Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO): Other Subaru Outback BP рестайлинг

LIST

DIAGNOSTIC TROUBLE CODE LIST

Normal

VARIABLE VALVE LIFT DIAGNOSIS OIL PRESSURE SWITCH POSITION

Low NG

When the variable valve lift diagnosis oil pressure switch remains OFF even though the intake valve tried to enter high mode (oil switching solenoid valve duty is large), this is judged as a Low NG.

High NG

When the variable valve lift diagnosis oil pressure switch remains ON even though the intake valve tried to enter low mode (oil switching solenoid valve duty is small), this is judged as a High NG.

ENABLE CONDITION

ENABLE CONDITION

GENERAL DRIVING CYCLE

Perform the diagnosis continuously 6 seconds after engine start while variable valve lift is being controlled.

Abnormality Judgment

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis

TIME NEEDED FOR DIAGNOSIS

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

Normality Judgment

Judge as OK and clear the NG if the duration of time while the following criteria are met is 3 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS

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

FAIL SAFE

None

ENABLE CONDITION

Perform the diagnosis continuously after 50 seconds or more have passed since the engine started.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 seconds

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

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. Front oxygen (A/F) sensor sub learning compensation: Not allowed to calculate.
3. Purge control: Not allowed to purge.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the duration of time while the following criteria are met is 1 second (8 cycles) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on the heater.
2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
3. A/F sub learning: Not allowed to calculate the A/F sub learning compensation factor.
4. Purge control: Not allowed to purge.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the duration of time while the following criteria are met is 1 second (8 cycles) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on the heater.
2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
3. A/F sub learning: Not allowed to calculate the A/F sub learning compensation factor.
4. Purge control: Not allowed to purge.

ENABLE CONDITION

Perform the diagnosis continuously after starting the engine.

Judge as NG if the duration of time while the following criteria are met is 2560 milliseconds (10 cycles) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.56 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Sub feedback control: Not allowed

ENABLE CONDITION

Perform the diagnosis continuously after starting the engine.

Judge as NG if the duration of time while the following criteria are met is 2560 milliseconds (10 cycles) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.56 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Sub feedback control: Not allowed

ENABLE CONDITION

Perform the diagnosis continuously after idling.

Judge as NG when either Low side or High side becomes NG.

Judge as NG if the continuous time while the following criteria are met exceeds the determined time.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 3 seconds for low side, 7 seconds for high side

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

Judge as OK and clear the NG when both Low side and High side become OK.

Judge as OK when the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the following conditions is 2 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2 seconds

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

Judge as OK and clear the NG when the continuous time of meeting the following conditions is 2 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the following conditions is 2 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2 seconds

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

Judge as OK and clear the NG when the continuous time of meeting the following conditions is 2 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform the diagnosis continuously after idling.

Judge as NG if the continuous time while the following criteria are met exceeds the determined time.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis

TIME NEEDED FOR DIAGNOSIS

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

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

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

ENABLE CONDITION

Perform the diagnosis when the vehicle speed condition is met after warming up from a cold condition.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 1 second or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 0.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 0.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

1. Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70°C (158°F)
2. ISC Feedback: Calculate target engine speed as engine coolant temperature 70°C (158°F).
3. ISC learning: Not allowed to learn.
4. Air conditioner control: Not allowed to turn the air conditioner to ON.
5. Radiator fan control: Both main and sub fan turn to ON.

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

1. Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70°C (158°F)
2. ISC Feedback: Calculate target engine speed as engine coolant temperature 70°C (158°F).
3. ISC learning: Not allowed to learn.
4. Air conditioner control: Not allowed to turn the air conditioner to ON.
5. Radiator fan control: Both main and sub fan turn to ON.

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 24 milliseconds

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 24 milliseconds

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

Perform the diagnosis only once after engine start.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Timer for diagnosis after engine start

1. Timer stop at fuel cut
2. During the driving conditions except a) above, timer counts up as follows.

64 milliseconds + TWCNT milliseconds (the time of at 64 milliseconds)

TWCNT is defined as follows

TWCNT = 0 at idle switch ON

TWCNT show on the following table at idle switch OFF.

