Cranking System Description and Operation Opel Agila B

Cranking Circuit

The cranking circuit consists of the battery (G1), starter motor (M15), starting motor relay (K61), ignition switch (S149), transmission switch (S187) (AT model), clutch pedal position (CPP) no.1 switch (S41A) (for engine stop/start model), and related electrical wiring.

Starter Motor Circuit

The magnetic switch coils in the starter M15 are magnetized when the ignition switch S149 is turned to the “START” position. The resulting plunger and pinion drive lever movement causes the pinion to engage the engine flywheel gear, the magnetic switch main contacts to close and then cranking takes place. When the engine starts, the pinion over-run clutch protects the armature from excessive speed until the magnetic switch is opened, at which time the return spring causes the pinion to disengage.

Starter Motor (Engine Stop/start Model)

The control module (A43) for the engine stop/start system stores the starter-motor driving counter. When the starter-motor driving counter exceeds a count of 180,000, the DTC P1313 is generated and the ENG A-STOP control indicator lights to indicate that the starter motor M15 must be replaced.

Cranking Circuit Diagram K10B

Cranking Circuit Diagram K12B