Contents Wiring diagrams Section: Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) All sections

FAIL SAFE Subaru Baja I

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.