Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO): Other Subaru Outback BP

GENERAL DRIVING CYCLE

Perform diagnosis continuously in 30 seconds after starting engine.

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. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
2. Rear oxygen (A/F) sensor sub learning correction: Not allowed to calculate
3. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0
4. Purge control: Not allowed to purge

Always perform diagnosis continuously.

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

FAILSAFE

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on heater
2. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
3. Rear oxygen (A/F) sensor sub learning correction: Not allowed to calculate
4. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0
5. Purge control: Not allowed to purge

Always perform 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 heater control: Not allowed to turn on heater
2. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
3. Rear oxygen (A/F) sensor sub learning correction: Not allowed to calculate
4. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0
5. Purge control: Not allowed to purge

Perform the diagnosis continuously after engine starting.

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.

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.

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 speed and throttle position When also throttle position is NG, adopt 66.7 kPa (500 mmHg, 19.69 inHg) as definite value.
2. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
3. Fuel cut control: Fuel cut will operate at engine high speed.
4. EVAP density learning (Fuel): Not allowed to learn
5. Knocking compensation

At normal condition: Self-learning ignition advance value = knock F/B advance + overall self-learning advance value + partial self-learning advance value

When malfunctioning: Self-learning ignition advance value = -6° CA (6° CA retard) knock F/B advance value = 0° CA

Prohibit overall self-learning

Partially prohibit self-learning

1. ISC control: Not allowed to calculate the amount of ISC feedback.

Amount of ISC open-loop compensation = Fixed at 6.82%

1. 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. Intake manifold pressure sensor process: Estimate the pressure from engine speed and throttle position.

When also throttle position is NG, adopt 66.7 kPa (500 mmHg, 19.69 inHg) as definite value.

1. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
2. Fuel cut control: Fuel cut will operate at engine high speed.
3. EVAP density learning (Fuel): Not allowed to learn
4. Knocking compensation

At normal condition: Self-learning ignition advance value = knock F/B advance + overall self-learning advance value + partial self-learning advance value

When malfunctioning: Self-learning ignition advance value = -6°CA (6°CA retard) knock F/B advance value = 0°CA

Prohibit overall self-learning

Partially prohibit self-learning

1. ISC control: Not allowed to calculate the amount of ISC feedback.

Amount of ISC open-loop compensation = Fixed at 6.82%

1. 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. Intake manifold pressure sensor process: Estimate the pressure from engine speed and throttle position.

When also throttle position is NG, adopt 66.7 kPa (500 mmHg, 19.69 inHg) as definite value.

1. Heavy fuel judgment: Not allowed to carry out the heavy judgment.
2. Fuel cut control: Fuel cut will operate at engine high speed.
3. EVAP density learning (Fuel): Not allowed to learn
4. Knocking compensation

At normal condition: Self-learning ignition advance value = knock F/B advance + overall self-learning advance value + partial self-learning advance value

When malfunctioning: Self-learning ignition advance value = -6°CA (6°CA retard) knock F/B advance value = 0°CA

Prohibit overall self-learning

Partially prohibit self-learning

1. ISC control: Not allowed to calculate the amount of ISC feedback.

Amount of ISC open-loop compensation = Fixed at 6.82%

1. Purge control: Not allowed to purge

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

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

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

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

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 coefficient at a high water temperature: The water temperature condition is disregarded and increased by approval of other condition, though usually increases by a high water temperature and approval of other condition.

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. 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 coefficient at a high water temperature: The water temperature condition is disregarded and increased by approval of other condition, though usually increases by a high water temperature and approval of other condition.

Perform the diagnosis continuously after idling.

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

Throttle position sensor process

1. Fix the throttle opening at 6.4°.
2. Fix the closed throttle position learning value at 0°.
3. ISC open loop compensation: Fix the amount of ISC open loop compensation at 6.82%.
4. ISC feedback compensation: Not allowed to calculate the amount of ISC feedback compensation.

Always perform the diagnosis continuously.

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

Throttle position sensor process

1. Fix the throttle opening at 6.4°.
2. Fix the closed throttle position learning value at 0°.
3. ISC open loop compensation: Fix the amount of ISC open loop compensation at 6.82%.
4. ISC feedback compensation: Not allowed to calculate the amount of ISC feedback compensation.

Always perform the diagnosis continuously.

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

Throttle position sensor process

1. Fix the throttle opening at 6.4°.
2. Fix the closed throttle position learning value at 0°.
3. ISC open loop compensation: Fix the amount of ISC open loop compensation at 6.82%.
4. ISC feedback compensation: Not allowed to calculate the amount of ISC feedback compensation.

Perform the diagnosis only once after engine starting.

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 coefficient at a high water temperature: The water temperature condition is disregarded and increased by approval of other condition, though usually increases by a high water temperature and approval of other condition.

