Component Inspection

P0721 Output Speed Sensor Circuit Range/Performance

Inspection/Repair - Component Inspection

Component Inspection

Check PCM/TCM
1. Ignition "ON" & Engine "OFF".
2. Connect "OUTPUT SPEED SENSOR" connector.
3. Install scantool and select a SIMU-SCAN,
4. Simulate frequency to OUTPUT SPEED SENSOR signal circuit.








Fig 1) OUTPUT 57Hz -> 51 rpm
Fig 2) OUTPUT 349Hz -> 310 rpm
** The values are subject to change according to vehicle model or conditions
5. Is "OUTPUT SPEED SENSOR" signal value changed according to simulation frequency?