Toyota Tundra (2015 year). Manual — part 1178
OK
NEXT
GO TO STEP 14
10.
CHECK EXHAUST GAS LEAK
(a) Check for exhaust gas leaks.
OK:
No gas leaks.
HINT:
Perform "Inspection After Repair" after repairing or replacing the exhaust system
.
NG
REPAIR OR REPLACE EXHAUST GAS LEAK POINT
11.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION)
(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
Steady idling
Idling changes from steady to rough idling or engine stall
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430; ...
OK
NEXT
-
EGR STEP POSITION (ACTIVE TEST)
0 STEPS
0 TO 30 STEPS
condition
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
CHECK CAUSE OF EXTREMELY RICH OR LEAN
ACTUAL AIR FUEL RATIO
NG
GO TO STEP 12
12.
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 replacing the EGR valve assembly
.
NG
REPLACE EGR VALVE ASSEMBLY
13.
CHECK CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO
.
14.
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
(a) Connect the Techstream to the DLC3.
(b) Clear the DTCs
.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430; ...
A
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON and turn the Techstream on.
(e) Start the engine and warm it up.
(f) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(g) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(h) Read the DTCs.
Result
RESULT
PROCEED TO
P0420 or P0430 is output
A
DTC is not output
B
B
END
15.
CHECK DTC OUTPUT (DTC P0420 AND/OR P0430)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(d) Read the DTCs.
Result
RESULT
PROCEED TO
P0420
A
P0430
B
P0420 and P0430
A and B
A
REPLACE FRONT NO. 2 EXHAUST PIPE ASSEMBLY
(TWC: FRONT CATALYST AND REAR CATALYST)
B
REPLACE FRONT EXHAUST PIPE ASSEMBLY (TWC:
FRONT CATALYST AND REAR CATALYST)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430; ...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002BHB08DX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043F,P2401,P2402,P2419; Evaporative
Emission System Leak Detection Reference Orifice Low Flow; 2015 MY Tundra [08/2014 - ]
DTC
P043E
Evaporative Emission System Leak Detection Reference Orifice Low Flow
DTC
P043F
Evaporative Emission System Leak Detection Reference Orifice High Flow
DTC
P2401
Evaporative Emission Leak Detection Pump Stuck OFF
DTC
P2402
Evaporative Emission Leak Detection Pump Stuck ON
DTC
P2419
Evaporative Emission Pressure Switching Valve Stuck ON
DTC SUMMARY
DTC
NO.
MONITORING
ITEM
MALFUNCTION DETECTION
CONDITION
TROUBLE AREA
DETECTION
TIMING
DETECTION
LOGIC
P043E
Reference
orifice clogged
P043E, P043F, P2401,
P2402 and P2419 present
key-off EVAP monitor:
Reference orifice
clogged
Reference orifice
high-flow
Leak detection
pump OFF
malfunction
Leak detection
pump ON
malfunction
Vent valve ON
(closed)
malfunction
Canister pump
module (Reference
orifice, leak
detection pump,
vent valve)
Connector/wire
harness (Canister
pump module -
ECM)
EVAP system hose
(pipe from air inlet
port to canister
pump module,
canister filter, fuel
tank vent hose)
ECM
While
ignition
switch off
2 trip
P043F
Reference
orifice
high-flow
P2401
Leak detection
pump stuck
OFF
P2402
Leak detection
pump stuck
ON
P2419
Vent valve
stuck closed
HINT:
The reference orifice is located inside the canister pump module.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043F,...
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