Toyota Tundra. Manual — part 1144



OCV (bank 1)



ECM

P0011

Camshaft Position "A"
- Timing Over-
Advanced or System
Performance (Bank 1)



Valve timing



Oil control valve
(OCV)



OCV filter



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0012

Camshaft Position "A"
- Timing Over-
Retarded (Bank 1)



Valve timing



Oil control valve
(OCV)



OCV filter



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0016

Crankshaft Position -
Camshaft Position
Correlation (Bank 1
Sensor A)



Mechanical
system (Timing
chain has jumped
tooth or chain
stretched)



Oil control valve
(OCV)



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0018

Crankshaft Position -
Camshaft Position
Correlation (Bank 2
Sensor A)



Mechanical
system (Timing
chain has jumped
tooth or chain
stretched)



Oil control valve
(OCV)



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0020

Camshaft Position "A"
Actuator Circuit (Bank
2)



Open or short in
OCV (bank 2)
circuit



OCV (bank 2)



ECM

Comes on

DTC Stored

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

P0021

Camshaft Position "A"
- Timing Over -
Advanced or System
Performance (Bank 2)



Valve timing



Oil control valve
(OCV)



OCV filter



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0022

Camshaft Position "A"
- Timing Over-
Retarded (Bank 2)



Valve timing



Oil control valve
(OCV)



OCV filter



Camshaft timing
gear assembly



ECM

Comes on

DTC Stored

P0031

Oxygen (A/F) Sensor
Heater Control Circuit
Low (Bank 1 Sensor 1)



Open in A/F
sensor heater
circuit



A/F sensor heater
(sensor 1)



Integration relay
(A/F relay)



ECM

Comes on

DTC Stored

P0032

Oxygen (A/F) Sensor
Heater Control Circuit
High (Bank 1 Sensor
1)



Short in A/F
sensor heater
circuit



A/F sensor heater
(sensor 1)



Integration relay
(A/F relay)



ECM

Comes on

DTC Stored

P0037

Oxygen Sensor Heater
Control Circuit Low
(Bank 1 Sensor 2)



Open in HO2
sensor (bank 1
sensor 2) heater
circuit



HO2 sensor
(bank 1 sensor 2)
heater



EFI NO. 2 fuse



ECM

Comes on

DTC Stored

P0038

Oxygen Sensor Heater
Control Circuit High



Short in HO2
sensor (bank 1

Comes on

DTC Stored

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

(Bank 1 Sensor 2)

sensor 2) heater
circuit



HO2 sensor
(bank 1 sensor 2)
heater



EFI NO. 2 fuse



ECM

P0051

Oxygen (A/F) Sensor
Heater Control Circuit
Low (Bank 2 Sensor 1)



Open in A/F
sensor heater
circuit



A/F sensor heater
(sensor 1)



Integration relay
(A/F relay)



ECM

Comes on

DTC Stored

P0052

Oxygen (A/F) Sensor
Heater Control Circuit
High (Bank 2 Sensor
1)



Short in A/F
sensor heater
circuit



A/F sensor heater
(sensor 1)



Integration relay
(A/F relay)



ECM

Comes on

DTC Stored

P0057

Oxygen Sensor Heater
Control Circuit Low
(Bank 2 Sensor 2)



Open in HO2
sensor (bank 2
sensor 2) heater
circuit



HO2 sensor
(bank 2 sensor 2)
heater



EFI NO. 2 fuse



ECM

Comes on

DTC Stored

P0058

Oxygen Sensor Heater
Control Circuit High
(Bank 2 Sensor 2)



Short in HO2
sensor (bank 2
sensor 2) heater
circuit



HO2 sensor
(bank 2 sensor 2)
heater



EFI NO. 2 fuse



ECM

Comes on

DTC Stored

P0101

Mass Air Flow Circuit

Comes on

DTC Stored

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Range/Performance
Problem



Mass Air Flow
(MAF) meter



Air induction
system



Ventilation hose
connections

P0102

Mass or Volume Air
Flow Circuit Low
Input



Open or short in
MAF meter
circuit



MAF meter



ECM

Comes on

DTC Stored

P0103

Mass or Volume Air
Flow Circuit High
Input



Open or short in
MAF meter
circuit



MAF meter



ECM

Comes on

DTC Stored

P0110

Intake Air
Temperature Circuit
Malfunction



Open or short in
IAT sensor
circuit



IAT sensor (built
into MAF meter)



ECM

Comes on

DTC Stored

P0111

Intake Air
Temperature Sensor
Gradient Too High

Mass air flow meter

Comes on

DTC Stored

P0112

Intake Air
Temperature Circuit
Low Input



Short in IAT
sensor circuit



IAT sensor (built
into MAF meter)



ECM

Comes on

DTC Stored

P0113

Intake Air
Temperature Circuit
High Input



Open in IAT
sensor circuit



IAT sensor (built
into MAF meter)



ECM

Comes on

DTC Stored

P0115

Engine Coolant
Temperature Circuit
Malfunction



Open or short in
ECT sensor
circuit



ECT sensor



ECM

Comes on

DTC Stored

P0116

Engine Coolant

Comes on

DTC Stored

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra