Sfi System: Other Scion xB I

DEFINITION OF TERMS

DEFINITION OF TERMS DESCRIPTION

PART AND SYSTEM NAME LIST

This reference list indicates the part names used in this manual along with their definitions.

PART AND SYSTEM NAME LIST

Scheme 307

CHECK FOR INTERMITTENT PROBLEMS

HINT

Hand-held tester only

Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with a hand-held tester when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.

1. Clear DTC (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ).
2. Switch the ECM from normal mode to check mode using a hand-held tester (see «CHECK MODE PROCEDURE»(ref-224516-S30770394862006031000000) ).
3. Perform a simulation test (SEE «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-224507-S22289556672006031000000) ).
4. Check and wiggle the harness(es), connector(s) and terminal(s) (SEE «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-224507-S11067076722006031000000) ).

REGISTRATION

Note. The Vehicle Identification Number (VIN) must be input into the replacement ECM.

HINT

The VIN is in the form of a 17-digit alphanumeric vehicle identification number. A hand-held tester is required to resister the VIN.

Scheme 308

Scheme 309

Scheme 310

1. DESCRIPTION This registration section consists of three parts, Input Instructions, Read VIN and Write VIN. Input Instructions: Explains the general VIN input instructions using a hand-held tester. Read VIN: Explains the VIN reading process in a flowchart. This process allows the VIN stored in the ECM to be read, in order to confirm that the two VINs, provided with the vehicle and stored in the vehicle's ECM, are the same. Write VIN: Explains the VIN writing process in a flowchart. This process allows the VIN to be input into the ECM. If the ECM is changed, or the VIN and VIN do not match, the VIN can be registered, or over-written in the ECM by following this procedure.
2. INPUT INSTRUCTIONS Hand-held tester The arrow buttons (UP, DOWN, RIGHT and LEFT) and numerical buttons (0 to 9) are used, in order to input the VIN. Cursor Operation To move the cursor around the tester screen, press the RIGHT and LEFT buttons. Alphabetical Character Input Press the UP and DOWN buttons to select the desired alphabetical character. After selection, the cursor should move. Numeric Character Input Press the numerical button corresponding to the number that you want to input. After input, the cursor should move. HINT: Numerical characters can be selected by using the UP and DOWN buttons. Correction When correcting the input character(s), put the cursor onto the character using the RIGHT or LEFT buttons. Select or input the correct character using the UP/DOWN buttons, or the numerical buttons. Finishing Input Operation Make sure that the input VIN matches the vehicle VIN after input. Press the ENTER button on the tester.
3. READ VIN (Vehicle Identification Number) Read VIN using a hand-held tester. READ
4. WRITE VIN Write VIN using the hand-held tester. Write

LIST OF DISABLE A MONITOR

HINT

The table below shows the ECM monitoring status for the components listed at the top of the table when the DTCs on the left of the table are set.

"X" indicates that when the DTC on the left is stored, detection of the DTC in the upper column is not performed.

