Engine Control System (2GR-FE) (Diagnostic Codes (P1604 - P2610) & Circuit Tests)): Other Toyota Highlander II рестайлинг

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) .
4. Turn the ignition switch off and wait for 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on.
6. Wait 16 seconds or more [A].
7. Enter the following menus: Powertrain / Engine / Trouble Codes.
8. Read the DTC [B].
9. If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
11. Input the DTC: P1607.
12. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [A] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
15. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

PROCEDURE

1. READ OUTPUT DTC (DTC P1607) Connect the Techstream to the DLC3. Turn the ignition switch to on (IG). Turn the Techstream on. Clear DTC, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch to off and turn the Techstream off. Disconnect the Techstream. Disconnect the cable from the battery negative (-) terminal and wait for 1 minute. Connect the cable to the battery negative (-) terminal. Connect the Techstream to the DLC3. Turn the ignition switch to on (IG). Wait 16 seconds or more. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes. Read DTCs. Result Result Proceed to No output A P1607 B B --> See step 3 A --> See step 2
2. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-422300-S41051796092011092600000)
3. REPLACE ECM. Refer to «REMOVAL»(ref-422482-S28309387782011092600000)

ALL

P2102

P2103

P2102

P2103

FAIL-SAFE

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed.

If the accelerator pedal is depressed gently, the vehicle can be driven slowly.

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

Scheme 503

Scheme 504

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
8. Check that 16 seconds or more have elapsed from the instant when the accelerator pedal is first depressed.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
10. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2102 or P2103.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
14. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

ALL

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

*: System guard set when following conditions met

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed.

If the accelerator pedal is depressed slowly, the vehicle can be driven slowly.

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

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to P2111 or P2112 is output A P2111 or P2112 and other DTCs are output B HINT: If any DTCs other than P2111 or P2112 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
2. INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 4 OK: Go to next step
3. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch on (IG). Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B *: As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector, refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-422289-S37007492172011092600000) . B --> See step 5 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
4. REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly, refer to «REMOVAL»(ref-422482-S15054237452011092600000) . NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Start the engine, and then fully depress and release the accelerator pedal quickly to fully open and close the throttle valve. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to No DTC is output A P2111 or P2112 is output B B --> See step 6 A --> END
6. REPLACE ECM. Refer to «COMPONENTS»(ref-422482-S29849271832011092600000)

COMPONENT OPERATING RANGE

When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed gently, the vehicle can be driven slowly.

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

Scheme 505

Scheme 506

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Slowly depress the accelerator pedal, raise the engine speed to approximately 3000 RPM over approximately 5 seconds, and then idle the engine [B].
8. Check that 16 seconds or more have elapsed since the engine was started.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
10. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2118.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
14. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed slowly, the vehicle can be driven slowly.

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

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to P2119 is output A P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
2. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch on (IG). Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1 and Throttle Position Command. Check the values displayed on the Techstream while fully depressing and releasing the accelerator pedal quickly. RESULT Result Proceed to Throttle Position No. 1 does not change A Throttle Position No. 1 changes even a little B HINT: When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation. B --> See step 4 A: Go to next step
3. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly, refer to «REMOVAL»(ref-422482-S15054237452011092600000) . NG --> See step 6 OK: Go to next step
4. INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 6 OK: Go to next step
5. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch on (IG). Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector, refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-422289-S37007492172011092600000) . B --> See step 7 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
6. REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly, refer to «REMOVAL»(ref-422482-S15054237452011092600000) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Allow the engine to idle for 15 seconds or more. Fully depress and release the accelerator pedal several times quickly. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to No DTC is output A P2119 is output B B --> REPLACE ECM A --> END
8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-422300-S11996203412011092600000)

P2120

P2122

P2123

P2125

P2127

P2128

P2138

When any of DTCs P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138 are set, the ECM enters fail-safe mode. If either of the 2 sensor circuits malfunctions, the ECM uses the remaining circuit to calculate the accelerator pedal position to allow the vehicle to continue driving. If both of the circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.

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

Scheme 507

Scheme 508

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on [A].
6. Fully depress and release the accelerator pedal [B].
7. Check that 5 seconds or more have elapsed since the ignition switch was turned on (IG).
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2120, P2122, P2123, P2125, P2127, P2128 or P2138.
12. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
13. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

The accelerator pedal position sensor has 2 (main and sub) sensor circuits. If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the 2 sensor circuits and switches to limp mode. In limp mode, the functioning circuit is used to calculate the accelerator pedal opening angle to allow the vehicle to continue driving. If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal as being fully closed. In this case, the throttle valve remains closed as if the engine is idling.

If a pass condition is detected and then the ignition switch is turned off, the fail-safe operation stops and the system returns to a normal condition.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2121) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. Result Display (DTC Output) Proceed to P2121 is output A P2121 and other DTCs are output B HINT: If any DTCs other than P2121 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
2. READ VALUE USING TECHSTREAM (ACCELERATOR PEAL POSITION SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Select the following menu items: Powertrain / Engine and ECT / Data List / Accelerator Position No. 1 and Accelerator Position No. 2. Read the values displayed on the tester. Standard voltage Accelerator Pedal Operation Accel Sensor Out No. 1 Accel Sensor Out No. 2 Difference between Accel Sensor Out No. 1 and Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V 0.4 to 1.2 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V NG --> See step 3 OK --> CHECK FOR INTERMITTENT PROBLEMS
3. REPLACE ACCELERATOR PEDAL POSITION SENSOR ASSEMBLY Replace accelerator pedal position sensor assembly, refer to «COMPONENTS»(ref-422482-S01651320232011092600000) . NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Start the engine. Allow the engine to idle for 15 seconds. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P2121 A No output B B --> END A --> See step 5
5. REPLACE ECM. Refer to «COMPONENTS»(ref-422482-S29849271832011092600000)

ALL

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195, P2197)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)

SENSOR CURRENT DETECTION MONITOR P2195, P2196, P2197, P2198

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195, P2197)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)

SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195, P2197)

SENSOR CURRENT DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)

MONITOR RESULT

Refer to CHECKING MONITOR STATUS, refer to CHECKING MONITOR STATUS .

