Toyota Tundra (2015 year). Manual — part 1540
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...
CONFIRMATION DRIVING PATTERN
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON.
2.
Turn the Techstream on.
3.
Record the DTC(s) and freeze frame data.
4.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
5.
Using the Techstream, switch the ECM from normal mode to check mode
.
6.
7.
Drive the vehicle several times with the conditions, such as engine speed and engine load, shown
in Misfire RPM and Misfire Load in the Data List.
8.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...
HINT:
ENGINE SPEED
DURATION
Idling
8.0 minutes or more
1000
4.5 minutes or more
2000
2.5 minutes or more
3000
1.5 minute or more
Check whether misfires have occurred by checking DTCs and freeze frame data.
HINT:
Do not turn the ignition switch off until the stored DTCs and freeze frame data have been
recorded. When the ECM returns to normal mode (default), the stored DTC, freeze frame
data and other data will be erased.
9.
Record the DTC(s), freeze frame data and misfire counts.
10.
Turn the ignition switch off and wait for at least 15 seconds.
11.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
12.
INSPECTION PROCEDURE
HINT:
a.
Improper fuel is used.
b.
The spark plugs are dirty.
c.
After finishing repairs, check that no misfires occur in each cylinder (No. 1, No. 2, No. 3, No. 4, No. 5,
No. 6, No. 7 and No. 8 cylinder).
Be sure to confirm that no misfiring cylinder DTCs are stored again by conducting the confirmation
driving pattern, after the repairs.
For 6 and 8 cylinder engines, the ECM intentionally does not store the specific misfiring cylinder DTCs at
high engine speeds. If misfires only occur during high engine speed driving, only DTC P0300 is stored.
.
a.
Start the engine and conduct the confirmation driving pattern.
b.
Repair the cylinder(s) that has a high misfiring rate or is indicated by the DTC.
d.
After finishing repairs, conduct the confirmation driving pattern again, in order to verify that
DTC P0300 is not stored.
e.
With the alcohol concentration learned value, Long FT and Short FT in the freeze frame data, it is
possible to determine the actual A/F deviation when a malfunction occurs.
When the Coolant Temp in the freeze frame data is less than 75°C (167°F), the misfires occurred only
while warming up the engine.
An extremely imbalanced drive wheel, which causes body vibration, may cause misfire DTCs detection.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...
A
PROCEDURE
1.
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE CODES)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read DTCs.
Result
RESULT
PROCEED
TO
P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 are output
A
P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 and other DTCs are
output
B
HINT:
If any DTCs other than P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and P0308 are
output, troubleshoot those DTCs first.
B
GO TO DTC CHART
2.
CHECK FREEZE FRAME DATA AND DATA LIST
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine and ECT / Data List / Short FT #1 or #2 and
Long FT #1 or #2.
Result
SHORT FT + LONG FT
PROCEED TO
FREEZE FRAME DATA
DATA LIST
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст