Engine Control System (Diagnostic Codes (P0300 - P106A)): Diagnosis Lexus CT I

INSPECTION PROCEDURE

HINT

1. If any DTCs other than misfire DTCs are output, troubleshoot those DTCs first.
2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
3. If the misfire does not recur when the vehicle is brought to the workshop, reproduce the conditions stored in the ECM as freeze frame data.
4. If the misfire still cannot be reproduced even though the conditions stored in the ECM as freeze frame data have been reproduced, one of the following factors is considered to be a possible cause of the problem: There was insufficient fuel in the tank. Improper fuel is used. The spark plugs have been contaminated. The problem requires further diagnosis.
5. After finishing repairs, check the misfire counts of the cylinders Cylinder #1 Misfire Count to Cylinder #4 Misfire Count.
6. Be sure to confirm that no misfiring cylinder DTCs are stored again by conducting the confirmation driving pattern after finishing repairs.
7. When one of Short FT #1or Long FT #1 in the freeze frame data is outside the range of +/-20%, the air fuel ratio may be Rich (-20% or less) or Lean (+20% or more).
8. When the Coolant Temp in the freeze frame data is below 75°C (167°F), the misfire has occurred only while warming up the engine.
9. An extremely imbalanced drive wheel which causes body vibration may cause misfire DTCs detection.

Scheme 118

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE DTCS) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P0300, P0301, P0302, P0303 and/or P0304 are output A DTC P0300, P0301, P0302, P0303 and/or P0304 and other DTCs are output B HINT: If any DTCs other than P0300, P0301, P0302, P0303 and/or P0304 are output, troubleshoot those DTCs first. B --> See step 37 A: Go to next step
2. CHECK PCV HOSE CONNECTIONS Check the PCV hose connections. Refer to «COMPONENTS»(ref-568729-S36705177482013072300000) . OK PCV valve and hose are correctly connected and are 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 power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Gas 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 (CYLINDER #1 (TO #4) MISFIRE COUNT) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Enter the following menus: Powertrain / Engine and ECT / Data List / Gas Misfire / 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 steps [A] and [B], and then check the misfire counts again. Drive the vehicle with the Misfire RPM and Misfire Load noted in the read value using the Techstream (Misfire RPM and Misfire Load) procedures above [A]. Read Cylinder #1 (to #4) Misfire Count or the DTCs displayed on the Techstream [B]. RESULT Misfire Count 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), it may only be possible to detect the misfire when the engine is cold. B --> See step 18 A: Go to next step
5. INSPECT SPARK PLUG Inspect the spark plug of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 3»(ref-568727-S24737313612013072300000) . NG --> See step 38 OK: Go to next step
6. CHECK FOR SPARK (SPARK TEST) Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-568727-S24737313612013072300000) . HINT: If the result of the spark test is normal, proceed to the next step. NEXT: Go to next step
7. CHECK CYLINDER COMPRESSION PRESSURE Measure the cylinder compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 8»(ref-568735-S41211346862013072300000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
8. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Disconnect the ECM connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D27-85 (#10) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-84 (#20) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-83 (#30) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-82 (#40) - D27-109 (E01) Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> See step 45 OK: Go to next step
9. CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-568741-S13114467992013072300000) . NG --> See step 40 OK: Go to next step
10. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-568742-S28571627562013072300000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
11. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-568736-S33207421652013072300000) . NG --> See step 36 OK: Go to next step
12. READ VALUE USING TECHSTREAM (COOLANT TEMP). Refer to «PROCEDURE - Step 5»(ref-568738-S26217863862013072300000) NG --> See step 41 OK: Go to next step
13. READ VALUE USING TECHSTREAM (MAF). Refer to «PROCEDURE - Step 6»(ref-568738-S26217863862013072300000) NG --> See step 31 OK: Go to next step
14. ADJUST VALVE TIMING. Refer to «PROCEDURE - Step 7»(ref-568738-S40378999142013072300000) NEXT: Go to next step
15. CHECK WHETHER DTC OUTPUT RECURS (DTC P0300, P0301, P0302, P0303 OR P0304) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Drive the vehicle accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. RESULT Result Proceed to DTC P0300, P0301, P0302, P0303 or P0304 is output A DTC is not output B B --> END A: Go to next step
16. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / Primary / MAP. Check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. RESULT Result Proceed to Outside of standard range A Within standard range B B --> See step 31 A: Go to next step
17. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-568729-S20442253562013072300000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. RESULT Result Proceed to NG A OK B B --> See step 31 A --> See step 44
18. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-568742-S28571627562013072300000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
19. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-568736-S33207421652013072300000) . NG --> See step 36 OK: Go to next step
20. READ VALUE USING TECHSTREAM (COOLANT TEMP). Refer to «PROCEDURE - Step 5»(ref-568738-S26217863862013072300000) NG --> See step 41 OK: Go to next step
21. READ VALUE USING TECHSTREAM (MAF). Refer to «PROCEDURE - Step 6»(ref-568738-S26217863862013072300000) NG --> See step 31 OK: Go to next step
22. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / Primary / MAP. Check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. RESULT Result Proceed to Outside of standard range A Within standard range B B --> See step 31 A: Go to next step
23. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-568729-S20442253562013072300000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 44 OK: Go to next step
24. INSPECT SPARK PLUG Remove the ignition coil assembly and the spark plug from the misfiring cylinder. Inspect the spark plug of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 3»(ref-568727-S24737313612013072300000) . NG --> See step 38 OK: Go to next step
25. CHECK FOR SPARK (SPARK TEST) Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-568727-S24737313612013072300000) . HINT: If the result of the spark test is normal, proceed to the next step. NEXT: Go to next step
26. CHECK CYLINDER COMPRESSION PRESSURE Measure the cylinder compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 8»(ref-568735-S41211346862013072300000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
27. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Disconnect the ECM connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D27-85 (#10) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-84 (#20) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-83 (#30) - D27-109 (E01) Power switch on (IG) 11 to 14 V D27-82 (#40) - D27-109 (E01) Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> See step 43 OK: Go to next step
28. CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-568741-S13114467992013072300000) . NG --> See step 40 OK: Go to next step
29. ADJUST VALVE TIMING. Refer to «PROCEDURE - Step 7»(ref-568738-S40378999142013072300000) NEXT: Go to next step
30. CHECK WHETHER DTC OUTPUT RECURS (DTC P0300, P0301, P0302, P0303 OR P0304) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Drive the vehicle accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. RESULT Result Proceed to DTC P0300, P0301, P0302, P0303 or P0304 is output A DTC is not output B B --> END A: Go to next step
31. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY CONNECTOR CONNECTION) Check the connection and terminal contact pressure of connectors and wire harnesses between the mass air flow meter sub-assembly and ECM. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-568589-S42645766622013072300000) . HINT: Repair any problems. NEXT: Go to next step
32. CHECK WHETHER DTC OUTPUT RECURS (MISFIRE DTCS) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0300, P0301, P0302, P0303 or P0304. Check the DTC judgment result. RESULT Result Proceed to ABNORMAL (DTC P0300, P0301, P0302, P0303 or P0304 is output) A NORMAL (DTC is not output) B B --> END A: Go to next step
33. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM). Refer to «PROCEDURE - Step 3»(ref-568738-S21806215492013072300000) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
34. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY Replace the mass air flow meter sub-assembly. Refer to «REMOVAL»(ref-568740-S27089628202013072300000) . HINT: If the results of the inspections performed in steps 13 and 21 indicated no problem, proceed to the next step without replacing the mass air flow meter sub-assembly. NEXT: Go to next step
35. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Turn the power switch off and wait for 30 seconds. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0300, P0301, P0302, P0303 or P0304. Check the DTC judgment result. RESULT Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0300, P0301, P0302, P0303 or P0304 is output) B B --> See step 39 A --> END
36. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 42
37. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568607-S40570208092013072300000)
38. REPLACE SPARK PLUG. Refer to «REMOVAL - Step 3»(ref-568740-S18930204062013072300000)
39. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)
40. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-568741-S26257196172013072300000)
41. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-568740-S16880215132013072300000)
42. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-568741-S18771218602013072300000)
43. GO TO FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-568734-S05321526172013072300000)
44. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-568729-S20442253562013072300000)
45. GO TO FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-568734-S05321526172013072300000)

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 119

1. READ VALUE USING TECHSTREAM (KNOCK FEEDBACK VALUE) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Knock Feedback Value. Read the value while driving the vehicle. OK The value changes. HINT: Malfunction does not occur Knock Feedback Value changes Malfunctions occur Knock Feedback Value does not change The knock feedback value change can be confirmed by running the engine with a high load, for example, by racing the engine. NG --> See step 2 OK --> See step 5
2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF KNOCK CONTROL SENSOR) Disconnect the knock control sensor connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition F1-2 - F1-1 Power switch on (IG) 4.5 to 5.5 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Knock Control Sensor) NG --> See step 4 OK: Go to next step
3. INSPECT KNOCK CONTROL SENSOR Inspect the knock control sensor. Refer to «INSPECTION»(ref-568740-S39816691752013072300000) . NG --> See step 7 OK --> See step 6
4. CHECK HARNESS AND CONNECTOR (KNOCK CONTROL SENSOR - ECM) Disconnect the knock control sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F1-2 - D27-87 (KNK1) Always Below 1 ohms F1-1 - D27-110 (EKNK) Always Below 1 ohms F1-2 or D27-87 (KNK1) - Body ground Always 10 kohms or higher F1-1 or D27-110 (EKNK) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-568607-S36791760822013072300000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)
7. REPLACE KNOCK CONTROL SENSOR. Refer to «REMOVAL»(ref-568740-S08254070402013072300000)

HINT

1. After performing the inspection procedure for the crankshaft position sensor, if DTC P0335 is output again, check the following items related to the camshaft position sensor. Installation condition of the camshaft position sensor Installation condition of the camshaft Connection of the camshaft position sensor connector
2. If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical systems.
3. Check the engine speed. The engine speed can be checked using the Techstream. To check, follow the operation below: Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Engine Speed. The engine speed may be indicated as zero despite the engine rotating normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
4. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 120

1. READ VALUE USING TECHSTREAM (ENGINE SPEED) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Engine Speed. Read the values displayed on the Techstream while the engine is running. OK Correct values are displayed. HINT: To check the engine speed change, display the graph on the Techstream. If the engine does not start, check the engine speed while cranking. If the engine speed indicated on the Techstream remains at zero (0), there may be an open or short in the crankshaft position sensor circuit. NG --> See step 2 OK --> See step 8
2. INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE) Inspect the crankshaft position sensor. Refer to «INSPECTION»(ref-568740-S17254227062013072300000) . NG --> See step 12 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Disconnect the crankshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D26-1 (NE) - D27-74 (NE+) Always Below 1 ohms D26-2 (NE-) - D27-120 (NE-) Always Below 1 ohms D26-1 (NE) or D27-74 (NE+) - Body ground Always 10 kohms or higher D26-2 (NE-) or D27-120 (NE-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the crankshaft position sensor installation. OK Crankshaft position sensor is installed correctly. NG --> See step 9 OK: Go to next step
5. INSPECT NO. 1 CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE) Check the teeth of the No. 1 crankshaft position sensor plate. Refer to «COMPONENTS»(ref-568735-S11966787492013072300000) . OK Sensor plate does not have any cracks or deformation. NG --> See step 10 OK: Go to next step
6. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL»(ref-568740-S33899137392013072300000) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0335) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . 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 DTC is not output A DTC P0335 is output B HINT: If the engine does not start, replace the ECM. B --> See step 11 A --> END
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-568607-S36791760822013072300000)
9. SECURELY REINSTALL CRANKSHAFT POSITION SENSOR. Refer to «INSTALLATION»(ref-568740-S13375632132013072300000)
10. REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE. Refer to «DISASSEMBLY»(ref-568735-S27453068572013072300000)
11. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)
12. REPLACE CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-568740-S33899137392013072300000)

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
2. If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.

Scheme 121

Scheme 122

1. CHECK TERMINAL VOLTAGE (POWER SOURCE OF CAMSHAFT POSITION SENSOR) Disconnect the camshaft position sensor connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D18-3 (VC) - Body ground Power switch on (IG) 4.5 to 5.0 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Camshaft Position Sensor) NG --> See step 9 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM) Disconnect the camshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D18-1 (VVI+) - D27-76 (G2+) Always Below 1 ohms D18-2 (VVI-) - D27-122 (G2-) Always Below 1 ohms D18-1 (VVI+) or D27-76 (G2+) - Body ground Always 10 kohms or higher D18-2 (VVI-) or D27-122 (G2-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR) Check the camshaft position sensor installation. OK Camshaft position is installed correctly. NG --> See step 10 OK: Go to next step
4. INSPECT INTAKE CAMSHAFT (TIMING ROTOR) Check the timing rotor of the intake camshaft. OK Timing rotor does not have any cracks or deformation. NG --> See step 12 OK: Go to next step
5. REPLACE CAMSHAFT POSITION SENSOR Replace the camshaft position sensor. Refer to «REMOVAL»(ref-568740-S07758050282013072300000) . NEXT: Go to next step
6. CHECK WHETHER DTC OUTPUT RECURS (DTC P0340, P0342 OR P0343) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . 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 DTC P0340, P0342 or P0343 is output A DTC is not output B B --> END A: Go to next step
7. ADJUST VALVE TIMING. Refer to «PROCEDURE - Step 7»(ref-568738-S40378999142013072300000) NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P0340, P0342 OR P0343) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . 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 DTC is not output A DTC P0340, P0342 or P0343 is output B HINT: If the engine does not start, replace the ECM. B --> See step 11 A --> END
9. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM) Disconnect the camshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D18-3 (VC) - D27-99 (VCV1) Always Below 1 ohms D18-3 (VC) or D27-99 (VCV1) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
10. SECURELY REINSTALL CAMSHAFT POSITION SENSOR. Refer to «INSTALLATION»(ref-568740-S24859363202013072300000)
11. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)
12. REPLACE INTAKE CAMSHAFT. Refer to «REMOVAL»(ref-568735-S07995821372013072300000)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 123

1. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) Disconnect the ignition coil assembly connectors. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D22-1 (+B) - D22-4 (GND) Power switch on (IG) 11 to 14 V D21-1 (+B) - D21-4 (GND) Power switch on (IG) 11 to 14 V D20-1 (+B) - D20-4 (GND) Power switch on (IG) 11 to 14 V D19-1 (+B) - D19-4 (GND) Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Ignition Coil Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY - IG2 RELAY) OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND) Disconnect the ignition coil assembly connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D22-4 (GND) - Body ground Always Below 1 ohms D21-4 (GND) - Body ground Always Below 1 ohms D20-4 (GND) - Body ground Always Below 1 ohms D19-4 (GND) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) Disconnect the ignition coil assembly connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D22-2 (IGF) - D27-23 (IGF1) Always Below 1 ohms D21-2 (IGF) - D27-23 (IGF1) Always Below 1 ohms D20-2 (IGF) - D27-23 (IGF1) Always Below 1 ohms D19-2 (IGF) - D27-23 (IGF1) Always Below 1 ohms D22-3 (IGT1) - D27-108 (IGT1) Always Below 1 ohms D21-3 (IGT2) - D27-107 (IGT2) Always Below 1 ohms D20-3 (IGT3) - D27-106 (IGT3) Always Below 1 ohms D19-3 (IGT4) - D27-105 (IGT4) Always Below 1 ohms D22-3 (IGT1) or D27-108 (IGT1) - Body ground Always 10 kohms or higher D21-3 (IGT2) or D27-107 (IGT2) - Body ground Always 10 kohms or higher D20-3 (IGT3) or D27-106 (IGT3) - Body ground Always 10 kohms or higher D19-3 (IGT4) or D27-105 (IGT4) - Body ground Always 10 kohms or higher D19-2 (IGF), D20-2 (IGF), D21-2 (IGF), D22-2 (IGF) or D27-23 (IGF1) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Shuffle arrangement of the ignition coil assemblies (among No. 1 to No. 4 cylinders). NOTE: Do not shuffle the connectors. 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 Same DTC output A Different ignition coil DTC output B B --> See step 5 A --> See step 6
5. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL - Step 2»(ref-568740-S18930204062013072300000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)

HINT

1. By using the Control the EGR Step Position Active Test, the operation of the EGR valve can be checked.
2. When the engine is idling steadily with the EGR valve fully closed, if the EGR valve is normal and it is opened using the Active Test, the Data List value changes as follows. Data List Change in Data List when Number of Steps is Increased Using Control the EGR Step Position Active Test Engine Speed Idle becomes rough MAP Pressure rises
3. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 124