Scheme 509

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

Scheme 510

Scheme 511

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG).
3. Turn the Techstream on.
4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch on (IG) and turn the Techstream on.
7. Start the engine and warm it up until the ECT reaches 75°C (167°F) or higher [A].
8. On the Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine and ECT / Data List / Idle Fuel Cut.
9. Drive the vehicle at a speed between 60 and 120 km/h (38 and 75 mph) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
10. Shift the transmission to 2nd gear [C].
11. Accelerate the vehicle to 64 km/h (40 mph) or more by depressing the accelerator pedal for at least 10 seconds [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Soon after performing step [D] above, release the accelerator pedal for at least 4 seconds without depressing the brake pedal in order to execute fuel-cut control [E]. HINT: Fuel-cut is performed when the following conditions are met: Accelerator pedal is fully released. Engine speed is 2500 RPM or more (fuel injection returns at 1000 RPM).
13. Allow the vehicle to decelerate until the vehicle speed decreases to less than 10 km/h (6 mph).
14. Repeat steps [C] through [E] above at least 3 times in one driving cycle.
15. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [F].
16. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
17. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
18. Input the DTC: P2195, P2196, P2197 or P2198.
19. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [F] again.
20. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, P2197 OR P2198) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2195, P2196, P2197 or P2198 is output A "P2195, P2196, P2197 or P2198" and "P0136, P0137, P0138, P0156, P0157 or P0158" are output A P2195, P2196, P2197 or P2198 and other DTCs are output B HINT: If any DTCs relating to the air fuel ratio sensor (DTCs for the air fuel ratio sensor heater or air fuel ratio sensor admittance) are output, troubleshoot those DTCs first. B --> See step 17 A: Go to next step
2. CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 4 YES: Go to next step
3. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off. Turn the ignition switch on (IG) and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> See step 4 A --> DTC CAUSED BY RUNNING OUT OF FUEL
4. READ VALUE USING TECHSTREAM (TEST VALUE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Drive the vehicle in accordance with the drive pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Current. Check that the status of O2 Sensor is Complete. If the status is still Incomplete, drive the vehicle according to the driving pattern again. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details / RANGE B1 S1 or RANGE B2 S1. Check the test value of the air fuel ratio sensor output current during fuel-cut. RESULT Test Value Proceed to Within normal range (0.8 mA or higher, and below 2.2 mA) A Outside normal range (below 0.8 mA, or 2.2 mA or higher) B B --> See step 14 A: Go to next step
5. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the air fuel ratio sensor at an engine speed of 2500 RPM for 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume. Perform the Control the Injection Volume operation with the engine idling. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12.0% to +12.0%. The injection volume can be changed in fine gradations. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +12.0% Rich Below 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.0% Lean Higher than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +12.0% Rich Higher than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.0% Lean Below 0.4 V RESULT Status of AFS Voltage B1S1 or AFS Voltage B2S1 Status of O2S B1S2 or O2S B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Fuel injector blockage Gas leaks from exhaust system Intake system Fuel pressure Mass air flow meter assembly Engine coolant temperature sensor A Rich Rich Actual air fuel ratio rich - Fuel injector leakage or blockage Gas leaks from exhaust system Ignition system Fuel pressure Mass air flow meter assembly Engine coolant temperature sensor A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Lean/Rich Lean/Rich Normal - - C Lean: During the Control the Injection Volume Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently below 0.4 V. Rich: During the Control the Injection Volume Active Test, the AFS Voltage is consistently below 3.1 V, and the O2S is consistently higher than 0.55 V. Lean/Rich: During the Control the Injection Volume Active Test, the output voltage of the heated oxygen sensor alternates correctly. HINT: Refer to "Data List / Active Test" [AFS Voltage B1S1, AFS Voltage B2S1, O2S B1S2 and O2S B2S2], refer to «DATA LIST / ACTIVE TEST»(ref-422300-S16355129752011092600000) . B --> See step 14 A: Go to next step
6. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks, refer to «ON-VEHICLE INSPECTION»(ref-422486-S05660636552011092600000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
7. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
8. CHECK FUEL PRESSURE Check the fuel pressure, refer to «ON-VEHICLE INSPECTION»(ref-422479-S13441752352011092600000) . NG --> See step 16 OK: Go to next step
9. INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly (whether fuel volume is high or low, and whether injector pattern is poor), refer to «INSPECTION»(ref-422481-S02899962322011092600000) . NG --> See step 18 OK: Go to next step
10. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «COMPONENTS»(ref-422482-S35756680872011092600000) . NEXT: Go to next step
11. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off. Turn the ignition switch on (IG) and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) A NORMAL (DTC is not output) B B --> END A: Go to next step
12. REPLACE ECM Replace the ECM, refer to «COMPONENTS»(ref-422482-S29849271832011092600000) . NEXT: Go to next step
13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear the DTC, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off. Turn the ignition switch on (IG) and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit NEXT --> END
14. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «COMPONENTS»(ref-422482-S35756680872011092600000) . NEXT: Go to next step
15. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Turn the ignition switch off. Turn the ignition switch on (IG) and turn the Techstream on. Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> REPLACE ECM A --> END
16. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> REPLACE FUEL PUMP
17. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-422300-S11996203412011092600000)
18. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «COMPONENTS»(ref-422481-S19451899152011092600000)

CAUTION / NOTICE / HINT

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 and located near the engine assembly.

