P0500
DTC P0500 VEHICLE SPEED SENSOR1. OUTLINE OF DIAGNOSIS
Judge NG when out of standard value.
Judge NG when the received data from ABSCM&H/U is abnormal, and the vehicle speed data is impossible.
2. COMPONENT DESCRIPTION
The vehicle speed signal is transmitted to ABSCM&H/U. Then the OK/NG data of ABS wheel speed sensor is transmitted from ABSCM&H/U through CAN communication.
3. ENABLE CONDITION (USED WITH ABNORMAL JUDGMENT)
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously in 2 seconds or more after starting the engine.
5. DIAGNOSTIC METHOD
- Abnormality judgment
Judge NG when the continuous time of completing the malfunction criteria becomes more than 2.5 seconds.
- Normality Judgment
Judge OK and clear the NG when all malfunction criteria is completed.
6. DTC CLEAR CONDITION
- When the OK idling cycle was completed 40 times in a row
- When "Clear Memory" was performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When the OK driving cycle was completed 3 times in a row
- When "Clear Memory" was performed
8. FAIL SAFE
- Accelerator sensor signal process: Not allowed all closed points learning.
- Vehicle speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
- Fuel cut control: Not allowed vehicle speed 0 km/h (0 MPH) fuel cut. Normally the high vehicle speed fuel cut performs on vehicle speed condition and engine speed, but perform the fuel cut only on engine speed condition (4,400 rpm or more).
- ISC control: Set the open loop compensation to specified value (1 g (0.04 oz)/s). Not allowed ISC feedback volume calculation.
- Air conditioner control: Not allowed air conditioner cut at accelerating.
- Radiator fan control: ON both main/sub.
- Judge gear ratio: Control as gear fixed on 6th.
- Tumble generator valve control: Open the tumble generator valve.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)