GENERAL INFORMATION
2
ELECTRICAL PRECAUTIONS
Ignition system safety precautions
WARNING: Before commencing work on
an ignition system, all high tension
terminals, adapters and diagnostic
equipment should be inspected.
Ensure all cables, connectors and components
are adequately insulated and shielded.
Accidental contact with a poorly insulated
ignition system component could result in a
severe electrical shock.
Wearers of surgically implanted pacemaker
devices should not be in close proximity to
ignition circuits or diagnostic equipment.
Disciplines
Switch off the ignition prior to making any connection
or disconnection in the system to prevent electrical
surges caused by disconnecting ’live’ connections
damaging electronic components.
Ensure hands and work surfaces are clean and free
of grease, swarf, etc. Grease collects dirt which can
cause electrical tracking (short-circuits) or
high-resistance contacts.
When handling printed circuit boards, treat with care
and hold by the edges only; note that some
electronic components are susceptible to body
static.
Connectors should never be subjected to forced
removal or refit, especially inter-board connectors.
Damaged contacts can cause short-circuit and
open-circuit fault conditions.
Prior to commencing test, and periodically during a
test, touch a good vehicle body earth to discharge
static charge. Some electronic components are
vulnerable to the static electricity that may be
generated by the operator.
Grease for electrical connectors
Some under bonnet and under body connectors may
be protected against corrosion by the application of
a special grease during vehicle production. Should
connectors be disturbed in service, or repaired or
replaced, additional grease should be re-applied:
Part No. BAU 5811, available in 150 gm tubs.
NOTE: The use of greases other than BAU
5811 must be avoided as they can migrate
into relays, switches etc. contaminating
the contacts and leading to intermittent
operation or failure.