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 once turning the ignition switch to ON.

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 1C communication: Not allowed to communicate
2. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
3. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0
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 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. Rear oxygen (A/F) sensor sub learning correction: Not allowed to calculate.
3. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0.
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 1C communication: Not allowed to communicate
2. Front oxygen (A/F) sensor main learning correction: Not allowed to calculate
3. Correction when re-starting at high temperature: Normally minimum value 0.06 --> 0.
4. Purge control: Not allowed to purge

Perform the diagnosis once after starting the engine.

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 starting the engine.

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 rapid acceleration. (Pay attention to oxygen sensor voltage for the timing of deceleration in order to calculate 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 idling after warm-up or at a constant vehicle speed.

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

Perform the diagnosis continuously idling after warm-up or at a constant vehicle speed.

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

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.

Always perform diagnosis continuously.

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

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

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

OFF setting may be needed depending on the NG portion.

1. The misfire is detected from idling to high engine revolution speed if the condition is matched. Perform the diagnosis continuously.

Scheme 2439

Then 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. 120° 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. FTP 1.5 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 crank-shaft 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 2440

1. 120° Interval Difference Method

Diagnosis value domg120 = (omg -1 omg 0) - (omg 7 - omg 1)/6

Judge misfire occurs in the following cases.

1. domg 120 > judgment value of positive side
2. domg 121 > judgment value of negative side

(judgment value before 120°CA)

Scheme 2441

1. 360° Interval Difference Method

Diagnosis value domg 360 = (omg 1 - omg 0) - (omg 4 - omg 3)

Misfire judgment domg 360 > judgment value --> Misfire occurs

Scheme 2442

1. 720° Interval Difference Method

Diagnosis value domg 720 = (omg 1 - omg 0) - (omg 7 - omg 6)

Misfire judgment domg 720 > judgment value --> Misfire occurs

Scheme 2443

1. FTP 1.5 times misfire (Misfire occurrence level affecting exhaust gas)
2. Judgment Value (Judge that malfunction occurs when the misfire ratio is high in 1000 engine revs.)

Scheme 2444

Time Needed for Diagnosis: 1000 engine revs.

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

1. Catalyst damage misfire (Misfire occurrence level damaging catalyst)
2. Judgment Value (Judge that malfunction occurs when the misfire ratio is high in 200 engine revs. 800 ignitions))

Scheme 2445

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

Scheme 2446

These figures mean the misfire ratio (%) in 600 ignitions; for example, 15 (%) means 600 (ignition) x 15 (%) = 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 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

1. Knocking compensation

At normal condition: Self-learning ignition advance value = knock F/B advance + overall self-learning advance value + partial self-learning advance value

When malfunctioning: Self-learning ignition advance value = -6°CA (6°CA retard)

knock F/B advance value = 0°CA

Prohibit overall self-learning

Partially prohibit self-learning

Always perform diagnosis continuously.

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

1. Knocking compensation

At normal condition: Self-learning ignition advance value = knock F/B advance + overall self-learning advance value + partial self-learning advance value

When malfunctioning: Self-learning ignition advance value = -6°CA (6°CA retard)

knock F/B advance value = 0°CA

Prohibit overall self-learning

Partially prohibit self-learning

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 under 3000 rpm engine speed.

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

None

Perform the diagnosis at idling continuously.

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

None

Perform the diagnosis only once at the fuel shut-off in deceleration in vehicle speed 49 km/h (approx. 30 1PH). Pay attention to vehicle speed and engine speed. (The diagnosis is not completed if vehicle speed and engine speed are out of condition due to deceleration.)

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

1. Decrease compensation when operating EGR operate
2. Front O 2 (A/F) sensor main learning compensation
3. Calculation of basic advance ignition timing
4. Knock learning compensation
5. ISC control
6. EGR control

Perform the diagnosis once at the constant vehicle speed more than 70 km/h (43 MPH).

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 2447

0.02-inch Diagnosis

Scheme 2448

0.04-inch Diagnosis

Perform the diagnosis only once in 843 seconds or more after starting the engine constantly at 32 km/h (19 MPH) or more.

Pay attention to the fuel temperature and fuel level.

0.02-inch Diagnosis

Perform the diagnosis in 335 seconds after starting the engine constantly at 68 km/h (42 MPH) or more, and perform OK/NG judgment.

If OK/NG judgment is not possible, repeat the diagnosis.

Pay attention to the fuel temperature and fuel level.

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

PCV control: Open the PCV solenoid.

Always perform the diagnosis continuously.

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.

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.

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.

Perform the diagnosis when purging.

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 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.

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

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

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 2449

Perform the diagnosis continuously when the radiator fan changes from OFF to ON when idling.

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.

