Triumph Tiger Explorer XR 2016, Service Manual

Page: 24 / 750

Turn the circuit to be tested 'ON'.
Set the Digital Multi Meter (DMM) to Voltage Check (V). 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.
Splices
Splices are probably the most common cause of wiring faults after connectors. Splices are made where two or
more wires come together and diverge in different directions, usually to feed a different circuit.
To locate a splice, it is necessary to peel back the insulation and examine the splice for its integrity. The most
common fault is where one of the wires at the joint has come adrift usually causing the circuit it feeds or grounds
to become 'dead'.
Switches
To check a switch, set the multimeter to resistance/continuity and probe the two pins that form a closed circuit
when the switch is pushed. If the switch is working correctly, the resistance should register or the meter will
bleep.
Relays
All relay cases have a circuit path engraved on them showing the circuit path across the electromagnet and the
switch. Before making any checks, first note the pin designations, current paths, and whether or not there is a
diode in either circuit path.
Make continuity checks across the electromagnet first, usually from pin 86 (positive) to pin 85 (negative). If a
diode appears in the circuit use the diode check on the multimeter (Volts scale) in the direction of current flow. If
there is no diode, use the resistance check facility. An open circuit or unusually high resistance value indicates a
Tiger Explorer XR Series
20 of 746
GENERAL INFORMATION