DTC P2109 THROTTLE ANGLE SENSOR CLOSED POSITION ERROR

OUTLINE OF DIAGNOSIS

Judge NG when all close point learning cannot conducted or abnormal value is detected.

COMPONENT DESCRIPTION

(1)	Engine control module (ECM)	(3)	Motor
(2)	Drive circuit	(4)	Throttle position sensor

ENABLE CONDITION

Secondary Parameters	Enable Conditions
Ignition switch	ON → OFF
Ignition switch (after clear memory only)	OFF → ON

GENERAL DRIVING CYCLE

Perform the diagnosis at all close point learning.

DIAGNOSTIC METHOD

Abnormality Judgment

Judge OK and clear the NG when the malfunction criteria below are completed.

Malfunction Criteria	Threshold Value
Throttle sensor voltage at all close point learning	0.41 — 0.79 V
Time for all close point learning completion	Within 80 milliseconds

Time Needed for Diagnosis: None

Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.

DTC CLEAR CONDITION

•

When the OK idling cycle was completed 40 times in a row

•

When “Clear Memory” was performed (Only engine stop)

MALFUNCTION INDICATOR LIGHT CLEAR CONDITION

•

When the OK driving cycle was completed 3 times in a row

•

When “Clear Memory” was performed (Only engine stop)

FAIL SAFE

Stop the continuity to the electronic control throttle motor. (Fix the throttle opening angle to 6°.)

ECM OPERATION AT DTC SETTING

Memorize the freeze frame data. (For test mode $02)