P0123

DTC P0123 - THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT

OUTLINE OF DIAGNOSIS
Detect the open or short circuit of throttle sensor.
Judge NG when out of the standard value.




COMPONENT DESCRIPTION




ENABLE CONDITION

GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

DIAGNOSTIC METHOD




- Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria becomes more than 0.5 seconds.




- Normality Judgment
Judge OK and clear the NG when the malfunction criteria are completed.

DTC CLEAR CONDITION
- When the OK idling cycle was completed 40 times in a row
- When "Clear Memory" was performed

MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When the OK driving cycle was completed 3 times in a row
- When "Clear Memory" was performed

FAIL SAFE
Throttle position sensor process:
- Fix the throttle opening at 6.4 °.
- Fix the closed throttle position learning value at 0 °.
- ISC open loop compensation: Fix the amount of ISC open loop compensation at 6.82%.
- ISC feedback compensation: Not allowed to calculate the amount of ISC feedback compensation.

ECM OPERATING AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)