Engine Control System (Diagnostic Codes (P1603 - P2195)): Diagnosis Lexus RX III рестайлинг

INSPECTION PROCEDURE

HINT

1. In contrast to normal malfunction diagnosis for components, circuits and systems, DTCs P1603 and P1605 are used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as engine stall. As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
2. If any other DTCs are output, perform troubleshooting for those DTCs first.
3. Use any information from the customer problem analysis about the condition of the vehicle at the time when the problem occurred (how the engine stopped, conditions when the engine was restarted, etc.) as a reference. Symptom Suspected Area Engine vibration occurs and engine stops Air-fuel ratio abnormal Engine stops with no engine vibration Ignition system, injection stoppage, high load from external parts Engine can be started with accelerator pedal depressed Insufficient air volume Rough idling after engine started Air-fuel ratio abnormal, abnormal combustion
4. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
5. When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) .
6. When DTC P1603 (Engine Stall History) is stored, DTC P1605 (Rough Idling) is also stored. When confirming freeze frame data, check DTC P1605. The ECM stores DTC P1605 first. Therefore, 5 sets of freeze frame data can be confirmed through DTC P1605, enabling the technician to obtain more information.
7. When confirming freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
8. Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data.
9. Inspections take into account the fact that the malfunction may not have reoccurred and place emphasis on checking the vehicle conditions present at the time when the malfunction occurred.
10. When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.

Inspection flow

Using freeze frame data, narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred.

P1603

Scheme 181

1

1. If the engine stalled when the intake air volume was low (during idling or deceleration), there may be a decrease in torque due to an incorrect air fuel ratio, etc.
2. If the engine stalled when the intake air volume was high (during driving or acceleration), there may be a major malfunction such as continuous misfire due to ignition stoppage, fuel injection stoppage, etc. and the torque drops to zero.

2

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

3

1. If the air fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the vehicle was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.

P1603 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

P1605

Scheme 182

1

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

2

1. If the air fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the vehicle was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.

