Toyota Tundra (2015 year). Manual — part 2033
OK
(d) Turn the ignition switch to ON and turn the Techstream on.
(e) Clear DTCs (if set)
.
(f) Enter the following menus: Powertrain / Engine and ECT / Utility / Air Injection Check /
Automatic Mode.
(g) Start the engine after the Techstream initialization is finished.
(h) Perform the System Check operation by pressing Next.
(i) After operating the AIR system, perform the following to confirm the AIR system pending
codes: Press the Exit button.
(j) Check pending DTCs.
(k) Turn the ignition switch off.
OK:
No pending DTC output.
NOTICE:
When performing the Air Injection Check operation after the battery cable has been reconnected, wait
for 7 minutes with the ignition switch turned to ON or the engine running.
Turn the ignition switch off when the Air Injection Check operation finishes.
NG
REPLACE ECM
OK
END
16.
INSPECT VACUUM HOSES (AIR SWITCHING VALVE - PRESSURE SENSOR)
OK:
No blockage and no deformation in vacuum hose.
NG
REPAIR OR REPLACE VACUUM HOSE
17.
INSPECT AIR SWITCHING VALVE ASSEMBLY (PRESSURE SENSOR)
NG
REPLACE AIR SWITCHING VALVE ASSEMBLY
OK
CHECK FOR INTERMITTENT PROBLEMS
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2440-P2443;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM0000013HD04MX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447; Secondary Air Injection System Pump
Stuck On Bank1; 2015 MY Tundra [08/2014 - ]
DTC
P2444
Secondary Air Injection System Pump Stuck On Bank1
DTC
P2445
Secondary Air Injection System Pump Stuck Off Bank1
DTC
P2446
Secondary Air Injection System Pump Stuck On Bank 2
DTC
P2447
Secondary Air Injection System Pump Stuck Off Bank 2
DESCRIPTION
Refer to P2440
.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P2444
P2446
Secondary air pressure more than 2.4 kPa (18 mmHg)
despite ECM commanding air pump to turn off
(2 trip detection logic)
Short in air pump circuit
Open or short in pressure
sensor circuit
Pressure sensor
Air Injection Control Driver
(AID)
ECM
P2445
P2447
Secondary air pressure less than 2.4 kPa (18 mmHg)
despite ECM commanding air pump to turn on
(2 trip detection logic)
Air pump
Open in air pump circuit
Air injection system piping
Vacuum hose (pressure
sensor - air switching valve)
Pressure sensor
Open or short in pressure
sensor circuit
Air Injection Control Driver
(AID)
ECM
MONITOR DESCRIPTION
The ECM monitors the pressure in the secondary air passage using the pressure sensor located on the Air
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
The pressure indicated by the pressure sensor does not reach threshold levels despite the ECM
turning on the air pump.
The pressure indicated by the pressure sensor exceeds threshold levels despite the ECM turning off
the air pump.
MONITOR STRATEGY
Related DTCs
P2444: Air pump stuck ON
P2445: Air pump stuck OFF
P2446: Air pump stuck ON
P2447: Air pump stuck OFF
Required Sensors/Components (Main)
Pressure sensor
Required Sensors/Components (Related)
-
Duration
7 seconds
MIL Operation
2 driving cycles
TYPICAL ENABLING CONDITIONS
All
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)
P0102, P0103 (Mass air flow meter)
P0112, P0113 (Intake air temperature sensor)
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)
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)
P0327, P0328, P032C, P032D, P0332, P0333, P033C, P033D (Knock Sensor)
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)
P0451, P0452, P0453 (Evaporative Emission System Pressure Sensor)
P0500 (Vehicle speed sensor)
P106B (Evap. emission control system Pressure Sensor - Air Injection System
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
Pressure Sensor correlation)
P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3
(Air-fuel ratio imbalance)
P2431, P2432, P2433, P2435, P2436, P2437, P2438 (Secondary Air Injection
System Pressure Sensor)
P2444, P2446 AIR pump is stuck ON, P2445, P2447 AIR pump is stuck OFF
Battery voltage
11 V or higher
Atmospheric pressure
45 kPa (337.5 mmHg) or more
Engine
Running
AIR monitor during AIR: ON*1
Completed
AIR monitor during AIR: OFF*2
Completed
*1: AIR monitor during AIR: ON
Time after AIR in operation
5 seconds or more
AIR pump
ON
AIR valve
Open
Engine speed
Less than 3550 rpm
Intake air amount
Less than 99 gm/sec
Time after engine start
1 second or more
*2: AIR monitor during AIR: OFF
Time after AIR in operation
10 seconds or more
AIR pump
OFF
AIR valve
Closed
Engine speed
Less than 2800 rpm
AIR monitor during AIR: ON
Completed
Time after engine started
1 second or more
P2445, P2447 AIR insufficient
Battery voltage
11 V or higher
Atmospheric pressure
45 kPa (337.5 mmHg) or more
Engine
Running
Air flow pattern check condition during AIR monitor during AIR: ON*
Completed
*: Air flow pattern check condition during AIR monitor during AIR: ON
-
AIR valve
Open
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
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