4 gm/sec. (Shift lever: Neutral; A/C: Off). NG --> See step 16 OK: Go to next step
7. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427458-S03700606232011101200000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
8. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
9. CHECK FOR SPARK AND IGNITION See step 8 NG --> REPAIR OR REPLACE IGNITION SYSTEM OK: Go to next step
10. INSPECT FUEL INJECTOR ASSEMBLY (INJECTION AND VOLUME) Check the injection and volume. Refer to «INSPECTION»(ref-427452-S10810725132011101200000) . OK --> See step 15 NG --> See step 24
11. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) See step 1 NG --> See step 25 OK: Go to next step
12. CHECK TERMINAL VOLTAGE (+B OF AIR FUEL RATIO SENSOR) See step 2 NG --> See step 21 OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) See step 3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
14. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-427449-S10458479212011101200000) . NEXT: Go to next step
15. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. 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 / Trouble Codes. Read the DTCs. Result Result Proceed to P0171 or P0172 A No output B B --> END A: Go to next step
16. CHECK HARNESS AND CONNECTOR Check the connection and terminal contact pressure of connectors and wire harness between the mass air flow meter and ECM. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-427305-S30340386252011101200000) . HINT: Repair any problems. NEXT: Go to next step
17. CHECK WHETHER DTC OUTPUT RECURS (DTC P0171 OR P0172) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. 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 / Trouble Codes. Read the DTCs. Result Result Proceed to P0171 or P0172 A No output B B --> END A: Go to next step
18. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter 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 B2-5 (VG) - B29-118 (VG) Always Below 1 ohms B2-4 (E2G) - B29-116 (E2G) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B2-5 (VG) or B29-118 (VG) - Body ground Always 10 kohms or higher Reconnect the mass air flow meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER - ECM) OK: Go to next step
19. REPLACE MASS AIR FLOW METER Replace the mass air flow meter. Refer to «REMOVAL»(ref-427449-S21274041812011101200000) . HINT: If the result of the inspection performed in step 6 indicated no problem, proceed to the next step without replacing the mass air flow meter. NEXT: Go to next step
20. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. 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 / Trouble Codes. Read the DTCs. Result Result Proceed to No output A P0171 or P0172 B B --> See step 26 A --> END
21. INSPECT FUSE (EFI NO. 2 FUSE) See step 5 NG --> REPLACE FUSE (EFI NO. 2 FUSE) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM RELAY BLOCK)
22. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
23. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-427449-S10731655672011101200000)
24. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-427452-S29036458662011101200000)
25. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-427449-S10458479212011101200000)
26. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)

Scheme 330

When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. High HC concentration levels can cause an increase in exhaust emission levels. Extremely high concentrations of HC can also cause increases in the three-way catalytic converter temperature, which may cause damage to the three-way catalytic converter. To prevent this increase in emissions and to limit the possibility of thermal damage, the ECM monitors the misfire rate. When the temperature of the three-way catalytic converter reaches the point of thermal degradation, the ECM blinks the MIL. To monitor misfires, the ECM uses both the camshaft position sensor and the crankshaft position sensor. The camshaft position sensor is used to identify any misfiring cylinders and the crankshaft position sensor is used to measure variations in the crankshaft rotation speed. Misfires are counted when the crankshaft rotation speed variations exceed predetermined thresholds. If the misfire count exceeds the threshold levels, and could cause emission control system performance deterioration, the ECM illuminates the MIL and sets a DTC.

When DTCs for misfiring cylinders are randomly set, but DTC P0300 is not set, it indicates that misfires have been detected in different cylinders at different times. DTC P0300 is only set when several misfiring cylinders are detected at the same time.

MISFIRE

MONITOR PERIOD OF EMISSION RELATED MISFIRE

MONITOR PERIOD OF CATALYST DAMAGING MISFIRE (MIL BLINKS)

MONITOR PERIOD OF EMISSION RELATED MISFIRE

MONITOR PERIOD OF CATALYST DAMAGED MISFIRE (MIL BLINKS)

Refer to CHECKING MONITOR STATUS .

