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Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC): Other Subaru Baja I

Testing & Diagnostics 169 illustrations ~13003 words

GENERAL DRIVING CYCLE

  1. Always perform the diagnosis after idling when the engine speed is more than 1500 rpm.
  2. Always perform the diagnosis after warming up the engine when the engine speed is more than 500 rpm.

MALFUNCTION INDICATOR LIGHT CLEAR CONDITION

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

FAIL SAFE

  1. Ignition timing whole learning compensation: Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: Most timing retard learning is not complete or most timing retard learning completion is not experienced.
  4. ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. Make the OCV driving Duty to be the given value (9.36%).

Perform diagnosis continuously in 60 seconds after starting engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
  2. Correction when re-starting at high temperature: Normally minimum value 0.3 0
  3. Purge control: Not allowed to purge

Always perform diagnosis continuously.

Scheme 2400

Scheme 2400: DIAGNOSTIC METHOD

Scheme 2401

Scheme 2401
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 1 second (8 cycles).
  2. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when all the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor activation judgment: Front oxygen (A/F) sensor full activation is not complete, or front oxygen (A/F) sensor half activation is not complete.
  2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
  3. Compensation when starting the engine at high temperature: Make the MIN value to be 0 from 0.3 normally.
  4. Purge control: Not allowed to purge.

Always perform diagnosis continuously.

Scheme 2402

Scheme 2402: DIAGNOSTIC METHOD

Scheme 2403

Scheme 2403
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes 1 second (8 cycles).
  2. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when all the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor activation judgment: Front oxygen (A/F) sensor full activation is not complete, or front oxygen (A/F) sensor half activation is not complete.
  2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
  3. Compensation when starting the engine at high temperature: Make the MIN value to be 0 from 0.3 normally.
  4. Purge control: Not allowed to purge.

Perform the diagnosis continuously after engine starting.

Scheme 2404

Scheme 2404: DIAGNOSTIC METHOD

Scheme 2405

Scheme 2405
  1. Abnormality Judgment Judge NG when the continuous time of completing all the malfunction criteria below becomes more than 2560 millisecond (10 cycles).
  2. Judgment Value Time Needed for Diagnosis: 2.56 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when all the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Sub feedback control: Not allowed

Perform the diagnosis continuously after engine starting.

Scheme 2406

Scheme 2406: DIAGNOSTIC METHOD

Scheme 2407

Scheme 2407
  1. Abnormality Judgment Judge NG when the continuous time of completing all the malfunction criteria below becomes more than 2560 milliseconds (10 cycles).
  2. Judgment Value Time Needed for Diagnosis: 2.56 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when all the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Sub feedback control: Not allowed

Perform the diagnosis continuously after idling.

Scheme 2408

Scheme 2408: DIAGNOSTIC METHOD

Scheme 2409

Scheme 2409
  1. Abnormality Judgment Judge NG when either Low side or High side becomes NG. Judge NG when the continuous time of completing the malfunction criteria below becomes more than 3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 3 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when both Low side and High side become OK. Judge OK when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Intake manifold pressure sensor process: Estimate the pressure from engine load.
  2. ISC feedback: Not allowed to calculate the amount of feedback.
  3. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
  4. Fuel cut control: Not allowed to cut the over pressure charged fuel.

Perform the diagnosis continuously after idling.

Scheme 2410

Scheme 2410: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more then the time needed for diagnosis.
  2. Judgment Value Time Needed for Diagnosis: Low side 3 seconds High side 10 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK the when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2411

Scheme 2411
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Air flow meter: Engine load is normally calculated by manifold pressure and engine speed; however, calculated only by manifold pressure.
  2. EVAP conc. learning (fuel): Not allowed to learn.
  3. Knock compensation: Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value. At normal: knock compensation = 0°CA is fixed. At trouble: knock compensation 0°CA is fixed. (Retard max. 12°CA at knock.) Not allowed to update the whole learning compensation factor. Not allowed to calculate the partial learning zone compensation value.
  4. ISC control: Make the open loop compensation to be the given value (1 g (0.04 oz)/s). Stop calculating the throttle sensor temperature compensation. (Hold the previous value.)
  5. Purge control: Not allowed to purge.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Air flow meter: Engine load is normally calculated by manifold pressure and engine speed; however, calculated only by manifold pressure.

  1. EVAP conc. learning (fuel): Not allowed to learn.
  2. Knock compensation: Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value. At normal: knock compensation = 0°CA is fixed. At trouble: knock compensation 0°CA is fixed. (Retard max. 12°CA at knock.) Not allowed to update the whole learning compensation factor. Not allowed to calculate the partial learning zone compensation value.
  3. ISC control: Make the open loop compensation to be the given value (1 g (0.04 oz)/s). Stop calculating the throttle sensor temperature compensation. (Hold the previous value.)
  4. Purge control: Not allowed to purge.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Air flow meter: Engine load is normally calculated by manifold pressure and engine speed; however, calculated only by manifold pressure.

  1. EVAP conc. learning (fuel): Not allowed to learn.
  2. Knock compensation: Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value. At normal: knock compensation = 0°CA is fixed. At trouble: knock compensation 0°CA is fixed. (Retard max. 12°CA at knock.) Not allowed to update the whole learning compensation factor. Not allowed to calculate the partial learning zone compensation value.
  3. ISC control: Make the open loop compensation to be the given value (1 g (0.04 oz)/s). Stop calculating the throttle sensor temperature compensation. (Hold the previous value.)
  4. Purge control: Not allowed to purge.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Intake manifold pressure sensor process: Estimate the pressure from engine load. ISC feedback: Not allowed to calculate the amount of feedback.

  1. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
  2. Fuel cut control: Not allowed to cut the over pressure charged fuel.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Intake manifold pressure sensor process: Estimate the pressure from engine load. ISC feedback: Not allowed to calculate the amount of feedback.

  1. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
  2. Fuel cut control: Not allowed to cut the over pressure charged fuel.

Perform the diagnosis when the vehicle speed condition is completed after idling from starting the cooled engine.

Scheme 2412

Scheme 2412: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 1 second.
  2. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2413

Scheme 2413
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Intake air temperature sensor process: Intake air temperature is fixed at 20°C (68°F).

Always perform the diagnosis continuously.

Scheme 2414

Scheme 2414: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2415

Scheme 2415
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Intake air temperature sensor process: Intake air temperature is fixed at 20°C (68°F).

Always perform the diagnosis continuously.