VEHICLE SPEED AND TEMPERATURE SPECIFICATION

Judgment value of timer after engine starting

t = 574 - 33 x Ti (seconds)

Ti: The lowest coolant temperature after engine start

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.

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70°C (158°F)
2. ISC Feedback: Calculate target engine speed as engine coolant temperature 70°C (158°F).
3. ISC learning: Not allowed to learn.
4. Air conditioner control: Not allowed to turn the air conditioner to ON.
5. Radiator fan control: Both main and sub fan turn to ON.

ENABLE CONDITION

Perform the diagnosis only once after starting the engine.

Judge as NG if the continuous time of meeting the following conditions is 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

When the following conditions are established, judged as OK.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: Not fixed

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

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

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on heater.
2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
3. A/F sub learning: Not allowed to calculate the A/F sub learning compensation factor.
4. Purge control: Not allowed to purge.

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

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

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on heater.
2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
3. A/F sub learning: Not allowed to calculate the A/F sub learning compensation factor.
4. Purge control: Not allowed to purge.

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 210 seconds

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

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. A/F sensor sub learning compensation: Not allowed to calculate.
3. Purge control: Not allowed to purge.

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 5 seconds

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

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

1. Front oxygen (A/F) sensor heater control: Not allowed to turn on heater.
2. A/F main learning: Not allowed to calculate the A/F main learning compensation factor.
3. A/F sub learning: Not allowed to calculate the A/F sub learning compensation factor.
4. Purge control: Not allowed to purge.

Used for Abnormality Judgment

ENABLE CONDITION

Used for normality judgment

ENABLE CONDITION

After starting the engine, continuously perform the diagnosis with the same engine condition.

Judge as NG if the continuous time during which the following conditions are established exceeds the predetermined time, and judge as OK if it does not.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Map

TIME NEEDED FOR DIAGNOSIS

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

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

Sub feedback control: Not allowed

Rich --> lean diagnosis response

ENABLE CONDITION

Perform the diagnosis only once when deceleration fuel cut occurs after rapid acceleration. (Pay attention to the oxygen sensor voltage for the timing of the deceleration.)

1. Judge as NG when the judgment value is larger than the threshold value after deceleration fuel cut. Response time (diagnosis value) > threshold value --> abnormal NOTE: Variation time of rear oxygen sensor output voltage is short during fuel cut in deceleration. NG judgment should be performed after deceleration fuel cut. Even without deceleration fuel cut, judge as OK if the value is below the threshold. When the deceleration fuel cut time is 6 seconds or more, judge as NG if the following criteria are met 2 seconds after recovering from the deceleration fuel cut.
2. Judge as NG when the oxygen sensor voltage at recovery from a deceleration fuel cut, is large. If the fuel cut time in a deceleration fuel cut is long (6 s or more), and even after recovering from a deceleration fuel cut, the oxygen sensor voltage is high (0.55 V or more), judge as NG.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 time

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

1. Regardless of a deceleration fuel cut, if the response time (diagnosis value) when the oxygen sensor voltage has changed from rich to lean is shorter than the threshold value (judgment value), judge as a normal condition. Response time (diagnosis value) < threshold value --> normal
2. Do not judge as a normal condition. Judge as OK when the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Sub feedback control: Not allowed

Lean --> rich response diagnosis

ENABLE CONDITION

Perform the diagnosis only once when deceleration fuel cut occurs after rapid acceleration. (Pay attention to the oxygen sensor voltage for the timing of the deceleration.)