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Record the DTC(s) and freeze frame data.
5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .
6. Using the Techstream, switch the ECM from normal mode to check mode. Refer to «CHECK MODE PROCEDURE»(ref-427310-S10011495952011101200000) .
7. Read the misfire counts of each cylinder, Cylinder #1 Misfire Count to Cylinder #4 Misfire Count, with the engine idling. If any misfire count is displayed, skip the following confirmation driving pattern.
8. Drive the vehicle several times with the conditions, such as engine speed and engine load, as shown in Misfire RPM and Misfire Load in the freeze frame data. HINT: In order to store misfire DTCs, it is necessary to operate the vehicle for the period of time shown in the table below with the engine speed and engine load the same as Misfire RPM and Misfire Load in the freeze frame data. Engine speed Duration Idling 7.0 minutes or more 1000 4.0 minutes or more 2000 2.0 minutes or more 3000 1.5 minutes or more
9. Check whether misfires have occurred by checking DTCs and freeze frame data. HINT: Do not turn the ignition switch off until the output DTC(s) and freeze frame data have been recorded. When the ECM returns to normal mode (default), the stored DTC(s), freeze frame data and other data are cleared.
10. Record the DTC(s), freeze frame data and misfire counts.
11. Turn the ignition switch off and wait for at least 30 seconds.
12. Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .

Scheme 331

Scheme 332

Refer to DTC P0102. Refer to WIRING DIAGRAM .

