DTC Confirmation Test

Malfunction is detected when ECM does not receive signal from ignition primary circuit during engine cranking or running. Possible causes are:

• Ignition primary circuit open or shorted.
• Defective power transistor (integral with ignition coil).
• Defective condenser.
• Defective Crankshaft Position (CKP) sensor (REF).
• CKP sensor (REF) circuit open or shorted.

To set DTC, turn ignition on. Select DATA MONITOR with scan tool. Start engine. If engine does not start, crank engine for at least 5 seconds.