P2237 AND P2240 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

P2238 AND P2241 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

OTHERS

P2237 AND P2240 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

P2238 AND P2241 (OPEN CIRCUIT BETWEEN A1A+ AND A2A-)

P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND GND/A2A+ AND GND)

P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

P2239 AND P2242 (SHORT CIRCUIT BETWEEN A1A+ AND +B/A2A+ AND +B)

P2252 AND P2255 (SHORT CIRCUIT BETWEEN A1A- AND GND/A2A- AND GND)

P2253 AND P2256 (SHORT CIRCUIT BETWEEN A1A- AND +B/A2A- AND +B)

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on.
6. Start the engine and wait 5 minutes.
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256.
11. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again.
12. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Bank 1 Bank 2 Tester Connection Specified Condition B20-3 (A1A+) - B49-1 (A1A+) Below 1 ohms B20-4 (A1A-) - B49-2 (A1A-) Below 1 ohms Tester Connection Specified Condition B19-3 (A2A+) - B49-7 (A2A+) Below 1 ohms B19-4 (A2A-) - B49-8 (A2A-) Below 1 ohms Standard resistance (Check for short) Bank 1 Bank 2 Tester Connection Specified Condition B20-3 (A1A+) or B49-1 (A1A+) - Body ground 10 kohms or higher B20-4 (A1A-) or B49-2 (A1A-) - Body ground 10 kohms or higher Tester Connection Specified Condition B19-3 (A2A+) or B49-7 (A2A+) - Body ground 10 kohms or higher B19-4 (A2A-) or B49-8 (A2A-) - Body ground 10 kohms or higher Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
2. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «COMPONENTS»(ref-422482-S35756680872011092600000) . NEXT: Go to next step
3. PERFORM CONFIRMATION DRIVING PATTERN Drive the vehicle referring the Confirmation Driving Pattern on DTC P2195, refer to «CONFIRMATION DRIVING PATTERN»(ref-422478-S18702958042011092600000) . NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Turn the tester on. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes / Pending. Read pending DTCs. Result Result Proceed to No output A P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256 B B --> See step 5 A --> END
5. REPLACE ECM. Refer to «COMPONENTS»(ref-422482-S29849271832011092600000)

Refer to CHECKING MONITOR STATUS, refer to CHECKING MONITOR STATUS .

Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by Techstream. It takes a maximum of the approximately 23 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F).

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
7. After "Evaporative System Check" is completed, check All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P2420.
9. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
10. If the judgment result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

CASE 1

CASE 2

CASE 3

CASE 1

CASE 2

CASE 3

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch on (IG) and turn the Techstream on.
6. Start the engine.
7. Idle the engine for 10 minutes or more.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2610.
12. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
13. If the judgment result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. REPLACE ECM Replace the ECM, refer to «COMPONENTS»(ref-422482-S29849271832011092600000) . NEXT: Go to next step
2. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch on (IG). Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Start the engine and wait for 10 minutes or more. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes / Pending. If no pending DTC is displayed, the repair has been successfully completed. OK No DTC output. NG --> See step 3 OK --> END
3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-422300-S41051796092011092600000)

RELATED DTCS

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

Scheme 512

Note. If the 0.02 inch reference pressure difference between the first and second checks is greater than the specification, the DTCs corresponding to the reference pressure (P043E, P043F, P0441, P0455, P0456, P2401, P2420) will be all stored.

HINT

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

1. KEY-OFF MONITOR CONFIRMATION Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway) The fuel tank is less than 90% full The altitude is less than 8000 ft. (2400 m) The Engine Coolant Temperature (ECT) is between 4.4°C and 35°C (40°F and 95°F) The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F) The vehicle remains stationary (the vehicle speed is 0 mph [0 km/h]) Monitor Conditions Allow the engine to idle for at least 5 minutes. Turn the ignition switch off and wait for 6 hours (8 or 10.5 hours). HINT: Do not start the engine until checking Monitor Status. If the engine is started, the steps described above must be repeated. Monitor Status Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Select the following menu items: Powertrain / Engine and ECT / Monitor / Evaporative System. Check the "Monitor Status" displayed on the tester. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform "Monitor Conditions" again.
2. PURGE FLOW MONITOR CONFIRMATION (P0441) HINT: Perform this monitor confirmation after the Key-Off Monitor Confirmation shows Complete. Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway) The ECT is between 4.4°C and 35°C (40°F and 95°F) The IAT is between 4.4°C and 35°C (40°F and 95°F) Monitor Conditions Release the pressure from the fuel tank by removing and reinstalling the fuel tank cap. Warm the engine up until the ECT reaches more than 75°C (167°F). Increase the engine speed to 3000 RPM once. Allow the engine to idle and turn the A/C ON for 1 minute. Monitor Status Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Select the following menu items: Powertrain / Engine and ECT / Monitor. Check the "Monitor Status" displayed on the tester. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform "Monitor Conditions" again.

Scheme 513

1. Refer to Checking Monitor Status for detailed information, refer to «CHECKING MONITOR STATUS»(ref-422300-S26131282622011092600000) .
2. The test value and test limit information are described as shown in the following table. This information is included in Monitor Result of the emissions-related DTC sections: MID (Monitor Identification Data) is assigned to each emissions-related component. TID (Test Identification Data) is assigned to each test value. Scaling is used to calculate the test value indicated on generic OBD II scan tools. THERMOSTAT MID TID Scaling Description of Test Value Minimum Test Limit Maximum Test Limit $3D $C9 Multiply by 0.01 [kPa] Test value for small leak (P0456) Refer to pressure D* Minimum test limit for small leak Maximum test limit for small leak $3D $CA Multiply by 0.01 [kPa] Test value for gross leak (P0455) Refer to pressure E* Minimum test limit for gross leak Maximum test limit for gross leak $3D $CB Multiply by 0.01 [kPa] Test value for vacuum pump stuck OFF (P2401) Refer to pressure A* Minimum test limit for vacuum pump stuck OFF Maximum test limit for vacuum pump stuck OFF $3D $CD Multiply by 0.01 [kPa] Test value for vacuum pump stuck ON (P2402) Refer to pressure A* Minimum test limit for vacuum pump stuck ON Maximum test limit for vacuum pump stuck ON $3D $CE Multiply by 0.01 [kPa] Test value for vent valve stuck OFF (vent) (P2420) Refer to pressure C* Minimum test limit for vent valve stuck ON Maximum test limit for vent valve stuck ON $3D $CF Multiply by 0.01 [kPa] Test value for vent valve stuck ON (P2419) Refer to pressure A* Minimum test limit for vent valve stuck OFF Maximum test limit for vent valve stuck OFF $3D $D0 Multiply by 0.01 [kPa] Test value for 0.02 inch orifice low flow (P043E) Refer to pressure B* Minimum test limit for 0.02 inch orifice low flow Maximum test limit for 0.02 inch orifice low flow $3D $D1 Multiply by 0.01 [kPa] Test value for 0.02 inch orifice high flow (P043F) Refer to pressure A* Minimum test limit for 0.02 inch orifice high flow Maximum test limit for 0.02 inch orifice high flow $3D $D4 Multiply by 0.01 [kPa] Test value for purge VSV stuck closed (P0441) Refer to pressure F* Minimum test limit for purge VSV stuck closed Maximum test limit for purge VSV stuck closed $3D $D5 Multiply by 0.01 [kPa] Test value for purge VSV stuck open (P0441) Refer to pressure E* Minimum test limit for purge VSV stuck open Maximum test limit for purge VSV stuck open $3D $D7 Multiply by 0.01 [kPa] Test value for purge flow (P0441) Refer to pressure G* Minimum test limit for purge flow Maximum test limit for purge flow * Pressures A to G are indicated as shown in the diagram below.