Scheme 311

Scheme 312

Scheme 313

Scheme 314

Scheme 315

Scheme 316

Scheme 317

Scheme 318

Scheme 319

1. O2S Test Result Description The O2S Test Result is part of the monitoring for Heated Oxygen (HO2) sensor malfunctions. The various states (Test Items) of the HO2 sensor are monitored by the ECM. The Test Item values (Test Values) can be read using a hand-held tester or OBD II scan tool. A Test Value is the latest data snapshot after the vehicle is driven to run the monitor. Therefore, the Test Value is not dynamic data. If a Test Value is outside the standard range, this indicates that the HO2 sensor is malfunctioning. If a Test Value is on the borderline of the standard level, any malfunctions may be concealed in the HO2 sensor. Test Values are cleared when the ignition switch is turned to OFF. Example O2S TEST RESULT TestID Test Item Description Unit Conversion Unit Standard Value $81 Time $81 Percentage of monitoring time when HO2S voltage was below 0.05 V Multiply by 0.3906 % Within 60 % Test ID: Code applied to each Test Item Test Item: State to be monitored in the test Description: Monitoring method Unit Conversion: Conversion factor used to calculate the Test Value displayed on a hand-held tester Unit: Unit applied to a Test Value Standard Value: The standard range or level used to judge whether or not the HO2 sensor is normal HINT: Specifics of each Test Item, Description, Unit Conversion and Standard Value are descried in the paragraph titled "O2S TEST RESULT" in each DTC section relating to the HO2 sensor, such as P0130, P0133 and P0136. The O2S Test Result is not applicable to the A/F (Air-Fuel Ratio) sensor and the HO2 sensor heater. The Monitor Result is used for these components tests. For more information about the tests, refer to Checking Monitor Status on «CHECKING MONITOR STATUS»(ref-224516-S07204017502006031000000).
2. Test Procedure CAUTION: Strictly observe posted speed limits, traffic laws, and road conditions when conducting the drive pattern. Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. Clear DTCs (where set) (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Drive the vehicle to run the HO2 sensor monitor, in accordance with the applicable Drive Pattern described in the Readiness Monitor Drive Pattern section (see «READINESS MONITOR DRIVE PATTERN»(ref-224516-S07241703912006031000000) ). After conducting the drive pattern, select the following menu items on the tester: DIAGNOSIS / CARB OBD II / O2S TEST RESULT. HINT: This test is not applicable to the A/F sensor. Therefore, even when BANK 1 - SENSOR 1 or BANK 2 - SENSOR 1 is selected on the tester, "NO PARAMETER TO DISPLAY" is displayed by the tester. All HO2 sensors are listed on the tester screen. Select the desired HO2 sensor from the list and press the ENTER button (a screen such as that (Scheme 318)appears). Check the Test Value (the Test Item value). For the scan tool, refer to the instruction manual. NOTE: Until the HO2 sensor monitor runs to completion, when it fails to complete or when the ignition switch is turned to OFF, the tester screen displays the upper and lower viewable limit values for the monitor (for example, voltages: 0 V and 1.275 V, seconds: 0 and 10.2, and Test Value: 0 and 255).
3. Reading Procedure HINT: The values shown in «O2S TEST RESULT»(ref-224516-S37377911872006031000000) are examples only. Check the Test Value in the Test Item line. Use the Unit Conversion (conversion factor value) in the O2S Test Result table to calculate the Test Value. Test Value: 17 x Unit Conversion: 0.3906 = Calculated Value and Unit: 6.6% Check the calculated Test Value by referring to the Standard Values in «O2S TEST RESULT»(ref-224516-S37377911872006031000000). HINT: If a Test Value is within the Standard Value, this indicates that the Test Item is normal. If a Test Value is on the borderline of the Standard Value, the Test Item may have a problem or malfunction. O2S TEST RESULT Table O2S TEST RESULT TestID Test Item Description Unit Conversion Unit Standard Value $81 Time $81 Percentage of monitoring time when HO2S voltage was below 0.05 V Multiply by 0.3906 % Within 60 %

Scheme 320

Scheme 321

Scheme 322

1. Monitor Result Description The Monitor Result is part of the monitoring for malfunctions in emission related components such as the thermostat, catalytic converter, and evaporative emission system. The various states (Test Items) of the components are monitored by the ECM. The Test Item values (Test Values) can be read using a hand-held tester or OBD II scan tool. A Test Value is the latest data snapshot after the vehicle is driven to run the monitor. Therefore, the Test Value is not dynamic data. If a Test Value is outside the Test Limit, this indicates that the Test Item is malfunctioning. If a Test Value is on the borderline of the Test Limit, any malfunctions may be concealed in the Test Item. Test values are cleared when the ignition switch is turned to OFF. Example MONITOR RESULT DESCRIPTION Test ID Test Item Test Value Unit Conversion Unit Test Limit $08 Thermostat Engine coolant temperature (ECT) Multiply by 0.625 and minus 40 °C Malfunction criteria for thermostat Test ID: Code applied to each Test Item Test Item: to be monitored in the test Test Value: Value to be monitored Unit Conversion: Conversion factor used to calculate the Test Value displayed on a hand-held tester Unit: Unit applied to a Test Value Test Limit: The malfunction threshold of Test Item HINT: Specifics of each Test Item, Description, Unit Conversion and Standard Value are descried in the paragraph titled "MONITOR RESULT" in each DTC section relating to the emission related components. The Monitor Result is not applicable to the Heated Oxygen (HO2) sensor. For more information about the test, refer to O2S Test Result on «O2S TEST RESULT»(ref-224516-S35339577032006031000000) .
2. Test Procedure CAUTION: Strictly observe posted speed limits, traffic laws, and road conditions when conducting the drive patterns. Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. Clear DTCs (where set)(see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Drive the vehicle to run the monitor, in accordance with the applicable Drive Pattern described in the Readiness Monitor Drive Pattern section (see «READINESS MONITOR DRIVE PATTERN»(ref-224516-S07241703912006031000000) ). After conducting the drive pattern, select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / MONITOR INFO / MONITOR RESULT. The Test Items appear at the beginning of each line followed by INCMP, PASS or FAIL. INCMP: Stands for incomplete. The judgment process has not yet been finished. PASS: No malfunction has been detected. FAIL: A malfunction has been detected. Select the Test Item (Label) from the list and press the ENTER button. You will see the following screen: VAL: Test Value LMT: Test Limit TLT: Test Limit Type (Either 0 or 1 is displayed) HINT: Pass result: TLT = 0 indicates that VAL smaller than LMT, and TLT = 1 indicates that VAL larger than LMT. Fail result: TLT = 0 indicates that VAL larger than LMT, and TLT = 1 indicates that VAL smaller than LMT. The Test Value (VAL) is recorded after the monitor is completed. When the Test Value is on the borderline of the Test Limit, the Test Item may have a problem or malfunction. For the scan tool, refer to the instruction manual . If necessary, press the HELP to see the information of the TLT. NOTE: In rare cases, the test may be passed even with a DTC set and the MIL illuminated. The monitor might have detected a malfunction on a previous trip, however the malfunction was not detected on the most recent trip. This indicates that an intermittent problem may be cause of the DTC.

