Toyota Tundra. Manual — part 1507

Position
Sensor/Switch "D"
Circuit
Range/Performance

Pedal Position
(APP) sensor



ECM

P2122

Throttle/Pedal
Position
Sensor/Switch "D"
Circuit Low Input



APP sensor



Open in VCPA
circuit



Open or ground
short in VPA
circuit



ECM

Comes on

DTC stored

P2123

Throttle/Pedal
Position
Sensor/Switch "D"
Circuit High Input



APP sensor



Open in EPA
circuit



ECM

Comes on

DTC stored

P2125

Throttle/Pedal
Position
Sensor/Switch "E"
Circuit



APP sensor



ECM

Comes on

DTC stored

P2127

Throttle/Pedal
Position
Sensor/Switch "E"
Circuit Low Input



APP sensor



Open in VCP2
circuit



Open or ground
short in VPA2
circuit



ECM

Comes on

DTC stored

P2128

Throttle/Pedal
Position
Sensor/Switch "E"
Circuit High Input



APP sensor



Open in EPA2
circuit



ECM

Comes on

DTC stored

P2135

Throttle/Pedal
Position
Sensor/Switch
"A"/"B" Voltage
Correlation



Short between
VTA1 and
VTA2 circuits



TP sensor (built
into throttle
body)



ECM

Comes on

DTC stored

P2138

Throttle/Pedal
Position
Sensor/Switch
"D"/"E" Voltage
Correlation



Short between
VPA and VPA2
circuits



APP sensor

Comes on

DTC stored

2009 Toyota Tundra

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



ECM

P2195

Oxygen (A/F) Sensor
Signal Stuck Lean
(Bank 1 Sensor 1)



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



A/F sensor (for
Sensor 1)



A/F sensor
heater (for
Sensor 1)



Integration relay



A/F sensor
heater and
integration relay
circuits



Air induction
system



Fuel pressure



Injector



ECM

Comes on

DTC stored

P2196

Oxygen (A/F) Sensor
Signal Stuck Rich
(Bank 1 Sensor 1)



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



A/F sensor (for
Sensor 1)



A/F sensor
heater (for
Sensor 1)



Integration relay



A/F sensor
heater and
integration relay
circuits



Air induction
system



Fuel pressure



Injector



ECM

Comes on

DTC stored

P2197

Oxygen (A/F) Sensor
Signal Stuck Lean
(Bank 2 Sensor 1)



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



A/F sensor (for

Comes on

DTC stored

2009 Toyota Tundra

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

Sensor 1)



A/F sensor
heater (for
Sensor 1)



Integration relay



A/F sensor
heater and
integration relay
circuits



Air induction
system



Fuel pressure



Injector



ECM

P2198

Oxygen (A/F) Sensor
Signal Stuck Rich
(Bank 2 Sensor 1)



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



A/F sensor (for
Sensor 1)



A/F sensor
heater (for
Sensor 1)



Integration relay



A/F sensor
heater and
integration relay
circuits



Air induction
system



Fuel pressure



Injector



ECM

Comes on

DTC stored

P2237

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



Open in Air
Fuel Ratio (A/F)
sensor (for Bank
1 Sensor 1)
circuit



Air Fuel Ratio
(A/F) sensor
(for Bank 1
Sensor 1)



ECM

Comes on

DTC stored

2009 Toyota Tundra

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

P2238

Oxygen (A/F) Sensor
Pumping Current
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

P2239

Oxygen (A/F) Sensor
Pumping Current
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

Comes on

DTC stored

P2240

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



Open in Air
Fuel Ratio (A/F)
sensor (for Bank
2 Sensor 1)
circuit



Air Fuel Ratio
(A/F) sensor
(for Bank 2
Sensor 1)



ECM

Comes on

DTC stored

P2241

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



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

Comes on

DTC stored

2009 Toyota Tundra

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