Scheme 514

Scheme 515

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

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

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

Scheme 516

Scheme 517

Scheme 518

1. Key-off monitor This monitor checks for EVAP (Evaporative Emission) system leaks and pump module malfunctions. The monitor starts 5 hours* after the ignition switch is turned off. More than 5 hours are required to allow the fuel to cool down to stabilize the Fuel Tank Pressure (FTP), thus making the EVAP system monitor more accurate. The electric vacuum pump creates negative pressure (vacuum) in the EVAP system, and the pressure is measured. Finally, the ECM monitors for leaks from the EVAP system and malfunctions in both the pump module and purge VSV, based on the EVAP pressure. HINT: *: If the engine coolant temperature is not below 35°C (95°F) 5 hours after the ignition switch is turned off, the monitor check starts 2 hours later. If it is still not below 35°C (95°F) 7 hours after the ignition switch is turned off, the monitor check starts 2.5 hours later.
2. Purge flow monitor The purge flow monitor consists of the two monitors. The 1st monitor is always conducted every time and the 2nd monitor is activated if necessary. The 1st monitor While the engine is running and the purge VSV (Vacuum Switching Valve) is ON (open), the ECM monitors the purge flow by measuring the EVAP pressure change. If negative pressure is not created, the ECM begins the 2nd monitor. The 2nd monitor The vent valve is turned OFF (open) and the EVAP pressure is then measured. If the variation in the pressure is less than 0.5 kPa (3.75 mmHg), the ECM interprets this as the purge VSV being stuck closed, and illuminates the MIL and sets DTC P0441 (2 trip detection logic). Atmospheric pressure check: In order to ensure reliable malfunction detection, the variation between the atmospheric pressures, before and after conduction of the purge flow monitor, is measured by the ECM. Component Operation Canister Contains activated charcoal to absorb EVAP (Evaporative Emissions) generated in fuel tank. Cut-off valve Located in fuel tank. Valve floats and closes when fuel tank is 100% full. Purge VSV (Vacuum Switching Valve) Opens or closes line between canister and intake manifold. ECM uses purge VSV to control EVAP purge flow. In order to discharge EVAP absorbed by canister to intake manifold, ECM opens purge VSV. EVAP discharge volume to intake manifold is controlled by purge VSV duty cycle ratio (current-carrying time). (Open: ON, Close: OFF) Refueling valve Controls EVAP pressure from fuel tank to canister. Valve consists of diaphragm, spring and restrictor (diameter: 0.08 inch). When fuel vapor and pressure inside fuel tank increase, valve opens. While EVAP is purged, valve closes and restrictor prevents a large amount of vacuum from affecting pressure in fuel tank. Valve is opened while refueling. When valve is open, adding fuel into fuel tank is possible. Roll-over valve Located in fuel tank. Valve closes by its own weight when vehicle overturns to prevent fuel from spilling out. Service port Used for connecting vacuum gauge for inspecting EVAP system. Soak timer Built into ECM. To ensure accurate EVAP monitor, measures 5 hours (+/- 15 min.) after ignition switch is turned off. This allows fuel to cool down, stabilizing Fuel Tank Pressure (FTP). When approx. 5 hours elapsed, ECM activates. Canister pump module Consists of (a) to (d) below. Pump module cannot be disassembled. (a) Vent valve Vents and closes EVAP system. When ECM turns valve ON, EVAP system is closed. When ECM turns valve OFF, EVAP system is vented. Negative pressure (vacuum) is created in EVAP system to check for EVAP leaks by closing purge VSV and vent valve (closed), and operating vacuum pump are turned on see scheme 1 (b) Canister pressure sensor Indicates pressure as voltages. ECM supplies regulated 5 V to pressure sensor, and uses feedback from sensor to monitor EVAP system pressure see scheme 2 (c) Vacuum pump Creates negative pressure (vacuum) in EVAP system for leak check. (d) 0.02 inch orifice Has an opening with 0.02 inch diameter. Vacuum is produced through orifice by closing purge VSV, turning off vent valve and operating vacuum pump, to monitor 0.02 inch leak pressure. 0.02 inch leak pressure indicates a small leak of EVAP.