PURPOSE OF READINESS TESTS

1. The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities with DTCs (Diagnostic Trouble Codes). Since various components need to be monitored during different driving conditions, the OBD II system is designed to run separate monitoring programs called Readiness Monitors.
2. The hand-held tester's software must be version 9.0 or newer to view the Readiness Monitor status. To view the status, select the following menu items: DIAGNOSIS / ENHANCED OBD II / MONITOR INFO / MONITOR STATUS.
3. When the Readiness Monitor status reads COMPL (complete), the necessary conditions have been met for running the performance tests for that Readiness Monitor.
4. A generic OBD II scan tool can also be used to view the Readiness Monitor status.

HINT

Many state Inspection and Maintenance (I/M) programs require a vehicle's Readiness Monitor status to show COMPL before beginning emission tests.

The Readiness Monitor will be reset to INCMPL (incomplete) if

1. The ECM has lost battery power or blown a fuse.
2. DTCs have been cleared.
3. The conditions for running the Readiness Monitor have not been met.

If the Readiness Monitor status shows INCMPL, follow the appropriate Readiness Monitor Drive Pattern to change the status to COMPL.

Note. These drive patterns represent the fastest method of satisfying all conditions necessary to achieve complete status for each specific Readiness Monitor.

In the event of a drive pattern being interrupted (possibly due to factors such as traffic conditions), the drive pattern can be resumed. In most cases, the Readiness Monitor will still achieve complete status upon completion of the drive pattern.

To ensure completion of the Readiness Monitors, avoid sudden changes in vehicle load and speed (driving up and down hills and/or sudden acceleration).