P1605 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

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

Scheme 183

1. CHECK FOR ANY OTHER DTCS OUTPUT Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Refer to «DTC CHECK / CLEAR [07/2012 - ]»(ref-602560-S10249755982014030500000) . RESULT Result Proceed to Only DTC P1603 and/or P1605 is output A DTC and other DTCs P1603 and/or P1605 are output B HINT: If any DTCs other than P1603 or P1605 are output, troubleshoot those DTCs first. B --> See step 106 A: Go to next step
2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . OK Immobiliser Fuel Cut is OFF. RESULT Result Proceed to Abnormal A Normal B B --> See step 4 A: Go to next step
3. CHECK ENGINE IMMOBILISER SYSTEM Connect the Techstream to the DLC3. Start the engine. Idle the engine Enter the following menus: Powertrain / Engine / Data List / Immobiliser Communication and Immobiliser Fuel Cut. Check the Data List indication. RESULT Data List Item Result Immobiliser Communication ON Immobiliser Fuel Cut OFF NG --> See step 112 OK: Go to next step
4. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Problem Symptom Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Closed Throttle Position SW Engine Speed Total of Short FT and Long FT When idling or decelerating, engine speed slowly decreases (and engine stalls) All 5 sets of freeze frame data are ON Decreases slowly*1 All 5 sets of freeze frame data are +15% or more*2 Air suction Sensor malfunction (value from sensor too lean) Fuel supply problem A At least 1 of the 5 sets of freeze frame data is -15% or less*3 Sensor malfunction (value from sensor too rich) B All 5 sets of freeze frame data are from -15% to +15% Intake air volume insufficient Ignition timing incorrect C When idling or decelerating, engine speed rapidly decreases (and engine stalls) Decreases rapidly*1 - Injection stoppage, ignition stoppage Load from external parts D When accelerating or driving at constant speed, engine stalls*4 At least one is OFF - - Sensor malfunction Injection stoppage, ignition stoppage Fuel supply problem E HINT: *1: A rapid decrease in engine speed may be caused by an electrical fault in the shared wiring of all or a number of cylinders, an increase in load from external parts, etc. The engine speed is considered to have decreased rapidly if either of the following conditions applies. Otherwise, the engine speed is considered to have decreased slowly. In the freeze frame data, the decrease in engine speed from #3 to #5 is 400 RPM or more. In the freeze frame data, the engine speed at #5 is 120 RPM or less. If the vehicle speed is 15 km/h (9 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transmission. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) (except U880F) If the vehicle speed is 5 km/h (3 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transmission. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) (for U880F) *2: When a DTC is stored, feedback compensation increases because the air fuel ratio is determined to be lean. *3: When a DTC is stored, feedback compensation decreases because the air fuel ratio is determined to be rich. *4: This item should be checked when DTC P1603 is output and is not necessary to check when only P1605 is output. B --> See step 38 C --> See step 52 D --> See step 65 E --> See step 72 A: Go to next step
5. CHECK INTAKE SYSTEM Check for air leakage in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.]. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602708-S08291812542014030500000) . HINT: If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder. If Short FT and Long FT are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leakage may be present. OK There is no air leakage. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
6. CHECK PURGE VSV Disconnect the purge hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Purge Hose (to Canister) *2 Purge VSV Connector *3 Purge VSV Start the engine. Idle the engine. Disconnect the connector of the purge VSV. Check if air flows through the purge VSV. OK Air does not flow. HINT: When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs. Refer to «DTC CHECK / CLEAR [07/2012 - ]»(ref-602560-S10249755982014030500000) . NG --> See step 84 OK: Go to next step
7. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Stop Light Switch At least 1 of the 5 sets of freeze frame data is ON Air suction from brake booster A All 5 sets of freeze frame data are OFF - B B --> See step 10 A: Go to next step
8. READ VALUE USING TECHSTREAM (SHORT FT) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of Short FT #1 and Short FT #2 in the Data List while depressing the brake pedal. Standard Short FT #1 and Short FT #2 changes by +10% or less. HINT: When air leakage from the brake booster is present, the feedback compensation increases because the air fuel ratio becomes lean. NG --> See step 111 OK: Go to next step
9. PERFORM DRIVE TEST Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of Short FT #1, Long FT #1, Short FT #2 and Long FT #2 in the Data List. Standard Data List Condition Specified Condition Short FT #1 + Long FT #1 The conditions of the vehicle are matched to those present when the problem occurs -15 to +15% Short FT #2 + Long FT #2 The conditions of the vehicle are matched to those present when the problem occurs -15 to +15% NG --> See step 113 OK: Go to next step
10. CHECK IGNITION SYSTEM Perform ignition system On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602692-S01453638292014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
11. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Calculate Load Below 90% of the current value of the vehicle*1 Mass air flow meter sub-assembly A AFS Voltage B1S1 AFS Voltage B2S1 3.3 V or higher*2 Air fuel ratio sensor Wire harness or connector B HINT: *1: If the mass air flow meter sub-assembly is malfunctioning and incorrectly measures the intake air volume to be less than the actual volume, the freeze frame data will show a low engine load value. *2: If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is lean, the actual air fuel ratio will become rich and the engine may stall. B --> See step 15 A: Go to next step
12. CHECK MASS AIR FLOW METER SUB-ASSEMBLY Remove the mass air flow meter sub-assembly. Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly. RESULT Result Proceed to Visible foreign matter is not present A Visible foreign matter is present B B --> See step 98 A: Go to next step
13. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0102 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S07387497742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
14. PERFORM DRIVE TEST Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of Calculate Load in the Data List. Standard Data List Specified Condition Calculate Load 90 to 110% of the current value of the vehicle RESULT Result Proceed to Abnormal A Normal B B --> See step 18 A --> See step 122
15. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes. Idle the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / AFS Voltage B1S1 and AFS Voltage B2S1. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume. Standard Tester Display Specified Condition Control the Injection Volume for A/F Sensor (+12.5%) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume for A/F Sensor (-12.5%) Air fuel ratio sensor output voltage is higher than 3.4 V RESULT Result Proceed to Abnormal A Normal B HINT: 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. B --> See step 18 A: Go to next step
16. CHECK TERMINAL VOLTAGE (+B OF AIR FUEL RATIO SENSOR) Check the harnesses and connectors, referring to DTC P0031 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602701-S01240397742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR AIR FUEL RATIO SENSOR POWER SOURCE CIRCUIT OK: Go to next step
17. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Check the harnesses and connectors, referring to DTC P2237 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S40526000942014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
18. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Proceed to Initial Engine Coolant Temp, Ambient Temp for A/C, Initial Intake Air Temp Difference in temperature between each item is less than 10°C (18°F) *1 A Difference in temperature between each item is 10°C (18°F) or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 21 A: Go to next step
19. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature sensor B Range C - C HINT: This step is not directly related to engine stall. B --> See step 22 C --> See step 24 A: Go to next step
20. INSPECT THERMOSTAT Inspect the thermostat. Refer to «INSPECTION [03/2012 - ]»(ref-602691-S14423638232014030500000) . RESULT Result Proceed to Abnormal A Normal B B --> See step 22 A --> See step 86
21. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Coolant Temp 120°C (248°F) or higher Engine coolant temperature sensor A Engine coolant temperature is lower than outside temperature* by 15°C (27°F) or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B HINT: *: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 24 A: Go to next step
22. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . NG --> See step 96 OK: Go to next step
23. CHECK HARNESS AND CONNECTOR (ECM - ENGINE COOLANT TEMPERATURE SENSOR) Disconnect the ECM connector. Disconnect the engine coolant temperature sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D1-76 (THW) - D11-2 Always Below 1 ohms D1-97 (ETHW) - D11-1 Always Below 1 ohms D1-76 (THW) or D11-2 - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
24. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to EVAP (Purge) VSV At least 1 of the 5 sets of freeze frame data is not 0% Purge VSV A All 5 sets of freeze frame data are 0% - B HINT: If the purge VSV is stuck closed, air fuel ratio compensation by the purge VSV is incorrectly adjusted, and then the air fuel ratio becomes lean and the engine may stall. B --> See step 33 A: Go to next step
25. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the purge hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV *2 Purge Hose (to Canister) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control. Operate the purge VSV and check the air flow. OK Activate the VSV for Evap Control Specified Condition ON Air flows OFF Air does not flow RESULT Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. B --> See step 33 A: Go to next step
26. INSPECT PURGE VSV Inspect the purge VSV. Refer to «INSPECTION [03/2012 - ]»(ref-602694-S17624833682014030500000) . NG --> See step 88 OK: Go to next step
27. CHECK TERMINAL VOLTAGE (PURGE VSV POWER SOURCE) Disconnect the purge VSV connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D6-1 - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI MAIN RELAY) OK: Go to next step
28. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Check harness and connector. HINT: Refer to DTC P0443 inspection procedure for Mexico models. Refer to «PROCEDURE - Step 4»(ref-602702-S12255040712014030500000) . Refer to EVAP System inspection procedure except Mexico models. Refer to «PROCEDURE - Step 26»(ref-602700-S21469478812014030500000) . Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
29. CLEAR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR [07/2012 - ]»(ref-602560-S10249755982014030500000) . NEXT: Go to next step
30. READ VALUE USING TECHSTREAM (EVAP (PURGE) VSV) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine for 15 minutes or more. Using the Techstream, read the value of EVAP (Purge) VSV in the Data List. Standard Data List Specified Condition EVAP (Purge) VSV Value other than 0% is displayed RESULT Result Proceed to Abnormal A Normal B B --> See step 114 A: Go to next step
31. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the purge hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV *2 Purge Hose (to Canister) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control. Operate the purge VSV and check the air flow. OK Activate the VSV for Evap Control Specified Condition ON Air flows OFF Air does not flow RESULT Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. B --> See step 115 A: Go to next step
32. CHECK CONNECTOR CONNECTION CONDITION (ECM) Check the ECM connector connection condition. HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> RECONNECT CONNECTOR CORRECTLY OK --> See step 89
33. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. Check whether the fuel pump operating sound occurs when performing the Active Test on the Techstream. Standard Techstream Operation Specified Condition ON Operating sound heard OFF Operating sound not heard Result Result Specified Condition Abnormal A Normal B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel pump operating noise is abnormal, proceed to step 34. B --> See step 35 A: Go to next step
34. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S37584344142014030500000) . NG --> See step 109 OK --> See step 90
35. CHECK FUEL SYSTEM Check the fuel system. Check the fuel pump operation. Check the fuel leaks. Check the fuel pressure. Perform the Active Test [Control the All Cylinders Fuel Cut]. HINT: For the fuel system On-vehicle Inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [07/2012 - ]»(ref-602712-S25985836132014030500000) . RESULT Result Proceed to Abnormal A Normal B B --> See step 116 A: Go to next step
36. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck. RESULT Result Proceed to There is no foreign matter and no signs that fuel pump was stuck A There is foreign matter or signs that fuel pump was stuck B HINT: If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter. B --> REPAIR OR REPLACE FUEL SYSTEM A: Go to next step
37. CHECK FUEL SYSTEM Check the fuel system. Check the fuel pump operation. Check the fuel leaks. Check the fuel pressure. Perform the Active Test [Control the All Cylinders Fuel Cut]. HINT: For the fuel system On-vehicle Inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [07/2012 - ]»(ref-602712-S25985836132014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK --> END
38. CHECK IGNITION SYSTEM Perform ignition system On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602692-S01453638292014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
39. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Calculate Load 110% or more of the current value of the vehicle*1 Mass air flow meter sub-assembly A AFS Voltage B1S1 AFS Voltage B2S1 Below 3.3 V*2 Air fuel ratio sensor Harness and connector B Both freeze frame data items listed above Values are other than above - C HINT: *1: If the mass air flow meter sub-assembly is malfunctioning and incorrectly measures the intake air volume to be higher than the actual volume of air flowing through the intake air surge tank assembly, the freeze frame data will show a high engine load value. *2: As the air fuel ratio sensor output is low before the sensor warms up, the value at that time cannot be used for diagnosis. If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is rich, the actual air fuel ratio will become lean and the engine may stall. B --> See step 43 C --> See step 46 A: Go to next step
40. CHECK MASS AIR FLOW METER SUB-ASSEMBLY Remove the mass air flow meter sub-assembly. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000) . Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly. RESULT Result Proceed to Visible foreign matter is not present A Visible foreign matter is present B B --> See step 85 A: Go to next step
41. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0102 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S07387497742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
42. PERFORM DRIVE TEST Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of Calculate Load in the Data List. Standard Data List Specified Condition Calculate Load 90 to 110% of the current value of the vehicle NG --> See step 117 OK: Go to next step
43. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes. Idle the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / AFS Voltage B1S1 and AFS Voltage B2S1. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume. Standard Tester Display Specified Condition Control the Injection Volume for A/F Sensor (+12.5%) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume for A/F Sensor (-12.5%) Air fuel ratio sensor output voltage is higher than 3.4 V RESULT Result Proceed to Abnormal A Normal B HINT: 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. B --> See step 46 A: Go to next step
44. CHECK TERMINAL VOLTAGE (+B OF AIR FUEL RATIO SENSOR) Check the harnesses and connectors, referring to DTC P0031 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602701-S01240397742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR AIR FUEL RATIO SENSOR POWER SOURCE CIRCUIT OK: Go to next step
45. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Check the harnesses and connectors, referring to DTC P2237 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S40526000942014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
46. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Proceed to Initial Engine Coolant Temp, Ambient Temp for A/C, Initial Intake Air Temp Difference in temperature between each item is less than 10°C (18°F)*1 A Difference in temperature between each item is 10°C (18°F) or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 49 A: Go to next step
47. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature B Range C - C HINT: This step is not directly related to engine stall. B --> See step 50 C --> See step 80 A: Go to next step
48. INSPECT THERMOSTAT Inspect the thermostat. Refer to «INSPECTION [03/2012 - ]»(ref-602691-S14423638232014030500000) . RESULT Result Proceed to Abnormal A Normal B HINT: This step is not directly related to engine stall. B --> See step 50 A --> See step 93
49. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Coolant Temp 120°C (248°F) or higher Engine coolant temperature sensor A Engine coolant temperature is lower than outside temperature* by 15°C (27°F) or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B HINT: *: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 81 A: Go to next step
50. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . NG --> See step 94 OK: Go to next step
