DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 Or Single Sensor)

Detect the open or short circuit of knock sensor.

Judge NG when out of the standard value.

Always perform the diagnosis continuously after starting the engine.

Judge NG when the continuous time until completing the malfunction criteria below becomes more than the time (1 second) needed for diagnosis. Judge OK when the malfunction criteria below are not completed.

Judgment Value 

Time Needed for Diagnosis:  1 second

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

• When the OK idling cycle is completed 40 times in a row
• When "Clear Memory" was performed

• When the OK driving cycle was completed 3 times in a row
• When "Clear Memory" was performed

1. Stop whole compensation, partial compensation, knock cancel compensation in ignition timing calculation at normal.
2. Knock cancel compensation of low engine coolant temperature is fixed value (7°CA).
3. Stop partial compensation calculation of ignition leaning.

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