DTC P0120 THROTTLE POSITION SENSOR; ECM Terminals and Reference Value; On Board Diagnosis Logic; DTC Confirmation Procedure

EF & EC-7091spec table

Throttle position fully depressed reads 4.10-4.30 V here (matches CONSULT-II monitor); prior ECM Inspection Table 5 (EF & EC-7069) had 4.10-4.80 V — values not identical across pages; preserved verbatim per page.

Continued from EF & EC-7090

CG10, CGA3

ECM Terminals and Reference Value

Specification data are reference values and are measured between each terminal and ground.

CAUTION

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a grond other than ECM terminals, such as the ground.

ECM Terminals — Throttle Position Sensor

Terminal No.	Wire color	Item	Condition	Data (DC Voltage)
46	G	Sensors' power supply	[Ignition switch "ON"]	Approximately 5 V
71	B/W	Sensors' ground	[Engine is running] - Warm up condition - Idle speed	Approximately 0 V
73	L	Throttle position sensor	[Ignition switch "ON"] - Warm-up condition - Accelerator pedal fully released	0.20 - 0.81 V
73	L	Throttle position sensor	[Ignition switch "ON"] - Accelerator pedal fully depressed	4.10 - 4.30 V

Wire colorG

ItemSensors' power supply

Condition[Ignition switch "ON"]

Data (DC Voltage)Approximately 5 V

Wire colorB/W

ItemSensors' ground

Condition[Engine is running] - Warm up condition - Idle speed

Data (DC Voltage)Approximately 0 V

Wire colorL

ItemThrottle position sensor

Condition[Ignition switch "ON"] - Warm-up condition - Accelerator pedal fully released

Data (DC Voltage)0.20 - 0.81 V

Wire colorL

ItemThrottle position sensor

Condition[Ignition switch "ON"] - Accelerator pedal fully depressed

Data (DC Voltage)4.10 - 4.30 V

On Board Diagnosis Logic

Code P0120

Throttle Position Sensor

DTC Confirmation Procedure

NOTE

If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 1 second before conducting the next test.

With CONSULT-II

1
Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT-II.
2
Start engine and wait for at least 2 consecutive seconds.
3
If 1st trip DTC is detected, go to "Diagnostic Procedure", EC-7094.

With GST

1
Start engine and maintain the following conditions for at least 2 consecutive seconds.
2
Select "MODE 7" with GST.
3
If 1st trip DTC is detected, go to "Diagnostic Procedure", EC-7094.

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