APRILIA MSS Mana GT ABS, Service Station Manual

Page: 77 / 394

81.HEATED HANDGRIP UNIT
CAUTION
THE ELECTRICAL SYSTEM IN THIS VEHICLE CAN BE SLIGHTLY DIFFERENT, DEPENDING ON
THE SERIAL NUMBER, SPECIFICALLY IN THE LAYOUT OF THE GLOVE-BOX LIGHT SWITCH
CONNECTIONS.
THE DIFFERENCES ARE HIGHLIGHTED ON THE DIAGRAM BY TWO TYPES OF LINES, DIFFER-
ENT AND ALTERNATE BETWEEN THEM:
•
IF THERE IS A WHITE/RED CABLE ON THE VEHICLE, REFER TO THE PATH MARKED
WITH long/short dashes
•
IF THERE IS A GREEN CABLE ON THE VEHICLE, REFER TO THE PATH MARKED WITH
A UNIFORM DOTTED LINE.
Checks and inspections
GENERAL CONCEPTS OF ELECTRICAL TROUBLESHOOTING
THE CONNECTION DIAGRAMS ARE IN THE ELECTRICAL SYSTEM SECTIONS; PAY ATTENTION
TO THESE DIAGRAMS AS THEY SHOW THE CONNECTOR/COMPONENT AS VIEWED FROM
THE CABLE HARNESS SIDE, THAT IS LOOKING AT THE CABLES WHEN GOING OUT OF THE
"MAIN" CABLE HARNESS AND INTO THE CONNECTOR/COMPONENT.
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING PROCEDURE ON THE VEHICLE, CHECK
THAT THE BATTERY VOLTAGE IS ABOVE 12V.
CONNECTOR CHECK PROCEDURE
The procedure includes the following checks:
1. Observation and check of the connector correct
position on the component or on the coupling con-
nector, making sure that the locking catch is re-
leased.
2. Observation of the terminals on the connector:
no rust marks or dirt should be present and it is
important to check terminal correct positioning on
the connector (i.e., all terminals aligned at the
same depth) and terminal integrity (i.e., that termi-
nals are not loose, open/bent, etc.). For connec-
tors whose terminals are not visible (e.g. Marelli
control unit) use a metal cable of suitable diameter
and introduce it carefully in the connector slot at
the same depth as for the other terminals of the
connector.
CAUTION
IN CASE OF TEMPORAL MALFUNCTIONING, CARRY OUT
ALL DUE CHECKS LOOKING FOR FAULT BY MOVING
SLIGHTLY THE CABLE HARNESS BEING INSPECTED.
MSS Mana GT ABS
Electrical system
ELE SYS - 77