Contents

SECTION TITLES

Scheme 323

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Scheme 326

1. CATALYST MONITOR (Front Heated Oxygen Sensor Type) Preconditions The monitor will not run unless: MIL is OFF. Engine Coolant Temperature (ECT) is 75°C (167°F) or higher. Intake Air Temperature (IAT) is -10°C (14°F) or higher. NOTE: The readiness test can be completed in cold ambient conditions (less than -10°C [14°F]), if the drive pattern is repeated a second time after switching the ignition off. Drive Pattern Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON Turn the tester or scan tool ON. Clear DTCs (where set) (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Start the engine, and warm it up until the ECT reaches 75°C (167°F) or higher. Drive the vehicle at between 40 mph and 55 mph (64 km/h and 88 km/h) for approximately 3 minutes. NOTE: Drive with smooth throttle operation and avoid sudden acceleration. If the IAT was less than 10°C (50°F) when starting the engine, drive the vehicle at between 40 mph and 55 mph (64 km/h and 88 km/h) for approximately 3 additional minutes. Drive the vehicle at between 35 mph and 45 mph (56 km/h and 72 km/h) for approximately 7 minutes. NOTE: Drive with smooth throttle operation and avoid sudden deceleration that causes the throttle to close fully. Monitor Status Check the Readiness Monitor status displayed on the tester or scan tool. If the status does not switch to COMPL (complete), make sure that the preconditions have been met, and turn the ignition switch to OFF. Then, repeat steps ( 6 ) and ( 7 ) in Drive Pattern above.
2. EVAP SYSTEM MONITOR (VACUUM PRESSURE TYPE) NOTE: A cold soak must be performed prior to conducting the drive pattern to complete the internal pressure readiness monitor. Cold Soak Preconditions The MIL is off. Fuel tank is approximately 1/2 to 3/4 full. Altitude is 8,000 ft (2,400 m) or less. Cold Soak Let the vehicle cold soak for 8 hours or until the difference between the Intake Air Temperature (IAT) and the Engine Coolant Temperature (ECT) reaches less than 7°C (13°F). EVAP System Monitor Preconditions The monitor will not run unless: The MIL is off. Fuel tank is approximately 1/2 to 3/4 full. Altitude is 8,000 ft (2,400 m) or less. Cold Soak has been completed. 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). The difference between ECT and IAT at engine start is between -7°C and 11 °C (19°F and 52°F) (the difference is calculated by deducting the ECT from the IAT). HINT: Example 1 The ECT is 24°C (75°F) and the IAT is 16°C (60°F) when starting the engine 16°C (60°F) - 24°C (75°F) = -8°C (-15°F). The monitor will not run because the difference between the temperatures is outside the precondition range of -7°C and 11°C (19°F and 52°F). Example 2 The ECT is 21°C (70°F) and the IAT is 20°C (68°F) when starting the engine. 20°C (68°F) - 21°C (70°F) = -1°C (-2°F). The monitor will not run because the difference between the temperatures is within the precondition range of -7°C and 11°C (19°F and 52°F). NOTE: The readiness test can be completed in cold ambient conditions (less than -10°C [14°F]), and/or high altitudes (more than 8,000 ft [2,400 m]),if the drive pattern is repeated a second time after switching the ignition off. Drive Pattern Release the pressure from the fuel tank by removing and reinstalling the fuel tank cap. Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON Turn the tester or scan tool ON. Clear DTCs (where set) (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Start the engine and warm it up until the ECT reaches 75°C (167°F) or higher. Run the engine at 3,000 rpm for approximately 10 seconds. Allow the engine to idle for 15 to 50 minutes with A/C ON (to create a slight electrical load). NOTE: If the vehicle is not equipped with A/C, follow the operation below in order to put a slight load on the engine: Securely apply the parking brake. Use wheel chocks to secure the wheels. Move the gear selector lever to the D position, and allow the engine to idle for 15 to 50 minutes. CAUTION: Exercise extreme care and take precautions during the operation. Failure to do so may result in the vehicle unexpectedly rolling away. Monitor Status Check the Readiness Monitor status displayed on the tester or scan tool. If the status does not switch to COMPL (complete), make sure that the preconditions have been met, and then drive the vehicle at between 43 mph and 74 mph (70 km/h and 120 km/h) for approximately 50 minutes (keep the vehicle speed as constant as possible).
3. Heated Oxygen (HO2) Sensor Monitors (Front and Rear HO2 Sensor Type) Preconditions The monitor will not run unless: 2 minutes or more have elapsed since the engine was started. The Engine Coolant Temperature (ECT) is 75°C (167°F) or more. Cumulative driving time at a vehicle speed of 30 mph (48 km/h) or more exceeds 6 minutes. Air-fuel ratio feedback control is performed. Fuel-cut control is performed for 8 seconds or more (for the Rear HO2 Sensor Monitor) Drive Pattern for Front and Rear HO2 Sensors Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. Clear DTCs (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Start the engine, and warm it up until the ECT reaches 75°C (167°F) or higher. Drive the vehicle at 30 mph (48 km/h) or more for at least 40 seconds. Allow the engine to idle for 20 seconds or more. Repeat steps (6) and (7) at least 8 times in one driving cycle. Change the transmission to 2nd gear. Accelerate the vehicle to 30 mph (48 km/h) or more by depressing the accelerator pedal for at least 10 seconds. Soon after performing step (10) above, release the accelerator pedal for at least 10 seconds without depressing the brake pedal, in order to execute fuel-cut control. Allow the vehicle to decelerate until the vehicle speed declines to less than 6 mph (10 km/h). Repeat steps from (10) through (12) above at least twice in one driving cycle. Monitor Status Check the Readiness Monitor status displayed on the tester or scan tool. If the status does not switch to COMPL (complete), make sure that the preconditions have been met, and then perform steps from ( 5 ) through ( 13 ) in Drive Pattern above.
4. Heated Oxygen (HO2) Sensor Heater Monitors (Front and Rear HO2 Sensor Type) Preconditions The monitor will not run unless: The MIL is OFF. Drive Pattern Connect a hand-held tester or the OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. Clear DTCs (where set) (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Start the engine. Allow the engine to idle for 10 minutes or more. Drive the vehicle at 25 mph (40 km/h) or more for at least 2 minutes. Monitor Status Check the Readiness Monitor status displayed on the tester or scan tool. If the status does not switch to COMPL (complete), restart the engine, make sure the preconditions have been met, and repeat steps ( 6 ) and ( 7 ) described in the Drive Pattern above.

CHECK MODE PROCEDURE

HINT

Hand-held tester only

Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode.

Note. All the stored DTCs and freeze frame data are erased if: 1) the ECM is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from ON to ACC or OFF while in check mode. Before changing modes, always check and make a note of any DTCs and freeze frame data.

Scheme 327

Scheme 328

1. CHECK MODE PROCEDURE (Using a hand-held tester) Check and ensure the following conditions: Battery voltage 11 V or more Throttle valve fully closed Transmission in the P or N positions A/C switched OFF Turn the ignition switch to OFF. Connect a hand-held tester to the DLC3. Turn the ignition switch to ON. Turn the tester ON. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / CHECK MODE. Switch the ECM from normal mode to check mode. Make sure the MIL flashes (Scheme 328) Start the engine. Make sure the MIL turns off. Simulate the conditions of the malfunction described by the customer. Check DTCs and freeze frame data using the tester.

FAIL-SAFE CHART

If any of the following DTCs are set, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily.

FAIL-SAFE DEACTIVATION CONDITIONS

Scheme 329

Scheme 330

Scheme 331

Scheme 332

1. DATA LIST HINT: By reading the DATA LIST displayed on a hand-held tester or OBD II scan tool, you can check values, including those of the switches, sensors, and actuators, without removing any parts. Reading the DATA LIST as the first step of troubleshooting is one method of shortening diagnostic time. NOTE: In the table below, the values listed under Normal Conditions are for reference only. Do not depend solely on these values when determining whether or not a part is faulty. Warm up the engine. Turn the ignition switch to OFF. Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. If using a hand-held tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST. If using an OBD II scan tool, refer to the instruction manual. Check the values by referring to (Scheme 329), (Scheme 330) and (Scheme 331).
2. ACTIVE TEST HINT: Performing an ACTIVE TEST enables components including the relays, VSV (Vacuum Switching Valve), and actuators, to be operated without removing any parts. The ACTIVE TEST can be performed with a hand-held tester. Performing an ACTIVE TEST as the first step of troubleshooting is one method of shortening diagnostic time. DATA LIST can be displayed during ACTIVE TESTs. Connect a hand-held tester to the DLC3. Turn the ignition switch to ON. Turn the tester ON. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST. Perform the ACTIVE TEST by referring to (Scheme 332).

MONITOR STRATEGY

MONITOR STRATEGY REFERENCE

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

COMPONENT OPERATING RANGE

COMPONENT OPERATING RANGE

Scheme 333

MONITOR STRATEGY REFERENCE

TYPICAL ENABLING CONDITIONS

P0011 and P0012 (Advance/retard malfunction)

P0011 AND P0012 (ADVANCE/RETARD MALFUNCTION)

P0011 and P0012 (Advance/retard malfunction)

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

If the difference between the target and actual camshaft timings is greater than the specified value, the ECM operates the VVT (Variable Valve Timing) actuator.

Then, the ECM monitors the camshaft timing change for 5 seconds.

MONITOR STRATEGY REFERENCE

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

MONITOR STRATEGY REFERENCE

P0031 and P0037

TYPICAL ENABLING CONDITIONS

P0032 and P0038

TYPICAL ENABLING CONDITIONS

P0031 and P0037

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

P0032 and P0038

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

COMPONENT OPERATING RANGE

MONITOR RESULT

Refer to CHECKING MONITOR STATUS .

