2.2.7.12 Electronic Throttle Body (ETC) Inspection 

Electronic throttle body consists of two throttle position sensors and a throttle body drive motor. 

1.  Electronic Throttle Body Connector View and Functions: 

A

B

C

D

E

F

G

H

NL02-2163b

 

Terminal No . 

ECM Related Terminal No. 

Function 

A 

EN01(74) 

Low Reference Voltage 

B EN01(52) 

TPS1 

Signal 

C EN01(27) 

TPS2 

signal 

D EN01(70) 

5V 

Reference 

Voltage 

E EN01(21) 

Throttle Body Motor Control 
(Plus) 

F -  Empty 

G -  Empty 

H EN01(20) 

Throttle Body Motor Control 
(Minus) 

2.  Throttle Position Sensor Technical Specifications 

As one of the system security measures, the system consists of dual output throttle position 
sensors. One throttle position sensor output voltage signal increases as the throttle body opening 
increases, while the other throttle position sensor output voltage signal decreases as the throttle 
body opening increases. 

Resistance value Between Terminals A and D: 1.9 ± 0.9 kΩ 

TPS Sensor Output Signal Diagram: 

715

FE02-5234b

 

Notes: 

An oscilloscope can be used for detecting the above TPS sensor output signal, and the output 
waveform line should be smooth without noise wave! If the output signal zeros or drops 
suddenly when throttle body rotates at a certain angel, the ETC assembly shall be replaced. 
ETC is an assembly. Do not disassemble it to repair. 

 

2.2.7.13 Acceleration Pedal Position Sensor (APP) Inspection 

As one of the system security measures, acceleration pedal position sensor is designed to have 
dual outputs. Two sensors output voltage signals increase as the acceleration pedal position 
increases. 

1.  Acceleration Pedal Position Sensor Connector End View and Function 

1

2

3

4

5

6

NL02-2165b

 

Terminal No . 

ECM Related Terminal No. 

Function 

1 EN01(66) 

Sensor No.2 Reference 
Voltage 

TPS1 Outputsignal 

curve 

TPS out

put

 (%) 

Open angle of throttle 

Idling speed:6%-14%
Full open: 81%-93%

TPS2 outputsignal 

curve 

TPS out

put

 (%) 

Open angle of throttle 

Idling speed: 86%-94% 

Full open:7%-19% 

716

2 EN01(70) 

Sensor No.1 Reference 
Voltage 

3 EN01(74) 

Sensor No.1 Low Reference 
Voltage 

4 

EN01(41) 

Sensor No.1 Output Signal 

5 EN01(76) 

Sensor No.2 Low Reference 
Voltage 

6 

EN01(42) 

Sensor No.2 Output Signal 

2. Acceleration 

Pedal 

Position 

Sensor Technical Specifications 

0

10

20

30

40

50

60

70

80

90

0

5

10

15

20

油门踏板臂转动角度(°)

输出电压
与传感器电
压之比(%)

<92.5%

<46.25%

7.5%

15%

NL02-2166b

 

Notes: 

An oscilloscope can be used for detecting the above APP sensor output signal, and the output 
waveform line should be smooth without noise wave! If the output signal zeros or drops 
suddenly when accelerator pedal rotates at a certain angel, the APP assembly shall be replaced. 
APP is an assembly. Do not disassemble it to repair. 

Voltage ratio 
of 
outputvoltage 
and 
sensor(%) 

Accelerator pedal arm rotating angle (°) 

717

2.12.7.14 DTC Chapter Index 

DTC Description 

Type 

P0011 

Intake VCP Phase Response Lag Behind 

P0012 

Intake VCP Camshaft Phase Error is Big 

P0016 

Intake VCP Camshaft Gear Learn Bias Out of 
Range 

P0026 

Intake VCP Hydraulic Control Valve Clinch 

Refer to 2.2.7.15 P0011 
P0012 P0016 P0026. 

P0076 

Intake VCP Hydraulic Control Valve Coil 
Low Voltage or Open Circuit 

P0077 

Intake VCP Hydraulic Control Valve Coil 
High Voltage 

Refer to 2.2.7.17 DTC 
P0076 P0077 

P0068 

Electronic Throttle Air Flow Error 

Refer to 2.2.7.16 DTC 
P0068 P0106 

P0106 

Intake Pressure/Throttle Position Fault 

Refer to 2.2.7.18 DTC 
P0107 P0108 

P0107 

Manifold air pressure sensor circuit has low 
voltage or is open 

Refer to 2.2.7.18 DTC 
P0107 P0108 

P0108 

Intake Air Pressure Sensor Circuit High 
Voltage 

Refer to 2.2.7.18 DTC 
P0107 P0108 

P0112 

Intake Air Temperature Sensor Circuit Low 
Voltage 

P0113 

Intake Air Temperature Sensor Circuit High 
Voltage or Open Circuit 

Refer to 2.2.7.19 DTC 
P0112 P0113 

P0117 

Coolant Temperature Sensor Circuit Low 
Voltage 

Refer to 2.2.7.20 DTC 
P0117 P0118 

P0118 

Coolant Temperature Sensor Circuit High 
Voltage or Open Circuit A 

Refer to 2.2.7.20 DTC 
P0117 P0118 

P0122 

Electronic Throttle Position Sensor #1 Circuit 
Low Voltage 

P0123 

Electronic Throttle Position Sensor #1 Circuit 
High Voltage 

Refer to 2.2.7.21 DTC 
P0122 P0123 

P0131 

Front Oxygen Sensor Circuit Short to Low 
Voltage 

P0132 

Front Oxygen Sensor Circuit Short to High 
Voltage 

P0133 

Slow response of front oxygen sensor 

P0134 

Front Oxygen sensor is open 

Refer to 2.2.7.22 DTC 
P0131 P0132 P0133P0134 

718