DTC P1698: Engine Torque Control Cut Signal Circuit Malfunction (Low Input)

• Detect the open/short circuit of AT cooperative signal line.
• Judge NG when ECM output level is different from actual terminal level.

Perform the diagnosis continuously after starting the engine.

• Abnormality Judgment 

  Judge NG when the cumulative time until completing the malfunction criteria below becomes more than the time (0.5 seconds) needed for diagnosis.

  Judgment Value 

  JUDGMENT VALUE
  
  

  Malfunction Criteria	Threshold Value
  Terminal voltage when ECM outputs OFF signal	Low

  Time Needed for Diagnosis:  0.5 seconds

  Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.

• Normality Judgment

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

  Judgment Value 

  JUDGMENT VALUE
  
  

  Malfunction Criteria	Threshold Value
  Terminal voltage when ECM outputs OFF signal	High

• 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

None

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