Toyota Tundra (2015 year). Manual — part 1930
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000TMD0DXX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430; Catalyst System Efficiency Below
Threshold (Bank 1); 2015 MY Tundra [08/2014 - ]
DTC
P0420
Catalyst System Efficiency Below Threshold (Bank 1)
DTC
P0430
Catalyst System Efficiency Below Threshold (Bank 2)
MONITOR DESCRIPTION
The first sensor, the Air-Fuel Ratio (A/F) sensor, sends pre-catalyst information to the ECM. The second
sensor, the Heated Oxygen (HO2) sensor, sends post-catalyst information to the ECM.
control.
and the TWC.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P0420
OSC value smaller than standard value
under active air-fuel ratio control
(1 trip detection logic)
Gas leakage from exhaust system
Air-Fuel Ratio (A/F) sensor (for Bank 1
Sensor 1)
Heated Oxygen (HO2) sensor (for Bank 1
Sensor 2)
Front No. 2 exhaust pipe assembly (TWC:
Front Catalyst and Rear Catalyst)
P0430
OSC value smaller than standard value
under active air-fuel ratio control
(1 trip detection logic)
Gas leakage from exhaust system
Air-Fuel Ratio (A/F) sensor (for Bank 2
Sensor 1)
Heated Oxygen (HO2) sensor (for Bank 2
Sensor 2)
Front exhaust pipe assembly (TWC: Front
Catalyst and Rear Catalyst)
CATALYST LOCATION
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430;...
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
1 driving cycles
TYPICAL ENABLING CONDITIONS
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430;...
Monitor runs whenever
following DTCs not present
P0010, P0020 (VVT oil control valve)
P0011, P0021 (VVT system - Advance)
P0012, P0022 (VVT system - Retard)
P0013, P0023 (Exhaust VVT 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, P0156, P0137, P0157, P0138, P0158, P0139, P0159, P0606, P0607,
P013A, P013C (Rear Oxygen 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)
P0171, P0172, P0174, P0175 (Fuel system)
P0301 - P0308 (Misfire)
P0335 (Crankshaft position sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)
P0340, P1340 (Camshaft position sensor)
P0351 - P0358 (Igniter)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)
P0412, P0415, P0418, P0419, P1613, P1614 (Secondary Air Injection System
Control)
P0500 (Vehicle speed sensor)
P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3
(Air-fuel ratio imbalance)
P2440, P2441, P2442, P2443, P2444, P2445, P2446, P2447 (Secondary Air
Injection System)
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 RPM
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
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430;...
(b) Estimated front
catalyst temperature
550 to 820°C (1022 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:
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