Toyota Tundra. Manual — part 1325



Starter relay
circuit



Ignition switch



ECM

P0630

VIN not
Programmed or
Mismatch -
ECM/PCM



ECM

Comes on

DTC stored

-

P0657

Actuator Supply
Voltage
Circuit/Open



ECM

Comes on

DTC stored

Applies

P0724

Brake Switch "B"
Circuit High



Short in stop
light switch
signal circuit



Stop light
switch



ECM

Comes on

DTC stored

Applies

P1340

Camshaft Position
Sensor "A" (Bank 1
Sensor 2)



Open or short in
camshaft
position sensor
circuit



Camshaft
position sensor



Camshaft timing
pulley LH



ECM

Comes on

DTC stored

Applies

P1342

Camshaft Position
Sensor "A" Low
Input (MRE)



Open or short in
camshaft
position sensor
circuit



Camshaft
position sensor



Camshaft timing
pulley LH



ECM

Comes on

DTC stored

Applies

P1343

Camshaft Position
Sensor "A" High
Input (MRE)



Open or short in
camshaft
position sensor
circuit



Camshaft
position sensor



Camshaft timing

Comes on

DTC stored

Applies

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

pulley LH



ECM

P1607

Cruise Control Input
Processor



ECM

Comes on

DTC stored

Applies

P1613

Secondary Air
Injection Driver
Malfunction



Short in
diagnostic
information
signal circuit
(AID - ECM)



Open or short in
air pump and air
switching valve
command signal
circuit (AID -
ECM)



Open in AID
ground circuit



Open or short in
AID power
source circuit



Open in
diagnostic
information
signal circuit
(AID - ECM)



AID



ECM

Comes on

DTC stored

Applies

P1614

Secondary Air
Injection System
Driver Bank 2



Short in
diagnostic
information
signal circuit
(AID - ECM)



Open or short in
air pump and air
switching valve
command signal
circuit (AID -
ECM)



Open in AID
ground circuit



Open or short in
AID power
source circuit



Open in

Comes on

DTC stored

Applies

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

diagnostic
information
signal circuit
(AID - ECM)



AID



ECM

P2102

Throttle Actuator
Control Motor
Circuit Low



Open in throttle
actuator circuit



Throttle actuator



ECM

Comes on

DTC stored

Applies

P2103

Throttle Actuator
Control Motor
Circuit High



Short in throttle
actuator circuit



Throttle actuator



Throttle valve



Throttle body
assembly



ECM

Comes on

DTC stored

Applies

P2111

Throttle Actuator
Control System -
Stuck Open



Throttle actuator



Throttle body
assembly



Throttle valve

Comes on

DTC stored

Applies

P2112

Throttle Actuator
Control System -
Stuck Closed



Throttle actuator



Throttle body
assembly



Throttle valve

Comes on

DTC stored

Applies

P2118

Throttle Actuator
Control Motor
Current
Range/Performance



Open in ETCS
power source
circuit



ETCS fuse



ECM

Comes on

DTC stored

Applies

P2119

Throttle Actuator
Control Throttle
Body
Range/Performance



ETCS



ECM

Comes on

DTC stored

Applies

P2120

Throttle/Pedal
Position
Sensor/Switch "D"
Circuit



APP sensor



ECM

Comes on

DTC stored

Applies

P2121

Throttle/Pedal
Position
Sensor/Switch "D"



Accelerator
Pedal Position
(APP) sensor

Comes on

DTC stored

Applies

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

Circuit Range/
Performance



ECM

P2122

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



APP sensor



Open in VCP1
circuit



Open or ground
short in VPA
circuit



ECM

Comes on

DTC stored

Applies

P2123

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



APP sensor



Open in EPA
circuit



ECM

Comes on

DTC stored

Applies

P2125

Throttle/Pedal
Position
Sensor/Switch "E"
Circuit



APP sensor



ECM

Comes on

DTC stored

Applies

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

Applies

P2128

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



APP sensor



Open in EPA2
circuit



ECM

Comes on

DTC stored

Applies

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

Applies

P2138

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



Short between
VPA and VPA2
circuits



APP sensor



ECM

Comes on

DTC stored

Applies

P2195

Oxygen (A/F)



Open or short in Comes on

DTC stored

-

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra