Vauxhall Workshop Service and Repair Manuals

Ignition Module  

The following engines, like the X 10 XE in the Corsa-B, are equipped with an ignition module (single spark ignition coils with integrated spark plug connectors).  

Engine	Engine management system
X 12 XE	Motronic M 1.5.5
X 14 XE / X 16 XEL	Multec-S
X 18 XE1	Simtec 70
X 20 XEV	Simtec 70

In the ignition module, each cylinder is allocated one ignition coil and one ignition final stage, which are actuated by the engine control unit in the ignition sequence.  

The firing angles for the individual cylinders are determined from the camshaft and crankshaft signals.  

The ignition module with integrated spark plug connectors is located directly above the spark plugs.  

The benefits of the ignition module are:  

•  No power loss in distribution  

•  Compact design  

•  Reduction in number of components  

•  Decreased electromagnetic interference  

2.14   Ignition Module (continued)  

I	Ignition module (X 14 XE / X 16 XEL)
1	One ignition coil per cylinder
2	Wiring harness plug connection
3	Integrated spark plug connectors
II	Design of a single spark ignition coil
4	Low voltage connection (wiring harness plug connection)
5	Laminated iron core
6	Primary winding
7	Secondary winding
8	High voltage connection
9	Spark plug
III	Circuit diagram (X 14 XE / X 16 XEL)