Scheme 2416

Scheme 2416: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2417

Scheme 2417
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Intake air temperature sensor process: Intake air temperature is fixed at 20°C (68°F).

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Engine coolant temperature process: Fix the engine coolant temperature at 70°C (158°F). ISC feedback: Calculate the target engine speed setting the engine coolant temperature to 70°C (158°F).

  1. ISC learning: Not allowed to learn.
  2. Heavy fuel judgment control: Not allowed to carry out the heavy judgment.
  3. Air conditioner control: Not allowed to turn the air conditioner to ON.
  4. Radiator fan control: Both main and sub fan are in High driving.
  5. Increase compensation factor at high coolant temperature: Increase normally occurs with high temperature and other conditions; however, occurs with other conditions except coolant temperature condition.
  6. AVCS control: Make the oil flow control valve driving output to be Duty=0%.
  7. Tumble generator valve control: Open the tumble generator valve.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Engine coolant temperature process: Fix the engine coolant temperature at 70°C (158°F). ISC feedback: Calculate the target engine speed setting the engine coolant temperature to 70°C (158°F).

  1. ISC learning: Not allowed to learn.
  2. Heavy fuel judgment control: Not allowed to carry out the heavy judgment.
  3. Air conditioner control: Not allowed to turn the air conditioner to ON.
  4. Radiator fan control: Both main and sub fan are in High driving.
  5. Increase compensation factor at high coolant temperature: Increase normally occurs with high temperature and other conditions; however, occurs with other conditions except coolant temperature condition.
  6. AVCS control: Make the oil flow control valve driving output to be Duty = 0%.
  7. Tumble generator valve control: Open the tumble generator valve.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

top power distribution to electric control throttle motor. (Throttle opening is fixed to 6°.)

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

top power distribution to electric control throttle motor. (Throttle opening is fixed to 6°.)

Perform the diagnosis only once after engine starting.

Scheme 2418

Scheme 2418: DIAGNOSTIC METHOD

Scheme 2419

Scheme 2419

Scheme 2420

Scheme 2420
  1. Abnormality Judgment Judge NG when the malfunction criteria below are completed.
  2. Judgment Value Timer for diagnosis after engine starting Timer stop at fuel cut mode. During the driving conditions except a) above, timer count up by 64 milliseconds + TWCNT milliseconds at every 64 milliseconds. Where, TWCNT is determined as follows, TWCNT = 0 at idle switch ON, TWCNT show on the following table at idle switch OFF. Judgment value of timer after engine starting ***451.1 - 25.9 x Ti Ti is the lowest coolant temperature after starting the engine. Time Needed for Diagnosis: To be determined. (It is varied by the Min. engine coolant temperature and engine conditions such as vehicle speed and engine coolant temperature.) Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Engine coolant temperature process: Fix the engine coolant temperature at 70°C (158°F).
  2. ISC feedback: Calculate the target engine speed setting the engine coolant temperature to 70°C (158°***F).
  3. ISC learning: Not allowed to learn.
  4. Heavy fuel judgment control: Not allowed to carry out the heavy judgment.
  5. Air conditioner control: Not allowed to turn the air conditioner to ON.
  6. Radiator fan control: Both main and sub fan are in High driving.
  7. Increase compensation factor at high coolant temperature: Increase normally occurs with high temperature and other conditions; however, occurs with other conditions except coolant temperature condition.
  8. AVCS control: Make the oil flow control valve driving output to be Duty=0%.
  9. Tumble generator valve control: Open the tumble generator valve.

Always perform the diagnosis continuously.

Scheme 2421

Scheme 2421: DIAGNOSTIC METHOD

Scheme 2422

Scheme 2422
  1. abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 30 seconds.
  2. Judgment Value Time Needed for Diagnosis: 30 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis once before engine starting with the ignition switch ON.

Scheme 2423

Scheme 2423: DIAGNOSTIC METHOD

Scheme 2424

Scheme 2424
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.3 seconds Malfunction Indicator Light Illumination: Detect when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the continuous time of completing the malfunction criteria below becomes more than 0.26 seconds.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Atmospheric pressure sensor process: Fix the atmospheric pressure to 101 kPa (760 mmHg, 29.8 inHg).

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor activation judgment: Front oxygen (A/F) sensor full activation is not complete, or front oxygen (A/F) sensor half activation is not complete.
  2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
  3. Compensation when starting the engine at high temperature: Make the MIN value to be 0 from 0.3 normally.
  4. Purge control: Not allowed to purge.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor activation judgment: Front oxygen (A/F) sensor full activation is not complete, or front oxygen (A/F) sensor half activation is not complete.
  2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
  3. Compensation when starting the engine at high temperature: Make the MIN value to be 0 from 0.3 normally.
  4. Purge control: Not allowed to purge.

Perform diagnosis only once at a constant speed of 10 to 120 km/h (6.21 to 74.6 MPH) in 120 seconds after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate.
  2. Correction when re-starting at high temperature: Normally minimum value 0.3 ° 0.
  3. Purge control: Not allowed to purge.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor activation judgment: Front oxygen (A/F) sensor full activation is not complete, or front oxygen (A/F) sensor half activation is not complete.
  2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
  3. Compensation when starting the engine at high temperature: Make the MIN value to be 0 from 0.3 normally.
  4. Purge control: Not allowed to purge.

Perform the diagnosis once after warming up the engine.

Scheme 2425

Scheme 2425: DIAGNOSTIC METHOD
  1. Abnormality Judgment judge NG when the malfunction criteria below are completed.
  2. Judgment Value Time Needed for Diagnosis: 200 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2426

Scheme 2426
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Sub feedback control: Not allowed

Perform the diagnosis once after warming up the engine.

Scheme 2427

Scheme 2427: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the malfunction criteria below are completed.
  2. Judgment Value Time Needed for Diagnosis: 200 seconds Malfunction Indicator Light Illumination: Detect when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2428

Scheme 2428
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Sub feedback control: Not allowed

Perform the diagnosis only once when fuel shut-off in deceleration after repaid acceleration. (Pay attention to oxygen sensor voltage for the timing of deceleration in order to calculated the diagnostic value.)

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Sub feedback control: Not allowed

Perform the diagnosis continuously at idling or a constant speed after warming up the engine.

Scheme 2429

Scheme 2429: DIAGNOSTIC METHODS

Scheme 2430

Scheme 2430

Scheme 2431

Scheme 2431
  1. Abnormality Judgment Judge that the fuel system malfunction occurs when the time during completing the malfunction criteria below continues 30 seconds or more by comparing the diagnosed value (fsobd) with threshold valve.
  2. Judgment Value Map 4 Threshold valve for fuel system malfunction criteria Time Needed for Diagnosis: 10 seconds x 3 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are continued for 10 seconds.
  4. Judgment Value
  1. When OK with similar drive in 3 driving cycles.
  2. When "Clear Memory" was performed

Rich side malfunction

  1. Purge control solenoid valve control: Not allowed to purge.
  2. Heavy fuel judgment control: Not allowed to carry out the heavy judgment.

Perform the diagnosis continuously at idling or a constant speed after warming up the engine.

Scheme 2432

Scheme 2432: DIAGNOSTIC METHOD

Scheme 2433

Scheme 2433
  1. Abnormality Judgment Judge that the fuel system malfunction occurs when the time during completing the malfunction criteria below continues 30 seconds or more by comparing the diagnosed value (fsobd) with threshold value.
  2. Judgment Valve Map 4 Threshold value for fuel system malfunction criteria Time Needed for Diagnosis: 10 seconds x 3 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are continued for 10 seconds.
  4. Judgment Value

Scheme 2434

Scheme 2434
  1. When OK with similar drive in 3 drive cycles.
  2. When "Clear Memory" was performed

Rich side malfunction

  1. Purge control solenoid valve control: Not allowed to purge.
  2. Heavy fuel judgment control: Not allowed to carry out the heavy judgment.

Always perform the diagnosis continuously.

Scheme 2435

Scheme 2435: DIAGNOSTIC METHOD

Scheme 2436

Scheme 2436
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 120 seconds.
  2. Judgment Value Time Needed for Diagnosis: 120 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving Cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value
  5. Stuck Diagnosis

If the fuel temperature which might rise along with the engine idling (the cumulative amount of intake air after engine starting is large) does not increase, the engine is considered to be stuck and make an NG judgment.

Scheme 2437

Scheme 2437: ENABLE CONDITION

Perform the diagnosis continuously in 20 seconds or more after starting the engine.

Scheme 2438

Scheme 2438: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the malfunction criteria below are completed.
  2. Judgment Value Time Needed for Diagnosis: To be determined. Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2439

Scheme 2439

When the OK driving cycle was completed 3 times in a row When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2440

Scheme 2440: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK when the cumulative time until completing the malfunction criteria below becomes more than 2.5 seconds.
  4. Judgment Value

Scheme 2441

Scheme 2441
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2442

Scheme 2442: DIAGNOSTIC METHOD

Scheme 2443

Scheme 2443
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK when the cumulative time until completing the malfunction criteria below becomes more than 2.5 seconds.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Stop power distribution to electric control throttle motor. (Throttle opening is fixed to 6°.)

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

top power distribution to electric control throttle motor. (Throttle opening is fixed to 6°.)

Always perform the diagnosis continuously.

Scheme 2444

Scheme 2444: DIAGNOSTIC METHOD

Scheme 2445

Scheme 2445
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

OFF setting may be needed depending on the NG portion.

Always perform the diagnosis continuously.

Scheme 2446

Scheme 2446: DIAGNOSTIC METHOD

Scheme 2447

Scheme 2447

Scheme 2448

Scheme 2448
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 1 second.
  2. Judgment Value
  3. Map 10 Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  4. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  5. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously after starting the engine.

Abnormality Judgment

Judge NG when the continuous time until completing the malfunction criteria below becomes more than 655 milliseconds.

Scheme 2449

Scheme 2449: Abnormality Judgment
  1. Judgment Value Time Needed for Diagnosis: 655 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value

Scheme 2450

Scheme 2450
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously after starting the engine.

Judge NG when the continuous time until completing the malfunction criteria below becomes more than 655 milliseconds.

Scheme 2451

Scheme 2451: Abnormality Judgment

Scheme 2452

Scheme 2452
  1. Judgment Value Time Needed for Diagnosis: 655 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

  1. Detecting misfire is able to be carried out in the condition between idling and high revolution.
  2. Perform the diagnosis continuously.

Scheme 2453

Scheme 2453: DIAGNOSTIC METHOD

When the misfire occurred, the engine speed is decreased and the crankshaft position speed will change. Calculate the interval difference value (diagnostic value) from crankshaft position speed by the following formula, and judge whether the misfire occurs or not comparing the calculated result with judgment value Counting the number of misfire up, and if the misfire ratio is higher during 1000 rev. or 200 rev., judge NG for the corresponding cylinder.

Calculate the diagnostic value (from crankshaft position speed)

Misfire detection every single ignition (Compare diagnostic value with judgment value)

  1. 180° Interval Difference Method
  2. 360° Interval Difference Method
  3. 720° Interval Difference Method

NG judgment (Judge misfire occurrence required by the law) (Compare number of misfire with judgment)

  1. FTP1.5 times misfire NG judgment
  2. Catalyst damage misfire NG judgment

As the following figure, pick out a random cylinder as the standard and name it omg 0. And the former crankshaft position speed is named omg 1, the second former crankshaft position speed is named omg 2, the third is named omg 3, and the following is the same.

Scheme 2454

Scheme 2454

Scheme 2455

Scheme 2455

Scheme 2456

Scheme 2456

Scheme 2457

Scheme 2457

Scheme 2458

Scheme 2458
  1. 180° Interval Difference Method Diagnosis value domg 180 = (omg -1 omg 0) - (omg 7 - omg 1)/6 Judge misfire occurs in the following cases. domg 180 > judgment value of positive side domg 180 le judgment value of negative side (judgment value before 180°CA)
  2. 360° Interval Difference Method Diagnosis value domg 360 = (omg 1 - omg 0) - (omg 4 - omg 3) Misfire judgment domg 360 > judgment value Misfire occurs
  3. 720° Interval Difference Method Diagnosis value domg 720 = (omg 1 - omg 0) - (omg 7 - omg 6) Misfire judgment domg 720 > judgment value Misfire occurs
  4. FTP 1.5 times misfire (Misfire occurrence level affecting exhaust gas)
  5. Judgment Value (Judge that malfunction occurs when the misfire ratio is high in 1000 engine revs. Time Needed for Diagnosis: 1000 engine revs. Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  6. Catalyst damage misfire (Misfire occurrence level damaging catalyst)
  7. Judgment Value (Judge that malfunction occurs when the misfire ratio is high in 200 engine revs. (400 ignitions))

Scheme 2459

Scheme 2459

Map 1 Fault criteria threshold for misfire which would result in catalyst damage

Scheme 2460

Scheme 2460

These figures mean the misfire ratio (%) in 400 ignitions; for example, 22.5 (%) means 400 (ignition) x 22.5 (%) = 90 (ignition) or more, so this case is judged misfire.