MONITOR RESULT REFERENCE

MONITOR STRATEGY REFERENCE

TYPICAL ENABLING CONDITIONS

P0100

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

P0102

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

P0103

TYPICAL MALFUNCTION THRESHOLDS REFERENCE

COMPONENT OPERATING RANGE

Scheme 334

MONITOR STRATEGY REFERENCE

TYPICAL ENABLING CONDITIONS

MAF Meter Rationality (High Voltage)

MAF METER RATIONALITY (HIGH VOLTAGE)

MAF Meter Rationality (Low Voltage)

MAF METER RATIONALITY (LOW VOLTAGE)

MAF Meter Rationality (High Voltage)

MAF METER RATIONALITY (HIGH VOLTAGE)

MAF Meter Rationality (Low Voltage)

MAF METER RATIONALITY (LOW VOLTAGE)

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

P0110

TYPICAL MALFUNCTION THRESHOLDS (P0110)

P0112

TYPICAL MALFUNCTION THRESHOLDS (P0112)

P0113

TYPICAL MALFUNCTION THRESHOLDS (P0113)

COMPONENT OPERATING RANGE

Scheme 335

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

P0115

TYPICAL MALFUNCTION THRESHOLDS (P0115)

P0117

TYPICAL MALFUNCTION THRESHOLDS (P0117)

P0118

TYPICAL MALFUNCTION THRESHOLDS (P0118)

COMPONENT OPERATING RANGE SPECIFICATION

Scheme 336

MONITOR STRATEGY

Engine Coolant Temperature Sensor Output Stuck at Low Engine Coolant Temperature

ENGINE COOLANT TEMPERATURE SENSOR OUTPUT STUCK AT LOW ENGINE COOLANT TEMPERATURE

Engine Coolant Temperature Sensor Output Stuck at High Engine Coolant Temperature

ENGINE COOLANT TEMPERATURE SENSOR OUTPUT STUCK AT HIGH ENGINE COOLANT TEMPERATURE

Engine Coolant Temperature Sensor Output Stuck at Low Engine Coolant Temperature

ENGINE COOLANT TEMPERATURE SENSOR OUTPUT STUCK AT LOW ENGINE COOLANT TEMPERATURE

Engine Coolant Temperature Sensor Output Stuck at High Engine Coolant Temperature

ENGINE COOLANT TEMPERATURE SENSOR OUTPUT STUCK AT HIGH ENGINE COOLANT TEMPERATURE

COMPONENT OPERATING RANGE

MONITOR STRATEGY

TYPICAL ENABLING CONDITION

TYPICAL ENABLING CONDITION

P0120

TYPICAL MALFUNCTION THRESHOLDS (P0120)

P0122

TYPICAL MALFUNCTION THRESHOLDS (P0122)

P0123

TYPICAL MALFUNCTION THRESHOLDS (P0123)

COMPONENT OPERATING RANGE

Scheme 337

MONITOR STRATEGY

TYPICAL ENABLING CONDITION

Stop-and-go is defined as follows

Stop indicates a vehicle speed of 0 mph (0 km/h). Go indicates a vehicle speed of 18.6 mph (30 km/h).

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

MONITOR RESULT

If the Test Value is less than Test Limit when the engine is warmed up, the ECM interprets this as a malfunction.

Refer to CHECKING MONITOR STATUS for detailed information on CHECKING MONITOR STATUS.

MONITOR STRATEGY

TYPICAL ENABLING CONDITION

Heated oxygen sensor voltage (P0130)

HEATED OXYGEN SENSOR VOLTAGE (P0130)

Heated oxygen sensor voltage stuck Lean (P2195)

HEATED OXYGEN SENSOR VOLTAGE STUCK LEAN (P2195)

Heated oxygen sensor voltage stuck Rich (P2196)

HEATED OXYGEN SENSOR VOLTAGE STUCK RICH (P2196)

