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DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT LOW INPUT

DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT LOW INPUT

OUTLINE OF DIAGNOSIS

Detect the open or short circuit of throttle position sensor 2.

Judge NG when out of the standard value.

COMPONENT DESCRIPTION


(1)

Throttle position sensor 1 signal

(3)

Throttle position sensor

(2)

Throttle position sensor 2 signal

(4)

Engine control module (ECM)



ENABLE CONDITION

Secondary Parameters Enable Conditions
Ignition switch

ON



GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

DIAGNOSTIC METHOD

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

Judgment Value

Malfunction Criteria Threshold Value
Sensor 1 input voltage

≥ 0.749 V



Time Needed for Diagnosis: 24 milliseconds

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 power distribution to electric control throttle motor. (Throttle opening is fixed to 6°.)

ECM OPERATION AT DTC SETTING

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