51. CHECK HARNESS AND CONNECTOR (ECM - ENGINE COOLANT TEMPERATURE SENSOR) Disconnect the ECM connector. Disconnect the engine coolant temperature sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D1-76 (THW) - D11-2 Always Below 1 ohms D1-97 (ETHW) - D11-1 Always Below 1 ohms D1-76 (THW) or D11-2 - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 123
52. CHECK IGNITION SYSTEM Perform ignition system On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602692-S01453638292014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
53. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Total of ISC Learning Value and ISC Feedback Value Below 80% of the current value of the vehicle Intake air volume insufficient A 80% or more of the current value of the vehicle B B --> See step 56 A: Go to next step
54. CHECK INTAKE SYSTEM Check for air leakage in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.]. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602708-S08291812542014030500000) . HINT: If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder. If Short FT and Long FT are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leakage may be present. OK There is no air leakage. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
55. CHECK INTAKE SYSTEM Check the intake system. Inspect the brake booster assembly. Refer to «INSPECTION [03/2012 - ]»(ref-602687-S24482525732014030500000) . Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602706-S13118102442014030500000) . Check the PCV hose. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 2»(ref-602710-S40758921792014030500000) . Inspect the PCV valve. Refer to «INSPECTION [03/2012 - ]»(ref-602694-S14185221512014030500000) . Inspect the purge VSV. Refer to «INSPECTION [03/2012 - ]»(ref-602694-S17624833682014030500000) . RESULT Result Proceed to Abnormal A Normal B B --> See step 60 A --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
56. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR) Perform the Active Test, referring to DTC P0011 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602701-S04176183162014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems. If the camshaft timing oil control valve is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall. NG --> See step 95 OK: Go to next step
57. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0010 inspection procedure. Refer to «PROCEDURE - Step 5»(ref-602701-S07810858962014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
58. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR) Perform the Active Test, referring to DTC P0014 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602701-S38137208752014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems. If the camshaft timing oil control valve is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall. NG --> See step 110 OK: Go to next step
59. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0013 inspection procedure. Refer to «PROCEDURE - Step 5»(ref-602701-S20724975722014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
60. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to IGN Advance Knock Correct Learn Value Differs from the current value of the vehicle by 10 deg or more Less than 3 deg(CA) Engine coolant temperature sensor Mass air flow meter sub-assembly Knock control sensor A 3 deg(CA) or more - B Differs from the current value of the vehicle by less than 10 deg - - B --> See step 118 A: Go to next step
61. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . NG --> See step 87 OK: Go to next step
62. CHECK HARNESS AND CONNECTOR (ECM - ENGINE COOLANT TEMPERATURE SENSOR) Disconnect the ECM connector. Disconnect the engine coolant temperature sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D1-76 (THW) - D11-2 Always Below 1 ohms D1-97 (ETHW) - D11-1 Always Below 1 ohms D1-76 (THW) or D11-2 - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
63. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY (INTAKE AIR TEMPERATURE SENSOR) Inspect the mass air flow meter sub-assembly (intake air temperature sensor). Refer to «INSPECTION [03/2012 - ]»(ref-602706-S07511476432014030500000) . HINT: If the intake air temperature sent to the ECM is higher than the standard due to the mass air flow meter sub-assembly (intake air temperature sensor) malfunctioning, the ignition timing may become delayed. NG --> See step 92 OK: Go to next step
64. READ VALUE USING TECHSTREAM (IGN ADVANCE AND KNOCK CORRECT LEARN VALUE) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of IGN Advance and Knock Correct Learn Value in the Data List. RESULT Freeze Frame Data Item for DTC P1605 Proceed to IGN Advance Knock Correct Learn Value Differs from the current value of the vehicle by 10 deg or more Less than 3 deg(CA) A 3 deg(CA) or more B Differs from the current value of the vehicle by less than 10 deg - HINT: If the results of the checks performed in steps 56 to 64 were all normal and the sum of ISC Feedback Value and ISC Learning Value in the Data List is 120% of the normal value or more, check for carbon deposits in the throttle body assembly. If there are carbon deposits, clean them off to finish the troubleshooting procedure. B --> END A --> See step 97
65. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Check the harness and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S25530649312014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 99 OK: Go to next step
66. CHECK IGNITION SYSTEM Perform ignition system On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602692-S01453638292014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
67. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to A/C Signal Air Conditioner FB Val Power Steering Signal A/C Signal display does not change from OFF Value displayed for Air Conditioner FB Val does not increase Changes from OFF to ON Power steering system A*1 B*2 Does not change from OFF - A/C Signal display changes from OFF to ON*3 Value displayed for Air Conditioner FB Val increases Changes from OFF to ON Power steering system Does not change from OFF A/C system C *1: except U880F *2: for U880F HINT: *3: Check not only the ON/OFF state of the air conditioner but also the change in air conditioner load. The normal value for the ISC learned value is engine displacement (liters) x 0.9. Even if the results are normal, the power steering system or A/C system may have been malfunctioning. If there are no problems with other parts, inspect the power steering system or A/C system. B --> See step 70 C --> See step 100 A: Go to next step
68. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Electrical Load Signal 1 (2) or Electric Load Feedback Val Electric Load Feedback Val Difference between Engine Speed and SPD (NT) Vehicle Speed Electrical Load Signal 1 (2) display changes from OFF to ON*3, or value displayed for Electric Load Feedback Val increases*3 Value displayed for Electric Load Val changes - - Electrical load signal circuit D Value displayed for Electric Load Val does not change At least 1 of the 5 sets of freeze frame data is less than 100 RPM Less than 15 km/h (9 mph) A/T system B*1 C*2 15 km/h (9 mph) or more - A All 5 sets of freeze frame data are 100 RPM or more - - A Electrical Load Signal 1 (2) display does not change from OFF, or value displayed for Electric Load Feedback Val does not increase - At least 1 of the 5 sets of freeze frame data is less than 100 RPM Less than 15 km/h (9 mph) A/T system B*1 C*2 15 km/h (9 mph) or more - A All 5 sets of freeze frame data are 100 RPM or more - - A *1: for 2WD *2: for AWD HINT: *3: If the Electrical Load Signal 1 (2) display changes from OFF to ON, or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM. If the vehicle speed is 15 km/h (9 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transmission. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) The normal value for the ISC learned value is engine displacement (liters) x 0.9. Even if the results are normal, the electrical load signal system and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the electrical load system and/or A/T system. B --> See step 107 C --> See step 124 D --> See step 108 A: Go to next step
69. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Shift SW Status (P Range) Shift SW Status (N Range) Neutral Position SW Signal P and N position are both OFF in at least one data set ON when shift lever in D or R Park/Neutral position switch assembly A*1 B*2 OFF when shift lever in D or R A/T system C*1 D*2 All 5 sets of freeze frame data are ON - - E *1: for 2WD *2: for AWD HINT: Even if the results are normal, the park/neutral position switch assembly and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch assembly and/or A/T system. B --> See step 125 C --> See step 101 D --> See step 124 E --> See step 119 A --> See step 102
70. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Electrical Load Signal 1 (2) or Electric Load Feedback Val Electric Load Feedback Val Difference between Engine Speed and SPD (NT) Vehicle Speed Electrical Load Signal 1 (2) display changes from OFF to ON*3, or value displayed for Electric Load Feedback Val increases*3 Value displayed for Electric Load Val changes - - Electrical load signal circuit C Value displayed for Electric Load Val does not change At least 1 of the 5 sets of freeze frame data is less than 100 RPM Less than 5 km/h (3 mph) A/T system B 5 km/h (3 mph) or more - A All 5 sets of freeze frame data are 100 RPM or more - - A Electrical Load Signal 1 (2) display does not change from OFF, or value displayed for Electric Load Feedback Val does not increase - At least 1 of the 5 sets of freeze frame data is less than 100 RPM Less than 5 km/h (3 mph) A/T system B 5 km/h (3 mph) or more - A All 5 sets of freeze frame data are 100 RPM or more - - A HINT: *1: If the Electrical Load Signal 1 (2) display changes from OFF to ON, or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM. If the vehicle speed is 5 km/h (3 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transmission. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) The normal value for the ISC learned value is engine displacement (liters) x 0.9. Even if the results are normal, the electrical load signal system and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the electrical load system and/or A/T system. B --> See step 126 C --> See step 108 A: Go to next step
71. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Shift SW Status (P Range) Shift SW Status (N Range) Neutral Position SW Signal P and N position are both OFF in at least one data set ON when shift lever in D or R Park/Neutral position switch assembly A OFF when shift lever in D or R A/T system B All 5 sets of freeze frame data are ON - - C HINT: Even if the results are normal, the park/neutral position switch assembly and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch assembly and/or A/T system. B --> See step 126 C --> See step 119 A --> See step 127
72. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Throttle Sensor Position, Calculate Load Calculate Load decreases while Throttle Sensor Position increases Mass air flow meter sub-assembly A Calculate Load does not decrease while Throttle Sensor Position increases - B B --> See step 76 A: Go to next step
73. CHECK MASS AIR FLOW METER SUB-ASSEMBLY Remove the mass air flow meter sub-assembly. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000) . Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly. RESULT Result Proceed to Visible foreign matter is not present A Visible foreign matter is present B B --> See step 103 A: Go to next step
74. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0102 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S07387497742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
75. PERFORM DRIVE TEST Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read the value of Calculate Load in the Data List. Standard Data List Specified Condition Calculate Load 90 to 110% of the current value of the vehicle NG --> See step 120 OK: Go to next step
76. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Check the harness and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S25530649312014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 104 OK: Go to next step
77. CHECK IGNITION SYSTEM Perform ignition system On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602692-S01453638292014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK: Go to next step
78. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. Check whether the fuel pump operating sound occurs when performing the Active Test on the Techstream. Standard Techstream Operation Specified Condition ON Operating sound heard OFF Operating sound not heard Result Result Specified Condition Abnormal A Normal B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel pump operating noise is abnormal, proceed to step 77. B --> See step 80 A: Go to next step
79. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S37584344142014030500000) . NG --> See step 91 OK --> See step 105
80. CHECK FUEL SYSTEM Check the fuel system. Check the fuel pump operation. Check the fuel leaks. Check the fuel pressure. Perform the Active Test [Control the All Cylinder Fuel Cut]. HINT: For the fuel system On-vehicle Inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [07/2012 - ]»(ref-602712-S25985836132014030500000) . RESULT Result Proceed to Abnormal A Normal B B --> See step 121 A: Go to next step
81. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck. RESULT Result Proceed to There is no foreign matter and no signs that fuel pump was stuck A There is foreign matter or signs that fuel pump was stuck B HINT: If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter. B --> REPAIR OR REPLACE FUEL SYSTEM A: Go to next step
82. CHECK FUEL SYSTEM Check the fuel system. Check the fuel pump operation. Check the fuel leaks. Check the fuel pressure. Perform the Active Test [Control the All Cylinder Fuel Cut]. HINT: For the fuel system On-vehicle Inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [07/2012 - ]»(ref-602712-S25985836132014030500000) . NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK --> END
83. CLEAR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR [07/2012 - ]»(ref-602560-S10249755982014030500000) . NEXT --> END
84. REPLACE PURGE VSV. Refer to «REMOVAL [07/2012 - ]»(ref-602694-S06668508842014030500000)
85. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
86. REPLACE THERMOSTAT. Refer to «REMOVAL [07/2012 - ]»(ref-602691-S21110107612014030500000)
87. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL [07/2012 - ]»(ref-602706-S30508392702014030500000)
88. REPLACE PURGE VSV. Refer to «REMOVAL [07/2012 - ]»(ref-602694-S06668508842014030500000)
89. REPLACE ECM. Refer to «REMOVAL [07/2012 - ]»(ref-602706-S02492123622014030500000)
90. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-602700-S23721397892014030500000)
91. REPLACE FUEL PUMP. Refer to «REMOVAL [07/2012 - ]»(ref-602707-S41220726602014030500000)
92. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
93. REPLACE THERMOSTAT. Refer to «REMOVAL [07/2012 - ]»(ref-602691-S21110107612014030500000)
94. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL [07/2012 - ]»(ref-602706-S30508392702014030500000)
95. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT). Refer to «REMOVAL [07/2012 - ]»(ref-602706-S19350200072014030500000)
96. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL [07/2012 - ]»(ref-602706-S30508392702014030500000)
97. CHECK KNOCK SENSOR CIRCUIT. Refer to «DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor); DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor); DTC P0332: Knock Sensor 2 Circuit Low Input (Bank 2); DTC P0333: Knock Sensor 2 Circuit High Input (Bank 2)»(ref-602702-S25266506542014030500000)
98. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
99. REPAIR FUEL INJECTOR ASSEMBLY POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 4»(ref-602700-S25530649312014030500000)
100. CHECK AIR CONDITIONING SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - ]»(ref-602709-S14396228602014030500000)
101. CHECK AUTOMATIC TRANSMISSION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2012 - ]»(ref-602563-S10832801722014030500000)
102. INSPECT PARK/NEUTRAL POSITION SWITCH. Refer to «INSPECTION [03/2012 - ]»(ref-602716-S06123347362014030500000)
103. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
104. REPAIR FUEL INJECTOR ASSEMBLY POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 4»(ref-602700-S25530649312014030500000)
105. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-602700-S23721397892014030500000)
106. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [07/2012 - ]»(ref-602699-S06530808582014030500000)
107. CHECK AUTOMATIC TRANSMISSION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2012 - ]»(ref-602563-S10832801722014030500000)
108. CHECK GENERATOR CIRCUIT. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602693-S36240528652014030500000)
109. REPLACE FUEL PUMP. Refer to «REMOVAL [07/2012 - ]»(ref-602707-S41220726602014030500000)
110. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT). Refer to «REMOVAL [07/2012 - ]»(ref-602706-S19350200072014030500000)
111. INSPECT BRAKE BOOSTER ASSEMBLY. Refer to «INSPECTION [03/2012 - ]»(ref-602687-S24482525732014030500000)
112. CHECK ENGINE IMMOBILISER SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2012 - ]»(ref-602561-S34991191932014030500000)
113. INSPECT BRAKE BOOSTER ASSEMBLY. Refer to «INSPECTION [03/2012 - ]»(ref-602687-S24482525732014030500000)
114. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
115. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
116. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
117. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
118. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
119. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
120. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
121. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
122. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
123. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [03/2012 - ]»(ref-602560-S33270940242014030500000)
124. CHECK AUTOMATIC TRANSMISSION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2012 - ]»(ref-602564-S15974231232014030500000)
125. INSPECT PARK/NEUTRAL POSITION SWITCH. Refer to «INSPECTION [03/2012 - ]»(ref-602717-S00154869312014030500000)
126. CHECK AUTOMATIC TRANSMISSION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2012 - ]»(ref-602573-S35006905612014030500000)
127. INSPECT PARK/NEUTRAL POSITION SWITCH. Refer to «INSPECTION [07/2012 - ]»(ref-602718-S30764856712014030500000)