1. Judge as NG when the judgment value is larger than the threshold value after deceleration fuel cut. Response time (diagnosis value) > threshold value --> abnormal
2. If the oxygen sensor voltage is small after recovering from a deceleration fuel cut, and remains small, judge as NG.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 time

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

1. Regardless of a deceleration fuel cut, if the response time (diagnosis value) when the oxygen sensor voltage has changed from rich to lean is shorter than the threshold value (judgment value), judge as a normal condition. Response time (diagnosis value) < or = threshold value --> normal
2. Do not judge as a normal condition. Judge as OK when the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Sub feedback control: Not allowed

ENABLE CONDITION

Perform the diagnosis only once after engine warm-up.

If one of the following conditions are met, judge as NG.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 200 seconds

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

When the following conditions are established, judged as OK.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Sub feedback control: Not allowed

1. Lean side

ENABLE CONDITION

Map 5

ENGINE SPEED AND MEASURED VALUE SPECIFICATION

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

Compare the diagnosed value (fsobd) with the threshold value, and if a condition meeting the malfunction criteria below continues for 50 seconds or more, judge that there is a fault in the fuel system.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Map 4 Threshold value for fuel system malfunction criteria

MAP 4 THRESHOLD VALUE FOR FUEL SYSTEM MALFUNCTION CRITERIA

Time Needed for Diagnosis: 10 seconds x 5 times

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

Judge as OK when the malfunction criteria below are met for 10 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

1. When similar driving conditions are repeated 3 times and the result is OK.
2. When "Clear Memory" is performed

None

ENABLE CONDITION

ENGINE SPEED AND MEASURED VALUE SPECIFICATION

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

Compare the diagnosed value (fsobd) with the threshold value, and if a condition where the malfunction criteria are met continues for 50 seconds or more, judge that there is a fault in the fuel system.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Map 4 Threshold value for fuel system malfunction criteria

MAP 4 THRESHOLD VALUE FOR FUEL SYSTEM MALFUNCTION CRITERIA

Time Needed for Diagnosis: 10 seconds x 5 times

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

Judge as OK when the malfunction criteria below continues for 10 seconds.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

1. When similar driving conditions are repeated 3 times and the result is OK.
2. When "Clear Memory" is performed

Purge control solenoid valve control: Not allowed to purge.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 120 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 120 seconds

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

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

ENABLE CONDITION

Always perform diagnosis after 20 seconds have passed since the engine started.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: Undetermined

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

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform the diagnosis continuously after starting the engine.

If the following conditions are met, judge as NG.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

After engine start oil temperature sensor characteristic diagnosis timer (timer for diagnosis).

1. Timer stop at fuel cut
2. During the driving conditions except a) above, timer counts up as follows.

64 milliseconds + TOILCNT milliseconds (at the time of 64 milliseconds).

Where, TOILCNT is determined as follows

TOILCNT = 0 at idle switch ON

For TOILCNT at Idle switch off, refer to the following table.

TEMPERATURE SPECIFICATION

After engine start oil temperature characteristic diagnosis timer judgment value (t).

t = 1882940 - 43302 x Ti (t > or = 1882940)

Ti = The lowest coolant temperature after starting the engine.

Time Needed for Diagnosis: Undetermined

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

When the following conditions are established, judged as OK.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 0.5 seconds

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

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

Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 24 milliseconds

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 24 milliseconds

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

Map 3

MT (Vehicle speed < 64.4 km/h (40 MPH))

VEHICLE SPEED AND PRESSURE SPECIFICATION (MT)

MT (Vehicle speed > or = 64.4 km/h (40 MPH))

VEHICLE SPEED AND PRESSURE SPECIFICATION (MT)

AT (except for U5 model)

VEHICLE SPEED AND PRESSURE SPECIFICATION - AT (EXCEPT FOR U5 MODEL)

AT (U5 model)

VEHICLE SPEED AND PRESSURE SPECIFICATION - AT (U5 MODEL)

1. Detect misfires from idling to high rpm.
2. Perform the diagnosis continuously.

U5 model

MAP 1 FAULT CRITERIA THRESHOLD VALUE FOR MISFIRE (U5 MODEL)

Except for U5

MAP 1 FAULT CRITERIA THRESHOLD VALUE FOR MISFIRE (EXCEPT FOR U5)

Time Needed for Diagnosis: 200 engine revs.