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE DTCS) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0300, P0301, P0302, P0303 and/or P0304 A P0300, P0301, P0302, P0303 and/or P0304 and other DTCs B HINT: If any DTCs other than P0300, P0301, P0302, P0303 and P0304 are output, troubleshoot those DTCs first. B --> See step 39 A: Go to next step
2. CHECK PCV HOSE CONNECTIONS Check PCV hose connections. OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
3. READ VALUE USING TECHSTREAM (MISFIRE RPM AND MISFIRE LOAD) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Misfire / Misfire RPM and Misfire Load. Read and note the Misfire RPM and Misfire Load values. HINT: The Misfire RPM and Misfire Load values indicate the vehicle conditions under which the misfire occurred. NEXT: Go to next step
4. READ VALUE USING TECHSTREAM (CATALYST OT MF F/C) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Catalyst OT MF F/C. Read the value displayed on the Techstream. Result Data List Techstream Display Proceed to Catalyst OT MF F/C Avail A Not Avl B B --> See step 6 A: Go to next step
5. PERFORM ACTIVE TEST USING TECHSTREAM (PROHIBIT THE CATALYST OT MISFIRE PREVENT F/C) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Prohibit the Catalyst OT Misfire prevent F/C. Perform the Active Test. NOTE: When performing the Active Test, make sure the vehicle is stopped and the engine is either idling or being revved at 3000 RPM or less. NEXT: Go to next step
6. READ VALUE USING TECHSTREAM (CYLINDER #1, #2, #3 AND #4 MISFIRE COUNT) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Cylinder #1 (to #4) Misfire Count. Allow the engine to idle. Read each value for Cylinder #1 (to #4) Misfire Count displayed on the Techstream. If no misfire counts occur in any cylinders, perform the following procedures: Move the shift lever in D (for automatic transaxle models). Drive the vehicle (for manual transaxle models). Check Cylinder #1 (to #4) Misfire Count. If misfire counts are still not displayed, perform procedure "A" and "B", and then check the misfire counts again (for automatic transaxle models). Procedure A: Drive the vehicle while satisfying the Misfire RPM and Misfire Load values noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedure above. Procedure B: Read the Cylinder #1 (to #4) Misfire Count or the DTCs output on the Techstream. Result Result Proceed to Most misfires occur in only 1 or 2 cylinders A 3 cylinders or more have equal misfire counts B HINT: If it is difficult to reproduce misfires for each cylinder, check the Data List item called Misfire Margin. Try to find vehicle driving conditions that lower the Misfire Margin value. Values above 30% are considered normal. If the freeze frame data record of the engine coolant temperature is below 75°C (167°F), the misfire may be detected only when the engine is cold. If the freeze frame data record of the Engine Run Time is below 120 seconds, the misfire may be detected immediately after the engine is started. B --> See step 19 A: Go to next step
7. INSPECT SPARK PLUG Inspect the spark plug of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427450-S31126501062011101200000) . NG --> See step 41 OK: Go to next step
8. CHECK FOR SPARKS AND IGNITION Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427450-S31126501062011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 36 OK: Go to next step
9. CHECK CYLINDER COMPRESSION PRESSURE Measure the compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 9»(ref-427451-S24958267742011101200000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
10. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE). Refer to «PROCEDURE - Step 1»(ref-427447-S19053840092011101200000) NG --> See step 42 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (ECM - FUEL INJECTOR). Refer to «PROCEDURE - Step 3»(ref-427447-S19053840092011101200000) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - FUEL INJECTOR) OK: Go to next step
12. CHECK FUEL INJECTOR OF MISFIRING CYLINDER Check the injector injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION - Step 1»(ref-427452-S19949804652011101200000) . NG --> See step 43 OK: Go to next step
13. CHECK VALVE CLEARANCE OF MISFIRING CYLINDER Check the valve clearance. Refer to «ADJUSTMENT - Step 7»(ref-427451-S42752120722011101200000) . NG --> See step 44 OK: Go to next step
14. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-427453-S18261765532011101200000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
15. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427458-S03700606232011101200000) . NG --> See step 38 OK: Go to next step
16. READ VALUE USING TECHSTREAM (COOLANT TEMP) See step 5 NG --> See step 46 OK: Go to next step
17. READ VALUE USING TECHSTREAM (MAF) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF and Coolant Temp. Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher. Read MAF with the engine speed at 3000 RPM. Standard Between 7.6 gm/sec. and 11.4 gm/sec. (Shift lever: Neutral; A/C: Off). NG --> See step 31 OK: Go to next step
18. CHECK VALVE TIMING See step 5 OK --> See step 31 NG --> See step 45
19. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427453-S25655976822011101200000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
20. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427458-S03700606232011101200000) . NG --> See step 38 OK: Go to next step
21. READ VALUE USING TECHSTREAM (COOLANT TEMP) See step 5 NG --> See step 46 OK: Go to next step
22. READ VALUE USING TECHSTREAM (MAF) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF and Coolant Temp. Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher. Read MAF with the engine speed at 3000 RPM. Standard Between 7.6 gm/sec. and 11.4 gm/sec. (Shift lever: Neutral; A/C: Off). NG --> See step 31 OK: Go to next step
23. CHECK VALVE TIMING See step 5 NG --> See step 45 OK: Go to next step
24. INSPECT SPARK PLUG Inspect the spark plug of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427450-S31126501062011101200000) . NG --> See step 47 OK: Go to next step
25. CHECK FOR SPARK AND IGNITION Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427450-S31126501062011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 36 OK: Go to next step
26. CHECK CYLINDER COMPRESSION PRESSURE Measure the compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 9»(ref-427451-S24958267742011101200000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
27. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE). Refer to «PROCEDURE - Step 1»(ref-427447-S19053840092011101200000) NG --> See step 42 OK: Go to next step
28. CHECK HARNESS AND CONNECTOR (ECM - FUEL INJECTOR). Refer to «PROCEDURE - Step 3»(ref-427447-S19053840092011101200000) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - FUEL INJECTOR) OK: Go to next step
29. CHECK FUEL INJECTOR OF MISFIRING CYLINDER Check the injector injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION - Step 1»(ref-427452-S19949804652011101200000) . NG --> See step 43 OK: Go to next step
30. CHECK VALVE CLEARANCE OF MISFIRING CYLINDER Check the valve clearance. Refer to «ADJUSTMENT - Step 7»(ref-427451-S42752120722011101200000) . NG --> See step 44 OK: Go to next step
31. CHECK HARNESS AND CONNECTOR Check the connection and terminal contact pressure of connectors and wire harness between the mass air flow meter and ECM. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-427305-S30340386252011101200000) . HINT: Repair any problems. NEXT: Go to next step
32. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0300, P0301, P0302, P0303 or P0304. Check the DTC judgment result. Result Result Proceed to ABNORMAL (P0300, P0301, P0302, P0303 or P0304) A NORMAL (No output) B B --> END A: Go to next step
33. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter 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 B2-5 (VG) - B29-118 (VG) Always Below 1 ohms B2-4 (E2G) - B29-116 (E2G) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B2-5 (VG) or B29-118 (VG) - Body ground Always 10 kohms or higher Reconnect the mass air flow meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER - ECM) OK: Go to next step
34. REPLACE MASS AIR FLOW METER Replace the mass air flow meter. Refer to «REMOVAL»(ref-427449-S21274041812011101200000) . HINT: If the results of the inspections performed in steps 17 and 22 indicated no problem, proceed to the next step without replacing the mass air flow meter. NEXT: Go to next step
35. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0300, P0301, P0302, P0303 or P0304. Check the DTC judgment result. Result Result Proceed to NORMAL (No output) A ABNORMAL (P0300, P0301, P0302, P0303 or P0304) B B --> See step 40 A --> END
36. CHANGE TO NORMAL SPARK PLUG AND CHECK SPARK OF MISFIRING CYLINDER Change the installed spark plug to a spark plug that functions normally. Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427450-S31126501062011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 37 OK --> See step 47
37. CHANGE TO NORMAL IGNITION COIL AND CHECK SPARK OF MISFIRING CYLINDER Change the ignition coil to a ignition coil that functions normally. Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427450-S31126501062011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 40 OK --> See step 48
38. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 49
39. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
40. REPLACE ECM. Refer to «REMOVAL»(ref-427449-S11002530612011101200000)
41. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-427449-S24613217962011101200000)
42. GO TO FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-427447-S13245104332011101200000)
43. REPLACE FUEL INJECTOR. Refer to «REMOVAL»(ref-427452-S29036458662011101200000)
44. ADJUST VALVE CLEARANCE. Refer to «ADJUSTMENT»(ref-427451-S18911699692011101200000)
45. ADJUST VALVE TIMING. Refer to «INSTALLATION»(ref-427451-S26889264472011101200000)
46. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-427449-S10731655672011101200000)
47. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-427449-S24613217962011101200000)
48. REPLACE IGNITION COIL. Refer to «REMOVAL»(ref-427449-S24613217962011101200000)
49. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-427452-S23285075962011101200000)