HINT

1. In contrast to normal malfunction diagnosis for components, circuits and systems, DTC P1604 is used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as starting difficulty. As the DTC can be stored as a result of certain user actions, even if the DTC is output, if the customer makes no mention of problems, clear the DTC without performing any troubleshooting and return the vehicle to the customer.
2. If any other DTCs are output, perform troubleshooting for those DTCs first.
3. When the Data List item "Immobiliser Fuel Cut" is ON, the engine cannot be started.
4. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
5. When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) .
6. When confirming the freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
7. Try to start the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and compare it with the freeze frame data.
8. If the malfunction does not reoccur, carefully check the vehicle conditions from when the malfunction occurred using freeze frame data.
9. When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.
10. If the same inspection or replacement procedure appears 2 times when performing an inspection procedure, it is not necessary to repeat the procedure the second time.

Scheme 184

Scheme 185

Scheme 186

1. Malfunction Recurrence and Inspection Areas Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown. The engine speed recorded in the freeze frame data is 0 RPM (the engine does not crank). HINT: One of the following problems may be present: battery depletion, excess engine friction, a starter malfunction or a crankshaft position sensor malfunction. If the battery voltage is less than 6 V during cranking, there is a high probability that engine friction is abnormal. If the battery voltage drops to 5 V or less when starting the engine, the battery may be malfunctioning. If the battery voltage fluctuates while cranking the engine, it can be concluded that cranking is being performed. When the engine speed is 0 RPM, the crankshaft position sensor and/or an ECM may be malfunctioning. All engine speeds recorded in the freeze frame data are between 60 and 250 RPM (the engine cranks but there is no combustion). HINT: If the engine speed is between 60 and 250 RPM (no initial combustion), there may be a wiring problem or a complete failure of an ignition or fuel system part. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and the engine may not be able to be started. The engine speed recorded in the freeze frame data is 250 RPM or higher (the initial combustion and starter turn off timing is too late). HINT: If the engine speed is 250 RPM or higher (combustion occurs but the initial combustion and starter turnoff timing is too late), the fuel injection volume is often incorrect (too low or too high) and determining the cause of the malfunction is often difficult. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and engine starting trouble may occur. If Long FT is incorrect, there may be a fuel supply problem due to the injectors or fuel pump being clogged, etc. If the engine cranking speed is too high, compression loss may have occurred due to carbon interfering with the valve operation. When the malfunction (starting difficulty) can be reproduced, or malfunction conditions are known, perform the following inspections ("Problem symptoms" and "Systems to inspect") Problem symptoms The engine does not crank. HINT: The starter is normal if a noise that indicates the starter pinion gear is extending is heard. The battery may be fully depleted or there may be excess engine friction. The engine cranking speed is abnormal. HINT: If the engine cranking speed is too high (for example, 300 RPM or higher with no combustion), compression loss may have occurred because carbon interfered with valve operation, etc. There is no initial combustion. HINT: If there is no initial combustion, there is probably a wiring problem or an ignition or fuel system part malfunction. The engine stalls after starter turn off. HINT: If the engine stalls after starter turn off, the air fuel ratio may be incorrect or the VVT may have a problem returning. The initial combustion and starter turn off occur late. HINT: If the initial combustion and starter turn off occur late, the fuel injection volume is probably incorrect (too low or too high). HINT: Causes of fuel system malfunctions according to conditions present at the time of the malfunction. When 2 to 3 minutes have elapsed after stopping the engine: Fuel pressure loss due to the pressure regulator failing to maintain the fuel pressure. When 15 to 120 minutes have elapsed after stopping the engine: Problem with injector fuel seal. When a long time has elapsed after stopping the engine: Pressure regulator is stuck open. Systems to inspect. Intake system Ignition system Fuel system
2. INSPECTION FLOW Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown. Freeze Frame Data Item Result Suspected Area Procedure Engine Speed 0 RPM (no engine cranking at all) Battery fully depleted Engine assembly (excess friction) Starter assembly Immobiliser system Crankshaft position sensor ECM 4 to 9 60 to 250 RPM (engine cranks but no initial combustion*1) Fuel pump control system Ignition system Engine coolant temperature sensor Fuel injection system 10 to 14 250 RPM or higher (combustion occurs but initial combustion and starter turnoff*2 occur late) Engine assembly (compression loss) Fuel injection system Fuel pump control system 15 to 23 HINT: *1: First combustion after cranking begins. *2: Condition when engine speed increases and starter can be turned off. When the malfunction (starting difficulty) can be reproduced, or when malfunction conditions are known. Problem symptoms Problem Symptom Suspected Area Suspected Component Procedure The engine does not crank Battery malfunction Battery fully depleted 26 to 31 Starting system Starter assembly (includes pinion gear wear or tooth damage) Starting system Engine assembly Engine assembly (excess friction) Drive plate and ring gear sub-assembly wear or tooth damage Cranking speed too low Battery malfunction Battery fully depleted 32 to 34 Starting system Starter assembly Engine assembly Engine assembly (excess friction) Cranking speed too high Engine assembly Engine assembly (compression loss) There is no initial combustion Fuel supply problem Cannot maintain pressure due to pressure regulator malfunction Fuel injector assembly leak Fuel leak from fuel line Fuel pump control system Fuel pump 35 to 48 Ignition system malfunction Spark plug Crankshaft position sensor Ignition coil assembly Engine stalls after starter turnoff Air suction Intake system connections 49 to 54 Deposits in throttle with motor body assembly Throttle with motor body assembly VVT valve does not return properly Camshaft timing oil control valve assembly Mass air flow meter sub-assembly malfunction Mass air flow meter sub-assembly The initial combustion and starter turnoff occur late Engine coolant temperature sensor malfunction Engine coolant temperature sensor 55 to 68 Mass air flow meter sub-assembly malfunction Mass air flow meter sub-assembly Abnormal air fuel ratio learning value Air fuel ratio sensor Deviation from fuel injection characteristics Fuel injector assembly Wet-fouled or dry-fouled spark plug Spark plug Lack of fuel pressure Pressure regulator Fuel pump Fuel pump control system Systems to inspect. Troubleshooting by System Suspected Area Suspected Component Procedure Fuel system troubleshooting A Abnormal A/F learning value Fuel injector assembly 87 to 94 95 to 102 Rough idling Crankshaft position sensor Abnormal fuel pressure Fuel Fuel leak from fuel line Fuel pump Pressure regulator Fuel system troubleshooting B Abnormal concentration of HC in surge tank Purge VSV system Fuel injector assembly 103 to 105 Fuel system troubleshooting C Injection signal system malfunction Fuel injector assembly Crankshaft position sensor VVT sensor ECM 70 to 74 Intake system troubleshooting Difference between ISC target value and opening angle when idling Engine assembly (compression loss) Valve timing Engine coolant temperature sensor ECM 84 to 86 106 to 108 Ignition system troubleshooting Crankshaft position sensor and/or VVT sensor signal malfunction Crankshaft position sensor system (including sensor installation) VVT sensor system (including sensor installation) ECM 75 to 83 109 to 117 NOTE: Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 187

