Neutral Switch Input Circuit High (MT Model)

DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL)

1. OUTLINE OF DIAGNOSIS
Judge the open or short circuit of the neutral SW.
Judge as NG when there is no change in the neutral SW even if the driving shift was applied. (There is neutral SW ON/OFF inversion from the vehicle speed and engine speed.)




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 malfunction criteria below are completed 3 time or more after the neutral SW change. Judge as OK and clear the NG when there is change in the neutral SW.

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
Control of cruise control: Control prohibited

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