LS400 & SC400
- On LS400, remove lower engine cover and oil pan protector for access to crankshaft position sensor. On SC400, remove lower engine cover for access to crankshaft position sensor. On all models, crankshaft position sensor is located at front of crankshaft, near crankshaft pulley. See Figure. Disconnect electrical connector at crankshaft position sensor.
- Using ohmmeter, check resistance between electrical terminals on crankshaft position sensor. Ensure crankshaft position sensor resistance is within specification. See CRANKSHAFT POSITION SENSOR RESISTANCE table. Replace crankshaft position sensor if resistance is not within specification. See IGNITION SYSTEM in REMOVAL, OVERHAUL & INSTALLATION article. Reinstall electrical connector.
CRANKSHAFT POSITION SENSOR RESISTANCE
| Application |
Ohms |
| All Models |
| Cold |
1630-2740 |
| Hot |
2065-3225 |