1. CHECK ANY OTHER DTCS OUTPUT AND RECORD FREEZE FRAME DATA (IN ADDITION TO DTC P1604) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs and record the Freeze Frame Data. HINT: This freeze frame data shows the actual engine conditions when engine starting trouble occurred. When confirming the freeze frame data, be sure to check all 5 data sets of freeze frame data. The fourth set of freeze frame data is the data recorded when then the DTC is stored. RESULT Result Proceed to DTC P1604 is output A DTC P1604 and other DTCs are output B B --> See step 118 A: Go to next step
2. CHECK ENGINE IMMOBILISER SYSTEM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Immobiliser Fuel Cut. Read the value displayed on the Techstream. OK Immobiliser Fuel Cut is OFF HINT: If the engine is cranked immediately after reconnecting the battery cable (key verification for engine immobiliser system not completed), the engine cannot be started. Key verification needs to wait for several seconds after turning the engine switch on (IG). NG --> See step 119 OK: Go to next step
3. CHECK MALFUNCTION CONDITION Confirm the problem symptoms. RESULT Result Proceed to Freeze frame data exists, but the starting difficulty cannot be reproduced and it is unknown what kind of starting difficulty occurred A The problem symptoms can be reproduced, or the malfunction conditions are known B B --> See step 25 A: Go to next step
4. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) . RESULT Freeze Frame Data Item Suspected Area Proceed to Engine Speed Battery Voltage All 5 sets of freeze frame data are 0 RPM (no engine cranking at all) Minimum voltage is less than 5 V Battery fully depleted A Minimum voltage is 5 V or higher Starter assembly malfunction Crankshaft position sensor system Excess engine friction ECM B 60 to 250 RPM (engine cranks but no initial combustion) - Fuel pump control system Ignition system Engine coolant temperature sensor Fuel injection system C 250 RPM or higher (combustion occurs but initial combustion and starter turnoff occur late) - Engine assembly Engine coolant temperature sensor Fuel injection system Fuel pump control system D Freeze Frame Data Item Suspected Area Proceed to Low Rev for Eng Start ON exists Intake system connections Throttle with motor body assembly Camshaft timing oil control valve assembly Mass air flow meter sub-assembly E HINT: When DTC P1604 is stored, either "Engine Start Hesitation"*1 or "Low Rev for Eng Start"*2 in the Freeze Frame Data will be ON. If "Low Rev for Eng Start" is ON, proceed to E. *1: This value turns ON when the engine speed does not reach a certain value for a certain period of time when starting the engine. *2: This value turns ON when the engine stalls immediately after starting the engine. If "Low Rev for Eng Start" is ON, as there is a possibility that the low engine speed or engine stall was caused by the user, confirm the following freeze frame data items. Immobiliser Fuel Cut Engine Speed (Starter Off) Shift SW Status (R, D Range) B --> See step 5 C --> See step 10 D --> See step 15 E --> See step 49 A --> CHARGE OR REPLACE BATTERY
5. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Battery Voltage Minimum voltage is 6 V or higher and voltage does not fluctuate*1 Starter system A Minimum voltage is 6 V or higher and voltage fluctuates*2, *3 Crankshaft position sensor system ECM B Minimum voltage is 5 to 6 V*4 Excess engine friction Battery fully depleted C HINT: *1: The 5 sets of freeze frame data show approximately the same battery voltage. *2: The 5 sets of freeze frame data show different battery voltages. *3: If the voltage fluctuates, it can be determined that cranking is being performed. When the engine speed is 0 RPM, the crankshaft position sensor system and/or the ECM may be malfunctioning. *4: There may be excess engine friction. Make sure that the crankshaft rotates smoothly when turning it by hand. Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts. B --> See step 6 C --> CHECK AND REPAIR ENGINE ASSEMBLY OR BATTERY A --> See step 120
6. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the tightening and installation condition of the crankshaft position sensor bolt. Check the connection of the crankshaft position sensor connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
7. INSPECT CRANKSHAFT POSITION SENSOR Disconnect the crankshaft position sensor connector. Check for oil on the connector terminals. OK No oil on the terminals. NG --> See step 121 OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0335 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S10552566402014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
10. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) . RESULT Freeze Frame Data Item Suspected Area Proceed to Coolant Temp, Intake Air Coolant Temp Fuel Pump/Speed Status Difference between Coolant Temp and Intake Air is 10°C (18°F) or higher*1 Coolant Temp is 125°C (257°F) or higher, or lower than outside temperature*3 by 15°C (27°F) or higher - Engine coolant temperature sensor A Other than above All 5 sets of freeze frame data are ON - B At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system C Difference between Coolant Temp and Intake Air is less than 10°C (18°F) *2 - At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system C All 5 sets of freeze frame data are ON - B HINT: *1: A long time had not elapsed after stopping the engine. *2: A long time had elapsed after stopping the engine. *3: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 11 C --> See step 122 A --> See step 133
11. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Disconnect the fuel pump connector. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition P11-4 - Body ground Active Test is being performed 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Pump) HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 122 OK: Go to next step
12. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S02932314502014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 143 OK: Go to next step
13. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for fuel leakage from the fuel pipes. RESULT Result Proceed to Fuel leakage or signs of fuel leakage are present A No fuel leakage or signs of fuel leakage B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected. B --> See step 14 A --> REPAIR OR REPLACE FUEL LINE
14. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck. Result Result Proceed to There is foreign matter or signs that fuel pump was stuck A There is no foreign matter and no signs that fuel pump was stuck B HINT: If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter. B --> See step 24 A --> REPAIR OR REPLACE FUEL SYSTEM
15. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) . RESULT Freeze Frame Data Item Suspected Area Proceed to Coolant Temp, Intake Air Coolant Temp Long FT #1, Long FT #2 Engine Speed Difference between Coolant Temp and Intake Air is 10°C (18°F) or higher Coolant Temp is 125°C (257°F) or more, or lower than outside temperature*2 by 15°C (27°F) or higher - - Engine coolant temperature sensor A Other than above -15% or less, or +15% or higher - Fuel pump control system Fuel injector assembly B -15 to +15% Minimum speed is 300 RPM or higher*1 Engine assembly C Minimum speed is less than 300 RPM Fuel system Intake air system D Difference between Coolant Temp and Intake Air is less than 10°C (18°F) - -15% or less, or +15% or higher - Fuel pump control system Fuel injector assembly B -15 to +15% Minimum speed is 300 RPM or higher*1 Engine assembly C Minimum speed is less than 300 RPM Fuel system Intake air system D HINT: *1: Compression loss may have occurred in the engine assembly. *2: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 16 C --> CHECK AND REPAIR ENGINE ASSEMBLY D --> See step 18 A --> See step 133
16. INSPECT FUEL INJECTOR ASSEMBLY Check that no carbon is stuck to the fuel injector assembly. OK No carbon present. NG --> See step 123 OK: Go to next step
17. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck. Result Result Proceed to There is foreign matter or signs that fuel pump was stuck A There is no foreign matter and no signs that fuel pump was stuck B HINT: If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter. B --> See step 24 A --> REPAIR OR REPLACE FUEL SYSTEM
18. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA [03/2012 - 07/2012]»(ref-602560-S24209562882014030500000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Coolant Temp Engine coolant temperature is 40°C (104°F) or less*1 Pressure regulator A Engine coolant temperature is 40 to 90°C (104 to 194°F)*2 Fuel injector assembly B Engine coolant temperature is 90°C (194°F) or higher*3 Pressure regulator A HINT: *1: If the engine coolant temperature is 40°C [104°F] or less (after stopping the engine and the vehicle is not driven for a long period of time), the pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. *2: If the engine coolant temperature is 40 to 90°C [104 to 194°F] (15 to 120 minutes have passed after stopping the engine), there may be fuel leaking from a fuel injector. *3: If the engine coolant temperature is 90°C [194°F] or higher (2 to 5 minutes have passed after stopping the engine), there may be a problem with the pressure regulator failing to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. B --> See step 20 A: Go to next step
19. CHECK FUEL PRESSURE HINT: For the fuel pressure inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . Attach a fuel pressure gauge and check the fuel pressure after stopping the engine. Standard 147 kPa (1.5 kgf/cm 2 , 21 psi) or higher (5 minutes after stopping the engine) HINT: If the engine cannot be started, read the values after cranking the engine. RESULT Result Proceed to Abnormal A Normal B B --> See step 24 A --> See step 141
20. INSPECT FUEL INJECTOR ASSEMBLY Clean the inside of the surge tank with compressed air. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes. RESULT Result Proceed to 4000 ppm or higher A Less than 4000 ppm B HINT: If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem. B --> See step 22 A: Go to next step
21. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assemblies. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S28127440222014030500000) . NG --> See step 123 OK: Go to next step
22. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Check if carbon is in the air flow passage. RESULT Result Proceed to No carbon present A Carbon in passage B B --> See step 124 A: Go to next step
23. CHECK INTAKE SYSTEM Check the intake system for vacuum leak. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602708-S08291812542014030500000) . OK No leak in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
24. PERFORM SIMULATION TEST Check if the engine can be started. RESULT Result Proceed to Engine cannot be started A Engine can be started B B --> END A: Go to next step
25. CONFIRM PROBLEM SYMPTOM Confirm the problem symptoms. HINT: The problem symptoms below can be determined by reading the freeze frame data. RESULT Problem Symptom Suspected Area Proceed to The engine does not crank Battery fully depleted Starter assembly (includes pinion gear wear or teeth damage) Starter system Engine assembly (excess friction) Drive plate and ring gear sub-assembly wear or teeth damage A Abnormal cranking speed Battery fully depleted Starter assembly Engine assembly (excess friction, compression loss) B There is no initial combustion (combustion does not occur even once)*1 Pressure regulator fuel pressure maintenance Fuel injector assembly leak Fuel leak from fuel line Fuel pump control system Fuel pump Spark plug Crankshaft position sensor system Ignition coil assembly system C The engine stalls after starter turnoff (engine stalls immediately after the first time the engine speed increases)*2 Intake system connections Throttle with motor body assembly Camshaft timing oil control valve assembly Mass air flow meter sub-assembly system D The initial combustion and starter turnoff occur late*3 Engine coolant temperature sensor Mass air flow meter sub-assembly Air fuel ratio sensor Heated oxygen sensor Fuel injector assembly Spark plug Pressure regulator Fuel pump Fuel pump control system E HINT: If there is hesitation (cranking speed is slow and combustion occurs before passing TDC) during the initial cranking period, the battery charge may be insufficient or the starter may be malfunctioning. *1: If there is no initial combustion, a wire harness may be malfunctioning, or the ignition or fuel system may be malfunctioning. *2: If the engine stalls after starter turn off, the air fuel ratio may be incorrect or the camshaft timing oil control valve may have a problem returning. *3: If the initial combustion and starter turnoff occur late, the fuel injection volume may be incorrect (too low or too high). B --> See step 32 C --> See step 35 D --> See step 49 E --> See step 55 A: Go to next step
26. PERFORM SIMULATION TEST When cranking the engine, check for a noise indicating that the starter pinion gear is extending, and check that the starter pinion gear is not spinning freely. RESULT Problem Symptom Suspected Area Proceed to A noise indicating that the starter pinion gear is extending is heard and the starter pinion gear is not spinning freely.*1 Battery Excess engine friction Starter assembly A A noise indicating that the starter pinion gear is extending is heard but the starter pinion gear is spinning freely. Drive plate and ring gear sub-assembly Starter assembly B A noise indicating that the starter pinion gear is extending is not heard Battery Starter assembly Starter system C HINT: *1: The battery may be fully depleted or there may be excess engine friction. B --> See step 29 C --> See step 30 A: Go to next step
27. INSPECT BATTERY Inspect the battery. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602693-S00436088452014030500000) . NG --> CHARGE OR REPLACE BATTERY OK: Go to next step
28. CHECK ENGINE ASSEMBLY Check that the crankshaft rotates smoothly when rotating it by hand. OK Crankshaft rotates smoothly. HINT: Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts. NG --> REPAIR OR REPLACE ENGINE ASSEMBLY OK --> See step 125
29. INSPECT STARTER ASSEMBLY (STARTER PINION GEAR) Remove the starter assembly. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602705-S12726693202014030500000) . Check for starter pinion gear wear and damage. OK There is no wear or damage. NG --> See step 127 OK --> See step 126
30. INSPECT BATTERY Inspect the battery. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602693-S00436088452014030500000) . NG --> CHARGE OR REPLACE BATTERY OK: Go to next step
31. INSPECT STARTER ASSEMBLY Inspect the starter assembly. Refer to «INSPECTION [03/2012 - ]»(ref-602705-S20972658742014030500000) . NG --> See step 127 OK --> See step 120
32. PERFORM SIMULATION TEST Check the cranking speed. RESULT Problem Symptom Suspected Area Proceed to Cranking speed is slow (100 RPM or less) Battery Starter assembly Excess engine friction A Cranking speed is fast (300 RPM or higher)*1 Engine compression loss B HINT: *1: If the cranking speed is fast, there may be compression loss. B --> CHECK AND REPAIR ENGINE ASSEMBLY A: Go to next step
33. INSPECT BATTERY Inspect the battery. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602693-S00436088452014030500000) . NG --> CHARGE OR REPLACE BATTERY OK: Go to next step
34. CHECK ENGINE ASSEMBLY Check that the crankshaft rotates smoothly when rotating it by hand. OK Crankshaft rotates smoothly. HINT: Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts. NG --> CHECK AND REPAIR ENGINE ASSEMBLY OK --> See step 125
35. INSPECT FUEL INJECTOR ASSEMBLY Using a sound scope or screwdriver, check for an injector operating sound while cranking the engine. OK Fuel injector assembly operating sound is heard. NG --> See step 47 OK: Go to next step
36. CHECK FUEL PRESSURE Inspect the fuel pressure. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . NG --> See step 45 OK: Go to next step
37. CHECK SPARK PLUG AND SPARK Check for sparks. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602692-S37975818882014030500000) . NG --> See step 41 OK: Go to next step
38. CONFIRM VEHICLE CONDITION Confirm the conditions present when the malfunction occurred based on the customer problem analysis. RESULT Problem Symptom Suspected Area Proceed to When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator is stuck open A When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2 Fuel injector assembly leak B When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3 Failure to maintain fuel pressure by pressure regulator A Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C*4 HINT: *1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. *2: Fuel may be leaking from a fuel injector assembly. *3: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. *4: From step 69, perform fuel system troubleshooting C (steps 70 to 74). B --> See step 40 C --> See step 69 A: Go to next step
39. CHECK FUEL PRESSURE HINT: For the fuel pressure inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . Attach a fuel pressure gauge and check the fuel pressure after stopping the engine. Standard 147 kPa (1.5 kgf/cm 2 , 21 psi) or higher (5 minutes after stopping the engine) RESULT Result Proceed to Abnormal A Normal B*1 HINT: If the engine cannot be started, read the values after cranking the engine. *1: from step 69, perform fuel system troubleshooting C (steps 70 to 74). B --> See step 69 A --> See step 141
40. INSPECT FUEL INJECTOR ASSEMBLY Clean the inside of the surge tank with compressed air. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes. RESULT Result Proceed to 4000 ppm or higher A Less than 4000 ppm B*1 HINT: If the concentration is 4000 ppm or higher, a fuel injector may have a sealing problem. *1: From step 69, perform fuel system troubleshooting C (steps 70 to 74). B --> See step 69 A --> See step 123
41. INSPECT SPARK PLUG Inspect the spark plugs. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 3»(ref-602692-S37975818882014030500000) . HINT: Even if the spark plug of only one cylinder is malfunctioning, replace the spark plugs of all cylinders. NG --> See step 128 OK: Go to next step
42. READ VALUE USING TECHSTREAM (ENGINE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Primary / Engine Speed. Start the engine. While running the engine, read the [Engine Speed] value. OK A value that matches the actual engine speed is constantly output. HINT: Check the engine speed using a line graph. If the engine cannot be started, check the engine speed while cranking the engine. If the engine speed is 0 RPM, the crankshaft position sensor may have an open or short circuit. NG --> See step 129 OK: Go to next step
43. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) Check the harnesses and connectors, referring to DTC P0351 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S01031854682014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 130 OK: Go to next step
44. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0351 inspection procedure. Refer to «PROCEDURE - Step 4»(ref-602702-S01031854682014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. If the wire harness is normal, after replacing the ignition coil, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 69 and perform troubleshooting for the ignition system (steps 75 to 83). NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 131
45. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for an operating sound from the fuel pump. OK Control the Fuel Pump / Speed Specified Condition ON Operating sound heard OFF Operating sound not heard HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. NG --> See step 122 OK: Go to next step
46. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for fuel leakage from the fuel pipes. RESULT Result Proceed to Fuel leakage or signs of fuel leakage are present A No fuel leakage or signs of fuel leakage B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected. If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 69 and perform fuel system troubleshooting C (steps 70 to 74). B --> See step 122 A --> REPAIR OR REPLACE FUEL LINE
47. READ VALUE USING TECHSTREAM (ENGINE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Primary / Engine Speed. Start the engine. While running the engine, read the [Engine Speed] value. OK A value that matches the actual engine speed is constantly output. HINT: Check the engine speed using a line graph. If the engine cannot be started, check the engine speed while cranking the engine. If the engine speed is 0 RPM, the crankshaft position sensor may have an open or short circuit. NG --> See step 121 OK: Go to next step
48. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S02932314502014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 143 OK --> See step 142
49. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602706-S13118102442014030500000) . NG --> See step 54 OK: Go to next step
50. CHECK INTAKE SYSTEM Check for air leaks in the intake system (vacuum hose disconnection, cracks, damaged gaskets, etc.). Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 1»(ref-602708-S08291812542014030500000) . HINT: If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake air surge tank assembly increases and the air suction noise becomes louder. If Short FT #1, Short FT #2, Long FT #1 and Long FT #2 are largely different from the normal values (differ by higher than 15%) when idling (intake air volume is small) and almost the same as the normal values when racing the engine (for example, when maintaining a speed of 3000 RPM) (intake air volume is high), air leakage may be present. OK There is no air leaks. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
51. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Disconnect the throttle with motor body assembly connector. HINT: When the connector is disconnected, the vehicle enters fail-safe mode and the throttle valve opening angle is 4 to 7°. Crank the engine and check that it starts. RESULT Result Proceed to Engine starts A Engine does not start B HINT: When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs. Refer to «DTC CHECK / CLEAR [03/2012 - 07/2012]»(ref-602560-S42705218842014030500000) . B --> See step 53 A: Go to next step
52. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Check if carbon is in the air flow passage. OK No carbon present. NG --> REMOVE FOREIGN OBJECT AND CLEAN THROTTLE WITH MOTOR BODY ASSEMBLY OK: Go to next step
53. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY) Operate the VVT system through the Active test, and check if the VVT system is operating normally. Perform the Active Test, referring to DTC P0011 inspection procedure (VVT system for intake camshaft). Refer to «PROCEDURE - Step 2»(ref-602701-S00003109112014030500000) . Perform the Active Test, referring to DTC P0014 inspection procedure (VVT system for exhaust camshaft). Refer to «PROCEDURE - Step 2»(ref-602701-S21490636572014030500000) . RESULT Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems. *1: From step 69, perform intake system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94). B --> See step 69 A --> See step 132
54. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0102 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S07387497742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. If the wire harness is normal, after replacing the mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 69 and perform intake system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94). NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 134
55. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . HINT: If the engine coolant temperature sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> See step 133 OK: Go to next step
56. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0115 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S03544086612014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
57. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter. Refer to «ON-VEHICLE INSPECTION [03/2012 - ]»(ref-602706-S13118102442014030500000) . HINT: If the mass air flow meter is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> See step 134 OK: Go to next step
58. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Check the harnesses and connectors, referring to DTC P0102 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602701-S07387497742014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
59. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Long FT #1, Long FT #2 and Atmosphere Pressure. RESULT Data List Item Result Suspected Area Proceed to Long FT #1, Long FT #2 +25% or higher, or less than -25% Air fuel ratio sensor Heated oxygen sensor Mass air flow meter sub-assembly Fuel injector assembly ECM A Atmosphere Pressure 80 kPa(abs) [600 mmHg(abs)] or less [when altitude is 0 m (0 ft)] Both Data List items listed above Values are other than above - B B --> See step 63 A: Go to next step
60. PERFORM SIMULATION TEST Remove the EFI NO. 1 and ETCS fuses from the engine room relay block. After 60 seconds or more elapse, install the fuses. Check if the engine can be started. RESULT Result Proceed to Engine can be started A Engine cannot be started B B --> See step 63 A: Go to next step
61. INSPECT AIR FUEL RATIO SENSOR Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Fuel System Status #1 and Fuel System Status #2. Confirm that Fuel System Status #1 and Fuel System Status #2 are CL. Enter the following menus: Powertrain / Engine / Data List / AF Lambda B1S1 and AF Lambda B2S1. Confirm that AF Lambda B1S1 and AF Lambda B2S1 are within the range of 0.95 to 1.05 when idling. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume / AFS Voltage B1 S1 or AFS Voltage B2S1. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume. Standard Techstream Display Injection Volume Specified Condition AFS Voltage B1S1 AFS Voltage B2S1 +12% Air fuel ratio sensor output voltage is below 3.1 V -12% Air fuel ratio sensor output voltage is higher than 3.4 V HINT: 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 the air fuel ratio sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> See step 135 OK: Go to next step
62. PERFORM SIMULATION TEST Check if the idle speed is stable after starting the engine. OK Engine speed is stable. HINT: After replacing the fuel injector assembly or mass air flow meter sub-assembly, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. NG --> See step 123 OK --> See step 134
63. CHECK FUEL PRESSURE Inspect the fuel pressure. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . NG --> See step 68 OK: Go to next step
64. INSPECT SPARK PLUG Inspect the spark plugs. Refer to «ON-VEHICLE INSPECTION [03/2012 - ] - Step 3»(ref-602692-S37975818882014030500000) . RESULT Result Proceed to All cylinders are normal A One cylinder is abnormal*1 B All cylinders are abnormal*2, *3 C HINT: *1: If one cylinder is abnormal, replace the spark plug of that cylinder and inspect the ignition and fuel system for that cylinder. After performing repairs, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. *2: If all cylinders are abnormal, replace the spark plugs of all cylinders and check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. *3: Engine starting trouble may occur if the vehicle is driven extremely short distances repeatedly. B --> See step 136 C --> See step 137 A: Go to next step
65. CONFIRM VEHICLE CONDITION Confirm the conditions present when the malfunction occurred based on the customer problem analysis. RESULT Problem Symptom Suspected Area Proceed to When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator is stuck open A When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2 Fuel injector assembly leak B When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3 Failure to maintain fuel pressure by pressure regulator A Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C*4 HINT: *1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. *2: Fuel may be leaking from a fuel injector assembly. *3: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine. *4: From step 69, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. B --> See step 67 C --> See step 69 A: Go to next step
66. CHECK FUEL PRESSURE HINT: For the fuel pressure inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . Attach a fuel pressure gauge and check the fuel pressure after stopping the engine. Standard 147 kPa (1.5 kgf/cm 2 , 21 psi) or higher (5 minutes after stopping the engine) RESULT Result Proceed to Abnormal A Normal B*1 HINT: If the engine cannot be started, read the values after cranking the engine. *1: From step 69, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. B --> See step 69 A --> See step 141
67. INSPECT FUEL INJECTOR ASSEMBLY Clean the inside of the surge tank with compressed air. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes. RESULT Result Proceed to 4000 ppm or higher A Less than 4000 ppm B*1 HINT: If the concentration is 4000 ppm or higher, a fuel injector may have a sealing problem. *1: From step 69, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. B --> See step 69 A --> See step 123
68. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for fuel leakage from the fuel pipes. RESULT Result Proceed to Fuel leakage or signs of fuel leakage are present A No fuel leakage or signs of fuel leakage B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected. If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 69 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. B --> See step 122 A --> REPAIR OR REPLACE FUEL LINE
69. CHECK MALFUNCTION CONDITION If the malfunction could not be identified during the inspection in steps 38, 39, 40 and 46, perform fuel system troubleshooting C (steps 70 to 74). RESULT Performed Step Troubleshooting by System Procedure Proceed to Steps 38, 39, 40 and 46 Fuel system troubleshooting C 70 to 74 A If the malfunction could not be identified during the inspection in step 44, perform ignition system troubleshooting (steps 75 to 83). RESULT Performed Step Troubleshooting by System Procedure Proceed to Step 44 Ignition system troubleshooting 75 to 83 B If the malfunction could not be identified during the inspection in steps 53 and 54, perform intake air system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94). RESULT Performed Step Troubleshooting by System Procedure Proceed to Step 53 and 54 Intake air system troubleshooting 84 to 86 C Fuel system troubleshooting A 87 to 94 If the malfunction could not be identified during the inspection in steps 55, 56, 57, 58, 61, 62, 64, 65, 66, 67 and 68, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 105), intake air system troubleshooting (steps 106 to 108), and ignition system troubleshooting (steps 109 to 117), in that order. RESULT Performed Step Troubleshooting by System Procedure Proceed to Steps 55, 56, 57, 58, 61, 62, 64, 65, 66, 67 and 68 Fuel system troubleshooting A 95 to 102 D Fuel system troubleshooting B 103 to 105 Intake air system troubleshooting 106 to 108 Ignition system troubleshooting 109 to 117 B --> See step 75 C --> See step 84 D --> See step 95 A: Go to next step
70. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assemblies. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S28127440222014030500000) . NG --> See step 123 OK: Go to next step
71. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-602700-S02932314502014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 143 OK: Go to next step
72. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 73 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
73. REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT) Replace the VVT sensor (for intake camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 74 OK --> END (VVT SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)
74. REPLACE VVT SENSOR (FOR EXHAUST CAMSHAFT) Replace the VVT sensor (for exhaust camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (VVT SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)
75. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the tightening and installation condition of the crankshaft position sensor bolt. Check the connection of the crankshaft position sensor connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
76. CHECK SENSOR INSTALLATION (VVT SENSOR (FOR INTAKE CAMSHAFT)) Check the tightening and installation condition of the VVT sensor (for intake camshaft) bolt. Check the connection of the VVT sensor (for intake camshaft) connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR (FOR INTAKE CAMSHAFT) OK: Go to next step
77. CHECK SENSOR INSTALLATION (VVT SENSOR (FOR EXHAUST CAMSHAFT)) Check the tightening and installation condition of the VVT sensor (for exhaust camshaft) bolt. Check the connection of the VVT sensor (for exhaust camshaft) connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR (FOR EXHAUST CAMSHAFT) OK: Go to next step
78. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0335 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S10552566402014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
79. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM) Check the harnesses and connectors, referring to DTC P0340 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602702-S23769849772014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
80. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR EXHAUST CAMSHAFT) - ECM) Check the harnesses and connectors, referring to DTC P0365 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602702-S25878437042014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
81. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 82 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
82. REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT) Replace the VVT sensor (for intake camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 83 OK --> END (VVT SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)
83. REPLACE VVT SENSOR (FOR EXHAUST CAMSHAFT) Replace the VVT sensor (for exhaust camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (VVT SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)
84. READ VALUE USING TECHSTREAM (ISC LEARNING VALUE) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / ISC Learning Value. Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches off. RESULT Data List Item Result Suspected Area Proceed to ISC Learning Value (engine displacement (liters) x 0.9) or higher Valve timing Compression A Less than (engine displacement (liters) x 0.9) - B B --> See step 86 A: Go to next step
85. CHECK CYLINDER COMPRESSION PRESSURE Check the compression. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 11»(ref-602689-S37180457032014030500000) . NG --> CHECK AND REPAIR ENGINE ASSEMBLY OK --> See step 138
86. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . NG --> See step 133 OK: Go to next step
87. CHECK FUEL PRESSURE HINT: For the fuel pressure inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . Attach a fuel pressure gauge and check the fuel pressure when cranking the engine and after stopping the engine. Standard Vehicle State Specified Condition Cranking engine 380 (3.9 kgf/cm 2 , 55 psi) to 420 kPa (4.3 kgf/cm 2 , 61 psi) 5 minutes after stopping engine 147 kPa (1.5 kgf/cm 2 , 21 psi) or higher NG --> See step 93 OK: Go to next step
88. READ VALUE USING TECHSTREAM (LONG FT #1 AND LONG FT #2) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Long FT #1 and Long FT #2. RESULT Data List Item Result Suspected Area Proceed to Long FT #1, Long FT #2 -15 to +15% Wire harness or connector Fuel A +15% or higher, or less than -15% Fuel injector assembly B B --> See step 123 A: Go to next step
89. PERFORM SIMULATION TEST Check if the idle speed after starting the engine is currently stable and has always been stable in the past. RESULT Problem Symptom Suspected Area Proceed to Current unstable idle speed or history of unstable idle speed Crankshaft position sensor system A All current and past idle speeds are stable Fuel B HINT: Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle. B --> REPLACE FUEL A: Go to next step
90. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the tightening and installation condition of the crankshaft position sensor bolt. Check the connection of the crankshaft position sensor connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
91. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0335 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S10552566402014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
92. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
93. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for fuel leakage from the fuel pipes. RESULT Result Proceed to Fuel leakage or signs of fuel leakage are present A No fuel leakage or signs of fuel leakage B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected. B --> See step 94 A --> REPAIR OR REPLACE FUEL LINE
94. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S37584344142014030500000) . HINT: Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck. Make sure the internal connector is securely connected. Make sure the fuel pump filter is not clogged. NG --> See step 139 OK --> See step 141
95. CHECK FUEL PRESSURE HINT: For the fuel pressure inspection, refer to the following procedures. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 2»(ref-602712-S10501414752014030500000) . Attach a fuel pressure gauge and check the fuel pressure after stopping the engine. Standard 147 kPa (1.5 kgf/cm 2 , 21 psi) or higher (5 minutes after stopping the engine) HINT: If the engine cannot be started, read the values after cranking the engine. NG --> See step 101 OK: Go to next step
96. READ VALUE USING TECHSTREAM (LONG FT #1 AND LONG FT #2) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Gas AF Control / Long FT #1 and Long FT #2. RESULT Data List Item Result Suspected Area Proceed to Long FT #1, Long FT #2 -15 to +15% Wire harness or connector Fuel A +15% or higher, or less than -15% Fuel injector assembly B B --> See step 123 A: Go to next step
97. PERFORM SIMULATION TEST Check if the idle speed after starting the engine is currently stable and has always been stable in the past. RESULT Problem Symptom Suspected Area Proceed to Current unstable idle speed or history of unstable idle speed Crankshaft position sensor system A All current and past idle speeds are stable Fuel B HINT: Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle. B --> REPLACE FUEL A: Go to next step
98. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the tightening and installation condition of the crankshaft position sensor bolt. Check the connection of the crankshaft position sensor connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
99. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0335 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S10552566402014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
100. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
101. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed. When performing the Active Test, check for fuel leakage from the fuel pipes. RESULT Result Proceed to Fuel leakage or signs of fuel leakage are present A No fuel leakage or signs of fuel leakage B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected. B --> See step 102 A --> REPAIR OR REPLACE FUEL LINE
102. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION [03/2012 - ]»(ref-602707-S37584344142014030500000) . HINT: Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck. Make sure the internal connector is securely connected. Make sure the fuel pump filter is not clogged. NG --> See step 139 OK: Go to next step
103. CHECK PURGE VSV Disconnect the hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Hose (to Canister) *2 Purge VSV Connector *3 Purge VSV Start the engine. Idle the engine. Disconnect the connector of the purge VSV. Check if air flows through the purge VSV. OK Air does not flow HINT: When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs. Refer to «DTC CHECK / CLEAR [03/2012 - 07/2012]»(ref-602560-S42705218842014030500000) . NG --> See step 140 OK: Go to next step
104. INSPECT FUEL INJECTOR ASSEMBLY Clean the inside of the surge tank with compressed air. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes. RESULT Result Proceed to 4000 ppm or higher A Less than 4000 ppm B HINT: If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem. B --> See step 105 A --> See step 123
105. CHECK INTAKE VALVE Check if carbon is on the intake valves. RESULT Result Proceed to Carbon present A No carbon present B B --> See step 106 A --> CLEAN INTAKE VALVE
106. READ VALUE USING TECHSTREAM (ISC LEARNING VALUE) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / ISC Learning Value. Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches off. RESULT Data List Item Result Suspected Area Proceed to ISC Learning Value (engine displacement (liters) x 0.9) or more Valve timing Compression A Less than (engine displacement (liters) x 0.9) - B B --> See step 108 A: Go to next step
107. CHECK CYLINDER COMPRESSION PRESSURE Check the compression. Refer to «ON-VEHICLE INSPECTION [03/2012 - 07/2012] - Step 11»(ref-602689-S37180457032014030500000) . NG --> CHECK AND REPAIR ENGINE ASSEMBLY OK --> See step 138
108. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION [03/2012 - ]»(ref-602706-S30544081142014030500000) . NG --> See step 133 OK: Go to next step
109. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the tightening and installation condition of the crankshaft position sensor bolt. Check the connection of the crankshaft position sensor connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
110. CHECK SENSOR INSTALLATION (VVT SENSOR (FOR INTAKE CAMSHAFT)) Check the tightening and installation condition of the VVT sensor (for intake camshaft) bolt. Check the connection of the VVT sensor (for intake camshaft) connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR (FOR INTAKE CAMSHAFT) OK: Go to next step
111. CHECK SENSOR INSTALLATION (VVT SENSOR (FOR EXHAUST CAMSHAFT)) Check the tightening and installation condition of the VVT sensor (for exhaust camshaft) bolt. Check the connection of the VVT sensor (for exhaust camshaft) connector. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR (FOR EXHAUST CAMSHAFT) OK: Go to next step
112. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Check the harnesses and connectors, referring to DTC P0335 inspection procedure. Refer to «PROCEDURE - Step 3»(ref-602702-S10552566402014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
113. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM) Check the harnesses and connectors, referring to DTC P0340 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602702-S23769849772014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
114. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR EXHAUST CAMSHAFT) - ECM) Check the harnesses and connectors, referring to DTC P0365 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-602702-S25878437042014030500000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
115. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 116 OK --> END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
116. REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT) Replace the VVT sensor (for intake camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 117 OK --> END (VVT SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)
117. REPLACE VVT SENSOR (FOR EXHAUST CAMSHAFT) Replace the VVT sensor (for exhaust camshaft). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S25836013282014030500000) . Check the engine start operation. OK Malfunction has been repaired successfully. NG --> See step 142 OK --> END (VVT SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)
118. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [03/2012 - 07/2012]»(ref-602699-S37427334262014030500000)
119. REPAIR ENGINE IMMOBILISER SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - 07/2012]»(ref-602561-S26260345412014030500000)
120. CHECK STARTER SIGNAL CIRCUIT. Refer to «Starter Signal Circuit»(ref-602700-S02429051522014030500000)
121. REPLACE CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S20080390292014030500000)
122. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-602700-S03502077172014030500000)
123. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602707-S07304523862014030500000)
124. CLEAN OR REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S02302826662014030500000)
125. INSPECT STARTER ASSEMBLY. Refer to «INSPECTION [03/2012 - ]»(ref-602705-S20972658742014030500000)
126. REPLACE DRIVE PLATE AND RING GEAR SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602689-S08297442902014030500000)
127. REPLACE STARTER ASSEMBLY. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602705-S12726693202014030500000)
128. REPLACE SPARK PLUG. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S31161335592014030500000)
129. CHECK CRANKSHAFT POSITION SENSOR CIRCUIT. Refer to «DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent»(ref-602702-S01684773552014030500000)
130. CHECK IGNITION COIL POWER SOURCE CIRCUIT. Refer to «DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit; DTC P0355: Ignition Coil "E" Primary / Secondary Circuit; DTC P0356: Ignition Coil "F" Primary / Secondary Circuit»(ref-602702-S37785493742014030500000)
131. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S31161335592014030500000)
132. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (INTAKE OR EXHAUST CAMSHAFT). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S02584008602014030500000)
133. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S11879829212014030500000)
134. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S42226472472014030500000)
135. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL [03/2012 - ]»(ref-602706-S10327068972014030500000)
136. REPLACE SPARK PLUG (ABNORMAL CYLINDER). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S31161335592014030500000)
137. REPLACE SPARK PLUG (ALL CYLINDER). Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S31161335592014030500000)
138. CHECK VALVE TIMING. Refer to «PROCEDURE - Step 4»(ref-602701-S00003109112014030500000)
139. REPLACE FUEL PUMP. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602707-S38975587672014030500000)
140. INSPECT PURGE VSV. Refer to «INSPECTION [03/2012 - ]»(ref-602694-S17624833682014030500000)
141. REPLACE FUEL PRESSURE REGULATOR. Refer to «REMOVAL [03/2012 - ]»(ref-602707-S33404948092014030500000)
142. REPLACE ECM. Refer to «REMOVAL [03/2012 - 07/2012]»(ref-602706-S36928064912014030500000)
143. CHECK FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-602700-S09208001932014030500000)