Time Needed for Diagnosis: 200 engine revs.

Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.

  1. When the OK driving cycle was completed 3 consecutive times.
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Judge NG when the continuous time completing the malfunction criteria below becomes more than 1 second.

Scheme 2461

Scheme 2461: Abnormality Judgment

Scheme 2462

Scheme 2462
  1. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Knock compensation

  1. Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value.
  2. At normal: knock compensation = 0°CA is fixed.
  3. At trouble: knock compensation = -5°CA. (Retard 5°CA.)
  4. Not allowed to update the whole learning compensation factor.
  5. Not allowed to calculate the partial learning zone compensation value.

Always perform diagnosis continuously.

Judge NG when the continuous time of completing the malfunction criteria below becomes more than 1 second.

Scheme 2463

Scheme 2463: Abnormality Judgment

Scheme 2464

Scheme 2464
  1. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Knock compensation

  1. Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value.
  2. At normal: knock compensation = 0°CA is fixed.
  3. At trouble: knock compensation = -5°CA. (Retard 5°CA.)
  4. Not allowed to update the whole learning compensation factor.
  5. Not allowed to calculate the partial learning zone compensation value.

Always perform the diagnosis continuously.

Scheme 2465

Scheme 2465: DIAGNOSTIC METHOD

Scheme 2466

Scheme 2466
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 3 second.
  2. Judgment Value Time Needed for Diagnosis: 1 second Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK when the continuous time of completing the malfunction criteria below becomes more than 3 seconds.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously under 3000 rpm engine speed.

Scheme 2467

Scheme 2467: DIAGNOSTIC METHOD

Scheme 2468

Scheme 2468
  1. Abnormality Judgment Judge NG when all the malfunction criteria below are completed more than 10 times in a row.
  2. Judgment Value Time Needed for Diagnosis: 10 engine revs. Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

The camshaft signal normally enters three times by two rev. of engine speed; however, judge NG when the camshaft signal does not enter three times continuously.

Judge NG when the malfunction criteria below are completed more than 100 rev. of engine speed. Judge OK and clear NG when the malfunction criteria below are not completed.

Scheme 2469

Scheme 2469: Abnormality Judgment

Scheme 2470

Scheme 2470
  1. Judgment Value Time Needed for Diagnosis: 100 rev. Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Ignition timing whole learning compensation: -Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. -Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: Most timing retard leaning is not complete or most timing retard learning completion is not experienced.
  4. ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. Make the OCV driving Duty to be the given value (9.36%).

Perform the diagnosis once at the constant vehicle speed of 75 km/h (46.6 MPH) or more after warming up the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

ENABLE CONDITION

0.04-inch Diagnosis

Scheme 2471

Scheme 2471: ENABLE CONDITION

0.020-inch Diagnosis

Scheme 2472

Scheme 2472
  1. 0.040-inch Diagnosis Perform the diagnosis only once in more than 856 seconds after the engine start at the constant driving speed of 32 km/h (20 MPH) or more. Pay attention to the fuel temperature and fuel level.
  2. 0.02-inch Diagnosis Perform diagnosis in more than 335 seconds after engine start at the constant speed of 68 km/h (42 MPH) or more, and then terminate the diagnosis when judged OK or NG. Font judged OK or NG, repeat the diagnosis until judged OK or NG. Pay attention to the fuel temperature and fuel level.

If OK judgment cannot be made, extend Mode Z 16 seconds more, and judge NG when all the criteria below are completed in 16 seconds.

Scheme 2473

Scheme 2473: Abnormality Judgment

Scheme 2474

Scheme 2474
  1. Judgment Value Time Needed for Diagnosis: 4 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs. Finish the Evap. diagnosis when making NG judgment for drain valve close fixation. Cancel the Evap. diagnosis when the OK/NG judgement for drain valve close fixation and purge control solenoid valve open fixation cannot be made in Mide Z.
  2. Diagnosing function of CPC [P0457] CPC functional diagnosis is performed by monitoring the tank pressure in Mode Z. Normality Judgment Make OK judgment in 3 seconds after Mode Z started, and change to Mode A if OK. Both diagnostic method and judgment value are the same as PCV normality judgment.
  3. Leak Diagnosis DTC P0442 DTC P0456 DTC P0457
  4. Diagnostic method The diagnostic method consists of creating a sealed vacuum in the fuel tank and then determining the presence of leakage from the speed at which the tank internal pressure returns to atmospheric pressure. The diagnosis is divided into the following five phases. Mode A: (Estimation of evaporation gas yield) The tank pressure variation amount in Mode A is calculated as P1. The tank pressure variation amount in Mode A is calculated as P1. After calculating P1, change to Mode B. Mode B: (Seal negative pressure) Introduce the negative pressure in the intake manifold to the tank. Approx. 0-->-1.4 kPa (0-->-10.5 mmHg, 0-->-0.41 inHg) (0.04-in diagnosis) Approx. 0-->-3.05 kPa (0-->-22.9 mmHg, 0-->0.9 inHg) (0.02-in diagnosis) When the pressure above (desired negative pressure) is reached, Mode C is entered. In this case, if the tank pressure does not become the desired negative pressure, judge that there is a large leakage in the system. Judge NG when the malfunction criteria below is completed. Finish the Evap, diagnosis when judging large leak (10 seconds) in 0.04-inch diagnosis. Cancel the diagnosis (10 to 20 seconds) in 0.02-inch diagnosis.

Judge NG (large leak) when the criteria below are completed in the specified time.

