LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2000 >> SC 400 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1300, P1305, P1310, P1315, P1320, P1325, P1330 Or P1340: IGNITOR Circuit Malfunction >> Circuit Description

Circuit Description

Vehicle is equipped with a Direct Ignition System (DIS), with a coil/ignitor devoted to each cylinder. Primary circuit is turned off when ECM delivers a signal to coil/ignitor on the IGT wire, causing ignition coil/ignitor to fire spark plug. After delivering a command to turn off primary circuit on IGT wire, the ECM monitors ignition confirmation signal on the IGF circuit to ensure primary switching has occurred. If IGF signal is not input to ECM, the ECM will stop fuel injection as a fail safe function. DTC will set if there is no IGF signal to ECM with engine running. DTC 1300 is for cylinder No. 1. DTC 1305 is for cylinder No. 2. DTC 1310 is for cylinder No. 3. DTC 1315 is for cylinder No. 4. DTC 1320 is for cylinder No. 5. DTC 1325 is for cylinder No. 6. DTC P1330 is for cylinder No. 7. DTC P1340 is for cylinder No. 8. Possible causes are:

scientia non olet · About LEMON Manuals