AT Model

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

1. OUTLINE OF DIAGNOSIS
Judge the open or short circuit of the neutral SW.
Judge NG when the ECM neutral terminal input differs from the reception data from TCM.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously in 2 seconds after starting the engine.

4. DIAGNOSTIC METHOD




Judge as NG when the continuous time of completing the malfunction criteria given becomes more than 6.5 seconds. Judge as OK and clear the NG when the malfunction criteria given are not met.

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

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

7. FAIL SAFE
None

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