Scheme 2475

Scheme 2475: Abnormality Judgment

Scheme 2476

Scheme 2476
  1. Judgment Value Mode C: (Check increasing pressure) Stop the introduction of negative pressure. (Wait until the tank pressure returns to the start level of P2 calculation.) Change to Mode D when the tank pressure returns to the start level of P2 calculation. Judge immediate OK and change to Mode E when it does not return in spite of spending the specified time. Mode D: (Measurement of negative pressure changes) Monitor the pressure variation in the tank in Mode D. In this case, the tank pressure increases, that is, the pressure becomes as high as the atmospheric air pressure, because evaporator is generated. However, if any leakage exists, the pressure increases additionally in proportion to this leakage. The pressure variation of this tank is P2. After calculating P2, perform small leak diagnosis and change to Mode E if normal. Complete Evap, diagnosis if abnormal.
  2. After Mode D Assigning P1 and P2, which are tank variations measured in Mode A and Mode B, to the formula below judge the small leakage of the system. If the measured judgment value exceeds the threshold value, it judged to be malfunction.
  3. 0.04-inch Diagnosis

Judge NG when the criteria below are completed and judge OK when not completed.

Scheme 2477

Scheme 2477: Abnormality Judgment

Scheme 2478

Scheme 2478
  1. Judgment Value
  2. Map 7 Limit of malfunction criteria for 0.04-inch leak as Evap. diagnosis.
  3. 0.02-inch Diagnosis

Judge NG when the criteria below are completed.

Scheme 2479

Scheme 2479: Abnormality Judgment

Scheme 2480

Scheme 2480
  1. Judgment Value
  2. Map 8 Limit of malfunction criteria for 0.04-inch leak as Evap. diagnosis.

Normality Judgment

Judge OK when the criteria below are completed.

Scheme 2481

Scheme 2481: Normality Judgment

Scheme 2482

Scheme 2482

Scheme 2483

Scheme 2483

Scheme 2484

Scheme 2484

Scheme 2485

Scheme 2485
  1. Judgment Value
  2. Map 9. If not judged OK or NG, repeat the diagnosis until judged OK or NG.
  3. CCV Property Diagnosis [P1443] Mode E: The tank pressure must become again as high as the atmospheric air pressure, after the evaporation diagnosis (normal judgment on Mode C or after Mode D). If the tank pressure does not become as high as the atmospheric air pressure, judge that CCV is blocked. Judge NG when the criteria below are completed.
  4. Time Needed for Diagnosis: 0.04-inch: 30 - 100 seconds 0.02-inch: 30 - 100 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous drive cycles.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Atmospheric purge solenoid function malfunction; Open the pressure control solenoid valve.

Always perform the diagnosis continuously.

Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.

Scheme 2486

Scheme 2486: Abnormality Judgment

Scheme 2487

Scheme 2487
  1. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

PCV control: Open the PCV solenoid.

Always perform the diagnosis continuously.

Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.

Scheme 2488

Scheme 2488: Abnormality Judgment

Scheme 2489

Scheme 2489
  1. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

PCV control: Open the PCV solenoid.

  1. Perform the diagnosis continuously in 60 seconds or more after starting the engine.
  2. Be sure to check the fuel level and fuel temperature.

Judge NG when the malfunction criteria below is completed.

Scheme 2490

Scheme 2490: Abnormality Judgment

Scheme 2491

Scheme 2491
  1. Judgment Value If the fuel level (Max. - Min.) in every 60 seconds is less than 5 l, extend 60 seconds more and make judgment with the Max. and Min. fuel level in 120 seconds. If the difference did not appear though the time extended, extend the time (180, 240, 300 seconds) and continue the judgment. Diagnosis counter will count up when the difference of fuel level (Max. - Min.) is more than 5 l. Time Needed for Diagnosis: 1 minute x 16 times or more Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in two continuous drive cycles.
  2. Normality Judgment Judge OK when the malfunction criteria below is completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Purge control solenoid valve control: Purge fixation mode is prohibited.

Always perform the diagnosis continuously.

Judge NG when the continuous time of completing the malfunction criteria below becomes more than 15 seconds.

Scheme 2492

Scheme 2492: Abnormality Judgment

Scheme 2493

Scheme 2493
  1. Judgment Value Time Needed for Diagnosis: 15 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  2. Normality Judgment Judge OK when the malfunction criteria below is completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row When "Clear Memory" was performed

Purge control solenoid valve control: Purge fixation mode is prohibited.

Perform the diagnosis continuously when purging.

Judge NG when the continuous time until completing the malfunction criteria below becomes more than 15 seconds.

Scheme 2494

Scheme 2494: Abnormality Judgment

Scheme 2495

Scheme 2495
  1. Judgment Value Time Needed for Diagnosis: 15 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  2. Normality Judgment Judge OK when the malfunction criteria below is completed.
  3. Judgment Value

When the OK driving cycle was completed 3 times in a row

  1. When "Clear Memory" was performed

Purge control solenoid valve control: Purge fixation mode is prohibited.

Always perform the diagnosis after starting the engine.

Judge NG when the malfunction criteria below are completed.

Scheme 2496

Scheme 2496: Abnormality Judgment

Scheme 2497

Scheme 2497
  1. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  2. Normality Judgment Judge OK and clear NG when the malfunction criterion below is completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis after starting the engine.

Judge NG when the malfunction criteria below are completed.

Scheme 2498

Scheme 2498: Abnormality Judgment

Scheme 2499

Scheme 2499
  1. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  2. Normality Judgment Judge OK and clear NG when the malfunction criterion below is completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Judge NG when the malfunction criteria below are completed.

Scheme 2500

Scheme 2500: Abnormality Judgment

Scheme 2501

Scheme 2501
  1. Judgment Value Time Needed for Diagnosis: To be determined. Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously

Judge NG when the continuous time of completing the malfunction criteria below becomes more than the time needed for diagnosis (2.5 seconds).

Scheme 2502

Scheme 2502: Abnormality Judgment

Scheme 2503

Scheme 2503
  1. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Judge NG when the continuous time of completing the malfunction criteria below becomes more than the time needed for diagnosis (10 seconds).

Scheme 2504

Scheme 2504: Abnormality Judgment

Scheme 2505

Scheme 2505
  1. Judgment Value Time Needed for Diagnosis: 10 second Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

  1. Perform the diagnosis continuously in idling condition.
  2. Pay attention to the fuel level.
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Diagnostic enable condition is completed if the radiator fan changes from OFF to ON when all of the conditions below are completed. When one of the conditions below is not completed, the diagnostic enable condition is not completed.

Scheme 2506

Scheme 2506: ENABLE CONDITION

Perform the diagnosis continuously when idling.

Scheme 2507

Scheme 2507: DIAGNOSTIC METHOD

Scheme 2508

Scheme 2508
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below more than 5 minutes
  2. Judgment Value Time Needed for Diagnosis: 5 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously during fuel cut in deceleration at engine speed of 4000 rpm or less.