HINT

1. In contrast to normal malfunction diagnosis for components, circuits and systems, DTC P1604 is used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as starting difficulty. As the DTC can be stored as a result of certain user actions, even if the DTC is output, if the customer makes no mention of problems, clear the DTC without performing any troubleshooting and return the vehicle to the customer.
2. If any other DTCs are output, perform troubleshooting for those DTCs first.
3. When the Data List item "Immobiliser Fuel Cut" is ON, the engine cannot be started.
4. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
5. When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data. Refer to «FREEZE FRAME DATA [07/2012 - ]»(ref-602560-S30775065542014030500000) .
6. When confirming the freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
7. Try to start the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and compare it with the freeze frame data.
8. If the malfunction does not reoccur, carefully check the vehicle conditions from when the malfunction occurred using freeze frame data.
9. When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.
10. If the same inspection or replacement procedure appears 2 times when performing an inspection procedure, it is not necessary to repeat the procedure the second time.

1. Malfunction Recurrence and Inspection Areas Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown. The engine speed recorded in the freeze frame data is 0 RPM (the engine does not crank). HINT: One of the following problems may be present: battery depletion, excess engine friction, a starter malfunction or a crankshaft position sensor malfunction. If the battery voltage is less than 6 V during cranking, there is a high probability that engine friction is abnormal. If the battery voltage drops to 5 V or less when starting the engine, the battery may be malfunctioning. If the battery voltage fluctuates while cranking the engine, it can be concluded that cranking is being performed. When the engine speed is 0 RPM, the crankshaft position sensor and/or an ECM may be malfunctioning. All engine speeds recorded in the freeze frame data are between 60 and 250 RPM (the engine cranks but there is no combustion). HINT: If the engine speed is between 60 and 250 RPM (no initial combustion), there may be a wiring problem or a complete failure of an ignition or fuel system part. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and the engine may not be able to be started. The engine speed recorded in the freeze frame data is 250 RPM or higher (the initial combustion and starter turn off timing is too late). HINT: If the engine speed is 250 RPM or higher (combustion occurs but the initial combustion and starter turnoff timing is too late), the fuel injection volume is often incorrect (too low or too high) and determining the cause of the malfunction is often difficult. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and engine starting trouble may occur. If Long FT is incorrect, there may be a fuel supply problem due to the injectors or fuel pump being clogged, etc. If the engine cranking speed is too high, compression loss may have occurred due to carbon interfering with the valve operation. When the malfunction (starting difficulty) can be reproduced, or malfunction conditions are known, perform the following inspections ("Problem symptoms" and "Systems to inspect") Problem symptoms The engine does not crank. HINT: The starter is normal if a noise that indicates the starter pinion gear is extending is heard. The battery may be fully depleted or there may be excess engine friction. The engine cranking speed is abnormal. HINT: If the engine cranking speed is too high (for example, 300 RPM or higher with no combustion), compression loss may have occurred because carbon interfered with valve operation, etc. There is no initial combustion. HINT: If there is no initial combustion, there is probably a wiring problem or an ignition or fuel system part malfunction. The engine stalls after starter turn off. HINT: If the engine stalls after starter turn off, the air fuel ratio may be incorrect or the VVT may have a problem returning. The initial combustion and starter turn off occur late. HINT: If the initial combustion and starter turn off occur late, the fuel injection volume is probably incorrect (too low or too high). HINT: Causes of fuel system malfunctions according to conditions present at the time of the malfunction. When 2 to 3 minutes have elapsed after stopping the engine: Fuel pressure loss due to the pressure regulator failing to maintain the fuel pressure. When 15 to 120 minutes have elapsed after stopping the engine: Problem with injector fuel seal. When a long time has elapsed after stopping the engine: Pressure regulator is stuck open. Systems to inspect. Intake system Ignition system Fuel system
2. INSPECTION FLOW Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown. Freeze Frame Data Item Result Suspected Area Procedure Engine Speed 0 RPM (no engine cranking at all) Battery fully depleted Engine assembly (excess friction) Starter assembly Immobiliser system Crankshaft position sensor ECM 4 to 9 60 to 250 RPM (engine cranks but no initial combustion*1) Fuel pump control system Ignition system Engine coolant temperature sensor Fuel injection system 10 to 14 250 RPM or higher (combustion occurs but initial combustion and starter turnoff*2 occur late) Engine assembly (compression loss) Fuel injection system Fuel pump control system 15 to 23 HINT: *1: First combustion after cranking begins. *2: Condition when engine speed increases and starter can be turned off. When the malfunction (starting difficulty) can be reproduced, or when malfunction conditions are known. Problem symptoms Problem Symptom Suspected Area Suspected Component Procedure The engine does not crank Battery malfunction Battery fully depleted 26 to 31 Starting system Starter assembly (includes pinion gear wear or tooth damage) Starting system Engine assembly Engine assembly (excess friction) Drive plate and ring gear sub-assembly wear or tooth damage Cranking speed too low Battery malfunction Battery fully depleted 32 to 34 Starting system Starter assembly Engine assembly Engine assembly (excess friction) Cranking speed too high Engine assembly Engine assembly (compression loss) There is no initial combustion Fuel supply problem Cannot maintain pressure due to pressure regulator malfunction Fuel injector assembly leak Fuel leak from fuel line Fuel pump control system Fuel pump 35 to 48 Ignition system malfunction Spark plug Crankshaft position sensor Ignition coil assembly Engine stalls after starter turnoff Air suction Intake system connections 49 to 54 Deposits in throttle with motor body assembly Throttle with motor body assembly VVT valve does not return properly Camshaft timing oil control valve assembly Mass air flow meter sub-assembly malfunction Mass air flow meter sub-assembly The initial combustion and starter turnoff occur late Engine coolant temperature sensor malfunction Engine coolant temperature sensor 55 to 68 Mass air flow meter sub-assembly malfunction Mass air flow meter sub-assembly Abnormal air fuel ratio learning value Air fuel ratio sensor Deviation from fuel injection characteristics Fuel injector assembly Wet-fouled or dry-fouled spark plug Spark plug Lack of fuel pressure Pressure regulator Fuel pump Fuel pump control system Systems to inspect. Troubleshooting by System Suspected Area Suspected Component Procedure Fuel system troubleshooting A Abnormal A/F learning value Fuel injector assembly 87 to 94 95 to 102 Rough idling Crankshaft position sensor Abnormal fuel pressure Fuel Fuel leak from fuel line Fuel pump Pressure regulator Fuel system troubleshooting B Abnormal concentration of HC in surge tank Purge VSV system Fuel injector assembly 103 to 105 Fuel system troubleshooting C Injection signal system malfunction Fuel injector assembly Crankshaft position sensor VVT sensor ECM 70 to 74 Intake system troubleshooting Difference between ISC target value and opening angle when idling Engine assembly (compression loss) Valve timing Engine coolant temperature sensor ECM 84 to 86 106 to 108 Ignition system troubleshooting Crankshaft position sensor and/or VVT sensor signal malfunction Crankshaft position sensor system (including sensor installation) VVT sensor system (including sensor installation) ECM 75 to 83 109 to 117 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. 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.
2. The throttle actuator current (Throttle Motor Current) and the throttle actuator duty ratio (Throttle Motor Duty (Open) / Throttle Motor Duty (Close)) can be read using the Techstream. However, the ECM shuts off the throttle actuator current when the electronic throttle control system malfunctions.

HINT

1. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
2. Since a pending DTC is not stored for this DTC, it takes time to confirm whether the malfunction has been successfully repaired by checking for this DTC. When confirming whether the malfunction has been successfully repaired, compare "ISC Learning Value" recorded in the freeze frame data with "ISC Learning Value" in the Data List after repairs have been made to save time.

HINT

1. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
2. Since a pending DTC is not stored for this DTC, it takes time to confirm whether the malfunction has been successfully repaired by checking for this DTC. When confirming whether the malfunction has been successfully repaired, compare "ISC Learning Value" recorded in the freeze frame data with "ISC Learning Value" in the Data List after repairs have been made to save time.

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" [Throttle Position Command, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open), Throttle Motor Duty (Close)]. Refer to «DATA LIST / ACTIVE TEST [03/2012 - 07/2012]»(ref-602699-S14419194982014030500000) .

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" [Throttle Position Command, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open), Throttle Motor Duty (Close)]. Refer to «DATA LIST / ACTIVE TEST [07/2012 - ]»(ref-602699-S27023949902014030500000) .

Note. Inspect the fuses for circuit 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.

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" [Throttle Position Commanded, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open) and Throttle Motor Duty (Close)]. Refer to «DATA LIST / ACTIVE TEST [03/2012 - 07/2012]»(ref-602699-S14419194982014030500000) .

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" [Throttle Position Commanded, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open) and Throttle Motor Duty (Close)]. Refer to «DATA LIST / ACTIVE TEST [07/2012 - ]»(ref-602699-S27023949902014030500000) .

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.

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. Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor.
2. Sensor 1 refers to the sensor mounted in front of the Three-way Catalytic Converter (TWC) and located near 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.
4. A low air fuel ratio sensor voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.
5. A high air fuel ratio sensor voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.
6. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
7. Bank 2 refers to the bank that does not include the No. 1 cylinder.
8. Sensor 1 refers to the sensor closest to the engine assembly.
9. Sensor 2 refers to the sensor farthest away from the engine assembly.

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

HINT

1. Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor.
2. Sensor 1 refers to the sensor mounted in front of the Three-way Catalytic Converter (TWC) and located near 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.
4. A low air fuel ratio sensor voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.
5. A high air fuel ratio sensor voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.
6. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
7. Bank 2 refers to the bank that does not include the No. 1 cylinder.
8. Sensor 1 refers to the sensor closest to the engine assembly.
9. Sensor 2 refers to the sensor farthest away from the engine assembly.