Park/Neutral Switch Input Circuit Low (AT Model)

DTC P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW (AT MODEL)

1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of neutral SW.

Judge as NG when the neutral terminal input in ECM differs from the received data from TCM.

2. ENABLE CONDITION

Enable Condition:

3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after two seconds have passed since the engine started.

4. DIAGNOSTIC METHOD

Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.






Time Needed for Diagnosis: 100 time(s)

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

Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.






Time Needed for Diagnosis: Less than 1 second