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

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 1 second or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 1 second or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 3 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 3 seconds

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

Judge as OK when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform the diagnosis continuously under 4000 rpm engine speed.

Judge as NG if the following criteria are met continuously 10 times or more in a row.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 engine revs.

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the following malfunction criteria continues for 8 engine revolutions or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 8 engine revs.

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

Judge as OK and clear the NG when the following criteria are established.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously at idle speed.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 engine revs.

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

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

None

ENABLE CONDITION

During deceleration fuel cut from 53 km/h (approx. 33 MPH) or more, perform diagnosis once.

Be careful of vehicle speed and engine speed. (Diagnosis will not be completed if the vehicle speed and engine speed conditions become out of specification due to deceleration.)

Judge as NG when the following conditions are established, and judge as OK when not.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 time

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

Scheme 92

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

A/F main learning = Not allowed.

Knock learning = Not allowed.

EGR control: Operation prohibited.

ENABLE CONDITION

Map 2

Add the following value every 512 milliseconds.

MAP 2 THRESHOLD VALUE (U5 MODEL)

Perform the diagnosis only once at a constant speed of 70 km/h (43 MPH).

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 30 - 55 seconds

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

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

None

Pressure control solenoid valve

PCV controls the fuel tank pressure to be equal to the atmospheric air pressure. Normally, the solenoid is set to OFF. The valve opens and closes mechanically in accordance with the pressure difference between tank and atmospheric air, or tank and canister.

The valve is forcibly opened by setting the solenoid to ON at the time of diagnosis.

Scheme 93

FUEL LEVEL SPECIFICATION

Purpose of Mode Z

When performing the leakage diagnosis of EVAP system, the purge control solenoid valve must operate normally. Therefore, mode Z is used to diagnose the purge control solenoid valve stuck open condition. Note that if a purge control solenoid valve stuck open fault is detected, the EVAP system leakage diagnosis is cancelled.

Judge as OK and change to Mode A when the criteria below are completed in 3 seconds after Mode Z started.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Scheme 94

evptez - evptezha < or = 0.4 kPa (3.0 mmHg, 0.12 inHg)

Normal when above is established

If OK judgment cannot be made, extend Mode Z 16 seconds more, and Judge as NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 16 seconds

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

When judgment for purge control solenoid valve stuck open NG is made, end the evaporative diagnosis. Cancel the evaporative diagnosis when the OK/NG judgment for purge control solenoid valve stuck open cannot be made in Mode Z.

Scheme 95

1. evptezini, evptez < or = 1.43 kPa (10.7 mmHg, 0.42 inHg)
2. evptez - evptezha < or = 0.6 kPa (4.5 mmHg, 0.18 inHg)
3. No fuel sloshing of over 2 l (0.53 US gal, 0.44 Imp gal) lasts for more than 40 seconds. Judge as normal when all are established.

Judge as NG (large leak) when the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Mode C: (Check pressure rise)

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.

TANK PRESSURE SPECIFICATION

Mode D: (Measure amount of negative pressure change)

Monitor the tank pressure change amount when using mode D. In this case, the tank pressure increases, (nears barometric pressure) because evaporation occurs. 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 a small leak diagnosis according to the items below.

When Mode D is ended

Assign tank variations measured in Mode A and Mode D, P1 and P2, to the formula below, judge small leaks in the system. If the measured judgment value exceeds the threshold value, it is judged to be a malfunction.

Judge as NG when the criteria below are met and judge as OK when not met, and clear NG.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Map 7 Malfunction criteria limit for evaporation diagnosis

MAP 7 MALFUNCTION CRITERIA LIMIT FOR EVAPORATION DIAGNOSIS

Time Needed for Diagnosis: 30 - 100 seconds

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

Mode A: (0 point compensation)

When the pressure in the tank is high, wait until it returns to 0 point (Near 0 mmHg). Shift to mode B when returned to the 0 point. Cancel the diagnosis when 0 point does not return in the specified time.

