Engine Control System (Diagnostic Codes (P2118 - U0101) & Circuit Tests)): Diagnosis Toyota Avalon XX30 рестайлинг 2

INSPECTION PROCEDURE

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. 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»(ref-428881-S03933959242011101200000) .
2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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. 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»(ref-428881-S24241097782011101200000) .
2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

1. These DTCs relate to the Accelerator Pedal Position (APP) sensor.

Scheme 51

Scheme 52

1. READ VALUE USING TECHSTREAM (ACCEL SENSOR OUT NO. 1 AND ACCEL SENSOR OUT NO. 2) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Accel Sensor Out No. 1 and Accel Sensor Out No. 2. Read the value displayed on the Techstream. Standard voltage Accelerator Pedal Operations Accel Sensor Out No. 1 Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V OK --> See step 8 NG: Go to next step
2. CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL POSITION SENSOR - ECM) Disconnect the Accelerator Pedal Position (APP) sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition A19-6 (VPA) - A55-55 (VPA) Always Below 1 ohms A19-5 (EPA) - A55-59 (EPA) Always Below 1 ohms A19-4 (VCPA) - A55-57 (VCPA) Always Below 1 ohms A19-3 (VPA2) - A55-56 (VPA2) Always Below 1 ohms A19-2 (EPA2) - A55-60 (EPA2) Always Below 1 ohms A19-1 (VCP2) - A55-58 (VCP2) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A19-6 (VPA) or A55-55 (VPA) - Body ground Always 10 kohms or higher A19-5 (EPA) or A55-59 (EPA) - Body ground Always 10 kohms or higher A19-4 (VCPA) or A55-57 (VCPA) - Body ground Always 10 kohms or higher A19-3 (VPA2) or A55-56 (VPA2) - Body ground Always 10 kohms or higher A19-2 (EPA2) or A55-60 (EPA2) - Body ground Always 10 kohms or higher A19-1 (VCP2) or A55-58 (VCP2) - Body ground Always 10 kohms or higher Reconnect the APP sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT ACCELERATOR POSITION SENSOR (VCPA AND VCP2 VOLTAGE) Disconnect the APP sensor connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Switch Condition Specified Condition A19-4 (VCPA) - A19-5 (EPA) Ignition switch ON 4.5 to 5.0 V A19-1 (VCP2) - A19-2 (EPA2) Ignition switch ON 4.5 to 5.0 V Reconnect the APP sensor connector. NG --> See step 6 OK: Go to next step
4. REPLACE ACCELERATOR PEDAL ASSEMBLY (ACCELERATOR PEDAL POSITION SENSOR) Replace the accelerator pedal assembly. Refer to «REMOVAL»(ref-428889-S10416808592011101200000) . NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2120, P2122, P2123, P2125, P2127, P2128, and/or P2138 is output A DTC is not output B B --> END A --> See step 7
6. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

1. These DTCs relate to the Accelerator Pedal Position (APP) sensor.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .
2. This DTC relates to the Accelerator Pedal Position (APP) sensor.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .
2. This DTC relates to the Accelerator Pedal Position (APP) sensor.

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the Air-fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using Techstream.

1. Connect Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Warm up the engine at an engine speed of 2500 RPM for approximately 90 seconds.
4. On the Techstream, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
5. Perform the Control the Injection Volume for A/F Sensor operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
6. Monitor the output voltages of the A/F and HO2 sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25 %.

1. Each sensor reacts in accordance with increases in the fuel injection volume.

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the HO2S (sensor 2) output has a maximum output delay of 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

Scheme 53

Scheme 54

Scheme 55

1. Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the A/F and HO2 sensors.
2. To display the graph, enter the following menus on the Techstream: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / All Data / AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2; then press the graph button on the Data List view.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .
2. A low A/F sensor voltage could be caused by a rich air-fuel mixture. Check for conditions that would cause the engine to run rich.
3. A high A/F sensor voltage could be caused by a lean air-fuel mixture. Check for conditions that would cause the engine to run lean.

