Ignition "OFF"
Disconnect the "INPUT SPEED SENSOR" connector
Measure resistance between terminal "1","2" and "2","3" and "1","3" of the "INPUT SPEED SENSOR" connector .
Specification : Refer to " Reference data"
Is resistance within specifications?
Data | Reference Data | |
Current | 22 mA | |
Air Gab | Input sensor | 1.3 mm |
Output sensor | 0.85 mm | |
Resistance | Input sensor | Above 4 ㏁ |
Output sensor | Above 4 ㏁ | |
Voltage | High | 4.8 ~ 5.2V |
Low | Below 0.8V | |
 | ▶ Go to "CHECK PCM/TCM " as below |
 | ▶ Replace "INPUT SPEED SENSOR" as necessary and Go to "Verification Vehicle Repair" procedure. |
Ignition "ON" & Engine "OFF".
Connect "INPUT SPEED SENSOR" connector.
Install GDS and slect a SIMU-SCAN,
Simulate frequency to INPUT SPEED SENSOR signal circuit.
Fig 1) INPUT 150Hz → 297rpm
Fig 2) INPUT 250Hz → 495rpm
※ The values are subject to change according to vehicle model or conditions
Is "INPUT SPEED SENSOR" signal value changed according to simulation frequency?
| ▶ Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure. |
| ▶ Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and then go to "Verification of Vehicle Repair" procedure. |
