Suzuki Samurai 1986, Service Manual

Page: 458 / 482

3-speed type
Fig. 21-12
r
PO
I
- - m - - e - - - - J
OFF
LOW
MAINTENANCE
1) Wiper trouble diagnosis
When wiper motor does not start even if
Wiper Switch is turned “ON”, check lead
connections and coupler connections. Then,
check the following.
a) Fuse blown or mounted incorrectly.
b) Wiper switch:
To check wiper switch: remove couplers
and check continuity between following
terminals by using circuit tester.
Switch connector
14. Yellow/White
15. Blue
16. Blue/Red
17. Blue/Black
18. Black
Blue/White
2-speed type
Yellow/
white
Blue Blue/red
Blue/white
High speed
Low speed
l
OFF
l
Wiper switch
3-speed type
OFF
Interval
Blue/
white
Blue Black
1.
Battery
2. Main switch
3. Fuse box
4. Wiper motor
5. Wiper washer switch
6. Washer motor
Wire color
B : Black
: Black/Blue
BI :
: Blue/Red
Blue/White
: Yellow/Blue
2
+
c) Break in wiper motor armature or poor
commutator brush contact:
To check these, check continuity between
Blue lead and ground, and Blue/Red wire
and ground respectively.
2) No-load run test
As shown in Fig. 21-13, using a 12V battery,
connect positive battery terminal to Blue
terminal and the negative terminal to motor.
If motor rotates at 45 57 r/min, this is
acceptable (for check). For
speed check, connect the positive terminal to
Blue/Red terminal and negative terminal to
motor. If motor rotates at 67 81 r/min,
this is acceptable.
Fig. 21-13 Testing motor
1. Positive terminal
2. Negative terminal
Wiper switch
21-10