Scheme 56

Scheme 57

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, 2197 OR P2198) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2195, P2196, P2197 or P2198 is output A DTC P2195, P2196, P2197 or P2198 and P0136, P0137, P0138, P0156, P0157 or P0158 are output A DTC P2195, P2196, P2197 or P2198 and other DTCs are output B HINT: If any DTCs other than P2195, P2196, P2197 or P2198 are output, troubleshoot those DTCs first. B --> See step 10 A: Go to next step
2. READ VALUE USING TECHSTREAM (TEST VALUE OF A/F SENSOR) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Allow the vehicle to drive in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor. Check that the Status2 of O2 Sensor is Complete. If the status is still Incomplete, perform the driving pattern increasing the vehicle speed and using second gear to decelerate the vehicle. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor / Details / RANGE B1S1 and RANGE B2S1. Check the test value of the A/F sensor output current during fuel-cut. Result Result Proceed to Within normal range (1.4 mA or more, and less than 3.6 mA) A Outside normal range (Less than 1.4 mA, or 3.6 mA or more) B B --> See step 18 A: Go to next step
3. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF A/F SENSOR) Connect Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the Air-Fuel Ratio (A/F) sensor at an engine speed of 2500 RPM for 90 seconds. On the Techstream, enter the following menus: Powertrain / Engine / Data List / All Data / AFS Voltage B1S1 or AFS Voltage B2S1 and Engine Speed. Check the A/F sensor voltage three times, when the engine is in each of the following conditions: While idling (check for at least 30 seconds) [A]. At an engine speed of approximately 2500 RPM (without any sudden changes in engine speed) [B]. Raise the engine speed to 4000 RPM and then quickly release the accelerator pedal so that the throttle valve is fully closed [C]. Standard Voltage Condition A/F Sensor Voltage Variation Reference [A] and [B] Changes at approximately 3.3 V Between 3.1 V and 3.5 V [C] Increases to 3.8 V or more This occurs during engine deceleration (when fuel-cut performed) HINT: For more information, see the diagrams below. If the output voltage of the A/F sensor remains at approximately 3.3 V (see 1 Malfunction Condition diagram) under any conditions, including those above, the A/F sensor may have an open circuit. (This will also happen if the A/F sensor heater has an open circuit.) If the output voltage of the A/F sensor remains at either approximately 3.8 V or more, or 2.8 V or less (see 1 Malfunction Condition diagram) under any conditions, including those above, the A/F sensor may have a short circuit. The ECM stops fuel injection (fuel cut) during engine deceleration. This causes a lean condition and results in a momentary increase in the A/F sensor output voltage. When the vehicle is driven: The output voltage of the A/F sensor may be below 2.8 V during fuel enrichment. For the vehicle, this translates to a sudden increase in speed with the accelerator pedal fully depressed when trying to overtake another vehicle. The A/F sensor is functioning normally. The A/F sensor is a current output element; therefore, the current is converted into a voltage inside the ECM. Measuring the voltage at the connectors of the A/F sensor or ECM will show a constant voltage result. NG --> See step 13 OK: Go to next step
4. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC P2195, P2196, P2197, or P2198 is output A DTC is not output B B --> See step 9 A: Go to next step
6. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
7. PERFORM CONFIRMATION DRIVING PATTERN NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P2195, P2196, P2197, or P2198 is output B B --> See step 11 A --> END
9. CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 12 YES --> DTC CAUSED BY RUNNING OUT OF FUEL
10. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S09869597972011101200000)
11. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
12. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
13. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the A/F sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Bank 1 Sensor 1) Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher Standard Resistance (Bank 2 Sensor 1) Tester Connection Condition Specified Condition 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher Reconnect the A/F sensor connector. NG --> See step 21 OK: Go to next step
14. CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the A/F sensor connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B32-1 (HA1A) - B50-86 (HA1A) Always Below 1 ohms B32-3 (A1A+) - B50-93 (A1A+) Always Below 1 ohms B32-4 (A1A-) - B50-116 (A1A-) Always Below 1 ohms B26-1 (HA2A) - B50-109 (HA2A) Always Below 1 ohms B26-3 (A2A+) - B50-120 (A2A+) Always Below 1 ohms B26-4 (A2A-) - B50-119 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B32-1 (HA1A) or B50-86 (HA1A) - Body ground Always 10 kohms or higher B32-3 (A1A+) or B50-93 (A1A+) - Body ground Always 10 kohms or higher B32-4 (A1A-) or B50-116 (A1A-) - Body ground Always 10 kohms or higher B26-1 (HA2A) or B50-109 (HA2A) - Body ground Always 10 kohms or higher B26-3 (A2A+) or B50-120 (A2A+) - Body ground Always 10 kohms or higher B26-4 (A2A-) or B50-119 (A2A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the A/F sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
15. CHECK AIR INDUCTION SYSTEM Check the air induction system for vacuum leakage. OK No leakage from the air induction system. NG --> REPAIR OR REPLACE AIR INDUCTION SYSTEM OK: Go to next step
16. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-428895-S40208392902011101200000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
17. INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-428891-S28969039552011101200000) . NG --> See step 22 OK: Go to next step
18. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
19. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
20. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P2195, P2196, P2197 or P2198 is output B B --> See step 23 A --> END
21. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-428893-S38119987512011101200000)
22. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-428891-S19722823312011101200000)
23. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the Air-fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using Techstream.

1. Connect Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Warm up the engine at an engine speed of 2500 RPM for approximately 90 seconds.
4. On the Techstream, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
5. Perform the Control the Injection Volume for A/F Sensor operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
6. Monitor the output voltages of the A/F and HO2 sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25 %.

1. Each sensor reacts in accordance with increases in the fuel injection volume.

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the HO2S (sensor 2) output has a maximum output delay of 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

1. Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the A/F and HO2 sensors.
2. To display the graph, enter the following menus on the Techstream: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / All Data / AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2; then press the graph button on the Data List view.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .
2. A low A/F sensor voltage could be caused by a rich air-fuel mixture. Check for conditions that would cause the engine to run rich.
3. A high A/F sensor voltage could be caused by a lean air-fuel mixture. Check for conditions that would cause the engine to run lean.

HINT

Techstream only

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the Air-Fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using Techstream.

1. Connect Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Warm up the engine at an engine speed of 2500 RPM for approximately 90 seconds.
4. On the Techstream, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
5. Perform the Control the Injection Volume for A/F Sensor operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
6. Monitor the output voltages of the A/F and HO2 sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%.

1. Each sensor reacts in accordance with increases and decreases in the fuel injection volume.

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output delay of approximately 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

1. Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the output voltages of both the A/F and HO2 sensors.
2. To display the graph, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / All Data / System AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2; then press the graph button on the Data List view.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

Scheme 58

Scheme 59

Scheme 60

1. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the A/F sensor connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Bank 1 sensor 1) Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher Standard resistance (Bank 2 sensor 1) Tester Connection Condition Specified Condition 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher Reconnect the A/F sensor connector. NG --> See step 8 OK: Go to next step
2. INSPECT FUSE (A/F FUSE) Remove the A/F fuse from the engine room R/B. Measure the A/F fuse resistance. Standard resistance Below 1 ohms Reinstall the A/F fuse. NG --> REPLACE A/F FUSE OK: Go to next step
3. INSPECT ENGINE ROOM JUNCTION BLOCK (A/F RELAY) Remove the engine room junction block from the engine room R/B. Measure the A/F relay resistance. Standard resistance Tester Connection Condition Specified Condition 1F-1 - 1C-6 Always 10 kohms or higher 1F-1 - 1C-6 Always Below 1 ohms (Apply battery voltage between terminals 1D-5 and 1H-2) Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the A/F sensor connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition B32-1 (HA1A) - B50-86 (HA1A) Always Below 1 ohms B32-3 (A1A+) - B50-93 (A1A+) Always Below 1 ohms B32-4 (A1A-) - B50-116 (A1A-) Always Below 1 ohms B26-1 (HA2A) - B50-109 (HA2A) Always Below 1 ohms B26-3 (A2A+) - B50-120 (A2A+) Always Below 1 ohms B26-4 (A2A-) - B50-119 (A2A-) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B32-1 (HA1A) or B50-86 (HA1A) - Body ground Always 10 kohms or higher B32-3 (A1A+) or B50-93 (A1A+) - Body ground Always 10 kohms or higher B32-4 (A1A-) or B50-116 (A1A-) - Body ground Always 10 kohms or higher B26-1 (HA2A) or B50-109 (HA2A) - Body ground Always 10 kohms or higher B26-3 (A2A+) or B50-120 (A2A+) - Body ground Always 10 kohms or higher B26-4 (A2A-) or B50-119 (A2A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the A/F sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
6. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC is P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256 is output B B --> See step 9 A --> END
8. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-428893-S38119987512011101200000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

HINT

Techstream only

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the Air-Fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using Techstream.

1. Connect Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Warm up the engine at an engine speed of 2500 RPM for approximately 90 seconds.
4. On the Techstream, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
5. Perform the Control the Injection Volume for A/F Sensor operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
6. Monitor the output voltages of the A/F and HO2 sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%.

1. Each sensor reacts in accordance with increases and decreases in the fuel injection volume.

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output delay of approximately 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

1. Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the output voltages of both the A/F and HO2 sensors.
2. To display the graph, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / All Data / System AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2; then press the graph button on the Data List view.

HINT

1. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

DTC SUMMARY

Refer to the EVAP System .

Refer to the EVAP System. Refer to EVAP System .

HINT

1. DTC P2610 is set if an internal ECM problem is detected. In this case, diagnostic procedures are not required. ECM replacement is required.
2. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

1. DTC P2610 is set if an internal ECM problem is detected. In this case, diagnostic procedures are not required. ECM replacement is required.
2. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

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

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1. CHECK VACUUM HOSES If the hose is damaged, replace the vacuum hose assembly. Check the air and vacuum hoses for looseness, disconnection and blockage. NG --> REPAIR OR REPLACE VACUUM HOSES OK: Go to next step
2. CHECK VACUUM Start the engine. Disconnect the vacuum hose from the air cleaner cap. Check that the disconnected port located on the vacuum tank applies suction to your finger. OK Vacuum pressure exists. Reconnect the vacuum hose. NG --> CHECK AND REPLACE VACUUM SOURCE AND HOSES OK: Go to next step
3. INSPECT DUTY VACUUM SWITCHING VALVE (OPERATION) Remove the VSV for ACM. Check operation of the VSV for ACM when positive battery voltage is applied to the terminals of the VSV for the ACM connector. Positive battery voltage is not applied The air from pipe G is flowing out through pipes E and H. Positive battery voltage is applied The air from pipe F is flowing out through pipes E and H. Reinstall the VSV for ACM. NG --> REPLACE DUTY VACUUM SWITCHING VALVE OK: Go to next step
4. INSPECT DUTY VACUUM SWITCHING VALVE (RESISTANCE) Disconnect the VSV for ACM connector. Measure the resistance between terminals 1 and 2. Standard resistance 19 to 21 ohms at 20°C (68°F) Reconnect the VSV for ACM connector. NG --> REPLACE DUTY VACUUM SWITCHING VALVE OK: Go to next step
5. INSPECT FRONT ENGINE MOUNTING INSULATOR ASSEMBLY Disconnect the vacuum hose from the front engine mount insulator. Using a vacuum pump, apply vacuum of 80 kPa (600 mmHg, 25 in.Hg) and wait for 1 minute. Check that there is no change in the needle movement of the vacuum pump gauge. Check that there is no fluid leakage caused by a break in the diaphragm. OK Vacuum pressure leak. Reconnect the vacuum hose. NG --> REPLACE FRONT ENGINE MOUNTING INSULATOR ASSEMBLY OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (VSV FOR ACM - ECM) Check the wire harness between the VSV for ACM connector and the ECM connector. Disconnect the VSV for ACM connector. Disconnect the ECM connector. Measure the resistance between the wire harness side connectors. Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-2 - B50-42 (ACM) Always Below 1 ohms Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-2 or B50-42 (ACM) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the VSV for ACM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR ACM - ECM) OK: Go to next step
7. INSPECT DUTY VACUUM SWITCHING VALVE (VOLTAGE) Disconnect the VSV for ACM connector. Turn the ignition switch to ON. Measure the voltage between the terminals. Standard voltage Tester Connection Switch Condition Specified Condition B15-1 - Body ground Ignition switch ON 11 to 14 V Reconnect the VSV for ACM connector. NG --> See step 8 OK --> See step 9
8. CHECK HARNESS AND CONNECTOR (VSV FOR ACM - ENGINE JUNCTION BLOCK (EFI RELAY)) Check the wire harness between the VSV for ACM and the EFI relay. Disconnect the VSV for ACM connector. Remove the engine room junction block. Measure the resistance between the wire harness side connectors. Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-1 - 1D-5 (Engine room relay block) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B15-1 or 1D-5 (Engine room relay block) - Body ground Always 10 kohms or higher Reconnect the VSV for ACM connector. Reinstall the engine room junction block. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
9. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

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

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure. The Techstream is required to conduct the following diagnostic troubleshooting procedure.

