Toyota Tundra (2015 year). Manual — part 1230
OK
OK
HINT:
When performing the Active Test, make sure the shift lever is in P or N.
The A/C switch and all accessory switches should be off.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step
Position.
(e) Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the
Data List while performing the Active Test.
HINT:
Do not leave the EGR valve open for 10 seconds or more during the Active Test.
Be sure to return the EGR valve to step 0 when the Active Test is completed.
OK:
MAP and idling condition change in response to EGR step position as follows.
Standard
-
EGR STEP POSITION (ACTIVE TEST)
0 STEPS
0 TO 30 STEPS
Idling
condition
Steady idling
Idling changes from steady to rough idling or engine stall
MAP
(Data List)
20 to 40 kPa (150 to 300
mmHg)
MAP value is at least +10 kPa (75 mmHg) higher than when EGR
valve is fully closed
NG
GO TO STEP 62
61.
INSPECT EGR VALVE ASSEMBLY
(a) Remove the EGR valve assembly
.
(b) Check if the EGR valve assembly is stuck open.
OK:
EGR valve is tightly closed.
HINT:
Perform "Inspection After Repair" after replacing the EGR valve assembly
.
NG
REPLACE EGR VALVE ASSEMBLY
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
OK
62.
READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were
present when the DTC was stored
.
Result
FREEZE FRAME DATA ITEM FOR DTC P1605
SUSPECTED AREA
PROCEED
TO
IGN ADVANCE
KNOCK CORRECT
LEARN VALUE
Less than 3°
Engine coolant
temperature sensor
Mass air flow meter
Knock sensor
A
3° or more
-
B
-
-
B
CHECK FOR INTERMITTENT PROBLEMS
63.
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
HINT:
For the engine coolant temperature sensor inspection, refer to the following procedures
.
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor
.
NG
REPLACE ENGINE COOLANT TEMPERATURE
SENSOR
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
OK
64.
CHECK HARNESS AND CONNECTOR (ECM - ENGINE COOLANT TEMPERATURE SENSOR)
(a) Disconnect the ECM connector.
(b) Disconnect the engine coolant temperature sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D74-76 (THW) - D28-2
Always
Below 1 Ω
D74-98 (E2) - D28-1
Always
Below 1 Ω
D74-76 (THW) or D28-2 - Body ground
Always
10 kΩ or higher
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
65.
INSPECT MASS AIR FLOW METER (INTAKE AIR TEMPERATURE SENSOR)
(a) Inspect the mass air flow meter
.
HINT:
If the intake air temperature sent to the ECM is higher than the standard due to the mass air flow meter
(intake air temperature sensor) malfunctioning, the ignition timing may become delayed.
Perform "Inspection After Repair" after replacing the mass air flow meter
.
NG
REPLACE MASS AIR FLOW METER
66.
READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
(b) Start the engine and warm it up until the engine coolant temperature stabilizes.
HINT:
The A/C switch and all accessory switches should be off.
(c) Idle the engine.
Result
FREEZE FRAME DATA ITEM FOR DTC P1605
PROCEED TO
IGN ADVANCE
KNOCK CORRECT LEARN VALUE
A
3° or more
B
HINT:
B
END
A
CHECK KNOCK SENSOR CIRCUIT
67.
CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)
(a) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure
.
HINT:
REPAIR FUEL INJECTOR POWER SOURCE CIRCUIT
68.
CHECK IGNITION SYSTEM
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст