Toyota Tundra (2015 year). Manual — part 1191
OK
OK
OK
OK:
PCV hose is connected correctly and is not damaged.
NG
REPAIR OR REPLACE PCV HOSE
3.
CHECK INTAKE SYSTEM
(a) Check the intake system for vacuum leak
.
OK:
No leak in intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system
.
NG
REPAIR OR REPLACE INTAKE SYSTEM
4.
INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (THROTTLE VALVE)
(a) Check for contamination between the throttle valve and housing, and check that the throttle valve
moves smoothly.
OK:
Throttle valve is not contaminated with foreign objects and moves smoothly.
HINT:
Perform "Inspection After Repair" after replacing the throttle with motor body assembly
.
NG
REPLACE THROTTLE WITH MOTOR BODY
ASSEMBLY
5.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0505; Idle Co...
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or
higher.
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
OK
GO TO STEP 7
NG
GO TO STEP 6
6.
INSPECT EGR VALVE ASSEMBLY
(a) Remove the EGR valve assembly
.
(b) Check if the EGR valve is stuck open.
OK:
EGR valve is tightly closed.
HINT:
Perform "Inspection After Repair" after repairing or replacing the EGR valve assembly
.
NG
REPLACE EGR VALVE ASSEMBLY
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0505; Idle Co...
OK
NEXT
7.
REPLACE ECM
(a) Replace the ECM
.
8.
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Turn the Techstream on.
(d) Clear the DTC
.
(e) Turn the ignition switch off.
(f) Turn the ignition switch ON and turn the Techstream on.
(g) Start the engine and warm it up.
(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving
Pattern.
(i) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
(j) Input the DTC: P0505.
(k) Check the DTC judgment result.
TECHSTREAM
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0505; Idle Co...
TECHSTREAM
DISPLAY
DESCRIPTION
N/A
Unable to perform DTC judgment
NEXT
END
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0505; Idle Co...
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