Mode B: (Negative pressure introduced)

Introduce negative pressure in the intake manifold to the tank.

Approximately 0 --> -2.0 kPa (0 --> -15 mmHg, 0 --> -0.59 inHg)

When the pressure above (desired negative pressure) is reached, enters Mode C.

When the tank internal pressure does not reach the target negative pressure, the diagnosis is cancelled.

Mode C: (Negative pressure maintained)

Stop the introduction of negative pressure. (Wait until the tank pressure returns to the start level of P2 calculation.)

Change to Mode D either when the tank pressure returns to the start level of P2 calculation, or when the predetermined amount of time has passed.

Mode D: (Calculate the amount of negative pressure change)

Monitor the tank pressure in mode D, calculate (P2) the pressure change in the tank, and measure the time (evpdset) for the tank pressure to return when calculation of P2 is completed. Change to Mode E when the tank pressure returns to the end level of P2 calculation. If it does not return to the P2 calculation end tank internal pressure after the predetermined amount of time has passed, make advanced OK judgment or cancel the diagnosis.

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Mode E: (Evaporation occurrence amount calculation)

Calculate the change of tank pressure with the time evpdset to judge as NG/OK according to the value of P1. (ambiguous determination acceptable).

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Pressure control solenoid valve control: Open the pressure control solenoid valve.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Pressure control solenoid valve control: Open the pressure control solenoid valve.

ENABLE CONDITION

1. Perform the diagnosis continuously after 60 seconds or more have passed since the engine started.
2. Be sure to check the fuel level and fuel temperature.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

If the maximum value - minimum value for the fuel level every seconds is less than 2 liters, extend 60 seconds and make judgment with the maximum and minimum values for the fuel level in 120 seconds. If a difference does not appear though the time was extended 60 seconds, extend the time (180,240,300 seconds) and continue the judgment. If the maximum value - minimum value for the fuel level is 2 l or more, the diagnosis counter counts up.

Time Needed for Diagnosis: 1 minute x 16 times or more

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 15 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 15 seconds

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

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Perform the diagnosis continually when purging.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 15 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 15 seconds

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

Judge as OK if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

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

ENABLE CONDITION

Always perform the diagnosis after starting the engine.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis after starting the engine.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: Undetermined

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of completing the malfunction criteria below exceeds the time needed for diagnosis (1 second).

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 second

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

1. Always perform the diagnosis continuously at idle speed.
2. Pay attention to the fuel level.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

The diagnosis counter does not count up when the following conditions are completed within 12.2 seconds.

TANK PRESSURE AND VOLTAGE SPECIFICATION

Time Needed for Diagnosis: 12.2 seconds x 4 times

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

Diagnostic enable condition is established if the radiator fan changes from OFF --> ON when all of the conditions below are met.

When one of the conditions below is not met, the diagnostic enable condition is not established.

ENABLE CONDITION

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

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 5 minutes or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 5 minutes

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform the diagnosis continuously after 2 seconds or more have passed since the engine started.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when all of the following criteria are established.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Accelerator sensor signal process: Not allowed fully closed point learning. (Hold previous value)
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 vehicle speed condition and engine speed, but perform the fuel cut only on engine speed condition (4,400 rpm or more).
4. ISC control: Open loop compensation is set 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: Both main and sub fan ON
7. Gear ratio judgment: Control as fixed in sixth gear

ENABLE CONDITION

Perform the diagnosis continuously at idling after warming up engine.

Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds x 3 times.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 seconds x 3 times

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

Judge as OK and clear the NG when the continuous time of meeting the malfunction criteria below becomes the time needed for diagnosis (10 seconds) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform the diagnosis continuously at idling after warming up engine.

Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds x 3 times.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 seconds x 3 times

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

Judge as OK and clear the NG when the continuous time of meeting the malfunction criteria below becomes the time needed for diagnosis (10 seconds) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as ON NG when the continuous time of meeting the malfunction criteria below becomes 3 minutes or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 180 seconds

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

Judge as ON OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

When starting the engine.