Scheme 2509

Scheme 2509: DIAGNOSTIC METHOD

Scheme 2510

Scheme 2510
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 4 seconds.
  2. Judgment Value Time Needed for Diagnosis: 4 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Accelerator sensor signal process: Not allowed all closed points learning.
  2. Vehicle speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
  3. Fuel cut control: Not allowed vehicle speed 0 km/h (0 MPH) fuel cut. Normally the high vehicle speed fuel cut performs on "and" of vehicle speed condition and engine speed, but perform the fuel cut only on engine speed condition (4,800 rpm or more).
  4. ISC control: Set the open loop compensation to specified value (1 g (0.04 oz)/s). Not allowed ISC feedback volume calculation.
  5. Air conditioner control: Not allowed air conditioner cut at accelerating.
  6. Radiator fan control: Hi drive both main/sub.
  7. Judge gear ratio: Control as gear fixed on 6th.
  8. Tumble generator valve control: Open the tumble generator valve.

Perform the diagnosis continuously during fuel cut in deceleration at engine speed of 4000 rpm or less.

Scheme 2511

Scheme 2511: DIAGNOSTIC METHOD

Scheme 2512

Scheme 2512
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 4 seconds.
  2. Judgment Value Time Needed for Diagnosis: 4 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Accelerator sensor signal process: Not allowed all closed points learning.
  2. Vehicle speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
  3. Fuel cut control: Not allowed vehicle speed 0 km/h (0 MPH) fuel cut. Normally the high vehicle speed fuel cut performs on "and" of vehicle speed condition and engine speed, but perform the fuel cut only on engine speed condition (4,800 rpm or more).
  4. ISC control: Set the open loop compensation to specified value (1 g (0.04 oz)/s). Not allowed ISC feedback volume calculation.
  5. Air conditioner control: Not allowed air conditioner cut at accelerating.
  6. Radiator fan control: Hi drive both main/sub.
  7. Judge gear ratio: Control as gear fixed on 6th.
  8. Tumble generator valve control: Open the tumble generator valve.

Perform the diagnosis continuously during idling, 10 seconds after starting and warming up.

Scheme 2513

Scheme 2513: DIAGNOSTIC METHOD

Scheme 2514

Scheme 2514
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than the time needed for diagnosis (10 seconds x 3 times).
  2. Judgment Value Time Needed for Diagnosis: 10 seconds x 3 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criterion below becomes more than the time need for diagnosis (10 seconds).
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel. knock compensation
  2. Knock compensation final retard/advance value: Knock compensation value + Total learning compensation value + Partial learning compensation value
  3. AT normal: Knock compensation value = Fixed on 0°CA
  4. AT Knock compensation value # Fixed on 0°CA (Maximum 12°CA retard on knocking)
  5. Not allowed to refresh learning compensation coefficient
  6. Not allowed to calculate partial learning zone compensation value

Perform the diagnosis continuously during idling, 10 seconds after starting and warming up.

Scheme 2515

Scheme 2515: DIAGNOSTIC METHOD

Scheme 2516

Scheme 2516
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than the time needed for diagnosis (10 seconds x 3 times).
  2. Judgment Value Time Needed for Diagnosis: 10 seconds x 3 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criterion below becomes more than the time need for diagnosis (10 seconds).
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel. knock compensation
  2. Knock compensation final retard/advance value: Knock compensation value + Total learning compensation value + Partial learning compensation value
  3. AT normal: Knock compensation value = Fixed on 0°CA
  4. AT Knock compensation value # Fixed on 0°CA (Maximum 12°CA retard on knocking)
  5. Not allowed to refresh learning compensation coefficient
  6. Not allowed to calculate partial learning zone compensation value

Always perform the diagnosis continuously.

Scheme 2517

Scheme 2517: DIAGNOSTIC METHOD

Scheme 2518

Scheme 2518
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 3 minutes.
  2. Judgment Value Time Needed for Diagnosis: 180 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judgment NO OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform diagnosis at less than 4 km/h (2.49 MPH) of vehicle speed.

Scheme 2519

Scheme 2519: DIAGNOSTIC METHOD

Scheme 2520

Scheme 2520
  1. Abnormality Judgment Judge NG when the continuous time until completing the all malfunction criteria below becomes more than the time needed for diagnosis (2 seconds).
  2. Judgment Value Time Needed for Diagnosis: 2 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs. Judge OK and clear NG when the continuous time until completing the malfunction criteria below becomes more than the time needed for diagnosis (5 seconds).
  3. Normality Judgment Judge OK and clear NG when the continuous time until completing the malfunction criteria below becomes more than the time needed for diagnosis (5 seconds).
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Fuel shut-off: Shut-off fuel for only #1 and #2 cylinder, or for all cylinder in accordance with vehicle speed, engine speed, throttle position

Always perform the diagnosis continuously

Judge NG when the continuous time of completing the malfunction criteria below more than 5 seconds).

Scheme 2521

Scheme 2521: Abnormality Judgment

Scheme 2522

Scheme 2522
  1. Judgment Value Time Needed for Diagnosis: 5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously

Judge NG when the cumulative time of completing the malfunction criteria below becomes more than (30 seconds).

Scheme 2523

Scheme 2523: Abnormality Judgment

Scheme 2524

Scheme 2524
  1. Judgment Value Time Needed for Diagnosis: 30 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  2. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  3. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously after starting the engine.

Scheme 2525

Scheme 2525: DIAGNOSTIC METHOD
  1. JUDGMENT OF MALFUNCTION It judges as NG if any of the following conditions are judged as NG. It judges as OK if all of the following conditions are judged as OK within 1s, and the NG memory is cleared.
  2. Judgment Value Time Needed for Diagnosis: 1 time Malfunction Indicator Light Illumination: Illuminates simultaneously when malfunction is detected.
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis immediately after IG key SW is turned ON.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2526

Scheme 2526: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.5 seconds Malfunction Indicator Light Illumination: Illuminates simultaneously when malfunction is detected.
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

  1. (4): Always perform the diagnosis continuously.
  2. Always perform the diagnosis continuously on idling.
  3. Perform the diagnosis when the brake pedal is depressed.
  4. Always perform the diagnosis continuously.
  5. Always perform the diagnosis continuously when the cruise control pedal is not operating.
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously when the electric control throttle is operating.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stopped)

Stop the current to electric control throttle motor. (Fix the throttle opening angle to 6°.)

Always perform the diagnosis continuously.

Scheme 2527

Scheme 2527: DIAGNOSTIC METHOD

Scheme 2528

Scheme 2528
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2529

Scheme 2529: DIAGNOSTIC METHOD

Scheme 2530

Scheme 2530
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed.

None

Perform the diagnosis continuously in 2 seconds or more after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously in 2 seconds or more after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Cruise control command: Not allowed to command cruise control

Perform the diagnosis continuously in 2 seconds or more after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously in 2 seconds or more after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform diagnosis.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Tumble generated value position

  1. Learning of tumble generated value position fully closed and date renewed to close side.
  2. Learning of tumble generated value position fully opened and date renewed to open side.

Always perform diagnosis.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Tumble generated value position

  1. Learning of tumble generated value position fully closed and date renewed to close side.
  2. Learning of tumble generated value position fully opened and date renewed to open side.

Always perform diagnosis.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Tumble generated value position

  1. Learning of tumble generated value position fully closed and date renewed to close side.
  2. Learning of tumble generated value position fully opened and date renewed to open side.

Always perform diagnosis.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Tumble generated value position

  1. Learning of tumble generated value position fully closed and date renewed to close side.
  2. Learning of tumble generated value position fully opened and date renewed to open side.

Always perform the diagnosis continuously.

Scheme 2531

Scheme 2531: DIAGNOSTIC METHOD

Scheme 2532

Scheme 2532
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 3 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated value opening

  1. For tumble generated value all closing points learning, not allowed to update to the closing side.
  2. For tumble generated valve all opening points learning, not allowed to update to the opening side. Tumble generated valve control
  3. Output the open signal.

Always perform the diagnosis continuously.

Scheme 2533

Scheme 2533: DIAGNOSTIC METHOD

Scheme 2534

Scheme 2534
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 3 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated value opening

  1. For tumble generated value all closing points learning, not allowed to update to the closing side.
  2. For tumble generated valve all opening points learning, not allowed to update to the opening side. Tumble generated valve control
  3. Output the open signal.

Always perform the diagnosis continuously.

Scheme 2535

Scheme 2535: DIAGNOSTIC METHOD

Scheme 2536

Scheme 2536
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 3 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated value opening

  1. For tumble generated value all closing points learning, not allowed to update to the closing side.
  2. For tumble generated valve all opening points learning, not allowed to update to the opening side. Tumble generated valve control
  3. Output the open signal.

Always perform the diagnosis continuously.

Scheme 2537

Scheme 2537: DIAGNOSTIC METHOD

Scheme 2538

Scheme 2538
  1. Abnormality Judgment Judge NG when the cumulative time of completing the malfunction criteria below becomes more than 3 seconds.
  2. Judgment Value Time Needed for Diagnosis: 3 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated value opening

  1. For tumble generated value all closing points learning, not allowed to update to the closing side.
  2. For tumble generated valve all opening points learning, not allowed to update to the opening side. Tumble generated valve control
  3. Output the open signal.

Always perform the diagnosis continuously.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed (Only engine stopped)

Tumble generated value control: Not allowed to move tumble generated valve.

Always perform the diagnosis continuously.

When the OK driving cycle was completed 3 times in a row

When "Clear Memory" was performed

Tumble generated valve control: Not allowed to move tumble generated valve.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated valve control: Not allowed to move tumble generated valve.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Tumble generated valve control: Not allowed to move tumble generated valve.

Always perform the diagnosis continuously.

Scheme 2539

Scheme 2539: DIAGNOSTIC METHOD

Scheme 2540

Scheme 2540
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Atmospheric pressure sensor process: Fix the atmospheric pressure to 101.3 kPa (760 mmHg, 29.9 inHg).

Always perform the diagnosis continuously.

Scheme 2541

Scheme 2541: DIAGNOSTIC METHOD

Scheme 2542

Scheme 2542
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 0.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Atmospheric pressure sensor process: Fix the atmospheric pressure to 101.3 kPa (760 mmHg, 29.9 inHg).

Perform diagnosis continuously at a constant speed of 20 km/h (12 MPH) or more since 60 seconds after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
  2. Correction when re-starting at high temperature: Normally minimum value 0.30
  3. Purge control: Not allowed to purge

Perform diagnosis continuously at a constant speed of 20 km/h (12 MPH) or more since 60 seconds after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
  2. Correction when re-starting at high temperature: Normally minimum value 0.30
  3. Purge control: Not allowed to purge
  1. Ignition switch ON OFF
  2. Ignition switch OFF ON (After clear memory only)
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Fix the throttle opening to 6°.

  1. Detecting misfire is able to be carried out in the condition between idling and high revolution.
  2. Always perform the diagnosis continuously.
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously at more than 2400 rpm of engine speed in 240 seconds and more after starting the engine in cool condition.

Pay attention to the coolant temperature at engine starting.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis after starting the engine.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2543

Scheme 2543: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value

Scheme 2544

Scheme 2544
  1. When the OK idling cycle is completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2545

Scheme 2545: DIAGNOSTIC METHOD

Scheme 2546

Scheme 2546
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK idling cycle is completed 3 times in a row
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously when the fuel tank pressure is large or small in 80 seconds or more after starting the engine.

Scheme 2547

Scheme 2547: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge NG when the Malfunction criteria below is completed 5 times.
  2. Judgment Value Time Needed for Diagnosis: 80 seconds x 5 times Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OK and clear NG when the malfunction criteria below is completed.
  4. Judgment Value

Scheme 2548

Scheme 2548
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2549

Scheme 2549: DIAGNOSIS METHOD

Scheme 2550

Scheme 2550
  1. Abnormality Judgment Judge NG when the continuous time until completing the malfunction criteria below becomes more than 2.5 seconds. Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  2. Normality Judgment Judge OK clear NG when the malfunction criteria below is completed.
  3. Judgment Value
  1. When the OK idling cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2551

Scheme 2551: DIAGNOSTIC METHOD

Scheme 2552

Scheme 2552
  1. Abnormality Judgment Judge OFF NG when the malfunction criteria below are completed.
  2. Judgment Value Time Needed for Diagnosis: 1 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment Judge OFF OK and clear the NG when the malfunction criteria below are completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2553

Scheme 2553: DIAGNOSTIC METHOD

Scheme 2554

Scheme 2554
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 8.2 seconds.
  2. Judgment Value Time Needed for Diagnosis: 8.2 seconds Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.
  3. Normality Judgment Judge OK and clear the NG when the continuous time of completing the malfunction criteria below becomes more than 8.2 seconds.
  4. Judgment Value
  1. When the OK driving cycle is completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2555

Scheme 2555: DIAGNOSTIC METHOD

Scheme 2556

Scheme 2556
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2.5 seconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear NG when the malfunction criteria below is completed.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2557

Scheme 2557: DIAGNOSTIC METHOD

Scheme 2558

Scheme 2558
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2000 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  4. Judgment Value
  1. When the OK driving cycle is completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Ignition timing whole learning compensation: - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: - Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. - Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: - Most timing retard learning is not complete or most timing retard learning completion is not experienced. - ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. - Make the OCV driving Duty to be the given value (9.36%)

Always perform the diagnosis continuously.