COMPONENT OPERATING RANGE

MONITOR STRATEGY

All

TYPICAL ENABLING CONDITION

Heated oxygen sensor (sensor 1) slow slope

HEATED OXYGEN SENSOR (SENSOR 1) SLOW SLOPE

Heated oxygen sensor (sensor 1) frequency

HEATED OXYGEN SENSOR (SENSOR 1) FREQUENCY

Heated oxygen sensor (sensor 1) slow slope

HEATED OXYGEN SENSOR (SENSOR 1) SLOW SLOPE

Heated oxygen sensor (sensor 1) frequency

HEATED OXYGEN SENSOR (SENSOR 1) FREQUENCY

COMPONENT OPERATING RANGE

TYPICAL ENARLINR CONDITION

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

MONITOR STRATEGY

All

TYPICAL ENABLING CONDITIONS

P0136 HO2 sensor voltage

P0136 HO2 SENSOR VOLTAGE REFERENCE

P0136 HO2 sensor element

P0136 HO2 SENSOR ELEMENT REFERENCE

P0138 HO2 sensor response

P0138 HO2 SENSOR RESPONSE REFERENCE

P0138 HO2 sensor voltage

P0138 HO2 SENSOR VOLTAGE REFERENCE

P0136 HO2 sensor voltage

P0136 HO2 SENSOR VOLTAGE REFERENCE

P0136 HO2 sensor element

P0136 HO2 SENSOR ELEMENT REFERENCE

P0138 HO2 sensor response

P0138 HO2 SENSOR RESPONSE REFERENCE

P0138 HO2 sensor voltage

P0138 HO2 SENSOR VOLTAGE REFERENCE

COMPONENT OPERATING RANGE

CONFIRMATION DRIVING PATTERN

This confirmation driving pattern is used in step 6 of the following diagnostic troubleshooting procedure.

Scheme 338

1. Preconditions The Heated Oxygen (HO2) sensor monitor will not run unless: 2 minutes or more have elapsed since the engine was started. The Engine Coolant Temperature (ETC) is 75°C (167°F) or more. Cumulative driving time at a vehicle speed of 30 mph (48 km/h) or more exceeds 6 minutes. Air-fuel ratio feedback control is performed. Fuel-cut control is performed for 8 seconds or more (for the rear HO2 sensor).
2. Driving Patterns Connect a hand-held tester or OBD II scan tool to the DLC3. Turn the ignition switch to ON. Turn the tester or scan tool ON. Clear DTCs (see «DTC CHECK/CLEAR»(ref-224516-S34313455932006031000000) ). Start the engine and warm it up until the ETC reaches 75°C (167°F) or higher. Drive the vehicle at 30 mph (48 km/h) or more for at least 40 seconds. Allow the engine to idle for 20 seconds or more. Repeat steps ( 6 ) and ( 7 ) described above at least 8 times in one driving cycle. Change the transmission to 2nd gear. Accelerate the vehicle to 30 mph (48 km/h) or more by depressing the accelerator pedal for at least 10 seconds. Soon after performing step (10) above, release the accelerator pedal for at least 10 seconds without depressing the brake pedal, in order to execute fuel-cut control. Allow the vehicle to decelerate to less than 6 mph (10 km/h). Repeat steps from (10) through (12) described above at least twice in one driving cycle.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

Fuel trim Lean

FUEL TRIM LEAN SPECIFICATION

Fuel trim Rich

FUEL TRIM RICH SPECIFICATION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

P0301 to P0304

TYPICAL MALFUNCTION THRESHOLDS (P0301 TO P0304)

Emission-related-misfire

TYPICAL MALFUNCTION THRESHOLDS (EMISSION-RELATED-MISFIRE)

Catalyst-damage-misfire (MIL flashes immediately)

TYPICAL MALFUNCTION THRESHOLDS (EMISSION-RELATED-MISFIRE)

1. Connect a hand-held tester or OBD II scan tool to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the tester or scan tool ON.
4. Record the DTC(s) and freeze frame data.
5. Using the tester, switch the ECM from normal mode to check mode (see «CHECK MODE PROCEDURE»(ref-224516-S30770394862006031000000) ).
6. Read the misfire counts of each cylinder (CYL #1 to #4) with the engine in an idling condition. If any misfire count is displayed, skip the following confirmation driving pattern.
7. Drive the vehicle several times with the conditions, such as engine rpm and engine load, shown in MISFIRE RPM, MISFIRE LOAD in the DATA LIST. HINT: In order to store misfire DTCs, it is necessary to drive the vehicle for the period of time shown in «ENGINE RPM DURATION»(ref-224516-S06483564602006031000000) , with the MISFIRE RPM and MISFIRE LOAD in the DATA LIST. ENGINE RPM DURATION Engine RPM Duration Idling 3.5 minutes or more 1,000 rpm 3 minutes or more 2,000 rpm 1.5 minutes or more 3,000 rpm 1 minute or more
8. If using on OBD II scan tool, follow the operations below in order for DTCs to be set by the ECM. Drive the vehicle several times with the conditions, such as engine rpm and engine load, stored in the freeze frame data. Turn the ignition switch to OFF and then turn it to ON again. Repeat step ( 1 ) described above.
9. Check whether misfires have occurred by checking DTCs and freeze frame data. HINT
10. Record the DTC(s), freeze frame data and misfire counts.
11. Turn the ignition switch to OFF and wait for at least 5 seconds.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

