Ignition System Construction
Precautions: General safety (00)
The ignition system is of an electronic ignition type which consists of the following components.
•ECM
It monitors the engine and vehicle conditions through the signals from the sensors, determines the most suitable ignition timing and duration and sends a signal to the ignition coil assembly.
•Ignition coil assembly
One ignition coil assembly is provided for each cylinder.
The ignition coil assembly turns on and off the current to the primary coil according to the signal from ECM. When the current flow to the primary coil is turned off, a high voltage is induced in the secondary coil.
•Spark plugs
•CMP sensor and CKP sensor
Using signals from these sensors, ECM identifies the specific cylinder whose piston is in the compression stroke, detects the crank angle and adjusts initial ignition timing automatically.
•TP sensor, ECT sensor, MAP sensor, IAT sensor, knock sensor and other sensors / switches
Using signals from these sensors / switches, the ECM corrects the initial ignition timing and sets the optimum timing according to the engine conditions.
It monitors the engine and vehicle conditions through the signals from the sensors, determines the most suitable ignition timing and duration and sends a signal to the ignition coil assembly.
•Ignition coil assembly
One ignition coil assembly is provided for each cylinder.
The ignition coil assembly turns on and off the current to the primary coil according to the signal from ECM. When the current flow to the primary coil is turned off, a high voltage is induced in the secondary coil.
•Spark plugs
•CMP sensor and CKP sensor
Using signals from these sensors, ECM identifies the specific cylinder whose piston is in the compression stroke, detects the crank angle and adjusts initial ignition timing automatically.
•TP sensor, ECT sensor, MAP sensor, IAT sensor, knock sensor and other sensors / switches
Using signals from these sensors / switches, the ECM corrects the initial ignition timing and sets the optimum timing according to the engine conditions.