Scheme 2559

Scheme 2559: DIAGNOSTIC METHOD

Scheme 2560

Scheme 2560
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2000 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  4. Judgment Value
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Ignition timing whole learning compensation: - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: - Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. - Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: - Most timing retard learning is not complete or most timing retard learning completion is not experienced. - ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. - Make the OCV driving Duty to be the given value (9.36%)

Always perform the diagnosis continuously.

Scheme 2561

Scheme 2561: DIAGNOSTIC METHOD

Scheme 2562

Scheme 2562
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2000 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  4. Judgment Value
  1. When the OK driving cycle is completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Ignition timing whole learning compensation: - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: - Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. - Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: - Most timing retard learning is not complete or most timing retard learning completion is not experienced. - ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. - Make the OCV driving Duty to be the given value (9.36%)

Always perform the diagnosis continuously.

Scheme 2563

Scheme 2563: DIAGNOSTIC METHOD

Scheme 2564

Scheme 2564
  1. Abnormality Judgment Judge NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  2. Judgment Value Time Needed for Diagnosis: 2000 milliseconds Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.
  3. Normality Judgment Judge OK and clear NG when the continuous time of completing the malfunction criteria below becomes more than 2 seconds.
  4. Judgment Value
  1. When the OK idling cycle is completed 3 times in a row
  2. When "Clear Memory" was performed
  1. Ignition timing whole learning compensation: - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete. - Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment from abnormality judgment, and then make the whole learning incomplete.
  2. Ignition timing partial learning compensation: - Enter the initial value (0°CA) to the compensation value of partial learning zone when IG OFF. - Enter the initial value (0°CA) to the compensation value of partial learning zone when making a normality judgment from abnormality judgment.
  3. AVCS control: - Most timing retard learning is not complete or most timing retard learning completion is not experienced. - ISC feedback compensation: Do not perform the AVCS actual timing advance compensation. - Make the OCV driving Duty to be the given value (9.36%)

Perform the diagnosis continuously at a constant 80 km/h (50 MPH) or more.

Scheme 2565

Scheme 2565: DIAGNOSTIC METHOD
  1. Abnormality Judgment Calculate the continuous time from the sticking of sub feedback control amount to lean side and cumulative deviation (sumdelo 2) of rear oxygen sensor voltage and target voltage. Judge NG when the malfunction criteria below are completed after 300 seconds have passed continuously.
  2. Judgment Value Time Needed for Diagnosis: 300 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment

Judge OK and clear the NG when the rear oxygen output is reversed, and during 4 seconds after that, the sub feedback control amount does not stick to rich or lean sides.

  1. When OK with similar drive in 3 drive cycles
  2. When "Clear Memory" was performed

None

Perform the diagnosis continuously at a constant 80 km/h (50 MPH) or more.

Scheme 2566

Scheme 2566: DIAGNOSTIC METHOD
  1. Abnormality Judgment Calculate the continuous time from the sticking of sub feedback control amount to rich side and cumulative deviation (sumdelo 2) of rear oxygen sensor voltage and target voltage. Judge NG when the malfunction criteria below are completed after 300 seconds have passed continuously.
  2. Judgment Value Time Needed for Diagnosis: 300 seconds Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
  3. Normality Judgment

Judge OK and clear the NG when the rear oxygen output is reversed, and during 4 seconds after that, the sub feedback control amount does not stick to rich or lean sides.

  1. When OK with similar drive in 3 drive cycles
  2. When "Clear Memory" was performed

None

Always perform the diagnosis continuously.

Scheme 2567

Scheme 2567: DIAGNOSTIC METHOD
  1. Abnormality Judgment Judge OK and NG when the malfunction criteria below are completed.
  2. Judgment Value

Time Needed for Diagnosis

  1. 500 milliseconds (NG judgment)
  2. 2000 milliseconds (OK judgment)

Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Stop the continuity to the electronic control throttle motor. (Fix the throttle opening angle to 6°.)

Always perform the diagnosis continuously.

Scheme 2568

Scheme 2568: DIAGNOSTIC METHOD
  1. Abnormality judgment Judge NG when continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.
  2. Judgment Value

Time Needed for Diagnosis

  1. 400 milliseconds (For NG)
  2. 2000 milliseconds (For OK)

Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.

  1. When OK with similar drive in 3 drive cycles
  2. When "Clear Memory" was performed (Only engine stop)

Stop the continuity to the electronic control throttle motor. (Fix the throttle opening angle to 6°.)

  1. Ignition switch ON --> OFF
  2. Ignition switch OFF --> ON (After clear memory only)
  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Stop the continuity to the electronic control throttle motor. (Fix the throttle opening angle to 6°.)

Perform the diagnosis at all close point learning.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Stop the continuity to the electronic control throttle motor. (Fix the throttle opening angle to 6°.)

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)
  1. Single malfunction: Control with normal sensor
  2. Multi malfunction: Fix the throttle opening angle to 6°.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)
  1. Single malfunction: Control with normal sensor
  2. Multi malfunction: Fix the throttle opening angle to 6°.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)
  1. Single malfunction: Control with normal sensor
  2. Multi malfunction: Fix the throttle opening angle to 6°.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)
  1. Single malfunction: Control with normal sensor
  2. Multi malfunction: Fix the throttle opening angle to 6°.

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed (Only engine stop)

Stop the continuity to ETC motor. (Fix the throttle opening angle to 6°.)

Always perform the diagnosis continuously.

  1. When the OK driving cycle was completed 3 times in a row
  2. When "Clear Memory" was performed

Fix the throttle opening angle to 6°.