Scheme 125

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0401) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P0401 is output A DTC P0401 and other DTCs are output B HINT: If any DTCs other than P0401 are output, troubleshoot those DTCs first. B --> See step 12 A: Go to next step
2. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: The A/C switch and all accessory switches should be off and shift lever in P or N. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / Primary / MAP. Check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. NG --> See step 4 OK: Go to next step
3. INSPECT EGR VALVE ASSEMBLY Check if the EGR valve are clogged with deposits. Check if the EGR valve is closed. OK EGR valve is closed and no deposits. RESULT Result Proceed to NG A OK B B --> See step 5 A: Go to next step
4. REPLACE EGR VALVE ASSEMBLY Replace the EGR valve assembly. Refer to «REMOVAL»(ref-568729-S20442253562013072300000) . NEXT: Go to next step
5. CHECK FOR DEPOSIT (INTAKE PORT TO EGR VALVE ASSEMBLY) Check for exhaust leaks at each connection point. Check for cracks, damage, and clogs in the pipes between the intake manifold and the EGR valve assembly. This check may require the removal of components. Check if there is a built-up of deposits in the EGR valve of pipes. OK No deposits. NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
6. CHECK FOR DEPOSIT (EXHAUST MANIFOLD SUB-ASSEMBLY TO EGR VALVE ASSEMBLY) Check for exhaust leaks at each connection point. Check for cracks, damage, and clogs in the pipes between the exhaust manifold sub-assembly and the EGR valve assembly. This check may require the removal of components. Check if there is a built-up of deposits in the EGR valve of pipes. OK No deposits. NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
7. INSPECT EGR WITH COOLER PIPE SUB-ASSEMBLY Check for blockage of the EGR with cooler pipe sub-assembly. NG --> REPLACE EGR WITH COOLER PIPE SUB-ASSEMBLY OK: Go to next step
8. READ VALUE USING TECHSTREAM (MAP) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP. Read the MAP value. Standard Condition Techstream Display Power switch on (IG) 80 to 110 kPa (600 to 825 mmHg) Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP. Read the MAP value when idling the engine with the A/C switch and all accessory switches should be off and shift lever in P or N. Standard Engine Condition Techstream Display Idling 28 to 48 kPa (210 to 360 mmHg) RESULT Result Proceed to NG A OK B B --> See step 11 A: Go to next step
9. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-568742-S28571627562013072300000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
10. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Replace the manifold absolute pressure sensor. Refer to «REMOVAL»(ref-568729-S19989838632013072300000) . NEXT: Go to next step
11. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Turn the power switch off and wait for 30 seconds. 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 / Pending. Read the pending DTCs. HINT: If the pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0401. 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 N/A Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit NEXT --> END
12. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568607-S40570208092013072300000)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 126

1. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / Primary / MAP. Check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. NG --> See step 2 OK --> See step 6
2. INSPECT EGR VALVE ASSEMBLY Inspect the EGR valve assembly. Refer to «INSPECTION»(ref-568729-S16639322662013072300000) . NG --> See step 7 OK: Go to next step
3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF EGR VALVE ASSEMBLY) Disconnect the EGR valve assembly connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D10-2 (+B1) - Body ground Power switch on (IG) 11 to 14 V D10-5 (+B2) - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to EGR Valve Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EGR VALVE ASSEMBLY - EFI MAIN RELAY) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (ECM - EGR VALVE ASSEMBLY) Disconnect the EGR valve assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D27-45 (EGR1) - D10-4 (EGR1) Always Below 1 ohms D27-44 (EGR2) - D10-3 (EGR2) Always Below 1 ohms D27-43 (EGR3) - D10-6 (EGR3) Always Below 1 ohms D27-42 (EGR4) - D10-1 (EGR4) Always Below 1 ohms D27-45 (EGR1) or D10-4 (EGR1) - Body ground Always 10 kohms or higher D27-44 (EGR2) or D10-3 (EGR2) - Body ground Always 10 kohms or higher D27-43 (EGR3) or D10-6 (EGR3) - Body ground Always 10 kohms or higher D27-42 (EGR4) or D10-1 (EGR4) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK DTC OUTPUT RECORDS (DTC P0403) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . 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 DTC is not output A DTC P0403 is output B B --> See step 8 A --> END
6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-568607-S36791760822013072300000)
7. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-568729-S20442253562013072300000)
8. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)

CONDITIONING FOR SENSOR TESTING

HINT

Perform the operation with the engine speeds and time durations described below prior to checking the waveforms of the air fuel ratio sensor and heated oxygen sensor. This is in order to activate the sensors sufficiently to obtain the appropriate inspection results.

