Dodge D150 1990 Service Manual page 392

Rear wheel drive ram truck
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HORN DOES NOT
SOUND
HORN SOUNDS
INTERMITTENTLY.
TEST F U S E
P O O R
C O N N E C T I O N
A T H O R N C O N T A C T R I N G
W H E N
T U R N I N G
NOTE: IMMEDIATELY UNPLUG HORN
RELAY AND DISCONNECT WIRES
FROM HORNS
FUSE BLOWN
USE TEST UGHT BETWEEN HORN
RELAY SOCKETS 1 AND 3
(SEE INSET DIAGRAM)
R E M O V E H O R N P A D A N D
C H E C K C O N T I N U I T Y B E -
T W E E N S T E E R I N G S H A F T
A N D B O D Y G R O U N D
H O R N C I R C U I T
W I R I N G S H O R T E D
T O G R O U N D
U S E TEST L I G H T A T
H O R N S ( D E P R E S S H O R N
B U T T O N ) ( F I G . 2)
ZE
TEST UGHT ON
TEST LIGHT OFF
TEST LIGHT OFF
TEST UGHT ON
I N T E R N A L
S H O R T C I R C U I T
IN H O R N
H O R N N O T *
G R O U N D E D
FAULTY
H O R N RELAY
S H O R T E D
H O R N R E L A Y
WIRE T O H O R N
B U T T O N S W I T C H
G R O U N D E D O R H O R N
B U T T O N S W I T C H
G R O U N D E D
REFER T O T E S T
P R O C E D U R E S
R E P L A C E H O R N
RELAY W I T H A
K N O W N G O O D O N E
( F I G .
3)
FAULTY H O R N
W R O N G
F U S E S I Z E
TEST LIGHT ON
FAULTY O R I G I N A L
RELAY
TEST UGHT OFF
U N P L U G R E P L A C E M E N T
RELAY F R O M S O C K E T A N D
C O N N E C T A JUMPER
WIRE B E T W E E N RELAY
S O C K E T 1 A N D 2
S E E I N S E T D I A G R A M
I N S P E C T F O R O P E N
CIRCUIT IN W I R I N G F R O M
F U S E B L O C K T H R O U G H
RELAY B O A R D T O H O R N
TERMINAL
FAULTY H O R N S W I T C H
O R W I R I N G B E T W E E N
R E L A Y TERMINAL A N D
H O R N S W I T C H
HORN
RELAY CONNECTOR
ALL MODELS
TO HORN
SWITCH
TO FUSE
BLOCK
*IT IS IMPORTANT THAT H O R N S
BE A D E Q U A T E L Y G R O U N D E D .
G R O U N D I N G
C A N B E VERIFIED BY M A K I N G A
TEMPORARY JUMPER WIRE C O N N E C T I O N
B E T W E E N H O R N B R A C K E T ( S C R A T C H
T H R O U G H PAINT) A N D T H E BATTERY
N E G A T I V E TERMINAL.
J 9 0 8 G - 9

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