KNOCK SENSOR RANGE CHECK (LOW VOLTAGE)

KNOCK SENSOR RANGE CHECK (HIGH VOLTAGE)

Scheme 333

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and wait 10 seconds.
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P0327 or P0328.
9. Check the DTC judgment result [B]. 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 INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again [C].
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 334

ALL

CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 1)

CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 2)

CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT

Scheme 335

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 20 seconds or more [B].
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0335 or P0339.
10. Check the DTC judgment result [C]. 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 INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 336

ALL

CASE 1

CASE 2

CASE 1

CASE 2

Scheme 337

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds or more [B].
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0340.
10. Check the DTC judgment result [C]. 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 INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds or more [B].
8. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9. Input the DTC: P0351, P0352, P0353 or P0354.
10. Check the DTC judgment result [C]. 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 INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 338

Refer to CHECKING MONITOR STATUS .

HINT

Performing this confirmation driving pattern will activate the catalyst efficiency monitor. This is very useful for verifying the completion of a repair.

Scheme 339

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
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-427310-S22296836352011101200000) .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch to ON and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor.
8. Check that Catalyst Efficiency / Current is Incomplete.
9. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].
10. Drive the vehicle at approximately 37 mph (60 km/h) for 10 minutes or more [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Drive the vehicle while keeping the engine load as constant as possible. The monitor item will change to Complete as the catalyst efficiency monitor operates [C].
11. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
12. Check if any DTCs (pending DTCs) are stored. HINT: If the monitor does not change to Complete, and no pending DTCs are stored, perform the following procedure.
13. Drive the vehicle at a speed between 47 and 63 mph (75 and 100 km/h) for 10 minutes or more [D]. HINT: Drive the vehicle while keeping the engine load as constant as possible. The monitor item will change to Complete as the catalyst efficiency monitor operates [E].
14. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
15. Check if any DTCs (pending DTCs) are stored.