Scheme 127

1. (a) Connect the Techstream to the DLC3 [A].
2. (b) Turn the power switch on (IG) and turn the Techstream on [B].
3. (c) Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) [C].
4. (d) Start the engine and warm it up with all the accessories switched off until the engine coolant temperature stabilizes [D].
5. (e) Run the engine at an engine speed of 2500 RPM for at least 3 minutes [E]. HINT: During charging control, the engine speed is set at idle. Therefore, the engine speed does not increase when depressing the accelerator pedal. In this case, perform step [E] after charging control has completed.
6. (f) While running the engine at 2500 RPM for 2 seconds and 1500 RPM for 2 seconds, check the waveforms of the air fuel ratio and heated oxygen sensors using the Techstream [F].

HINT

1. If either of the voltage outputs of the air fuel ratio or heated oxygen sensor does not fluctuate, or there is noise in the waveform of either sensor, the sensor may be malfunctioning.
2. If the voltage outputs of both the sensors remain lean or rich, the air fuel ratio may be extremely lean or rich. In such cases, perform the Control the Injection Volume Active Test using the Techstream.
3. If the three-way catalytic converter has deteriorated, the heated oxygen sensor (located behind the three-way catalytic converter) voltage output fluctuates up and down frequently, even under normal driving conditions (active air fuel ratio control is not performed).

Scheme 128

HINT

1. Sensor 1 refers to the sensor closest to the engine assembly.
2. Sensor 2 refers to the sensor farthest away from the engine assembly.
3. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

DTC SUMMARY

HINT

The reference orifice is located inside the canister pump module.

Refer to the EVAP system. Refer to INSPECTION PROCEDURE .

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 129

Scheme 130

1. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) Connect the Techstream to the DLC3. Remove the canister side vacuum hose from the purge VSV. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control. Check if air is sucked into the port when operating the purge VSV using the Techstream. OK Techstream Operation Specified Condition ON (Purge VSV is on) Suction of air OFF (Purge VSV is off) No suction of air NG --> See step 2 OK --> See step 5
2. INSPECT PURGE VSV Inspect the purge VSV. Refer to «INSPECTION»(ref-568729-S17088583322013072300000) . NG --> See step 6 OK: Go to next step
3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D11-2 - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI MAIN RELAY) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the purge VSV connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D11-1 (Purge VSV) - D27-28 (PRG) Always Below 1 ohms D11-1 (Purge VSV) or D27-28 (PRG) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-568607-S36791760822013072300000)
6. REPLACE PURGE VSV. Refer to «REMOVAL»(ref-568729-S41524717262013072300000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)

HINT

The canister pressure sensor is built into the canister pump module.

Note. When a vehicle is brought into the workshop, leave it as it is. Do not change the vehicle condition. For example, do not tighten the fuel cap. Do not disassemble the canister pump module. The Techstream is required to conduct the following diagnostic troubleshooting procedure. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 131

1. CONFIRM DTC AND EVAP PRESSURE Connect the Techstream to the DLC3. Turn the power switch on (IG) (do not start the engine). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Enter the following menus: Powertrain / Engine and ECT / Data List / Gas Evaporative / Vapor Pressure Pump. Read the EVAP (Evaporative Emission) pressure displayed on the Techstream. RESULT Display (DTC Output) Test Result Suspected Trouble Area Proceed to P0451 - Canister pressure sensor C P0452 Less than 42.11 kPa(abs) [315.83 mmHg(abs)] Wire harness/connector (ECM - Canister pressure sensor) Canister pressure sensor Short in ECM circuit A P0453 Higher than 123.761 kPa(abs) [928.208 mmHg(abs)] Wire harness/connector (ECM - Canister pressure sensor) Canister pressure sensor Open in ECM circuit B B --> See step 4 C --> See step 9 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Turn the power switch off. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. RESULT Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to D27-114 (PPMP) - Body ground Always Below 10 ohms Wire harness/connector (ECM - Canister pressure sensor) Short in canister pressure sensor circuit A 10 kohms or higher Wire harness/connector (ECM - Canister pressure sensor) Short in ECM circuit B B --> See step 7 A: Go to next step
3. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the canister pump module connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. RESULT Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to D27-114 (PPMP) - Body ground Always 10 kohms or higher Short in canister pressure sensor circuit A Below 10 ohms Short in wire harness/connector (ECM - Canister pressure sensor) B A --> See step 5 B --> See step 6
4. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition R1-8 (SGND) - Body ground Always 100 ohms or less Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition R1-6 (VCC) - Body ground Power switch on (IG) 4.5 to 5.5 V R1-7 (VOUT) - Body ground Power switch on (IG) 4.5 to 5.5 V RESULT Test Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in canister pressure sensor circuit A Voltage and resistance outside standard ranges Open in wire harness/connector (ECM - Canister pressure sensor) B B --> See step 6 A: Go to next step
5. REPLACE CANISTER ASSEMBLY Replace the canister assembly. Refer to «REMOVAL»(ref-568729-S41155687212013072300000) . NOTE: When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter. TEXT IN ILLUSTRATION *1 Fuel Tank Vent Hose *2 Air Inlet Port *3 Vent Hose *4 Fuel Tank *5 Canister *6 Canister Filter *a Inspection Area (check for disconnection and/or cracks) - - NEXT --> See step 8
6. REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM) HINT: If the exhaust tail pipe assembly has been removed, go to the next step before reinstalling it. NEXT --> See step 8
7. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000) . NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P0451, P0452 OR P0453) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG). Turn the Techstream on. Perform the Evaporative System Check using the Techstream, referring to the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0451, P0452 or P0453. Check the DTC judgment result. 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 N/A Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit NEXT --> END
9. GO TO EVAP SYSTEM. Refer to «EVAP System»(ref-568734-S16037599052013072300000)

