Toyota Tundra (2015 year). Manual — part 1559
NOTICE:
When DTC P0420 is output, replace the front No. 2 exhaust pipe assembly when catalyst replacement is necessary. (Excluding
air fuel ratio sensor and heated oxygen sensor)
When DTC P0430 is output, replace the front exhaust pipe assembly when catalyst replacement is necessary. (Excluding air
fuel ratio sensor and heated oxygen sensor)
MONITOR STRATEGY
Related DTCs
P0420: Catalyst Deterioration (for Bank 1)
P0430: Catalyst Deterioration (for Bank 2)
Required Sensors/Components
(Main)
A/F sensor and HO2 sensor
Required Sensors/Components
(Related)
Intake air temperature sensor, mass air flow meter, crankshaft position sensor and engine
coolant temperature sensor
Duration
About 30 seconds
MIL Operation
2 driving cycles
TYPICAL ENABLING CONDITIONS
Monitor runs whenever
following DTCs not present
P0010, P0020 (Camshaft Timing Oil control valve)
P0011, P0021 (VVT System - Advance)
P0012, P0022 (VVT System - Retard)
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P043...
P0013, P0023 (Exhaust Camshaft Timing Oil control valve)
P0014, P0024 (Exhaust VVT System - Advance)
P0015, P0025 (Exhaust VVT System - Retard)
P0016, P0018 (VVT System - Misalignment)
P0017, P0019 (Exhaust VVT System - Misalignment)
P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater)
P0037, P0038, P0057, P0058, P102D, P105D (Rear oxygen sensor heater)
P0102, P0103 (Mass air flow meter)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)
P0125 (Insufficient coolant temperature for closed loop fuel control)
P0136, P0137, P0138, P0139, P0156, P0157, P0158, P0159, P0607 (Rear oxygen sensor)
P0171, P0172, P0174, P0175 (Fuel system)
P0301 - P0308 (Misfire)
P0335 (Crankshaft position sensor)
P1340 (Camshaft position sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)
P0351 - P0358 (Igniter)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)
P0412, P0415, P0418, P0419, P1613, P1614 (Secondary air injection system control)
P2440 - P2447 (Secondary air injection system)
P0500 (Vehicle speed sensor)
P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D, P2195, P2196, P2197, P2198, P2237,
P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255, P2256 (Air fuel ratio sensor)
Battery voltage
11 V or more
Intake air temperature
-10°C (14°F) or more
Engine coolant temperature
75°C (167°F) or more
Atmospheric pressure
76 kPa (570 mmHg) or more
Idling
OFF
Engine speed
Less than 3200 rpm
A/F sensor status
Activated
Fuel system status
Closed loop
Engine load
10 to 75%
-
(a) Mass air flow rate
7.5 to 75 gm/sec
(b) Estimated front catalyst
temperature
575 to 820°C (1067 to 1508°F)
(c) Estimated rear catalyst
temperature
400 to 700°C (752 to 1292°F)
Shift position
4th or higher
TYPICAL MALFUNCTION THRESHOLDS
MONITOR RESULT
Refer to CHECKING MONITOR STATUS
.
CONFIRMATION DRIVING PATTERN
HINT:
Performing this confirmation driving pattern will activate the catalyst efficiency monitor. This is very useful for verifying the
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON.
2.
Turn the Techstream on.
3.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4.
Turn the ignition switch off and wait for at least 30 seconds.
5.
Turn the ignition switch to ON and turn the Techstream on.
6.
Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor.
7.
Check that Catalyst Efficiency / Current is Incomplete.
8.
Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].
9.
Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [B].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Drive the vehicle while keeping the engine load as constant as possible.
10.
Turn the ignition switch off and wait for at least 30 seconds [C].
11.
Turn the ignition switch to ON and turn the Techstream on.
12.
Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [D].
13.
Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [E].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Drive the vehicle while keeping the engine load as constant as possible.
The monitor item will change to Complete as the Catalyst Efficiency monitor operates [F].
14.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
15.
Check if any DTCs (pending DTCs) are stored.
HINT:
If the monitor item does not change to Complete, and no pending DTCs are stored, perform the following
procedure.
16.
Drive the vehicle at a speed between 75 and 100 km/h (47 and 63 mph) for 10 minutes or more [G].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Drive the vehicle while keeping the engine load as constant as possible.
The monitor item will change to Complete as the Catalyst Efficiency monitor operates [H].
17.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
18.
Check if any DTCs (pending DTCs) are stored.
HINT:
If the monitor item does not change to Complete, and no pending DTCs are stored, extend the driving time.
19.
If no pending DTC is output, perform a universal trip and check for permanent DTCs
.
20.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P043...
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
CONDITIONING FOR SENSOR TESTING
HINT:
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up with all the accessories switched OFF until the engine coolant temperature stabilizes.
sensors using the Techstream.
HINT:
HINT:
Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F sensor function provided in the
Active Test. The Control the Injection Volume for A/F sensor function can help to determine whether the Air-Fuel Ratio (A/F)
sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P043...
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