HINT

1. Using Techstream monitor results enables the EVAP (Evaporative Emission) system to be confirmed.
2. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

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1. CONFIRM DTC Turn the ignition switch off and wait for 10 seconds. Turn the ignition switch to ON. Turn the ignition switch off and wait for 10 seconds. Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes. Confirm DTCs and freeze frame data. If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below. NOTE: If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored. NEXT: Go to next step
2. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . On the Techstream, select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode. After the Evaporative System Check is completed, check for pending DTCs by selecting the following menu items: Powertrain / Engine / Trouble Codes / Pending. HINT: If no pending DTCs are displayed, perform the CONFIRMATION DRIVING PATTERN. After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal. NEXT: Go to next step
3. PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION) NOTE: In the Evaporative System Check (Manual Mode), perform the series of 5 Evaporative System Check steps manually using Techstream. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Manual Mode. NEXT: Go to next step
4. PERFORM EVAP SYSTEM CHECK (STEP 1/5) Check the EVAP pressure in step 1/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure Not yet determined A P0451 EVAP pressure fluctuates by +/-0.3 kPa (2.25 mmHg) or more Canister pressure sensor noise B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "CONFIRM DTC" procedures above. B --> See step 29 A: Go to next step
5. PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5) Check the EVAP pressure in steps 1/5 and 2/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure during step 1/5. Then decreases to reference pressure. Not yet determined A P2402 Small difference between EVAP pressures during steps 1/5 and 2/5 Leak detection pump stuck ON B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. HINT: The first reference pressure is the value determined in step 2/5. B --> See step 22 A: Go to next step
6. PERFORM EVAP SYSTEM CHECK (STEP 2/5) HINT: Make a note of the pressures checked in steps (a) and (b) below. (a) Check the EVAP pressure 4 seconds after the leak detection pump is activated*. *: The leak detection pump begins to operate as step 1/5 finishes and step 2/5 starts. (b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure in step (b) between -4.85 kPa and -1.057 kPa (-36.4 mmHg and -7.93 mmHg) Not yet determined A P043F and P2401 EVAP pressure in step (b) -1.057 kPa (-7.93 mmHg) or more Reference orifice high-flow Leak detection pump stuck OFF B P043E EVAP pressure in step (b) below -4.85 kPa (-36.4 mmHg) Reference orifice clogged C P2419 EVAP pressure in step (a) more than -1.057 kPa (-7.93 mmHg) Vent valve stuck closed D *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 11 C --> See step 29 D --> See step 20 A: Go to next step
7. PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 2/5 to step 3/5 Not yet determined A P2420 No variation in EVAP pressure despite proceeding from step 2/5 to step 3/5 Vent valve stuck open (vent) B P0451 No variation in EVAP pressure during steps 1/5 through 3/5 Canister pressure sensor output value stuck C *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 19 C --> See step 29 A: Go to next step
8. PERFORM EVAP SYSTEM CHECK (STEP 3/5) Wait until the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) for 30 seconds. Measure the EVAP pressure and record it. HINT: A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes. NEXT: Go to next step
9. PERFORM EVAP SYSTEM CHECK (STEP 4/5) Check the EVAP pressure in step 4/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Not yet determined A P0441 EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Problems in EVAP hose between purge VSV and intake manifold B P0441 Variation in EVAP pressure less than 0.3 kPa (2.25 mmHg) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 15 C --> See step 12 A: Go to next step
10. PERFORM EVAP SYSTEM CHECK (STEP 5/5) Check the EVAP pressure in step 5/5. Compare the EVAP pressure in step 3/5 and the second reference pressure (step 5/5). Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure from step 3/5 lower than second reference pressure (step 5/5) Not yet determined (no leakage from EVAP system) A P0441 and P0455 EVAP pressure from step 3/5 higher than [second reference pressure (step 5/5) x 0.2] Purge VSV stuck open EVAP gross leak B P0456 EVAP pressure from step 3/5 higher than second reference pressure (step 5/5) EVAP small leak B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. A --> See step 35 B --> See step 12
11. PERFORM EVAP SYSTEM CHECK (STEP 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to P043F EVAP pressure less than [reference pressure] measured in step 2/5 Reference orifice high-flow A P2401 EVAP pressure almost same as [reference pressure] measured in step 2/5 Leak detection pump stuck off B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. HINT: The first reference pressure is the value determined in step 2/5. A --> See step 29 B --> See step 22
12. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) On Techstream, select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for EVAP Control. Disconnect the hose (connected to the canister) from the purge VSV. Start the engine. Using the Techstream, turn off the purge VSV (Activate the VSV for EVAP Control: OFF). Use your finger to confirm that the purge VSV has no suction. Using the Techstream, turn on the purge VSV (Activate the VSV for EVAP Control: ON). Use your finger to confirm that the purge VSV has suction. Result Test Result Suspected Trouble Area Proceed to No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal A Suction applied when purge VSV turned off Purge VSV stuck open B No suction when purge VSV turned on Purge VSV stuck closed Problems with EVAP hose between purge VSV and intake manifold C Reconnect the hose. B --> See step 14 C --> See step 15 A: Go to next step
13. CHECK FUEL CAP Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications. Tighten the fuel cap until a few click sounds are heard. HINT: If an EVAP tester is available, check the fuel cap using the Techstream. Remove the fuel cap and install it onto a fuel cap adapter. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa (24 to 28 mmHg) using an EVAP tester pump. Seal the adapter and wait for 2 minutes. Check the pressure. If the pressure is 2 kPa (15 mmHg) or more, the fuel cap is normal. Result Test Result Suspected Trouble Area Proceed to Fuel cap correctly installed - A Fuel cap loose Fuel cap improperly installed Defective fuel cap Fuel cap does not meet OEM specifications B Defective fuel cap - B No fuel cap - C Reinstall the fuel cap. A --> See step 28 B --> See step 26 C --> See step 27
14. INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) Turn the ignition switch off. Disconnect the purge VSV connector. Disconnect the hose (connected to the canister) from the purge VSV. Start the engine. Use your finger to confirm that the purge VSV has no suction. Result Test Result Suspected Trouble Area Proceed to No suction ECM A Suction applied Purge VSV B Reconnect the purge VSV connector. Reconnect the hose. A --> See step 34 B --> See step 30
15. CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY) Disconnect the hose (connected to the intake air surge tank assembly) from the purge VSV. Start the engine. Use your finger to confirm that the hose has suction. Result Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between purge VSV and intake air surge tank assembly normal A No suction Intake manifold port EVAP hose between purge VSV and intake air surge tank assembly B Reconnect the hose. B --> See step 25 A: Go to next step
16. INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) Remove the purge VSV. Apply battery voltage to the terminals of the purge VSV. Using an air gun, confirm that air flows from port A to port B. Result Test Result Suspected Trouble Area Proceed to Air flows Purge VSV normal A No air flow Purge VSV B Install the purge VSV. B --> See step 30 A: Go to next step
17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the ignition switch to ON. Measure the voltage between terminal 1 of the purge VSV connector and body ground. Result Test Result Suspected Trouble Area Proceed to 11 to 14 V Normal A Other than result above Wire harness or connectors between purge VSV and ECM B Reconnect the purge VSV connector. B --> See step 31 A: Go to next step
18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector and the purge VSV connector. Measure the resistance. Standard resistance Tester Connection Condition Specified Condition B50-108 (PRG) - B31-2 (Purge VSV) Always Below 1 ohms B50-108 (PRG) - Body ground Always 10 kohms or higher B31-2 (Purge VSV) - Body ground Always 10 kohms or higher Reconnect the purge VSV connector. Reconnect the ECM connector. OK --> See step 34 NG --> See step 31
19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) Turn the ignition switch off. Disconnect the canister pump module connector. Turn the ignition switch to ON. Measure the voltage between the VLVB terminal of the canister pump module connector and body ground. Result Test Result Suspected Trouble Area Proceed to 11 to 14 V Wire harness between vent valve and ECM Vent valve ECM A Below 3 V Power source wire harness of vent valve B Reconnect the canister pump module connector. B --> See step 31 A: Go to next step
20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the ignition switch off. Disconnect the canister pump module connector. Apply battery voltage to the VLVB and VGND terminals of the canister pump module. Touch the canister pump module to confirm the vent valve operation. Result Test Result Suspected Trouble Area Proceed to Operating 1. Wire harness between vent valve and ECM 2. ECM A Not operating Vent valve B Reconnect the canister pump module connector. B --> See step 29 A: Go to next step
21. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Disconnect the ECM connector. Disconnect the canister pump module connector. Measure the resistance between the VPMP terminal of the ECM connector and the VGND terminal of the canister pump module connector. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Reconnect the ECM connector. Reconnect the canister pump module connector. A --> See step 34 B --> See step 31
22. PERFORM ACTIVE TEST USING TECHSTREAM (LEAK DETECTION PUMP (ALONE)) Turn the ignition switch off. Disconnect the canister pump module connector. Turn the ignition switch to ON. On Techstream, select the following menu items: Powertrain / Engine / Active Test / Activate the Vacuum Pump. Measure the voltage between MTRB terminal 1 of the canister pump module connector and body ground when the leak detection pump is turned ON and OFF using the Techstream. Result Test Result Suspected Trouble Area Proceed to Below 3 V when OFF 11 to 14 V when ON Wire harness between leak detection pump and body ground Leak detection pump A Below 3 V when OFF and ON Wire harness between leak detection pump and ECM ECM B 11 to 14 V when OFF and ON ECM C B --> See step 24 C --> See step 34 A: Go to next step
23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) Turn the ignition switch off. Disconnect the canister pump module connector. Measure the resistance between the MGND terminal of the canister pump module connector and body ground. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms Leak detection pump A 10 kohms or higher Wire harness between canister pump module and body ground B Reconnect the canister pump module connector. A --> See step 29 B --> See step 31
24. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Turn the ignition switch off. Disconnect the canister pump module connector. Disconnect the ECM connector. Measure the resistance between the MPMP terminal of the ECM connector and the MTRB terminal of the canister pump module connector. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Reconnect the canister pump module connector. Reconnect the ECM connector. A --> See step 34 B --> See step 31
25. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) Stop the engine. Disconnect the EVAP hose from the intake manifold. Start the engine. Use your finger to confirm that the port of the intake manifold has suction. Result Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B Reconnect the EVAP hose. A --> See step 32 B --> See step 33
26. CORRECTLY REINSTALL OR REPLACE FUEL CAP HINT: When reinstalling the fuel cap, tighten it until a few click sounds are heard. When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install it until a few click sounds are heard. NEXT --> See step 36
27. REPLACE FUEL CAP HINT: When installing the fuel cap, tighten it until a few click sounds are heard. NEXT --> See step 36
28. LOCATE EVAP LEAK PART Disconnect the vent hose. Connect the EVAP pressure tester tool to the canister pump module with the adapter. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg). Apply soapy water to the piping and connecting parts of the EVAP system. Look for areas where bubbles appear. This indicates the leak point. Repair or replace the leak point. HINT: Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks. NEXT --> See step 36
29. REPLACE CHARCOAL CANISTER ASSEMBLY Replace the canister assembly. Refer to «REMOVAL»(ref-428893-S08882787612011101200000) . NOTE: When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. NEXT --> See step 36
30. REPLACE DUTY VACUUM SWITCHING VALVE (PURGE VSV) Disconnect the connector and the 2 hoses from the purge VSV. Remove the purge VSV. Install a new purge VSV. Reconnect the connector and 2 hoses. NEXT --> See step 36
31. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> See step 36
32. REPLACE EVAP HOSE (INTAKE AIR SURGE TANK ASSEMBLY - PURGE VSV) NEXT --> See step 36
33. INSPECT INTAKE AIR SURGE TANK ASSEMBLY (EVAP PURGE PORT) Check that the EVAP purge port of the intake air surge tank assembly is not clogged. If necessary, replace the intake air surge tank assembly. NEXT --> See step 36
34. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000) . NEXT --> See step 36
35. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in. NEXT: Go to next step
36. PERFORM EVAP SYSTEM CHECK (AUTOMATIC OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine in this step. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . On Techstream, select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode. After the Evaporative System Check is completed, check for pending DTCs by selecting the following menu items: Powertrain / Engine / Trouble Codes / Pending. HINT: If no pending DTCs are found, the repair has been successfully completed. NEXT --> COMPLETED