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

1. Throttle position sensor signal process: Fix the all closed position learning value at 0°.
2. Vehicle speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
3. Fuel cut control: Vehicle speed = 0 km/h (0 MPH) / Not allowed to carry out the fuel cut.
4. ISC open loop compensation: Fix the open loop compensation at 6.82%
5. ISC feedback control: Not allowed to calculate the amount of ISC feedback.
6. Air conditioner control: Air conditioner cut signal is not allowed driving acceleration.
7. Radiator fan control: Both main and sub fan are in High driving.

Perform the diagnosis continuously during fuel cut in deceleration.

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

1. Throttle position sensor signal process: Fix the all closed position learning value at 0°.
2. Vehicle speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
3. Fuel cut control: Vehicle speed = 0 km/h (0 MPH) / Not allowed to carry out the fuel cut.
4. ISC open loop compensation: Fix the open loop compensation at 5%
5. ISC feedback control: Not allowed to calculate the amount of ISC feedback.
6. Air conditioner control: Air conditioner cut signal is not allowed driving acceleration.
7. Radiator fan control: Both main and sub fan are in High driving.

Always perform diagnosis during idling after warm-up

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

Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel.

4. GENERAL DRIVING CYCLE

Always perform diagnosis during idling after warm-up.

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

Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel.

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

1. Idle air control solenoid valve feedback correction: Not allowed to calculate ifb (idle air control solenoid valve feedback amount)
2. 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
3. Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel

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

1. Idle air control solenoid valve feedback correction: Not allowed to calculate ifb (idle air control solenoid valve feedback amount)
2. 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
3. Judgment of heavy fuel: Not allowed to make the judgment of heavy 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

None

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

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 diagnosis at vehicle speed 20 km/h (12.4 MPH) or less.

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.

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.

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.

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

None

Always perform the diagnosis continuously.

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

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

Control ATF temperature at a constant temperature 80°C (176°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

None

Always perform the diagnosis with more than 20 km/h (12 MPH) vehicle speed.

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

1. Use the normal vehicle speed sensor signal when either of them is normal.
2. Use the vehicle speed calculated from the current gear position and turbine speed when both front and rear wheels are troubled.

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

Always perform the diagnosis with less than 10 km/h (6 MPH) vehicle speed.

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

None

Always perform the diagnosis with less than 10 km/h (6 MPH) vehicle speeds.

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

None

Always perform the diagnosis with less than 10 km/h (6 MPH) vehicle speeds.

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

None

Always perform the diagnosis with less than 10 km/h (6 MPH) vehicle speeds.

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

Not allowed to lock up.

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

Always perform the diagnosis continuously.

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

Control the shift to be fixed in 3rd gear.

Always perform the diagnosis continuously.

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

Control the shift to be fixed in 3rd gear.

Always perform the diagnosis continuously.

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

Control the shift to be fixed in 3rd gear.

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

Always perform the diagnosis continuously.

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

Control the shift to be fixed in 3rd gear.

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 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

Perform diagnosis during the vehicle running.

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

None

Perform diagnosis during the vehicle running.

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

None

Perform diagnosis during the vehicle running.

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

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

Atmospheric pressure sensor process: Fix the atmospheric pressure to 101.3 kPa (760 mmHg, 29.9 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. A/F IC communication: Not allowed to communicate.
2. A/F main learning compensation: Not allowed to calculate.

1. Compensation at high temperature restart: Set min. value 0.06 rightarrow 0.
2. 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. Rear oxygen sensor sub learning correction: Not allowed to calculate.
3. Correction when re-starting at high temperature: Normally minimum value 0.06 rightarrow 0
4. 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. Rear oxygen sensor sub learning correction: Not allowed to calculate.
3. Correction when re-starting at high temperature: Normally minimum value 0.06 rightarrow 0
4. Purge control: Not allowed to purge

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.

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.

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.

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

None

Abnormality Judgment

Judge NG temporarily when the fuel tank pressure changes by 0.60 kPa (4.5 mmHg, 0.18 inHg) or more atmospheric pressure changing by 0.60 kPa (4.5 mmHg, 0.18 inHg) or more per 80 seconds, and then judge NG when the previous condition is completed 5 times in a row.

Scheme 2450

Scheme 2451

Scheme 2452

Perform the diagnosis continuously when the fuel tank pressure is large or small in 80 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 the diagnosis continuously.

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

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

AT torque down control is not allowed.

Always perform the diagnosis continuously.

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

AT torque down control is not allowed.

Always perform the diagnosis.

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

Make the throttle angle to 3/8, and the line pressure and 2-4B pressure to maximum.

Always perform the diagnosis.

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

None

Always perform the diagnosis.

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 a constant speed of more than 80 km/h (50 MPH).

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

None

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

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

None