Toyota Tundra (2015 year). Manual — part 1194
OK
(a) Operate the VVT system through the Active test, and check if the VVT system is operating normally.
(1) Perform the Active Test, referring to DTC P0011 inspection procedure (VVT system for intake side)
.
(2) Perform the Active Test, referring to DTC P0014 inspection procedure (VVT system for exhaust
side)
.
NG
GO TO STEP 18
13.
READ VALUE USING TECHSTREAM (MAF)
(a) Connect the Techstream to the DLC3.
(b) Start the engine and turn the Techstream on.
(c) Enter the following menus: Powertrain / Engine and ECT / Data List / MAF and Coolant Temp.
(d) Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher.
(e) Read MAF with the engine speed at 3000 rpm.
Standard:
Between 18.3 gm/sec. and 25.8 gm/sec. (shift lever: N; A/C: Off)
OK
GO TO STEP 19
NG
GO TO STEP 20
14.
REPAIR OR REPLACE PCV HOSE
(a) Repair or replace the PCV hose.
NEXT
GO TO STEP 19
15.
REPAIR OR REPLACE INTAKE SYSTEM
(a) Repair or replace the intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system
.
NEXT
GO TO STEP 19
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P050A; Cold S...
NEXT
16.
REPLACE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Replace the air cleaner filter element sub-assembly.
NEXT
GO TO STEP 19
17.
REPLACE EGR VALVE ASSEMBLY
(a) Replace the EGR valve assembly
.
HINT:
Perform "Inspection After Repair" after repairing or replacing the EGR valve assembly
.
NEXT
GO TO STEP 19
18.
CHECK AND REPAIR VVT SYSTEM
(a) Check and repair the VVT system.
HINT:
Refer to DTC P0011 Inspection Procedure (VVT system for intake camshaft)
.
Refer to DTC P0014 Inspection Procedure (VVT system for exhaust camshaft)
.
19.
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
NOTICE:
In this operation, the engine must be cold (the same level as the engine coolant temperature recorded in
the freeze frame data).
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs
.
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Turn the ignition switch to ON and turn the Techstream on.
(g) Start the engine and warm it up.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P050A; Cold S...
NEXT
(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: P050A.
(k) Check the DTC judgment result.
Result
RESULT
PROCEED TO
NORMAL
(DTC is not output)
A
ABNORMAL
(DTC P050A is output)
B
B
GO TO STEP 20
A
CHECK FOR INTERMITTENT PROBLEMS
20.
CHECK HARNESS AND CONNECTOR
.
HINT:
Repair any problems.
21.
CHECK WHETHER DTC OUTPUT RECURS
NOTICE:
In this operation, the engine must be cold (the same level as the engine coolant temperature recorded in
the freeze frame data).
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs
.
(e) Turn the ignition switch off and wait for at least 30 seconds.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P050A; Cold S...
A
(f) Turn the ignition switch to 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: P050A.
(k) Check the DTC judgment result.
Result
RESULT
PROCEED TO
ABNORMAL
(DTC P050A is output)
A
NORMAL
(DTC is not output)
B
B
END
22.
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM)
(a) Disconnect the MAF meter connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED
CONDITION
D7-3 (VG) - D74-74 (VG)
Always
Below 1 Ω
D7-2 (E2G) - D74-75 (E2G)
Always
Below 1 Ω
D7-3 (VG) or D74-74 (VG) - Body
ground
Always
10 kΩ or higher
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P050A; Cold S...
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