Ignition System Check

IGNITION SYSTEM CHART

Step	Action	YES	NO
1	Was "Engine and Emission Control System Check" performed?	Go to Step 2.	Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2	Ignition spark test Check all spark plugs for condition and type referring to SPARK PLUG INSPECTION . If OK, perform ignition spark test referring to IGNITION SPARK TEST . Is spark emitted from all spark plugs?	Go to Step 8.	Go to Step 3.
3	DTC check Perform DTC Check referring to . Is DTC stored in ECM (PCM)?	Go to applicable "DTC diag. flow".	Go to Step 4.
4	Electrical connection check Check for proper connection to each ignition coil assembly at each terminal and at spark plug. Are they connected securely?	Go to Step 5.	Connect securely.
5	Ignition coil assembly power supply, ground and trigger signal circuits check Check these circuits for open and short. Are circuits in good condition?	Go to Step 6.	Repair or replace.
6	Ignition coil assembly check Substitute a known-good ignition coil assembly and repeat Step 2. Is spark emitted from spark plug(s)?	Malfunction of ignition coil assembly.	Go to Step 7.
7	CMP sensor and its circuits check Check CMP sensor power and ground circuits for open and short, and CMP sensor for signal Voltage referring to Step 4 to Step 7 of DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT . Are check results satisfactory?	Substitute a known-good ECM (PCM) and repeat Step 2.	CMP sensor malfunction or wire harness open or short. If the check result is OK, substitute a known-good ECM.
8	Ignition timing check Check initial ignition timing and ignition timing advance referring to IGNITION TIMING INSPECTION AND ADJUSTMENT . Is check result satisfactory?	System is in good condition.	Adjust ignition timing or check ECM input signals related to this system.