HINT

If Catalyst does not change to Complete, and no pending DTCs are stored, extend the driving time.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0420) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to P0420 A P0420 and other DTCs B HINT: If any DTCs other than P0420 are output, troubleshoot those DTCs first. B --> See step 7 A: Go to next step
2. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Start the engine and warm it up. Turn the Techstream on. Run the engine at an engine speed of 2500 RPM for approximately 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / Data List / All Data / AFS Voltage B1S1 and O2S B1S2. Perform the Active Test operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume). Monitor the voltage outputs of the air fuel ratio sensor and heated oxygen sensor (AFS Voltage B1S1 and O2S B1S2) displayed on the Techstream. HINT: The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%. Each sensor reacts in accordance with increases and decreases in the fuel injection volume. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. If there is almost no response from the air fuel ratio sensor, a malfunction of the air fuel ratio sensor is suspected. Standard Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 (Air Fuel Ratio) +25% Rich Less than 3.1 -12.5% Lean More than 3.4 O2S B1S2 (Heated Oxygen) +25% Rich More than 0.55 -12.5% Lean Less than 0.4 Result Status AFS Voltage B1S1 Status O2S B1S2 Air Fuel Ratio Condition and Air Fuel Ratio and Heated Oxygen Sensors Condition Misfire Main Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - Three-way catalytic converter Gas leakage from exhaust system A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor Lean/Rich Lean Heated oxygen sensor malfunction - Heated oxygen sensor Gas leakage from exhaust system C Lean/Rich Rich Heated oxygen sensor malfunction - Heated oxygen sensor Gas leakage from exhaust system Lean Lean Actual air fuel ratio lean May occur Extremely rich or lean actual air-fuel ratio Gas leakage from exhaust system A Rich Rich Actual air fuel ratio rich - Extremely rich or lean actual air-fuel ratio Gas leakage from exhaust system Lean: During Control the Injection Volume for A/F Sensor, the air fuel ratio sensor output voltage (AFS Voltage) is consistently more than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently less than 0.4 V. Rich: During Control the Injection Volume for A/F Sensor, the AFS Voltage is consistently less than 3.1 V, and the O2S is consistently more than 0.55 V. Lean/Rich: During Control the Injection Volume for A/F Sensor of the Active Test, the output voltage of the heated oxygen sensor alternates correctly. B --> See step 8 C --> See step 6 A: Go to next step
3. CHECK FOR EXHAUST GAS LEAK Check exhaust system. OK No gas leaks. Result Proceed to OK (2WD) A OK (4WD) B NG C B --> See step 5 C --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT A: Go to next step
4. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: FRONT CATALYST) Replace exhaust manifold converter sub-assembly. Refer to «REMOVAL»(ref-427459-S39846980062011101200000) . NEXT --> See step 9
5. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: FRONT CATALYST) Replace exhaust manifold converter sub-assembly. Refer to «REMOVAL»(ref-427459-S39846980062011101200000) . NEXT --> See step 11
6. CHECK FOR EXHAUST GAS LEAK Check exhaust system. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK --> See step 10
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000)
8. REPLACE AIR FUEL RATIO SENSOR (SENSOR 1). Refer to «REMOVAL»(ref-427449-S10458479212011101200000)
9. REPLACE CENTER EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST). Refer to «REMOVAL»(ref-427459-S25267088402011101200000)
10. REPLACE HEATED OXYGEN SENSOR (SENSOR 2). Refer to «REMOVAL»(ref-427449-S15283322802011101200000)
11. REPLACE CENTER EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST). Refer to «REMOVAL»(ref-427459-S11607726322011101200000)

"Saturated" indicates that the EVAP pressure change is less than 0.286 kPa-g (2.14 mmHg-g) in 60 seconds.

Refer to CHECKING MONITOR STATUS .

Scheme 340

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 ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON 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 / Utility / All readiness.
8. Input the DTC: P043E, P043F, P2401, P2402 or P2419.
9. Check the DTC judgment result [B]. 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.
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . 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 .

Scheme 341

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and wait 15 minutes or more [B].
7. Enter the following menus: Powertrain / Engine and ECT / Utility / All readiness.
8. Input the DTC: P0441.
9. Check the DTC judgment result [C]. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed You should 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 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).
10. Turn the ignition switch to ON and turn the Techstream on.
11. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .
12. Turn the ignition switch off and wait for 30 seconds.
13. Turn the ignition switch to ON and turn the Techstream on.
14. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [D].
15. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
16. Input the DTC: P0441.
17. Check the DTC judgment result [E]. 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.
18. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
19. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
20. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P0451: NOISE MONITOR

P0451: FIXED/FLAT MONITOR

P0452 AND P0453

P0451: CANISTER PRESSURE SENSOR NOISE

P0451: CANISTER PRESSURE SENSOR FIXED/FLAT

P0452: CANISTER PRESSURE SENSOR LOW VOLTAGE

P0453: CANISTER PRESSURE SENSOR HIGH VOLTAGE

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 ignition switch to ON and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch to ON and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [A].
8. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All readiness.
9. Input the DTC: P0451, P0452 or P0453.
10. Check the DTC judgment result [B]. 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.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 342

P0455 (PATTERN A), P0456

P0455 (PATTERN B)

P0455: EVAP GROSS LEAK

P0456: EVAP SMALL LEAK

Refer to CHECKING MONITOR STATUS .

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 ignition switch to ON 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-427310-S22296836352011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON 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 / Utility / All Readiness.
8. Input the DTC: P0455 or P0456.
9. Check the DTC judgment result [B]. 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.
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-427310-S22296836352011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.