Perform the diagnosis only after starting the engine.

ENABLE CONDITION

Perform the diagnosis continuously if the vehicle speed is at less than 4 km/h (2.49 MPH).

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2 seconds

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

Judge as OK and clear the NG when the continuous time of meeting all the malfunction criteria below becomes the time needed for diagnosis (5 seconds) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Fuel cut: Cuts off fuel only #1 and #2 cylinders, or for all cylinders according to vehicle speed, engine speed, and throttle position.

ENABLE CONDITION

Perform the diagnosis continuously after starting the engine.

When any one of the following conditions are established, judge as NG.

Judge as OK and clear the NG when the continuous time of meeting the following all criteria is the predetermined time (1 s) or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1 time

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

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

None

ENABLE CONDITION

Diagnosis with the initial routine.

Perform the diagnosis as soon as the ignition switch is turned to ON.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: Undetermined

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: Undetermined

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

(1) - (4): Always perform the diagnosis continuously.

(5): Always perform the diagnosis continuously when idling.

(6): Perform the diagnosis when the brake pedal is depressed.

(7): Always perform the diagnosis continuously.

(8): Always perform the diagnosis continuously when the cruise control pedal is not operating.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis

1. 600 milliseconds
2. 830 milliseconds
3. 200 milliseconds
4. 200 milliseconds
5. 24 milliseconds
6. 250 milliseconds
7. 200 milliseconds

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis

1. Target opening angle and actual opening angle: 250 milliseconds (For NG) 2000 milliseconds (For OK)
2. Output duty to drive circuit: 2000 milliseconds

Scheme 96

Details of Judgment time (The actual opening angle < or = target opening angle is always 1000 milliseconds)

Scheme 97

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

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

Stop the continuity to the electronic throttle control motor. (Throttle opening is fixed to 6°.)

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

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

None

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 6.4 seconds

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

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

Control of cruise control: Control prohibited

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 3 monitorings

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

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

Control of cruise control: Control prohibited

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 6.4 seconds

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

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

Control of cruise control: Control prohibited

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 3 monitorings

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

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

Control of cruise control: Control prohibited

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 seconds

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

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. Front oxygen (A/F) sensor sub learning compensation: Not allowed to calculate.
3. Purge control: Not allowed to purge.

ENABLE CONDITION

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

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 10 seconds

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

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. Front oxygen (A/F) sensor sub learning compensation: Not allowed to calculate.
3. Purge control: Not allowed to purge.

ENABLE CONDITION

1. Ignition switch ON --> OFF
2. Ignition switch OFF --> ON (Only after clearing memory)

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 1880 milliseconds

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

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

Throttle opening is fixed to 6°.

ENABLE CONDITION

Always perform the diagnosis after starting the engine.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

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

None

ENABLE CONDITION

Always perform the diagnosis after starting the engine.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

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

None

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 3 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 3 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

Pressure control solenoid valve control: Open the pressure control solenoid valve.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG when the continuous time of meeting the malfunction criteria below becomes 2.5 seconds or more.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

If the following conditions are established after predetermined amount of time has passed, judged as OK.

Judge as OK and clear the NG when the following criteria are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

None

ENABLE CONDITION

Perform diagnosis continuously during EGR operation.

Judge as NG if the continuous time while the following criteria are met exceeds the determined time.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. Knock sensor learning compensation: Calculation prohibited.
3. EGR control: Operation prohibited.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as NG if the continuous time while the following criteria are met exceeds the determined time.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 2.5 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

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

1. Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
2. Knock sensor learning compensation: Calculation prohibited.
3. EGR control: Operation prohibited.

ENABLE CONDITION

Always perform the diagnosis continuously.

Judge as OFF NG when the malfunction criteria below are met.

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Time Needed for Diagnosis: 800 milliseconds

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

Judge as OFF OK and clear the NG when the malfunction criteria below are met.