To Check Continuity; To Measure Voltage - Triumph Rocket III Classic Service Manual

which can also cause electrical failures and DTCs
(Diagnostic Trouble Code) to be stored.
When tracing a wire that is suspect, carefully check the
circuit diagram before starting. Remember
• a wire may diverge at a splice and go off to
feed other circuits. If these circuits are
working, check for wiring faults from the
splice onwards.
•
•
the circuit diagram is not an accurate guide
to the actual location of the parts when fitted
on the bike. It is a schematic diagram of the
circuits.
particularly where engine management items
are concerned, the circuit is only completed
by the ECM. If the ECM is not connected, the
circuit may register as open.
To Check Continuity:
Ensure the circuit being tested is switched off before
measuring continuity. Damage to the Digital Multi
Meter (DMM) may result from testing a 'live' circuit with
the meter set to resistance
(0).
In the example below, the ground circuit continuity is
being tested from the battery to the frame.
•
•
Continuity (resistance) Check
Locate each end of the wire .
Set the Digital Multi Meter (DMM) to
resistance check (0).
• Probe each end of the wire.
• If there is continuity, the meter will usually
bleep or register the resistance of the cable.
• A high resistance figure could indicate a dirty
or corroded connection.
General Information
If there is a break in the wire, the meter will
not bleep or register a resistance.
• By probing the wire in various places, the
position of a high resistance or break in the
wire (open circuit> can be narrowed down
until it is found.
To Measure Voltage:
In the example below, the circuit voltage is being
measured at the bulb positive
(+)
terminal.
•
•
@@
Voltage Check
Turn the circuit to be tested 'ON'
Set the Digital Multi Meter (DMM) to Voltage
check CV). Ensure the multi meter is set to dc
volts for direct current circuits (most circuits)
or ac volts for alternating current circuits
(typically alternator output voltage tests).
Set the range of the DMM to the range best
suited to the voltage of the circuit being
tested (typically 20 volts for most DMMs).
Refer to the DMM manufacturers
instructions.
Connect the black (ground) lead of the DMM
to a reliable ground connection (usually the
battery or frame ground).
Locate the positive terminal of the wire or
component to be tested.
connect the red (positive) lead of the DMM
to the positive terminal.
Read the voltage from meter .
SelVice Manual - Rocket
1111
Classic
I
Touring
1.17