P1095

DTC P1095 - TUMBLE GENERATED VALVE SIGNAL 1 CIRCUIT MALFUNCTION (SHORT)

OUTLINE OF DIAGNOSIS
Detect the open or short circuit of tumble generated valve motor. Judge NG when the overcurrent signal is sent from IC after tumble generated valve driving IC diagnosis.




COMPONENT DESCRIPTION




ENABLE CONDITION

GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

DIAGNOSTIC METHOD




Judge NG when the malfunction criteria are completed by tumble generated valve driving IC, and then NG signal is sent to main IC. At the main IC, judge NG when the NG signal is sent for 1 second in a row. Judge OK and clear the NG when the OK signal is sent.

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
Tumble generated valve opening
- For tumble generated valve all closing points learning, not allowed to update to closing side.
- For tumble generated valve all opening points learning, not allowed to update to opening side. Tumble generated valve control
- Not allowed to move.

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