1. CHECK MIL Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch on (IG). OK MIL lights up. NG --> See step 2 OK --> See step 12
2. CHECK CONNECTION BETWEEN TECHSTREAM AND ECM Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Check the communication between the tester and ECM. Result Result Proceed to Communication is possible A Communication is not possible B A --> See step 12 B: Go to next step
3. CHECK THROTTLE BODY (CHECK MIL ILLUMINATED) Disconnect the throttle body connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the throttle body connector. A --> See step 13 B: Go to next step
4. CHECK ACCELERATOR PEDAL ROD (CHECK MIL ILLUMINATED) Disconnect the accelerator pedal position sensor connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the accelerator pedal position sensor connector. A --> See step 14 B: Go to next step
5. CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 1 connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 1 connector. A --> See step 15 B: Go to next step
6. CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 1 connector. A --> See step 16 B: Go to next step
7. CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 2 connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 2 connector. A --> See step 17 B: Go to next step
8. CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 2 connector. A --> See step 18 B: Go to next step
9. CHECK CHARCOAL CANISTER ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the canister pump module connector. Turn the ignition switch on (IG). Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the canister pump module connector. A --> See step 19 B: Go to next step
10. CHECK HARNESS AND CONNECTOR Disconnect the throttle body connector. Disconnect the accelerator pedal position sensor connector. Disconnect the VVT sensor for intake camshaft bank 1 connector. Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Disconnect the VVT sensor for intake camshaft bank 2 connector. Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Disconnect the canister pump module connector. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for short) Tester Connections Condition Specified Conditions B51-15 (VCV1) - Body ground Always 10 kohms or higher D60-4 (VCPA) - Body ground Always 10 kohms or higher D60-2 (VCP2) - Body ground Always 10 kohms or higher B49-13 (VCTA) - Body ground Always 10 kohms or higher Reconnect the ECM connectors. Reconnect the canister pump module connector. Reconnect the VVT sensor for exhaust camshaft bank 2 connector. Reconnect the VVT sensor for intake camshaft bank 2 connector. Reconnect the VVT sensor for exhaust camshaft bank 1 connector. Reconnect the VVT sensor for intake camshaft bank 1 connector. Reconnect the accelerator pedal position sensor connector. Reconnect the throttle body connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
11. REPLACE ECM. Refer to «COMPONENTS»(ref-422482-S29849271832011092600000)
12. GO TO MIL CIRCUIT. Refer to «MIL Circuit»(ref-422478-S33957167712011092600000)
13. REPLACE THROTTLE BODY. Refer to «COMPONENTS»(ref-422482-S07398144772011092600000)
14. REPLACE ACCELERATOR PEDAL ROD. Refer to «COMPONENTS»(ref-422482-S01651320232011092600000)
15. REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 1. Refer to «COMPONENTS»(ref-422482-S05906177182011092600000)
16. REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1. Refer to «COMPONENTS»(ref-422482-S05906177182011092600000)
17. REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 2. Refer to «COMPONENTS»(ref-422482-S05906177182011092600000)
18. REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2. Refer to «COMPONENTS»(ref-422482-S05906177182011092600000)
19. REPLACE CHARCOAL CANISTER ASSEMBLY. Refer to «COMPONENTS»(ref-422447-S01535335902011092600000)

