ELECTRICAL - BODY A N D C H ASSIS
1 2 -3 9
DIAGNOSIS
W IP E R - ON VEHICLE
1. Inspect for the following items:
a. Wiring harness is securely connected to wiper
and switch.
b. Wiper motor is securely grounded to body.
c. Wiper switch is securely mounted and grounded.
d. Check fuse.
2. If items in Step 1 check out, try operating wiper in
both "LO" and "H I" speeds, then turn wiper off
(blades should return to park position). If wiper
fails to operate correctly, proceed to Step 3.
3. Disconnect wiring harness from wiper and try
operating wiper as shown in Figure 50.
a. If wiper operates correctly independently of
switch and vehicle wiring, refer to the
DIAGNOSIS CHART - WIPER ON VEHICLE.
b. If wiper still fails to operate correctly in Step 3,
disconnect wiper linkage from motor crankarm
and try operating wiper again. If wiper
operates correctly independently of linkage,
check linkage for cause of wiper malfunction.
Fig. 5 1 -Checking Armature
c. If wiper fails to operate correctly independently
of linkage, remove wiper motor from vehicle
and refer to DIAGNOSIS CHART-WIPER OFF
VEHICLE.
TEST LIGHT PROBES
FOR
GROUND CHECK.
IF
LAMP
LIG H TS, ARMATURE IS
GROUNDED
COMMUTATOR HOOK
CHECK FOR
POOR WELD
JOINTS
TEST LIGHT PROBES,
BAR TO BAR CHECK
FOR OPENS - LAMP
SHOULD LIGHT BETWEEN
ADJACENT BARS
W IPER
GROUND STRA P
LO SPEED - AS SHOWN
HI SPEED - DISCONNECT JUMPER W IRE FROM
TERMINAL NO. 3.
OFF - LEAVE JUMPER CONNECTED TO NOS. 1 &3 BUT
DISCONNECT IT FROM GRD. ST R A P . W IPER SHOULD
STOP WITH GEAR SHAFT FLATS AS SHOWN.
AMMETER
0 - 3 0 A M P S.)
SHAFT IN
PARK PO SITIO N
GREEN
NATURAL
GRAY SLEEVING OVER
GREEN WIRE
GRAY
TESTING FOR OPEN COILS:
SERIES F - USING TEST LAMP,
(RECHECK SPLICE AND SOLDER JOINTS. >'
SHUNT F - TOUCH "A" AND "3". IF LAMP \
DOES NOT LIGHT. FIELD COIL ISOPEN.
\
(CHECK SPLICE AND SOLDER JO IN T S .)
\
TOUCH TEST LIGHT TO "A" AND
FRAME IF LAMP LIGHTS, FIELD
COILS ARE GROUNDED.
’‘A"
SPLICE JOINT
TEST
LIGHT "•'fc
Fig. 5 0 -Jum per Wire Connections
Fig. 5 2 -Testing Field Coils
LIGHT DUTY TRUCK SERVICE MANUAL
Summary of Contents for Light Duty Truck 1973
Page 1: ......
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Page 53: ...HEATER AND AIR CONDITIONING 1A 27 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 115: ...LIGHT DUTY TRUCK SERVICE M A N U A L HEATER AND AIR CONDITIONING 1A 89...
Page 123: ...BODY 1B 3 Fig 6 Typical 06 Van LIGHT DUTY TRUCK SERVICE MANUAL...
Page 149: ...BODY 1B 29 Fig 84 Body Mounting 06 Fig 85 Body Mounting 14 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 171: ...LIGHT DUTY TRUCK SERVICE M A N U A L Fig 2 Frame Horizontal Checking Typical FRAME 2 3...
Page 173: ...LIGHT DUTY TRUCK SERVICE M A N U A L Fig 4 10 30 Series Truck Frame FRAME 2 5...
Page 174: ...2 6 FRAME LIGHT DUTY TRUCK SERVICE MANUAL Fig 5 Underbody Reference Points G Van...
Page 185: ...FRONT SUSPENSION 3 11 Fig 16 Toe out on Turns LIGHT DUTY TRUCK SERVICE MANUAL...
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Page 266: ......
Page 351: ...ENGINE 6 15 Fig ID Sectional View of Eight Cylinder Engine LIGHT DUTY TRUCK SERVICE MANUAL...
Page 375: ...EN G IN E 6 39 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 376: ...6 4 0 ENGINE LIGHT DUTY TRUCK SERVICE MANUAL...
Page 377: ...ENG IN E 6 41 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 378: ...LIGHT DUTY TRUCK SERVICE MANUAL Fig 37L K Series Engine Front Mount 6 42 ENG INE...
Page 400: ...6 6 4 ENG INE LIGHT DUTY TRUCK SERVICE MANUAL...
Page 401: ...ENG IN E 6 65 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 402: ...6 6 6 ENGINE LIGHT DUTY TRUCK SERVICE MANUAL...
Page 403: ...E NG IN E 6 67 Fig 36V C Series Engine Mounts LIGHT DUTY TRUCK SERVICE MANUAL...
Page 410: ......
Page 423: ...EN G IN E C OOLING 6K 13 Fig 16 Overheating Chart LIGHT DUTY TRUCK SERVICE MANUAL...
Page 424: ...6 K 1 4 ENG INE COOLING Fig 17 Coolant Loss Chart LIGHT DUTY TRUCK SERVICE MANUAL...
Page 456: ...6M 32 ENGINE FUEL Fig K15 Accelerator Controls G Van L 6 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 492: ......
Page 512: ...Fig 18e Vacuum Advance Diagram V8 Engine...
Page 516: ...6 T 2 4 E M IS S IO N CONTROL SYSTEMS LIGHT DUTY TRUCK SERVICE MANUAL...
Page 528: ......
Page 590: ......
Page 593: ...CLUTCHES MANUAL TRANSMISSIONS 7M 3 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 598: ...7M 8 CLUTCHES MANUAL TRANSMISSIONS LIGHT DUTY TRUCK SERVICE MANUAL...
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Page 654: ......
Page 743: ...FUEL TANKS AND EXHAUST 8 13 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 744: ...8 14 FUEL TANKS AND EXHAUST LIGHT DUTY TRUCK SERVICE MANUAL...
Page 760: ...8 30 FUEL TANKS AND EXHAUST Fig 40 Exhaust Pipe P Models LIGHT DUTY TRUCK SERVICE MANUAL...
Page 761: ...FUEL TANKS AND EXHAUST 8 31 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 763: ...FUEL TANKS AND EXHAUST 8 33 LIGHT DUTY TRUCK SERVICE MANUAL...
Page 766: ......
Page 832: ...LIGHT DUTY TRUCK SERVICE MANUAL Fig 106 Power Steering Pump Mounting Typical 9 66 STEERING...
Page 833: ...PUMP ASSEMBLY STEERING GEAR TYPICAL SMALL V8 TYPICAL LARGE V8 STEERING 9 67...
Page 861: ...STEERING 9 95 Fig 134 Power Steering Pump Leakage LIGHT DUTY TRUCK SERVICE MANUAL...
Page 864: ......
Page 876: ......
Page 886: ...11 10 CHASSIS SHEET METAL LIGHT DUTY TRUCK SERVICE MANUAL...
Page 891: ...ELECTRICAL BODY AND CHASSIS 12 5 LIGHT DUTY TRUCK SERVICE MANUAL...
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Page 976: ...V...
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