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure. The Techstream is required to conduct the following diagnostic troubleshooting procedure.

HINT

1. Using Techstream monitor results enables the EVAP (Evaporative Emission) system to be confirmed.
2. Read freeze frame data using 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. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

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

Scheme 87

Scheme 88

Scheme 89

Scheme 90

1. CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND) Disconnect the ECM connector. Measure the resistance between the terminals. Standard Resistance Tester Connection Condition Specified Condition B50-81 (E1) - Body ground Always Below 1 ohms Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND) OK: Go to next step
2. INSPECT ECM (IGSW VOLTAGE) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage between the terminals. Standard Voltage Tester Connection Switch Condition Specified Condition A55-28 (IGSW) - Body ground Ignition switch ON 11 to 14 V Reconnect the ECM connector. NG --> See step 6 OK: Go to next step
3. INSPECT ENGINE ROOM JUNCTION BLOCK (EFI RELAY) Remove the engine room junction block from the engine room R/B. Disconnect the engine room junction block connector. Measure the resistance between the terminals. Standard Resistance Tester Connection Condition Specified Condition 1D-4 - 1D-6 Always 10 kohms or higher 1D-4 - 1D-6 Always Below 1 ohms (Battery voltage applied between terminals 1H-10 and 1H-2) Reconnect the engine room junction block connector. Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (ECM - ENGINE ROOM JUNCTION BLOCK) Disconnect the ECM connector. Remove the engine room junction block from the engine room R/B. Disconnect the engine room junction block connector. Measure the resistance between the terminals. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1D-4 - A55-2 (+B) Always Below 1 ohms 1D-4 - A55-1 (+B2) Always Below 1 ohms A55-44 (MREL) - 1H-10 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1D-4 or A55-2 (+B) - Body ground Always 10 kohms or higher 1D-4 or A55-1 (+B2) - Body ground Always 10 kohms or higher A55-44 (MREL) or 1H-10 - Body ground Always 10 kohms or higher Reconnect the engine room junction block connector. Reinstall the engine room junction block. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK - BODY GROUND) Remove the engine room junction block from the engine room R/B. Disconnect the engine room junction block connector. Measure the resistance between the terminals. Standard Resistance Tester Connection Condition Specified Condition 1H-2 - Body ground Always Below 1 ohms Reconnect the engine room junction block connector. Reinstall the engine room junction block. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK - BODY GROUND) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK - BATTERY)
6. INSPECT RELAY (IG2 RELAY) Remove the IG2 relay from the engine room R/B. Measure the resistance the terminals. Standard Resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (Battery voltage applied between terminals 1 and 2) Reinstall the IG2 relay. NG --> REPLACE RELAY (IG2 RELAY) OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (IG2 RELAY - ECM) Remove the IG2 relay from the engine room R/B. Disconnect the ECM connector. Measure the resistance between the terminals. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3 (IG2 relay terminal) - A55-28 (IGSW) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 3 (IG2 relay terminal) or A55-28 (IGSW) - Body ground Always 10 kohms or higher Reinstall the IG2 relay. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - ECM) OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (IG2 RELAY POWER SOURCE) Remove the IG2 relay from the engine room R/B. Measure the voltage between the terminals. Standard Voltage Tester Connection Condition Specified Condition 5 (IG2 relay terminal) - Body ground Always 11 to 14 V Reinstall the IG2 relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BATTERY) OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND) Remove the IG2 relay from the engine room R/B. Measure the resistance between the terminals. Standard Resistance Tester Connection Condition Specified Condition 2 (IG2 relay terminal) - Body ground Always Below 1 ohms Reinstall the IG2 relay. Result Result Proceed to OK (w/o Smart key system) A OK (w/ Smart key system) B NG C B --> See step 12 C --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BODY GROUND) A: Go to next step
10. CHECK HARNESS AND CONNECTOR (IG2 RELAY - IGNITION SWITCH ASSEMBLY) Remove the IG2 relay from the engine room R/B. Disconnect the ignition switch assembly connector. Measure the resistance between the terminals. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) - D30-6 (IG2) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) or D30-6 (IG2) - Body ground Always 10 kohms or higher Reinstall the IG2 relay. Reconnect the ignition switch assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - IGNITION SWITCH ASSEMBLY) OK: Go to next step
11. INSPECT IGNITION SWITCH ASSEMBLY Disconnect the ignition switch connector. Measure the resistance between the terminals. Standard Resistance Tester Connection Ignition Switch Position Specified Condition All terminals LOCK 10 kohms or higher 2 - 4 ACC Below 1 ohms 1 - 2 - 4, 5 - 6 ON Below 1 ohms 1 - 3 - 4, 5 - 6 - 7 START Below 1 ohms Reconnect the ignition switch connector. NG --> REPLACE IGNITION SWITCH ASSEMBLY OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH ASSEMBLY - BATTERY)
12. CHECK HARNESS AND CONNECTOR (IG2 RELAY - POWER SOURCE CONTROL ECU) Disconnect the power source control ECU connector. Remove the IG2 relay from the engine room R/B. Measure the resistance between the terminals. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) - D44-35 (IG2D) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) or D44-35 (IG2D) - Body ground Always 10 kohms or higher Reconnect the power source control ECU connector. Reinstall the IG2 relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - POWER SOURCE CONTROL ECU) OK --> See step 13
13. GO TO SMART KEY SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-428890-S09131314092011101200000)