1. CHECK DTC OUTPUT Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: System Select / Health Check. Check DTCs. RESULT Result Proceed to No DTC output A DTC output B B --> See step 11 A: Go to next step
2. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH AND ST1) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch and ST1. Check the Data List indication when the brake pedal is depressed and released. OK Techstream Display Condition Specified Condition Stop Light Switch Brake pedal released OFF Brake pedal depressed ON ST1 Brake pedal released OFF Brake pedal depressed ON NG --> See step 10 OK: Go to next step
3. INSPECT BRAKE PEDAL Inspect and adjust the brake pedal, refer to «ADJUSTMENT»(ref-422449-S42569348042011092600000) . HINT: If the stop light switch turns ON too late, the start of brake override system control may be delayed; if it turns ON too soon, brake override system control may begin too early, so conduct inspection of the brake pedal and stop light switch assembly. NG --> See step 9 OK: Go to next step
4. READ VALUE USING TECHSTREAM (ACCELERATOR PEDAL POSITION SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %. Read the value displayed on the Techstream. OK Techstream Display Condition Specified Condition Accel Sens. No. 1 Volt % Accelerator Pedal Released --> Depressed --> Released Values smoothly change following accelerator pedal operation Accel Sens. No. 2 Volt % HINT: For numerical values of Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %, refer to the Data List, refer to «DATA LIST / ACTIVE TEST»(ref-422300-S16355129752011092600000) . NG --> See step 8 OK: Go to next step
5. READ VALUE USING TECHSTREAM (VEHICLE SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Start the engine. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed. Read the value displayed on the Techstream. Standard Techstream Display Condition Specified Condition Vehicle Speed Vehicle stopped, engine running 0 km/h (0 mph) Vehicle running at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) No large fluctuations when driving at a constant speed WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test. NG --> See step 7 OK: Go to next step
6. READ VALUE USING TECHSTREAM (FR, FL, RR, RL WHEEL SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Start the engine. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed. Read the value displayed on the Techstream. Standard Techstream Display Condition Specified Condition FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed Vehicle stopped, engine running 0 km/h (0 mph) Vehicle running at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) No large fluctuations when driving at a constant speed WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test. NG --> INSPECT FRONT OR REAR SPEED SENSOR OK --> END
7. GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT). Refer to «Speed Signal Circuit»(ref-422465-S42293094162011092600000)
8. REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY. Refer to «REMOVAL»(ref-422482-S38380357702011092600000)
9. REPAIR OR REPLACE BRAKE PEDAL. Refer to «REMOVAL»(ref-422449-S18721356632011092600000)
10. INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to «INSPECTION»(ref-422466-S10978528592011092600000)
11. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-422300-S11996203412011092600000)

1. CHECK THAT MIL IS ILLUMINATED Turn the ignition switch on (IG). Check the illumination of the MIL. Result Result Proceed to MIL remains illuminated (Even after ignition switch is turned on (IG) and several seconds have passed, MIL still remains illuminated) A MIL remains off (Does not illuminate at all) B B --> See step 5 A: Go to next step
2. CHECK WHETHER MIL TURNS OFF Connect the Techstream to the DLC3. Turn the ignition switch on (IG) and turn the tester on. Select the following menu items: Powertrain / Engine and ECT / Trouble Code. Check if any DTCs have been stored. Note down any DTCs. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-422300-S24344107222011092600000) . Check if the MIL goes off. Standard MIL goes off. NG --> See step 3 OK --> REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
3. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the ECM connector. Turn the ignition switch on (IG). Check that the MIL is not illuminated. OK MIL is not illuminated. Reconnect the ECM connector. NG --> See step 4 OK --> See step 8
4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the ECM connector. Disconnect the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for Open) Tester Connection Condition Specified Condition D61-13 (W) - E1-10 (CHK) Always Below 1 ohms Standard resistance (Check for Short) Tester Connection Condition Specified Condition D61-13 (W) or E1-10 (CHK) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the combination meter connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM) OK --> See step 9
5. CHECK THAT ENGINE STARTS Turn the ignition switch on (IG). Start the engine. Result Result Proceed to Engine starts A Engine does not start* B HINT: *: The tester cannot communicate with the ECM. B --> See step 10 A: Go to next step
6. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BODY GROUND) Disconnect the ECM connector. Turn the ignition switch on (IG). Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Condition Specified Condition D61-13 (W) - Body ground Ignition switch on (IG) 11 to 14 V Reconnect the ECM connector. NG --> See step 7 OK --> See step 8
7. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the ECM connector. Disconnect the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for short) Tester Connection Condition Specified Condition D61-13 (W) - E1-10 (CHK) Always Below 1 ohms Standard resistance (Check for Short) Tester Connection Condition Specified Condition D61-13 (W) or E1-10 (CHK) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the combination meter connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM) OK --> See step 9
8. REPLACE ECM. Refer to «COMPONENTS»(ref-422482-S29849271832011092600000)
9. REPLACE COMBINATION METER ASSEMBLY. Refer to «COMPONENTS»(ref-422472-S42028853922011092600000)
10. GO TO VC OUTPUT CIRCUIT. Refer to «VC Output Circuit»(ref-422478-S31354700692011092600000)