Starting System
The function of the starting system is to crank the engine at a speed fast enough to allow the engine to start. Heavy cables, connectors and switches are used in the system because of the large currents required.
The starting system comprises a gear reduced starter motor, battery, remote control switch (ignition switch) and relay.
Vehicles equipped with automatic transmission have a transmission range sensor attached to the circuit which prevents operation of the starter motor unless NEUTRAL or PARK are selected.
The sequence of operation is as follows:
- Ignition switch to position III.
- Starter relay activated.
- Voltage provided to starter motor solenoid.
- Starter solenoid engages drive pinion to ring rear.
- Starter solenoid switches battery current to starter motor.
- System remains engaged until ignition switch is released.
Disconnecting the Battery
NOTE:Before disconnecting the battery ensure that the audio unit and compact disc player keycodes are known. On vehicles fitted with powertrain control modules, make sure that no further data is required from the module as battery disconnection will erase the Keep Alive Memory (KAM) contained in this system. It is not necessary to disconnect or remove electronic control modules.
Alternatively the EMAT Radio Code Saver, FDEP No. 1683410, may be used. The unit plugs into the cigar lighter socket and connects to the vehicle battery terminals by two clips. With the battery disconnected from the vehicle system the Radio Code Saver will allow sufficient current to pass to maintain the audio unit and compact disc player memory, operate the clock and supply the door operated interior lights while isolating the battery in the event of a short circuit.
Always stop the engine before disconnecting the battery negative lead.
Always disconnect the battery before commencing repair operations which require:
- The vehicle to be jacked up
- Work on the engine
- Work underneath the vehicle
- Arc welding
Reconnecting the Battery
WARNING:If the battery has been on bench charge the cells may be giving off explosive hydrogen gas. Avoid creating sparks, and if in doubt cover the vent plugs or covers with a damp cloth.
Always ensure that all electrical systems are switched off before reconnecting the battery to avoid causing sparks or damage to sensitive electrical equipment.
Always reconnect the battery positive lead first and the ground last, ensuring that there is a good electrical contact and the battery terminals are secure.
Restart the clock (when fitted) and set it to the correct time.
Re-enter the audio unit and compact disc player keycodes and `preset' frequencies, if known.
Connecting a Slave Battery Using Jump Leads
WARNING:If the slave battery has recently been charged and is gassing, cover the vent plugs or covers with a damp cloth to reduce the risk of explosion should arcing occur when connecting the jump leads.
CAUTION:Whilst it is not recommended that the vehicle is jump started, it is recognised that this may occasionally be the only practical way to mobilise a vehicle. In such an instance the discharged battery must be recharged immediately after jump starting to avoid permanent damage.
CAUTION:A flat battery condition may have been caused by an electrical short circuit. If this condition exists there will be an apparently live circuit on the vehicle even when all normal circuits are switched off. This can cause arcing when the jump leads are connected.
- Always ensure that the jump leads are adequate for the task. Heavy duty cables must be used.
- Always ensure that the slave battery is of the same voltage as the vehicle battery. The batteries must be connected in parallel.
- Always ensure that switchable electric circuits are switched off before connecting jump leads. This reduces the risk of sparks occurring when the final connection is made.
