Disconnect ground cable (-) from the battery.
Attention: As a result, the records of the on-board computer, in particular the fault records and the radio code, are erased. Before disconnecting the battery, read the contents of the section "Removing and installing the battery".
Disconnect the ignition cables, to do this, disconnect the plug connections at the distributor and at the spark plugs.
Attention: When disconnecting, do not pull on the wire, but on the plug.
Check the resistance between the contacts of the distributor cap and the plug contact of the spark plug. Its value should be no more than 25 kOhm.
In case of excessive resistance, clean the cable connection and repeat the measurement. Replace cable if necessary.
By bending the spark plug wires in the area of the spark plug tips, check for cracks. Replace wires if necessary.
Connect ground cable (-) with rechargeable battery.
Set the time on the clock, if any, and enter the security code into the radio.