Toyota Tundra. Manual — part 1508

Sensor 1)

1) circuit



A/F sensor (for
Bank 2 Sensor
1)



A/F sensor
heater (for Bank
2 Sensor 1)



Integration relay



A/F sensor
heater and relay
circuits



ECM

P2242

Oxygen (A/F) Sensor
Pumping Current
Circuit High (Bank 2
Sensor 1)



Open or short in
A/F sensor (for
Bank 2 Sensor
1) circuit



A/F sensor (for
Bank 2 Sensor
1)



A/F sensor
heater (for Bank
2 Sensor 1)



Integration relay



A/F sensor
heater and relay
circuits



ECM

Comes on

DTC stored

P2252

Oxygen (A/F) Sensor
Reference Ground
Circuit Low (Bank 1
Sensor 1)



Open or short in
A/F sensor (for
Bank 1 Sensor
1) circuit



A/F sensor (for
Bank 1 Sensor
1)



A/F sensor
heater (for Bank
1 Sensor 1)



Integration relay



A/F sensor
heater and relay
circuits



ECM

Comes on

DTC stored

P2253

Oxygen (A/F) Sensor

Comes on

DTC stored

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Reference Ground
Circuit High (Bank 1
Sensor 1)



Open or short in
A/F sensor (for
Bank 1 Sensor
1) circuit



A/F sensor (for
Bank 1 Sensor
1)



A/F sensor
heater (for Bank
1 Sensor 1)



Integration relay



A/F sensor
heater and relay
circuits



ECM

P2255

Oxygen (A/F) Sensor
Reference Ground
Circuit Low (Bank 2
Sensor 1)



Open or short in
A/F sensor (for
Bank 2 Sensor
1) circuit



A/F sensor (for
Bank 2 Sensor
1)



A/F sensor
heater (for Bank
2 Sensor 1)



Integration relay



A/F sensor
heater and relay
circuits



ECM

Comes on

DTC stored

P2256

Oxygen (A/F) Sensor
Reference Ground
Circuit High (Bank 2
Sensor 1)



Open or short in
A/F sensor (for
Bank 2 Sensor
1) circuit



A/F sensor (for
Bank 2 Sensor
1)



A/F sensor
heater (for Bank
2 Sensor 1)



Integration relay



A/F sensor
heater and relay

Comes on

DTC stored

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

circuits



ECM

P2401

Evaporative Emission
Leak Detection Pump
Stuck OFF



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

Comes on

DTC stored

P2402

Evaporative Emission
Leak Detection Pump
Stuck ON



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

Comes on

DTC stored

P2419

Evaporative Emission
System Switching
Valve Control Circuit
Low



Canister pump
module
(Reference
orifice, leak
detection pump,
vent valve)

Comes on

DTC stored

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra



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

P2420

Evaporative Emission
System Switching
Valve Control Circuit
High



Canister pump
module
(Reference
orifice, leak
detection pump,
vent valve)



Connector/wire
harness
(Canister pump
module - ECM)



ECM

Comes on

DTC stored

P2431

Secondary Air
Injection System Air
Flow/Pressure Sensor
Circuit
Range/Performance
Bank 1



Pressure sensor



Open or short in
pressure sensor
circuit



ECM

Comes on

DTC stored

P2432

Secondary Air
Injection System Air
Flow/Pressure Sensor
Circuit Low Bank 1



Pressure sensor



Open or short in
pressure sensor
circuit



ECM

Comes on

DTC stored

P2433

Secondary Air
Injection System Air
Flow/Pressure Sensor
Circuit High Bank 1



Pressure sensor



Open or short in
pressure sensor
circuit



ECM

Comes on

DTC stored

P2436

Secondary Air
Injection System Air
Flow/Pressure Sensor
Circuit
Range/Performance



Pressure sensor



Open or short in
pressure sensor
circuit

Comes on

DTC stored

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra