Subaru XT 1988 Service Manual page 1276

6-3 WIRING DIAGRAM AND TROUBLESHOOTING
Relay type
Energizing circuit OFF
Energizing circuit ON
0 - - - -------..
4-pole
L d O I - - - - f
Normally-open
6-pole
O~---4
0---------+
No~mally-closed 4-pole
L6·1139
Key to symbols:
0- - -
~:
Current flows.
X---~:
Current does not flow.
Fig.
6
8) The overall wiring diagram of the vehicle is provided at
Working Precautions
the end of the manual.
TROUBLESHOOTING CHART
The troubleshooting chart explains trouble diagnosis of each
system by using step-by-step procedures which are laid out so
that the steps can be followed by tracing the wiring diagram.
For locations of the connectors and those of the electric units
and devices, refer to the wiring harness diagram and unit
location diagram.
4
Precautions when working with the parts mounted on
the vehicle
1) When working under a vehicle which is jacked up, always
be sure to use safety stands.
2) The parking brake must always be applied during working.
Also, in automatic transmission vehiclllS, keep the select lever
set to the P (Parking) range.
3) Be sure the workshop is properly ventilated when running
the engine. Further, be careful not to touch the belt or fan
while the engine is operating.
4) Be careful not to touch hot metal parts, especially the
radiator and exhaust system immediately after the engine has
been shut off.