Knock Sensor Rationality P0325

KNOCK SENSOR VOLTAGE SPECIFICATION

Knock Sensor Rationality P0325

KNOCK SENSOR VOLTAGE SPECIFICATION

Knock Sensor Range Check (Chattering) P0325

KNOCK SENSOR VOLTAGE SPECIFICATION

Scheme 339

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

Crankshaft Position Sensor Range Check during Cranking P0335

CRANKSHAFT POSITION SENSOR RANGE REFERENCE

Crankshaft Position Sensor Range Check during Engine Running P0335

CRANKSHAFT POSITION SENSOR RANGE REFERENCE

P0335, P0339

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 340

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

Camshaft Position Sensor Range Check P0340

CAMSHAFT POSITION SENSOR RANGE REFERENCE

Camshaft Position/Crankshaft Position Misalignment P0340

CAMSHAFT POSITION/CRANKSHAFT POSITION MISALIGNMENT

P0341

CAMSHAFT POSITION/CRANKSHAFT POSITION MISALIGNMENT

Camshaft Position Sensor Range Check P0340

CMP SENSOR SIGNAL

Camshaft Position/Crankshaft Position Misalignment P0340

CAMSHAFT POSITION/CRANKSHAFT POSITION MISALIGNMENT

Camshaft Position Sensor Malfunction P0341

CAMSHAFT POSITION SENSOR MALFUNCTION

COMPONENT OPERATING RANGE

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 341

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

Refer to CHECKING MONITOR STATUS for detailed information on Checking Monitor Status.

TEST ITEMS REFERENCE

1. TWC denotes Three-Way Catalytic Converter.
2. Sensor 1 denotes the front Heated Oxygen (HO2) sensor, in front of the TWC. Sensor 2 denotes the rear HO2 sensor, behind the TWC.
3. Refer to «CHECKING MONITOR STATUS»(ref-224516-S07204017502006031000000) for detailed information on Checking Monitor Status.

Scheme 342

Scheme 343

1. If using a hand-held tester: Connect the hand-held tester to the DLC3.
2. If not using a hand-held tester: Connect oscilloscope tester probes to terminals OXL1 (front Heated Oxygen [HO2] sensor: Sensor 1), OXL2 (rear HO2 sensor: Sensor 2) and E1 of the ECM connector.
3. Start the engine.
4. Warm up the engine with all the accessories switched OFF until the engine coolant temperature stabilizes.
5. Run the engine at an engine speed of between 2,500 rpm and 3,000 rpm for approximately 3 minutes.
6. Check that the waveform of the OXL2 (rear HO2 sensor) signal. HINT: If there is still a malfunction in the system, the waveform of OX1B may become similar to the OXL1 waveform shown in the diagram on the left.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

MONITOR RESULT (MODE 06 DATA)

MONITOR RESULT REFERENCE

Refer to CHECKING MONITOR STATUS for detailed information on CHECKING MONITOR STATUS.

Scheme 344

TYPICAL MALFUNCTION THRESHOLDS

Scheme 345

Refer to CHECKING MONITOR STATUS for detailed information on CHECKING MONITOR STATUS.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS (M/T)

TYPICAL ENABLING CONDITIONS (A/T)

TYPICAL MALFUNCTION THRESHOLDS

Scheme 346

MONITOR STRATEGY

TYPICAL ENABLING CONDITION

P0505 IAC functional check

VOLTAGE REFERENCE

P0505 IAC range check

VOLTAGE REFERENCE

P0511

VOLTAGE REFERENCE

P0505 IAC functional check

TYPICAL MALFUNCTION THRESHOLDS

P0505 IAC range check

TYPICAL MALFUNCTION THRESHOLDS

P0511

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 347

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

P0550

TYPICAL MALFUNCTION THRESHOLDS

P0552

TYPICAL MALFUNCTION THRESHOLDS

P0553

TYPICAL MALFUNCTION THRESHOLDS

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

Scheme 348

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

Scheme 349