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

Scheme 91

Scheme 92

1. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE C/OPN RELAY) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. Check whether the fuel pump operation sound occurs when performing the Active Test on the Techstream. OK Fuel pump operating sound occurs. NG --> See step 3 OK --> See step 2
2. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S10985638622011101200000)
3. CHECK ECM POWER SOURCE CIRCUIT Check the ECM power source circuit. Refer to «ECM Power Source Circuit»(ref-428883-S06863030212011101200000) . NG --> REPAIR OR REPLACE ECM POWER SOURCE CIRCUIT OK: Go to next step
4. INSPECT ENGINE ROOM JUNCTION BLOCK (C/OPN RELAY) Remove the engine room junction block from the engine room R/B. Disconnect the engine room junction block connector. Measure the C/OPN relay resistance. Standard resistance Tester Connection Condition Specified Condition 1D-5 - 1D-3 Always 10 kohms or higher 1D-5 - 1D-3 Always Below 1 ohms (Battery voltage applied between terminals 1G-5 and 1H-9) Reconnect the engine room junction block connector. Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK: Go to next step
5. INSPECT ECM (FC VOLTAGE) Disconnect the ECM connectors. Turn the ignition switch to ON. Measure the voltage between the terminals of the ECM connectors. Standard voltage Tester Connection Switch Condition Specified Condition A55-7 (FC) - B50-81 (E1) Ignition switch ON 11 to 14 V Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BATTERY) OK: Go to next step
6. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION»(ref-428891-S21911458952011101200000) . NG --> See step 9 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (C/OPN RELAY - FUEL PUMP - BODY GROUND) Check the harness and the connectors between the engine room relay block and the fuel pump. Disconnect the engine room junction block connector. Disconnect the fuel pump connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Condition Specified Condition 1D-3 - K7-4 (Fuel pump) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition 1D-3 or K7-4 (Fuel pump) - Body ground Always 10 kohms or higher Check the harness and the connectors between the fuel pump and body ground. Disconnect the fuel pump connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Condition Specified Condition K7-5 (Fuel pump) - Body ground Always Below 1 ohms Reconnect the engine room junction block connector. Reconnect the fuel pump connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
8. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
9. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-428891-S09493308542011101200000)

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

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

Scheme 93

Scheme 94

Scheme 95

Scheme 96

1. CHECK CRANKING When starting the engine, check whether the starter motor starts. NG --> See step 2 OK --> See step 13
2. READ VALUE USING TECHSTREAM (STARTER SIGNAL) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Data List / All Data / Starter Signal. Check the value displayed on the Techstream when the ignition switch is turned to ON and START. OK Ignition Switch Position Starter Signal ON Close (Starter signal OFF) START Open (Starter signal ON) Result Result Proceed to NG A OK B B --> See step 7 A: Go to next step
3. INSPECT ECM (STSW VOLTAGE) Disconnect the ECM Connector. Turn the ignition switch to ON. Measure the voltage between the terminal of the ECM connector and body ground while cranking the engine. Standard voltage Tester Connection Switch Condition Specified Condition A55-14 (STSW) - Body ground Ignition switch START position 11 to 14 V Reconnect the ECM connector. NG --> See step 11 OK: Go to next step
4. INSPECT ECM (STAR VOLTAGE) Remove the ST CUT relay from the engine room R/B. Turn the ignition switch to ON. Measure the voltage between the terminal of the engine room R/B and body ground while cranking the engine. Standard voltage Tester Connection Switch Condition Specified Condition 3 (ST CUT relay terminal) - Body ground Ignition switch START position 11 to 14 V Reinstall the ST CUT relay. NG --> See step 8 OK: Go to next step
5. INSPECT ST CUT RELAY Remove the ST CUT relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (Battery voltage applied to terminals 1 and 2) Reinstall the ST CUT relay. NG --> REPLACE ST CUT RELAY OK: Go to next step
6. INSPECT PARK/NEUTRAL SWITCH ASSEMBLY Inspect the Park/Neutral Position (PNP) switch. Disconnect the PNP switch connector. Measure the resistance according to the value(s) in the table below. Standard resistance Gear Selector Lever Position Tester Connection Specified Condition P 4 - 9 Below 1 ohms N 4 - 9 Below 1 ohms Reconnect the PNP switch connector. NG --> See step 14 OK --> CHECK HARNESS AND CONNECTOR (STARTER SIGNAL CIRCUIT)
7. INSPECT ST RELAY Remove the ST relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (Battery voltage applied to terminals 1 and 2) Reinstall the ST relay. NG --> REPLACE ST RELAY OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY) Disconnect the park/neutral position switch connector. Remove the ST relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B13-9 - 1 (ST relay terminal) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B13-9 or 1 (ST relay terminal) - Body ground Always 10 kohms or higher Reinstall the ST relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. INSPECT ENGINE ROOM RELAY BLOCK (ST RELAY VOLTAGE) Remove the ST relay from the engine room R/B. Turn the ignition switch to ON. Measure the voltage between the terminal of the engine room R/B and body ground. Standard voltage Tester Connection Switch Condition Specified Condition 1 (ST relay terminal) - Body ground Ignition switch START position 11 to 14 V Reinstall the ST relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
10. INSPECT STARTER ASSEMBLY Inspect the starter assembly. Refer to «INSPECTION»(ref-428888-S05521728322011101200000) . NG --> See step 15 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - STARTER, STARTER - BATTERY)
11. CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - ECM) Disconnect the power source control ECU connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition D44-39 (STSW) - A55-14 (STSW) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition D44-39 (STSW) or A55-14 (STSW) - Body ground Always 10 kohms or higher Reconnect the power source control ECU connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
12. GO TO SMART KEY SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-428890-S09131314092011101200000)
13. PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S10985638622011101200000)
14. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-428872-S15416190282011101200000)
15. REPAIR OR REPLACE STARTER ASSEMBLY. Refer to «REMOVAL»(ref-428888-S40444197632011101200000)

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

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

Scheme 97

Scheme 98

1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR INTAKE CONTROL) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for Intake Control. Check if operating noise can be heard when operating the intake air control valve using the Techstream. OK Operational noise can be heard. NG --> See step 2 OK --> See step 5
2. CHECK INTAKE AIR SURGE TANK (INTAKE AIR CONTROL VALVE OPERATION) Disconnect the intake air control valve connector. Apply battery voltage between the terminals of the air intake valve connector. Check the intake air intake valve operation. OK Operational noise can be heard. Reconnect the intake air control valve connector. NG --> REPLACE INTAKE AIR SURGE TANK OK: Go to next step
3. INSPECT TERMINAL VOLTAGE (INTAKE AIR CONTROL VALVE) Disconnect the intake air control valve connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) on the table below. Standard voltage Tester Connection Switch Condition Specified Condition B18-2 - Body ground Ignition switch ON 11 to 14 V Reconnect the intake air control valve connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - INTAKE AIR CONTROL VALVE) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE - ECM) Check the wire harness and connectors between the intake air control valve and ECM. Disconnect the intake air control valve connector. Disconnect the ECM connector. Measure the resistance between the terminals of the intake air control valve connector and ECM connector. Standard resistance (Check for open) Tester Connection Condition Specified Condition B18-1 - B50-107 (ACIS) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B18-1 or B50-107 (ACIS) - Body ground Always 10 kohms or higher Reconnect the intake air control valve connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTAKE AIR CONTROL VALVE - ECM) OK --> See step 6
5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S10985638622011101200000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

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

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

Scheme 99

Scheme 100

1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR AICS) Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for AICS. Check the operation of the VSV when the VSV is operated by Techstream. OK Tester Condition Specified Condition VSV is ON Air from port E flows out through port F VSV is OFF Air from port E flows out through the air filter NG --> See step 2 OK --> PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
2. CHECK VSV (FOR AICV) Inspect the VSV for AICV. Refer to «INSPECTION»(ref-428900-S12192469092011101200000) . NG --> REPLACE VSV (FOR AICV) OK: Go to next step
3. INSPECT TERMINAL VOLTAGE (VSV FOR AICV CONNECTOR) Disconnect the VSV for AICV connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) on the table below. Standard voltage Tester Connection Switch Condition Specified Condition A13-1 - Body ground Ignition switch ON 11 to 14 V Reconnect the VSV for AICV connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - VSV FOR AICV) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (VSV FOR AICV - ECM) Check the wire harness between the VSV for AICV connector and the ECM connector. Disconnect the VSV for AICV connector. Disconnect the ECM connector. Measure the resistance between the terminals of the wire harness side connectors and body ground. Standard resistance (Check for open) Tester Connection Condition Specified Condition A13-2 - A55-4 (AICV) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A13-2 or A55-4 (AICV) - Body ground Always 10 kohms or higher Reconnect the VSV for AICV connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR AICV - ECM) OK: Go to next step
5. INSPECT VACUUM TANK Inspect the vacuum tank. Refer to «INSPECTION - Step 1»(ref-428894-S31218658342011101200000) . NG --> REPLACE AIR CLEANER ASSEMBLY OK --> See step 6
6. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

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