Refer to the EVAP system. Refer to INSPECTION PROCEDURE .

HINT

1. The following conditions may also cause DTC P0505 to be stored: The floor carpet overlapping slightly onto the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open. The accelerator pedal being not fully released.
2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
3. Refer to "Data List / Active Test" [Engine Speed and ISC Learning Value]. Refer to «DATA LIST / ACTIVE TEST»(ref-568607-S17841424132013072300000) .

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

1. DTC P050B may be output when the engine shows the symptom as listed below. If necessary, check the trouble area as listed below. Symptom Factor Trouble Area Low idle speed at engine cold (immediately after engine start) Excessive engine friction Engine oil deterioration Rough idle at engine cold (immediately after engine start) Abnormal combustion Fuel quality
2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION . Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 132

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0607) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P0607 and P0136, P0137 or P0138 are output A DTC P0607 is output B B --> See step 3 A: Go to next step
2. INSPECT DTC (P0136, P0137 OR P0138) Inspect the P0136, P0137 or P0138 flowchart. HINT: If P0136 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or higher). NEXT --> See step 6
3. CHECK FOR EXHAUST GAS LEAK Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Allow the engine to idle and rev the engine. Check for exhaust gas leaks around the heated oxygen sensor. If any exhaust gas leaks are present, repair them and proceed to "Perform Confirmation Driving Pattern". If no exhaust gas leaks are present, proceed to "Perform Confirmation Driving Pattern". HINT: If no exhaust gas leaks are present, a malfunction in the heated oxygen sensor circuit is suspected. If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor. NEXT: Go to next step
4. PERFORM CONFIRMATION DRIVING PATTERN Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine. Warm up the engine until the engine coolant temperature becomes 75°C (167°F) or higher. Perform the driving pattern. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle. Drive the vehicle between 60 and 80 km/h (37 and 50 mph) for 5 minutes. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P0607 and P0136, P0137 or P0138 are output A Only P0607 is output B DTC is not output C B --> See step 7 C --> See step 6 A: Go to next step
5. INSPECT DTC (P0136, P0137 OR P0138) Inspect the P0136, P0137 or P0138 flowchart. HINT: If P0136 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-568738-S13664173822013072300000) . Then proceed to "Inspect ECM". If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or higher). NEXT: Go to next step
6. INSPECT ECM Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . Stop the engine and wait for 30 minutes. Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-568589-S23460353802013072300000) . Start the engine and allow it to idle for 2 minutes. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check the DTCs. RESULT Result Proceed to DTC is not output A DTC P0607 is output B B --> See step 7 A --> END
7. REPLACE ECM. Refer to «REMOVAL»(ref-568740-S18557757702013072300000)

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. There is a possibility that the DTC P062F is issued from the ECUs of the ECM and power management control ECU. Use Techstream to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
2. Refer to "Data List / Active Test" [Vapor Pressure Pump and MAP]. Refer to «DATA LIST / ACTIVE TEST»(ref-568607-S17841424132013072300000) .